Abstract: A punch having wings is driven through framing members and then rotated. Rotation of the punch causes the wings to crimp the framing members together. An angular crimping technique where piercing members are driven through framing members in at least two different directions to crimp the framing members together. A fastenerless cinching tool pierces adjacent framing member and crimps the framing members together.

Abstract: A closure tool (10, 40) for closing heavy-duty clips (11) as used for example in the building trade and in agriculture has a body (13), a pair of handles (14) mounted on the body (13) on pivots (15) and a pair of anvils (18, 20) movable relative to each other from a spaced position to closure position in response to relative movement of the handles (14) and the body (13). A moving member (17) is engaged by the handles (14) and is movable therewith, and one of the anvils (18) is connected to and movable with the moving member (17). The handles (14) may have spigots (44) engaged in a slot (43) in a cylindrical moving member (17) in a barrel part (41) of the body (13), or each handle (14) may have a quadrant shaped first gear engaging a rack second gear moving member slidably mounted in the body.

Abstract: A manufacturing system for folding sheet bars, particularly sheet metal bars, comprising a folding press with two press beams, which are adjustable in relation to each other and provided with folding dies, whereby the folding press is fed by means of an automated manipulating system. The manipulating system has three hinged arms connected via pivoting devices to form an arrangement of hinged arms. A first hinged arm is swivel-mounted on a swivel axle extending in a swivel device parallel to a guide track of a linearly displaceable chassis. A second and a third swivel axles supporting the hinged arms are arranged extending parallel to the swivel axle of the swivel device. A gripping system and a seizing device for picking up the sheet bars are arranged in another end area of the hinged-arm arrangement. A positioning device assures that the sheet bar is correctly positioned for the folding process.

Abstract: A grease supply confirming device confirming the supply of a grease into a bearing, according to the present invention includes a detecting member an elastic supporting member and a movable body. The movable body such as a metal spherical body is movably provided in a piping through which a grease to be supplied flows. The elastic supporting member is provided in the piping for supporting the movable body. The detecting member such as an eddy current type displacement sensor detects to see whether or not the grease is supplied in accordance with the displacement of the movable body. The grease supply confirming device further includes an abnormality judging circuit connected to the detecting member for judging the abnormality in grease supply, and an outputting portion for outputting an alarm according to the instruction from the abnormality judging circuit.

Abstract: A vacuum generating device and method include a member that defines a passage, a first valve, a second valve, a fluid communication conduit, a transducer, and a processor. The passage extends between a first end and a second end, and includes a constriction that defines an orifice. The first valve connects the first end of the member and an ambient environment, and is electrically positionable in first and second configurations. The first configuration permits generally unrestricted fluid flow between the orifice and the ambient environment, and the second configuration substantially prevents fluid flow between the orifice and the ambient environment. The second valve has a first port and a second port. The first port is adapted for fluid communication with a pressure source at a first pressure level. The second valve is electronically adjustable. The fluid communication conduit connects the second end of the member and the second port of the second valve.

Abstract: The calibration device includes a guide surface and an angle gauge supported relative to the guide surface on a first side of the guide surface. The angle gauge is adjustable to measure a skew angle of the ultrasonic transducer on the guide surface. The angle gauge is slidable along a length of the guide surface. The angle gauge is rotatably supported parallel to the guide surface. A gauge block rotatably supports the angle gauge.

Abstract: An apparatus and system are disclosed for in situ measurement of downhole fluid flow using Doppler techniques. First, a baseline speed of sound is established as close to the desired measurement point as possible. This speed of sound measurement is then used in Doppler calculations for determining flow velocities based from induced Doppler shift resulting from fluid flow. A heterodyne receiver arrangement is preferably used for processing so that the flow direction can be determined and the detection sensitivity for low flow velocities can be enhanced. From in situ measurements, well kicks may be spotted and dealt with in real-time. In addition, current theoretical models of rheological properties may be verified and expounded upon using in situ downhole measurement techniques. Furthermore, the velocity measurements described herein can be used to recognize downhole lost circulation and/or gas/water/oil influxes as early as possible, even when the mud recirculation pumps are turned off.

Abstract: The present invention refers to a method of detecting the moisture in an apparatus for treating and preparing food, as well as to a method of treating and preparing food. In the method according to the invention, the current temperature values and speed values of the asynchronous motor driving a gas supply and circulation mechanism are compared to at least one characteristic line which is stored in a computer, and the current moisture in the gas mixture is determined from the deviation ?N of the measured speed from the speed of the stored characteristic line. The present invention also comprises an apparatus for treating and preparing food that, in particular, serves to carry out the method of determining the moisture in a gas mixture.

Abstract: A method is made available for conducting an integrity test of filter elements (3), in particular of sterile filters. The integrity test involves direct measurement, at constant pressure, of a liquid flow on the inflow side of the filter element (3) to be tested. The test method is practically independent of changing environmental conditions, provides a result which is not distorted by a change of pressure on the inflow side of the filter element, and permits a very short measurement time.

Abstract: A constant-head soil permeameter for determining hydraulic conductivity of earthen materials is inserted into a borehole at the desired test depth. A calibrated reservoir, disposed on the ground surface, is attached thereto with a suitable length of hose. Water is added to the calibrated reservoir and allowed to flow freely into the borehole until an equilibrium level is reached in the borehole and inside the soil permeameter. The water flowing to the permeameter is throttled by buoyant float pressure that is greatly increased by a single lever, lever-lever, or lever-link-lever valve control assembly which provides considerable versatility and mechanical advantage, thereby allowing more constant head control and much greater depths of testing than previously attained by known permeameters. A filtered vent system, backflow check valve, and seals restrict entry of soil particles and debris, thereby minimizing cleaning and maintenance of the invention.

Abstract: A device for measuring the viscosity and/or the density of a fluid using a resonator capable of mechanical vibrations. The resonator is capable of being brought into contact with the fluid. An oscillator circuit is also provided, wherein the oscillator circuit has a first feedback network and a second feedback network.

Abstract: A method and apparatus for determining solute levels by affinity viscosimetry involving a sensitive fluid, in which the sensitive fluid flows continuously through a first hydraulic resistor in the flow direction of the dialysis chamber, and the sensitive fluid modified by dialysis simultaneously flows through another resistor, wherein the pressure differences between the resistors is determined on-line with the aid of pressure sensors and converted into a relative value which is approximately proportional to the concentration of solute.

Abstract: Viscometer (80) with a sample cup (42) rotatable by a pulley (26) and a timing belt (30) to shear a tested fluid thus imparting torque to a bob (44) mounted on a shaft (10) supported via a frictionless bearing (58), an optical distance sensor assembly (12) measures the distance to an arm (70) which is connected to the top of shaft (10). This distance information is further converted to the viscosity of the tested fluid.

Abstract: Brittleness of a coating substance such as a coating film that is too brittle and/or too thin to be independently removed or handled is rated on the basis of an outcome of detection of acoustic emissions which are produced when a test film piece prepared by laminating a support with the coating substance is deformed by a compression transverse test device and detected by an AE sensor attached to the test film.

Abstract: An exemplary embodiment is a method, system and storage medium for fuel driveability index detection. The system includes an engine and an oxygen sensor disposed within the exhaust gas passage of the engine. An engine control module is operatively connected to the engine. The engine control module has a processor for obtaining a first input signal indicating a first oxygen sensor voltage, obtaining a second input signal indicating a second oxygen sensor voltage at a period subsequent to the first input signal, determining a first voltage trend based on the first input signal and the second input signal and determining whether the first voltage trend is decreasing at a rate greater than a first voltage threshold rate.

Abstract: A transmitter for a tire condition monitoring apparatus, which is powered by a battery. The transmitter includes a sensor for periodically detecting the condition of the tire, a transmission circuit for wirelessly transmitting data representing the detected tire condition, and a controller for controlling the sensor and the transmission circuit. When the detected tire condition is abnormal, the controller shortens the detection interval of the sensor. As a result, the transmitter immediately informs a driver of abnormality in the condition of the tire.

Abstract: A tire parameter sensing system (12) for sensing a parameter of a tire (16) includes a power transmitting antenna (44) that is actuatable for producing a magnetic field at a location of the tire (16). A rim (140) upon which the tire (16) is mounted includes first and second magnetically conductive surface portions (160 and 168) that form a drop well (156). A tire-based unit (34) is mounted in the drop well (156) so that a coil antenna (96) of the tire-based unit (34) is located adjacent to both the first and second magnetically conductive surface portions (160 and 168). The central axis of the coil antenna (96) extends in a direction parallel to the first magnetically conductive surface portion (160) and the first and second magnetically conductive surface portions (160 and 168) guide magnetic flux of the magnetic field to the coil antenna (96).

Abstract: A method is disclosed for downhole determination of the resistivity of fluids from formations surrounding an earth borehole, including the following steps: providing a formation testing logging device that includes a coil and a flow line passing axially through the coil; determining a reference quality factor of the coil; positioning the formation testing device in the borehole, and causing formation fluid to flow through the flow line; measuring the quality factor of the coil with formation fluid in the flow line; and determining the resistivity of the formation fluid in the flow line as a function of the measured quality factor and the reference quality factor.

Abstract: The present invention provides a downhole method and apparatus using a flexural mechanical resonator, for example, a tuning fork to provide real-time direct measurements and estimates of the viscosity, density and dielectric constant of formation fluid or filtrate in a hydrocarbon producing well. The present invention additionally provides a method and apparatus for monitoring cleanup from a leveling off of viscosity or density over time, measuring or estimating bubble point for formation fluid, measuring or estimating dew point for formation fluid, and determining the onset of asphaltene precipitation. The present invention also provides for intercalibration of plural pressure gauges used to determine a pressure differential downhole.

Abstract: A method is provided for measuring a pressure of a hydraulic fluid that is supplied from a hydraulic fluid control device (1) to a operation device (6). The method includes measurement of a first pressure (Pm) and a second pressure (Pa). The first pressure is the pressure of the hydraulic fluid within a first flow path (P3 to P8) connecting a pressure control unit (3) and the operation device. The second pressure is the pressure of the hydraulic fluid within a second flow path (P11, P12) connecting an accumulator (22) and the pressure control unit. Then, a stabilization time (T) is determined. The stabilization time is the time when a pressure gradient per unit time of the second pressure become to be smaller than a predetermined value. Thereafter, a pressure (Pw) of the hydraulic fluid at the operation device is determined based on the first pressure that is measured at the stabilization time or at a time immediately after the stabilization time.

Abstract: A Rotary Air-data System (RADS) periodically samples pressure data from a main rotor blade mounted pitot-scoop integrated with a high accuracy pressure sensor to compute a velocity vector that is resolvable into the aircraft's coordinate system. Mathematical techniques are employed which provide accurate computations of static pressure without a static pressure sensor. The RADS also computes the direction of the relative wind which is particularly useful when the pilot executes hover or low speed, low altitude maneuvers in restricted visibility. The availability of relative wind velocity information coupled with navigation data enhances the ability of rotary aircraft to perform accurate low altitude hover, fire control and other autopilot maneuvers.

Abstract: An airflow meter has a membrane type sensor element. The sensor element is supported on a support member so that a sensing surface of the sensor element is in parallel to the airflow direction. The airflow meter has at least one means for protecting the sensor element from dust such as foreign particles. The protecting means is provided with an obstruction member that is disposed upstream or downstream of the sensor element with respect to the airflow direction. The sensor element is hidden behind the obstruction member. The obstruction member has gradually spreading surfaces and gradually converging surfaces along the airflow direction. Alternatively, the protecting means can be provided with a deflector, a cover member, a flow guide member, an inlet or a dust collector.

Abstract: A method and a device for measuring features in a fluid such as pressure, flow rate, and temperature measurements is disclosed. The sensing device includes at least two sensing elements, all of which are mounted and/or fabricated on a chip and connected to a chip circuit, and a power supply and measuring circuit placed outside the chip and connected to the chip circuit. According to the invention the power supply and measuring circuit is controllable to feed at least two different kinds of signaling to the chip circuit. Furthermore the sensing elements are connected to each other and to the power supply and measuring circuit such that at least one of the sensing elements, controllable by the signaling from the power supply, can be individually measured. The chip is adapted to be mounted on a catheter or a guide wire.

Abstract: A device for establishing and/or monitoring a predetermined fill level in a container is provided, which also operates stably in liquids with surface waves, which includes: a mechanical oscillatory structure placed at the height of the predetermined fill level, an electromechanical transducer, which in operation excites the oscillatory structure to resonance oscillations, and a receiver- and evaluation-unit, which serves for determining from the resonance oscillation whether the predetermined fill level has been reached, or not, in which a shape of the oscillatory structure is so constructed that the resonance frequency changes only slowly with immersion depth in the case of immersion in the region of the predetermined fill level.

Abstract: Devices and methods are disclosed for sensing the level of a fluid in a reservoir. The device comprises a generator for generating symmetrical pulses of electric potential, a ground generator in communication with the above generator, means for sensing resistance, and a latch circuit in communication with the above means for sensing resistance. In a method of the invention, a first electric potential is applied to an electrode within the reservoir. The first electric potential has a predetermined value and duration. The resistance of fluid within the reservoir is measured during application of the first electric potential. A second electric potential is applied to the electrode after the measurement for a period of time substantially equivalent to the duration of the first electric potential and of a value substantially equivalent to and opposite to the predetermined value of the first electric potential.

Abstract: A solid state illuminator and display means are provided for bi-colored ported water level gauges suitable for use in high pressure steam drums or similar water/steam devices to facilitate making an accurate determination of water level in such a device. The illuminator comprises an array of bi-colored solid state light emitting diodes (LEDs), as the light source, and a precision lens to focus the light provided from the LEDs through a gauge body and onto the view screen.

Abstract: A method and a system for detecting the level of fluid in a container is provided: The level meter includes first, second and third generally parallel probes being positioned within the container. The first probe includes a first portion that is at least partially covered by an insulating material, and a second generally exposed end. The second probe is generally free of the insulating material and the third probe provides an electrical ground. An electronic unit is operable to measure electrical characteristics of the first and second probes to determine an amount of the second probe which is exposed to a fluid within the container.

Abstract: A novel sensing device having a unique structure, for measuring volume, position or mass of matter (11) comprising of a housing (12) having a removable top (13), a permanent bottom (14), an electronic oscillator board (15) having plurality of electronic components for measuring volume, position, or mass of matter. A coax type wire (16) having a first end (17) connected to said electronic oscillator board (15) and a second end (18) terminating at the bottom of receiver hole (20). A retainer (19) used to form said receiver hole (20) having a top end (21) open to said permanent bottom (14) on said housing (12) to accommodate said coax type wire (16). Said receiver hole 20 having a bottom end (22) and lower end (25) being isolated by said non-conductive material (23). Said non-conductive material (23) having an upper end (24) being attached by mounting means (26) to said permanent bottom (14) of housing (12).

Abstract: A float, including rubber material for sensing liquid levels having a chemically resistant protective covering said float having greater resistance to attach from chemicals, such as hydrocarbons, acids, and chlorinated solvents, said float may be made to include magnets, guiding devices or sensors. Also disclosed is the method for manufacturing the float of this invention including the steps of milling acrylonitrile rubber, phenolic resin, sulfur and various additives in a Banbury mill and mixing at an elevated temperature below 250°, compression molding at up to 900 psi pressure between 250° and 350° F., cooling and filling pre made protective skin container with the mixture, closing the container and heating the sealed container to bond the mixture to the container skin.

Abstract: An improved lower cost sight glass and a method for producing the same is disclosed, whereby the sight glass is made by placing a transparent component in secure contact with a metallic ring. The contact may optionally be effectuated by temporarily altering the relative dimensions of the metallic ring and the transparent component, placing the transparent component into the inner space of the metallic ring, and then reversing the altered relative dimensions of the metallic ring and the transparent component. A hermetic seal is formed between the transparent component and the metallic ring is by the application of an inorganic sealing compound.

Abstract: A humidity sensor element for a humidity sensing device includes a rigid, p doped silicon substrate, a non-porous terminal on one side of the substrate, a porous terminal on a second side of the substrate, and a layer of polyphenylsulfone between the porous terminal and the substrate. The sensor elements displays improved linear response with humidity changes and very low hysteresis.

Abstract: This invention is related to a phase-locked mechanical resonator pair that comprises at least two mechanical resonators wherein the resonance of the second mechanical resonator is phase-locked to the resonance of the first mechanical, and a micromachined vibration gyroscope that uses such phase-locked mechanical resonator pair as its resonating masses to generate differential Coriolis forces and to achieve inertial cancellation.

Abstract: A high-sensitivity and low-noise micromachined capacitive lateral accelerometer device having an input axis and a monolithic, three-axis accelerometer utilizing the device are provided. The device includes at least one electrode having a side surface normal to the input axis. A relatively large proofmass has at least one side surface normal to the input axis and extends along a width of the proofmass. The proofmass is movable against acceleration relative to the at least one electrode due to inertial force along the input axis to obtain a capacitive variation between the at least one electrode and the proofmass. The side surfaces are spaced apart to define a narrow, high-aspect ratio sensing gap which extends along substantially the entire width of the proofmass. The proofmass forms a sense capacitor with the at least one electrode.

Abstract: The invention relates to measuring devices used for the measuring of acceleration, and specifically to capacitive acceleration sensors. The capacitive acceleration sensor according to the present invention comprises a pair of electrodes composed of a movable electrode (4) and a stationary electrode (5), and, related to the pair of electrodes, an isolator protrusion having a special coating. The invention provides an improved, more durable sensor structure, which withstands wear caused by overload situations better than earlier structures.

Abstract: A semiconductor mechanical sensor having a new structure in which a S/N ratio is improved. In the central portion of a silicon substrate 1, a recess portion 2 is formed which includes a beam structure. A weight is formed at the tip of the beam, and in the bottom surface of the weight in the bottom surface of the recess portion 2 facing the same, an electrode 5 is formed. An alternating current electric power is applied between the weight portion 4 and the electrode 5 so that static electricity is created and the weight is excited by the static electricity. In an axial direction which is perpendicular to the direction of the excitation of the weight, an electrode 6 is disposed to face one surface of the weight and a wall surface of the substrate which faces the same. A change in a capacitance between the facing electrodes is electrically detected, and therefore, a change in a physical force acting in the same direction is detected.

Abstract: An inertia device is constructed by both suspension structure and micro-electroplating structure. The suspension structure may be manufactured by surface micromachining technique of sacrificial layer process or bulk micromachining technique incorporating with thin film process. One side of the suspension structure is arranged firmly to a supporting piece, so that another side of the suspension structure is in a suspension state. The suspension side of the suspension structure is made as micro-electroplating structure through the micro-electroplating process and functions as inertia mass for an inertia sensor. The size of the micro-electroplating structure may be changed through the micro-electroplating process, such that the inertia sensor may be adapted for sensing in different levels.

Abstract: An ultrasound inspection apparatus particularly adapted to examine containers (sealed or unsealed) containing a liquid or solid bulk material. The apparatus has an overall configuration of a hand held pistol with a front transducer contact surface that is positioned against a front wall of the container. An ultrasound pulse is transmitted from the apparatus to be reflected from a back wall of a container being investigated. The received echo pulse is converted to a digital waveform. The waveform is analyzed relative to temperature, travel distance of the pulse(s), and time of travel to ascertain characteristics of the liquid or other materials and to provide identification of the same.

Abstract: A high-sensitive and high accuracy vibrating type pressure sensor (1) allowing a corrosive gas pressure to be directly applied thereto, having a heat resistance, and having no room for mixing of noise into a vibrator, comprising a stainless steel pressure receiving diaphragm (4) for receiving a fluid pressure P on a rear surface side, the vibrator (12) formed on the front surface side of the pressure receiving diaphragm (4), a wall body (8) disposed so as to surround the periphery of the vibrator (12), and a permeable part (20) for light transmission for changing an internal space in which the vibrator (12) is present into a vacuum chamber (10) by closing an opening part (8a) in the wall body (8), whereby, since the diaphragm (4) is formed of the stainless steel with corrosion resistance, the sensor can also be applied to corrosive fluid, since circuit wiring is eliminated from the vibrator (12) and the vibrator is isolatedly disposed in the vacuum chamber (10), mixing of electromagnetic noise can be eliminat

Abstract: An electronic pressure-sensing device is isolated from corrosive, conductive gasses and fluids by a corrosion resistant metal diaphragm welded to a pressure port. The pressure-sensing device is attached to a support structure with a hole that provides a path from the diaphragm area to the pressure-sensing device. A fill fluid is sealed behind the diaphragm and fills the hole through the support structure to the electronic pressure-sensing device. In this design, any hostile chemical applied is completely isolated from the electronic sensor and associated adhesive seals by the metal diaphragm.

Abstract: A pressure sensor for an internal combustion engine cylinder. The sensor has a housing with a pair of ends and a bore that extends through the housing. A barrel is mounted in the bore toward one end. The barrel has a cavity. A piezoelectric body is mounted in the cavity. The piezoelectric body has a first and second electrode. The piezoelectric body generates an electrical signal that is indicative of the pressure in the cylinder. A plate is mounted adjacent the barrel. The plate retains the barrel in the housing. An electronic circuit is mounted in the bore toward the other end. The electronic circuit is electrically connected to the electrodes. The electronic circuit receives the electrical signal from the electrodes and provides a conditioned electrical signal as an output.

Abstract: A bonding pad for outputting an output of a piezoresistive element to an integrated circuit is disposed on one side of a sensor substrate, and the sensor substrate is adhered to a package at only a rear side of the bonding pad.

Abstract: A heat loss gauge for measuring gas pressure in an environment includes a resistive sensing element and a resistive compensating element. The resistive compensating element is in circuit with the sensing element and is exposed to a substantially matching environment. An electrical source is connected to the sensing element and the compensating element for applying current through the elements. The current through the sensing element is substantially greater than the current through the compensating element. Measuring circuitry is connected to the sensing element and the compensating element for determining gas pressure in the environment to which the sensing element and compensating element are exposed based on electrical response of the sensing element and the compensating element.

Abstract: A load test machine includes a base block, at least a pair of posts rising from the base block, a cross head spanning between the pair of posts, and an actuator mounted on the base block or the cross head. The actuator is able to apply a load on a test piece positioned between the cross head and the base block. The cross head is secured to each of the posts via an elastic member, and the elastic member is constructed to be changeable in its jointing position with the cross head or with each of the posts to change a resonance frequency of the test machine.

Abstract: In the method for measuring the velocity of fluid or visualizing the distribution of fluid by feeding tracer particles to the fluid, irradiating the fluid with light and observing return light from the tracer particles, tracer particles containing a flourescent substance are fed at least partially to the fluid and the fluid is irradiated with exciting light to cause the tracer particles to output flourescent emissions. A filter which does not transmit the exciting light is used to substantially selectively observe the flourecent emissions of the tracer particles. This method results in a remarkable improvement in the accuracy of flow velocity measurement or visualization of fluid distribution. Moreover, in a mixed fluid system consisting of two or more different fluids, the pattern of behavior of each fluid and the intermingled state of the fluids can be observed by using a plurality of different tracer particles.

Abstract: A vortex flow pickup serves for measuring mass flow, volume flow or flow velocity of a fluid which is flowing in a measuring tube having a tube wall, and has a temperature sensor arranged in such a way that the vortex flow pickup may also be used together with those fluids which corrode the temperature sensor. A bluff body which produces vortices, and consequently pressure fluctuations, is arranged in the measuring tube. A vortex sensor responding to these pressure fluctuations is fitted downstream of the bluff body in a bore of the tube wall of the measuring tube. The vortex sensor comprises a diaphragm which covers the bore and on which a sensor vane protruding into the fluid is fastened. The temperature sensor is fixed on the bottom of a blind hole of the sensor vane. On the side of the diaphragm lying opposite the sensor vane, a sensor element is fastened. The temperature sensor may alternatively be arranged in a longitudinal bore of the bluff body.

Abstract: An acoustic flow meter in the form of a valve key has an acoustic sensor 12 for measuring the peak sound level which occurs when the key is used to close a valve in a fluid pipeline. The peak sound level can be used to accurately calculate the flow through the valve and provide the flow information on a display unit 11. Parameters for the upstream supply pressure, pipe diameter and valve characteristics can be entered to ensure the accuracy of the flow calculations. The key therefore provides a way of determining fluid flow in a pipeline to a reasonable level of accuracy without having to install in-line flow meters.

Abstract: An object of the present invention is to provide a hydrocarbon gas flow rate adjusting method and apparatus, which suppress deterioration of an elastic foamed body with the passage of time and enables a stabilized adjustment of the flow rate for a long period by combining a fine porous film with a porous elastic foamed body. More specifically, fuel gas taken out of a tank which stores hydrocarbon fuel gas in liquid phase is controlled in its flow rate such that the upper limit of the flow rate is the maximum flow rate obtained by depressurizing the fuel gas with a flow rate restricting member as a first stage and then adjusting to an arbitrary flow rate within a range of the restricted maximum flow rate with an adjustable flow rate adjusting member.

Abstract: A load detecting device includes a plurality of load sensors which are disposed in a matrix shape and correcting means for setting at least one of the plural load sensors as a standard load sensor and for correcting level of output values of each load sensors to level of output value of the standard load sensor on the basis of the output values of each load sensors.

Abstract: An apparatus and method for testing a spindle are provided. The apparatus includes a rotational load device and a linear load device. The rotational load device is connected to the spindle via a shaft and configured to rotationally load the spindle. The linear load device is configured to apply a predetermined linear load on the shaft, so that the linear load is at least partially transmitted to the spindle. The spindle can be subjected to various linear and rotational loads to determine the effectiveness of the spindle, and the performance of the spindle can be measured.

Abstract: A semiconductor dynamic quantity sensor detects a dynamic force and a fault diagnosis through the use of a single bridge circuit. Sensor output terminals are connected to midpoints between gauge resistors to make a combination of the midpoints at which an equal electric potential is measured when no pressure is applied to a diaphragm of the sensor. Fault diagnostic output terminals are connected to wiring patterns in the same manner as the first output terminals. One of the sensor output terminals has three selectable terminals connected to different positions of the midpoint. One of the diagnostic output terminals also has three selectable terminals connected to different positions of the wiring patterns. Accordingly, an offset voltage of the sensor output and the fault diagnostic output can be adjusted appropriately when one of the selectable terminals are selected as appropriate.