Abstract: One embodiment of a shock apparatus comprises a plurality of impact objects spatially ordered according to decreasing mass along a substantially linear path; a guide to guide movement of the impact objects along the path; and a plurality of spacers, one spacer between each adjacent pair of impact objects in the spatial order. The guide and spacers enable a plurality of temporally ordered impacts involving the plurality of impact objects. In one embodiment, at least one of the impact objects comprises an impact portion positioned at a point where the impact object impacts at least one other impact object; and the properties of the impact portion are selectable to affect the magnitude and duration of a shock acceleration pulse experienced by the at least one impact object.

Abstract: Disclosed is a method and apparatus for detecting the type of anesthetic gas. The method comprises the steps of: passing a plurality of light beams through a gas chamber injected with said anesthetic gas, wherein, said anesthetic gas has respective absorption characteristic with respect to each light beam; detecting the light intensities of the attenuated light beams absorbed by the anesthetic gas, respectively, to obtain the relative absorption coefficients of one of the attenuated light beams with respect to the others; mapping the obtained relative absorption coefficients into a coordinate system, which corresponds to said relative absorption coefficients; and determining the type of said anesthetic gas based on the mapping position of said relative absorption coefficients in the coordinate system.

Abstract: An object is to provide a gas sensor which can suppress positional shift of a to-be-held member such as a gas detection element, as well as a method of manufacturing the gas sensor. A gas sensor (101) includes a gas detection element (111), a metallic shell (131), a plate packing (157), and a first packing (159). A proximal end surface (113t2) of a projection (113) of the gas sensor element (111) and a central inner circumferential surface (135n) of the metallic shell (131) form an acute-angle clearance (120). The first packing (159), which has a wedge-like cross section, is disposed in the clearance (120) such that the first packing (159) is pressed against the proximal end surface (113t2) of the projection (113) of the gas sensor element (111) and the central inner circumferential surface (135n) of the metallic shell (131).

Abstract: A method of detecting particles during inspection is provided. The method includes establishing a security checkpoint including a detection system, wherein the detection system includes a chamber defining a passage and includes a plurality of jets. The method also includes passing an individual through the passage, enhancing a convection plume including particles from the individual by blowing air through at least one of the plurality of jets, and absorbing the particles in a preconcentrator including a filter encased in a frame having a high thermal conductivity. Moreover, the method includes evaporating the particles absorbed in the preconcentrator and using a detector to determine whether the particles are from at least one of an explosive material and a narcotic substance.

Abstract: The invention relates to an FET-based gas sensor comprising a gas channel for diffusing a measuring gas to a gas-sensitive layer which is actively connected to a FET for signal readout. According to the invention, an electrochemical element is at least partially inserted into the gas channel for the electrochemical conversion of interfering gases. The arrangement is permeable to the target gas.

Abstract: A gas sensor includes a heater, leads connecting electrically with terminals of the heater, and a porcelain insulator surrounding the terminals of the heater within an air cover. The gas sensor also includes a recess formed in an end of the porcelain insulator to define a clearance between itself and an inner wall of the air cover. A gas flow path is defined to extend from an inner chamber of the air cover to a ventilator through a clearance between an outer periphery of the porcelain insulator and an inner periphery of the air cover and the recess to lead the gas having entered the inner chamber outside the sensor, thereby minimizing the entrance of the gas into the porcelain insulator to avoid the exposure of the terminals to the gas. This avoids the corrosion of the terminals with the gas to ensure the mechanical durability of the gas sensor.

Abstract: An apparatus detects a leak of an electrically conductive fluid from a disposable plastic bag used in mixing applications, such as during bioprocessing in a sterile environment. In one embodiment, the bag is associated with a sensor for detecting a leak from an interior compartment. The sensor may be arranged to detect either a leak internal to the at least two material layers of the bag or external to the outer layer, or both. Related methods are also disclosed.

Abstract: A pressure testing apparatus is provided for internally pressure testing pipe. A mandrel is secured to a frame and is adapted to receive a pipe thereon such that a gap exists between an outer surface of the mandrel and an inner surface of the pipe. A first end cap is disposed on an outer surface proximal a first end of the mandrel. A second end cap is connected to a second end of the mandrel. First and second seal members are disposed between the first and second end caps and the first and second pipe ends, respectively, such that the first and second seal members abut respective ends of the pipe disposed on the mandrel. A line is in fluid communication with the gap to fill the gap with a testing fluid.

Abstract: A method of operating a probe based instrument includes a light source that generates and directs a beam of light towards a probe of the instrument to detect a property of probe deflection. The method automatically adjusts the position of the light beam on the probe based on movement of the probe by a Z actuator so as to eliminate apparent parasitic deflection of the probe. A light source assembly for detecting deflection of a probe preferably includes a base, a tip/tilt stage mounted on the base and a light source supported by the tip/tilt stage. The tip/tilt stage includes at least one electrically actuated fine adjustment actuator that controls the tip/tilt stage, preferably independently of movement of the AFM scanner used to move the probe.

Abstract: A monolithically integrated 3-D membrane or diaphragm/tip (called 3-D tip) of substantially all UNCD having a tip with a radius of about less than 50 nm capable of measuring forces in all three dimensions or being used as single tips or in large arrays for imprint of data on memory media, fabrication of nanodots of different materials on different substrates and many other uses such as nanolithography production of nanodots of biomaterials on substrates, etc. A method of molding UNCD is disclosed including providing a substrate with a predetermined pattern and depositing an oxide layer prior to depositing a carbide-forming metallic seed layer, followed by seeding with diamond nano or micropowder in solvent suspension, or mechanically polishing with diamond powder, or any other seeding method, followed by UNCD film growth conforming to the predetermined pattern.

Abstract: An engine torque sensory system (10), adapted for use with an engine-driven vehicle (12) having a flexplate (18), including at least one sensor (26) fixedly attached on the surface of the flexplate (18) and operable to detect deformations along the surface of the flexplate (18) caused by the generated engine torque, and further including a receiver (28) communicatively coupled to the sensor (26), spaced from the rotating flexplate (18), and operable to convert sensor readings to correlative engine torque values.

Abstract: The invention relates to a method for diagnosing the degree of ageing of a catalyst arranged in the exhaust gas channel of an internal combustion engine, wherein the oxygen storage capacity of the catalyst is determined by means of the signals of a waste gas probe arranged upstream and downstream from the catalyst according to the OSC method when a rapid change occurs in the air/fuel ratios between a rich and lean mixture composition supplied to the internal combustion engine. The aim of the invention is to provide a method for determining the degree of ageing of a catalyst arranged in the exhaust gas channel of an internal combustion engine, wherein it is possible to ascertain the degree of ageing of a catalyst in a more accurate and more reliable manner, requiring little measurement effort.

Abstract: The invention relates to a method for determining an indicator of the stresses to which a construction vehicle fire is subjected during a given period in which the product of the load transported by the vehicle and the distance traveled by the vehicle during the period is adjusted by an adjustment factor based on use parameters of the vehicle.

Abstract: A tire condition monitor device includes a circuit board mounted on a tire wheel for detecting a pneumatic pressure in an interior of a tire. The circuit board is covered with urethane resin. The urethane resin has finer resin meshes as compared with the conventional silicon resin serving as a board protecting resin. Since sulfur gas and water is hard to permeate through the urethane resin, gas barrier and dampproof properties can be improved. In a method of manufacturing the tire condition monitor device, a prebaking process is carried out before aboard protecting process of covering the circuit board with the urethane resin. Since moisture contained in the circuit board is vaporized, the circuit board covered with the urethane resin can reliably be protected from moisture.

Abstract: A spindle direction engaging device moves at least one of spindles in a mutually separating direction to closely engage a lock piece or a lock portion in a spindle direction of spindles while the lock piece is locked to the lock portion when a tire is not mounted. A second spindle includes a groove extending in a peripheral direction along an outer periphery thereof in sliding contact with the lock piece; sliding surfaces of the lock piece and the groove are receiving portions formed as flat surfaces to receive separating forces acting on both the spindles. A correction device corrects a gap between an inner ring of the spindle bearing and rolling elements of the spindle bearing, or a gap between an outer ring of the spindle bearing and the rolling elements of the spindle bearing, while the spindle is rotating. Preload bolts include a coolant passage formed by hollowing a corresponding portion passing a mounting hole of a detector, and a coolant can thus be supplied to the coolant passage.

Abstract: The device comprises means for measuring the pressure of the gas contained in a tire of a vehicle, means for collecting pressure measurement data and means for calculating the change in pressure between two instants of measurement data collection. The device further includes clocking means for clocking the time of the measurement data collection and for calculating the change in pressure between clocked instants of collection. The device also makes it possible for the pressure measurement to be temperature-compensated.

Abstract: An apparatus (10) for bulge testing an article (12) comprises a pressure vessel (14) arranged to define a chamber (15), the pressure vessel (14) has a first aperture (28) and a second aperture (30), means to pressurise the chamber (15), means (19) to measure the deflection of the article (12, means (39) to measure the pressure in the pressure vessel (14) and means (18) to determine material properties of the article (12) using the measurements of pressure in the pressure vessel (12) and the measurements of deflection of the article (12). A piston (24) is arranged to move within the pressure vessel (14) and the chamber (15) is filled with a fluid. The means to pressurise the pressure vessel (14) comprises a gun (16) arranged to fire a projectile (36) to strike the piston (24) to produce a high pressure in the fluid in the chamber (15) in the pressure vessel (14) to deform an article (12) placed over the first aperture (28) in the pressure vessel (14) to seal the pressure vessel (14).

Abstract: An air data system is described that includes a cone-shaped probe, a plurality of pressure transducers, and a processing device. The cone-shaped probe includes a first pressure port formed in a substantial tip of the probe and extending therethrough, and a plurality of pressure ports formed in a substantially evenly spaced circular pattern about a sloped surface of the probe and extending through the probe. The plurality of pressure transducers are each configured to receive at least one pressure transferred through at least one of the pressure ports and output one or more signals related to the pressures sensed. The processing device is configured to receive signals originating from the transducers. The processing device is further configured to calculate a static pressure, an angle of attack, and an angle of sideslip based on the received signals.

Abstract: A thermal gas-flow measuring instrument has a first heating resistor placed in the gas to be measured. A temperature sensing resistor is positioned upstream or downstream of the first heating resistor and generates signals relating to the flow rate. Between the first heating resistor and the support for supporting the first heating resistor is a second heating resistor that is electrically insulated from the first heating resistor. The second heating resistor suppresses the heat being transferred from the first heating resistor to the support. A control circuit controls the temperatures of the first heating resistor and the second heating resistor so that the operational temperature range of the second heating resistor or the temperature range at the joint section between the first heating resistor and the second heating resistor is at or above the temperature at which water droplets evaporates to disappear by film boiling.

Abstract: To provide a leakage inspection apparatus for a liquid storage tank is provided that enables easy and accurate leakage inspection of the tank even when liquid is stored in the liquid storage tank. At least a part of a periphery of a liquid storage tank 2 is submerged in water, and the apparatus has a depressurizing device 32 that depressurizes inside of this liquid storage tank 2. It includes a rod part 24 inserted in the liquid storage tank 2, and a float 25 that is fitted with the rod part 24 and that is floated on the surface of the liquid in the liquid storage tank 2 and moves along the rod part 24 in accordance with displacement of the liquid surface.

Abstract: The invention relates to a measuring cell, comprising a support and a sensor, whereby a measuring chamber is arranged between the support and the sensor and the sensor is arranged on the support by means of individual material deposits provided between the support and the sensor. Said material deposits are preferably gold bumps.

Abstract: Capacitive bulk acoustic wave x, y and z-axes gyroscopes implemented on (100) and (111) silicon substrates are disclosed. Exemplary gyroscopes comprise a handle substrate, a bulk acoustic wave resonator element supported by the handle substrate, and a plurality of electrodes surrounding and separated from the resonator element by very small capacitive gaps. The electrodes can excite and detect at least two degenerate bulk acoustic wave resonant modes in the resonator. Advantages include reduced size; higher Q, which improves noise and bias stability; larger bandwidth, and improved shock resistance. In addition, the high Q is maintained in atmospheric or near-atmospheric pressure which reduces the cost and complexity of the wafer-scale packaging of the gyroscope.

Abstract: A vibrator 10, which is formed in a silicon wafer 1 by means of MEMS technique, has eight beam portions (beams) 12 supported at a central portion 11 and extending in the radial direction while mutually keeping the same angle and has a ring portion 13 connected to the eight beam portions 12. Outside the ring portion 13, eight electrodes 21a to 21h for electrostatic actuation, capacitance detection, or the like are spaced uniformly with a gap 22 created between the ring portion 13 and the electrodes 21a to 21h. Inside the ring portion 13, sixteen electrodes 23 for frequency adjustment are spaced uniformly with a gap 24 created between the ring portion 13 and the electrodes 23.

Abstract: Multi-axis micromachined accelerometer and rate sensor having first and second generally planar masses disposed side-by-side and connected together along adjacent edge portions thereof for torsional movement about axes parallel to a first axis in response to acceleration along a second axis and for rotational motion about axes parallel to the second axis in response to acceleration along the first axis. The masses are driven to oscillate about the axes parallel to the second axis so that Coriolis forces produced by rotation about a third axis result in torsional movement of the masses about the axes parallel to the first axis. Sensors monitor the movement of the mass about the axes, and signals from the sensors are processed to provide output signals corresponding to acceleration along the first and second axes and rotation about the third axis.

Abstract: A flexure plate accelerometer system includes a flexure plate and two fixed plates on either side of the flexure plate. The flexure plate generates a flexure plate signal as a function of reference signals received in the fixed plates. A precision transformer generates the reference signals from a precision sine wave generated by a symbol generator controlled by a microprocessor. The microprocessor controls the symbol generator and activates an analog-to-digital converter in response to a signal coincident with a positive and negative peak of the precision sine wave. The analog-to-digital converter generates a digital word from the flexure plate signal, which is processed further in the microprocessor.

Abstract: A moving member having a plurality of moving electrodes is supported by support members at both ends thereof on a substrate surface in such a way that it can be subjected to displacement in a two-dimensional plane. A plurality of fixed electrodes are arranged to face the plurality of moving electrodes respectively, thus forming different facing areas therebetween when an input acceleration is zero. The facing areas formed between pairs of the electrodes facing each other are varied in response to the displacement of the moving member, whereby a capacitance caused by one pair of the electrodes whose facing area is relatively small is used to detect a relatively small input acceleration, and a capacitance caused by the other pair of the electrodes whose facing area is relatively large is used to detect a relatively large input acceleration.

Abstract: A method for measuring operational density and/or operational sound velocity in a gaseous medium uses a sound transducer that is capable of vibrating, which is disposed in a housing in such a manner that chambers having the same volume are formed on both sides of the sound transducer, which are filled by the gaseous medium. The chambers are connected with one another by way of an open channel having defined dimensions. Using an exciter vibration applied to the sound transducer, the impedance of the sound transducer, which is influenced by the density of the gaseous medium, is determined within a frequency range that can be established, as a function of the exciter frequency. From this, the operational density and/or the operational sound velocity of the gaseous medium are determined using a plurality of characteristic frequencies of the sound transducer vibrating in the gaseous medium.

Abstract: An ultrasound probe includes a transducer which is mechanically oscillated to sweep beams from the transducer over an image region of a subject. The transducer is located in a first compartment of a fluid-filled chamber which is coupled to a second compartment of the fluid-filled chamber by a bubble trap tube. A drive shaft which is coupled to oscillate the transducer enters and passes through the secondary chamber before terminating at the transducer oscillation mechanism in the main chamber. This locates the dynamic seal of the drive shaft which is connected between the fluid-filled chamber and the outside air so that any air leakage of the seal will leak into the secondary compartment and not into the compartment where the transducer is located.

Abstract: A method and apparatus for identifying a sample, involves illuminating the sample with light of varying wavelengths, transmitting an acoustic signal against the sample from one portion and receiving a resulting acoustic signal on another portion, detecting a change of phase in the acoustic signal corresponding to the light of varying wavelengths, and analyzing the change of phase in the acoustic signal for the varying wavelengths of illumination to identify the sample. The apparatus has a controlled source for illuminating the sample with light of varying wavelengths, a transmitter for transmitting an acoustic wave, a receiver for receiving the acoustic wave and converting the acoustic wave to an electronic signal, and an electronic circuit for detecting a change of phase in the acoustic wave corresponding to respective ones of the varying wavelengths and outputting the change of phase for the varying wavelengths to allow identification of the sample.

Abstract: A method and apparatus for identifying a sample, involves illuminating the sample with light of varying wavelengths, transmitting an acoustic signal against the sample from one side and receiving a resulting acoustic signal on another side, detecting a change of phase in the acoustic signal corresponding to the light of varying wavelengths, and analyzing the change of phase in the acoustic signal for the varying wavelengths of illumination to identify the sample. The apparatus has a controlled source for illuminating the sample with light of varying wavelengths, a transmitter for transmitting an acoustic wave, a receiver for receiving the acoustic wave and converting the acoustic wave to an electronic signal, and an electronic circuit for detecting a change of phase in the acoustic wave corresponding to respective ones of the varying wavelengths and outputting the change of phase for the varying wavelengths to allow identification of the sample.

Abstract: An ultrasonic diagnosis system includes an ultrasonic probe, which has an array of plural ultrasonic transducer elements, for transmitting an ultrasonic wave to an object, and for receiving an echo signal thereof to output a detection signal. A testing unit sets a testing mode, and operates in test operation of the plural ultrasonic transducer elements while the testing mode is set, so as to acquire a testing detection signal. There is a display panel. A display control unit controls the display panel to display information of the testing detection signal obtained for each of the ultrasonic transducer elements. Furthermore, the testing unit, when in a first inspection, drives the ultrasonic transducer elements together to obtain the testing detection signal, and when in a second inspection, drives the ultrasonic transducer elements by at least one element to obtain the testing detection signal.

Abstract: A cover member of an ultrasonic sensor has a first engagement portion and a second engagement portion, which are respectively engaged with a third engagement portion and a fourth engagement portion of a sensor body. The engagement portions are arranged in such a manner that a force applied to the cover member due to an engagement between the first engagement portion and the third engagement portion and a force applied to the cover member due to an engagement between the second engagement portion and the fourth engagement portion respectively have opposite directions to be substantially countervailed when the sensor body is attached to the cover member. Thus, the cover member can be restricted from slanting when the sensor body is fixed to the cover member.

Abstract: A sensor assembly suitable for a vehicle fuel module assembly includes a plastic body defining a bore therethrough and having a barrier with a continuous peripheral edge encapsulated in the body. An aperture extends through the plate. A sensor chip is bonded to the plate over the aperture.

Abstract: An oscillation-type state measuring apparatus has an oscillation-type sensor, a reference oscillation signal generating circuit for producing reference oscillation signals, a beat signal generating circuit for generating beat signals having a beat frequency by synthesizing the sensor oscillation signals and the reference oscillation signals, a counter for measuring a period of the beat signals, and a physical quantity calculation circuit for calculating a physical quantity from the period of the beat signals and from the period of the reference oscillation signals. The reference oscillation signal generating circuit varies the frequency of the reference oscillation signals, and the physical quantity calculation circuit calculates the physical quantity based on the varied period of the reference oscillation signals.

Abstract: A sensor assembly includes a housing and a tube. The housing has a first leading edge portion which is capable of being located in a compressor/fan inlet flow path and which includes an interior wall section. The tube has a proximal portion including an air inlet which is adapted to receive a compressor bleed air flow and a distal portion which is located in the housing and which includes at least one air outlet hole. The hole is spaced apart from the interior wall section and is aligned to direct at least some compressor bleed air flow to impinge against the interior wall section. The housing includes an opening which receives air from the flow path when the housing is located in the flow path, wherein the opening is adapted for fluid communication with a sensor, and wherein the sensor measures at least one of air temperature and air pressure.

Abstract: A redundant pressure transmitter for redundantly measuring pressure of a process fluid comprises a transmitter housing, transmitter circuitry, a remote seal assembly including a first pressure sensor, and a second pressure sensor positioned in the transmitter housing. The remote seal assembly also comprises a remote seal flange, a communication system and a capillary tube. The remote seal flange communicates with the process fluid and the first pressure sensor senses the process fluid pressure at the remote seal flange. The communication system relays output of the first pressure sensor to the transmitter circuitry, and the capillary tube communicates the process fluid pressure to the transmitter housing via a fill fluid, where the second pressure sensor senses the pressure of the process fluid through the fill fluid.

Abstract: A sensor and insertion assembly 2 is used for intravascular measurement of pressure in a living body. The assembly includes a sensor chip 6 having a substrate body 8 with a recess covered by a pressure sensitive film 10 thereby forming a cavity 12. A piezoelectric element, preferably in the form of a piezoelectric film 14, is arranged in connection with the pressure sensitive film, and energy is applied to the piezoelectric element such that acoustic waves are generated in the element. The piezoelectric element is arranged to generate an output signal, representing the pressure at the film, in dependence on the measured properties of the acoustic waves related to the deflection of the pressure sensitive film.

Abstract: A pressure pickup probe assembly includes a probe housing, a plurality of openings, and a pickup probe. The probe housing is configured to be mounted within, and extend at least substantially across, a flow passage. The probe housing further includes at least an inner surface and an outer surface. The probe housing inner surface defines at least a plenum therein. The plurality of openings is formed in the probe housing, and each opening extends between the probe housing inner and outer surfaces and is in fluid communication with the probe housing plenum. The pickup probe is disposed at least partially within the probe housing, and has at least a first end, a second end, and a bore extending between the first and second ends and that is in fluid communication with the probe housing plenum.

Abstract: A lead frame made from a metallic thin plate, comprising: at least two stage portions on which a physical quantity sensor chip is mounted, and which have an area smaller than a mounting surface of the physical quantity sensor chip; a rectangular frame portion which encloses the stage portions; a plurality of leads including connecting leads which extend in a direction of the stage portion from the frame portion and are positioned on the periphery of the stage portion, and which connect the frame portion and each of the stage portions; and an easily deformed portion formed on the connecting leads which inclines the stage portion by becoming deformed; and the physical quantity sensor chip is mounted by superimposing the mounting surface on the stage portion and a portion of the plurality of leads in the direction of thickness of the frame portion.

Abstract: A pressure sensor includes a metal housing and a semiconductor chip. The housing has a diaphragm unitary with the housing and an inlet for introducing fluid to the diaphragm. The inlet has a first end exposed to the diaphragm and a second end exposed to an outside of the housing. The housing has a thin-wall portion at the first end of the inlet and the thin-wall portion serves as the diaphragm. The chip is mounted on the diaphragm. The area and thickness of the chip are set so that separation between the chip and diaphragm can be prevented. Since the separation is prevented based on the area and thickness of the chip, there is no need that the diaphragm is made of a material having a thermal expansion coefficient similar to that of the chip.

Abstract: Improvements to a sealed die material testing apparatus having dies with associated seal plates include providing apparatus modifications that enable the apparatus to be employed as a non-sealed die system. Improvements include adapting the seal plates to carry spacers and, alternatively, adapting the apparatus to effect a gap between the seal plates.

Abstract: The invention relates to a special electrode surface for electrodes of a flow measuring device. In order to provide more measurement reliability for abrasive substances to be measured, for example in multiphase substances to be measured, according to the invention the size of the active electrode surface (3) is optimized independently of the size of the electrode (2) to be sealed in by means of a coating (4) so that an electrically nonconductive coating leaves free only the electrically active surface (3).

Abstract: An electro-magnetic flow sensor, which is arranged for measuring a flow rate of liquid, includes a micro controller and a liquid flowing apparatus communicatively linking to the micro controller. The liquid flowing apparatus includes a flow chamber housing having a flow chamber for receiving the liquid therein, a magnetic source communicating with the flow chamber housing for generating a magnetic field within the flow chamber so as to allow the liquid exposing in the magnetic field, and an array of electrodes alignedly integrated with the flow chamber housing for measuring a voltage magnitude of flow generated in the flow chamber when the liquid flows within the flow chamber under the magnetic field, wherein the micro controller reads the voltage magnitude and converts the voltage magnitude into the flow data of the liquid.

Abstract: An electromagnetic flowmeter includes a measuring tube (1) through which a fluid to be measured flows, electrodes (2a, 2b) which detect an electromotive force generated by a magnetic field applied to the fluid and the flow of the fluid, an exciting coil (3) which applies, to the fluid, a time-changing magnetic field asymmetrical to a plane (PLN) which includes the electrodes (2a, 2b) and is perpendicular to the axial direction of the measuring tube, a signal conversion unit (5) which extracts a ?A/?t component from the resultant electromotive force of the electromotive force based on the ?A/?t component irrelevant to the flow velocity of the fluid and the electromotive force based on a v×B component originating from the flow velocity of the fluid, which are detected by the electrodes (2a, 2b), and a flow rate output unit (6) which removes a variation factor for a span as a coefficient applied to the magnitude (V) of the flow velocity of the v×B component in the resultant electromotive force, on the basis of t

Abstract: The invention relates to a vortex flow meter according to the preamble of patent claim 1. In order to provide a surface which is simple but nevertheless resistant to the substances to be measured used in the application case, according to the invention all parts of the measurement tube of the vortex flow meter which come in contact with the substance to be measured are coated with a less noble material, which is resistant to the respectively relevant substance to be measured, the basic material not having this resistance.

Abstract: A flowmeter includes: a transit time method unit having a sensor and a reception signal amplification control unit and a flow rate calculation unit which are connected to the sensor via a sensor selector switch; a pulse Doppler method having a reception signal amplification control unit and an integration calculation unit which are connected to the sensor; a transmission/reception timing control unit common to them; a measurement method selection control unit for controlling switching between the transit time method unit and the pulse Doppler method unit, and parallel operation; and a measurement value output selector switch for selecting the output of the transit time method unit and the pulse Doppler method unit. That is, the single flowmeter can perform flow rate measurement by the transit time method having no restriction on the measurement range as well as by the pulse Doppler method having an upper limit of the measurement range but enabling a highly accurate measurement.

Abstract: A probe assembly for use in the extraction of analytes from a sample, which probe includes an elongate cylinder portion which is arranged to rotate about its longitudinal axis, and having thereon one or more veins extending away from the cylinder portion.

Abstract: A linear motion device has: a linear motion body externally fitted onto a shaft and making a relative linear motion along the shaft; a plurality of balls retained in a rolling element groove formed in an inner surface of the linear motion body, and rolling between the rolling element groove and the shaft; separators interposed among the balls; and a circulating path formed in the linear motion body and for circulating the balls from one end side of the rolling element groove to the other end side thereof; wherein the linear motion device is charged with grease containing base oil which is 220-395 in worked penetration defined by JIS K2220 and 50-500 mm2/s in kinematic viscosity at 40° C.

Abstract: An actuator has an output ram driven to extend and retract by a rotating lead screw. The lead screw is coupled with a rotating input shaft via a lost-motion drive sleeve connected with the input shaft by cooperating threads so that rotation of the drive shaft causes both axial and rotational movement of the drive sleeve. The ram is locked in its retracted position by several radially-extending locking keys, one end of which engage an extension sleeve fixed with the ram and the other end of which are engaged by a lock sleeve. Rotation of the input shaft causes the drive sleeve to move axially and engage the lock sleeve, thereby pulling it to one side and allowing the locking keys to move radially out and disengage the extension sleeve to allow it to extend.

Abstract: A dual clutch transmission apparatus includes: a first input shaft; a second input shaft arranged in parallel with the first input shaft; a counter shaft arranged in parallel with the first input shaft; a connecting clutch adapted to establish or interrupt a transmitting path of rotation of the first input shaft to the output shaft; mid a low/high shift stage switching mechanism having a low-speed shift stage gear train and a high-speed shift stage gear train, each mounted on the counter shaft and the output shaft, the low/high shift stage switching mechanism having a low/high shift stage switching clutch stretching the low-speed shift stage gear train and the high-speed shift stage gear train and changing a rotational speed of the counter shaft to a high or low rotational speed. Either the connecting clutch or the low/high shift stage switching mechanism is selected.