Abstract: A microelectromechanical device includes: a body accommodating a microelectromechanical structure; and a cap bonded to the body and electrically coupled to the microelectromechanical structure through conductive bonding regions. The cap including a selection module, which has first selection terminals coupled to the microelectromechanical structure, second selection terminals, and at least one control terminal, and which can be controlled through the control terminal to couple the second selection terminals to respective first selection terminals according, selectively, to one of a plurality of coupling configurations corresponding to respective operating conditions.

Abstract: A multifunctional prosthetic heart valve tester having a circuit of fluid channels, wherein the circuit has a main loop of fluid channel capable of providing a first flow path for a testing fluid. There can be a first branch-off point on the main loop having a first branch channel branching off and fluidly connecting the main loop to a three-way connection. There is a second branch-off point on the main loop having a second branch channel branching off and fluidly connecting the main loop to the three-way connection. A third branch-off point is provided on the main loop having a third branch channel branching off and fluidly connecting the main loop to the three-way connection. There is linear motor and a steady-flow pump disposed on the circuit. Wherein selective shut off of certain channels and selective on/off of the linear motor/steady flow pump allows the device to test the prosthetic valve in the following modes: the steady forward flow mode, steady backward flow mode, pulsatile mode, and hybrid mode.

Abstract: A disclosed mass flow meter/controller includes: a flow tube to direct a fluid from an inlet of the flow tube to an outlet of the flow tube; an actuator to cause a vibration in the flow tube; a light source to emit light; at least one beam splitter to split the light emitted by the light source into a first light beam and a second light beam; a first optical sensor to output first measurements of a first position of a first location on the flow tube based on detecting the first light beam; a second optical sensor to output second measurements of a second position of a second location on the flow tube based on detecting the second light beam; and control circuitry to determine a mass flow rate and/or a density of the fluid in the flow tube based on the first and second measurements.

Abstract: According to one aspect of the present disclosure, a device and technique for impact detection includes a housing enclosing a mass member where the housing is configured to enable movement of the mass member from a first position to a second position within the housing in response to receipt by the housing of an acceleration event. The impact indicator also includes switch circuitry and a passive radio-frequency identification (RFID) module coupled to the switch circuitry. Responsive to movement of the mass member from the first position to the second position, the mass member causes a change in the switch circuitry where the change in the switch circuitry causes a change in a value output by the RFID module when activated.

Abstract: A sensor system for sensing pressure of a first fluid (e.g. a liquid and/or gas) comprises an optical sensing fiber that is configured for sensing pressure, and at least one sensor housing embedding the optical sensing fiber. The sensor housing is filled with a second fluid. The sensor housing comprises a non-hermetic pressure transfer medium comprised in the sensor system and positioned in the sensor housing such that a pressure of the first fluid can be transferred via the pressure transfer medium onto the second fluid towards the optical sensing fiber for determining based thereon a pressure of the first fluid.

Abstract: A manufacturing method that includes fabricating a component using an additive manufacturing process, and fabricating a coupon using the additive manufacturing process. The coupon includes a main portion and a grip portion. Fabrication of the coupon includes fabricating the main portion concurrently with the fabrication of the component, fabricating the grip portion dissociatedly from the fabrication of the component, and coupling a first end of the main portion with the grip portion to form the coupon.

Abstract: Techniques for implementing and operating a system that includes a pipe segment, which has tubing that defines a bore and a fluid conduit implemented in an annulus of the tubing, and a test head. The test head includes a shell, which defines an annulus cavity, and an inflatable bladder implemented in the annulus cavity, in which the system maintains the inflatable securing bladder in a less inflated state while pipe segment tubing is not present in the annulus cavity and increases inflation of the inflatable bladder to a more inflated state when the tubing is present in the annulus cavity to facilitate securing and sealing an open end of the pipe segment in the test head to enable integrity of the tubing to be tested at least in part by flowing a test fluid into the annulus of the tubing via a testing port on the shell.

Abstract: A controller for a MEMS gyroscope includes a first portion for generating a drive signal in response to an output from drive capacitors of the MEMS gyroscope, wherein the output signal has a resonant frequency and a phase, a second portion for determining a sampling signal in response to the output, wherein the sampling signal has a frequency that is a multiple of the resonant frequency, and has the phase, a multiplexer for outputting a multiplexed data comprising first data signals from first capacitors and second capacitors of the MEMS gyroscope multiplexed in response to the sampling signal, and a processing portion for reducing the resonant frequency from the multiplexed data.

Abstract: A method for determining a tread depth of a tread of a tire during operation of a vehicle comprising the tire, a controller for a vehicle for determining a tread depth of a tread of a tire of the vehicle, and a system for a vehicle, comprising such a controller and at least one electronic wheel unit, wherein there is provision to determine the tread depth based on a determined instantaneous dynamic wheel radius of a wheel, comprising the tire, of the vehicle and a determined instantaneous dynamic inside radius of the tire are disclosed. To improve the accuracy of determination of the tread depth a correction variable predetermined for the type of tire is taken into consideration, which correction variable characterizes the relationship between a change in the tread depth, and a change resulting therefrom in the difference between the dynamic wheel radius and the dynamic inside radius.

Abstract: A system for collecting data associated with one or more sub-surface characteristics of a material is provided. The system may include a plurality of sensor nodes configured to collect data regarding the one or more sub-surface material characteristics and transmit the collected data to a data gateway. The data gateway may be configured to receive the collected data from the plurality of sensor nodes and store the collected data in memory. The system may also include a controller configured to receive the collected data from the data gateway via a network. The controller may be further configured to display data associated with the one or more sub-surface material characteristics.

Abstract: A fluid controller is provided having a flow path through which a fluid can flow, a closed space separated from the flow path by an isolation member, and a leak port capable of communicating the closed space with an external part. An anomaly detection device for detecting an anomaly has a pressure sensor detachably fixed to the leak port, a pressure sensor for detecting the pressure in the closed space, a processing module for executing a predetermined information processing, and an detachable mechanism for blocking the leak port from the external part in the state of being fixed. The processing module determines an anomaly of the fluid controller by comparing a detection value detected by the pressure sensor to a predetermined threshold, and transmits a discrimination result of the anomaly of the fluid controller to a server.

Abstract: A fluid sealing device and a pressure detector calibration device are provided to enable further reducing of errors between a sealing pressure and a set pressure in a fluid flow path.

Abstract: A heating assembly includes a base plate. The heating assembly also includes a heating component coupled to the base plate configured to heat an enclosure of the heating assembly and a fan assembly coupled to the base plate configured to circulate the heated air within the enclosure of the heating assembly.

Abstract: A plug monitoring device configured to monitor a plug to be received by an aperture of a pipe is provided. The plug monitoring device may include: a sensor having an output, wherein the sensor is configured to produce at the output a first signal when a plug is tightly installed in the aperture and a second signal at the output when the plug is not tightly installed in the aperture; and circuitry, comprising a transmitter, coupled to the output of the sensor, wherein the circuitry is configured to transmit a signal comprising status information selectively based on a signal at the output of the sensor.

Abstract: A method for distinguishing a test gas escaping from a leak in a test object (21) from an interfering gas in the environment of the test object (21) during sniffing leak detection, having the steps: suctioning gas from the environment of the test object (21) in the region of the outer surface of the test object by means of a sniffing tip, which has a suction opening (14), which is connected, for gas conduction, to a sensor (18), which is designed to determine the test gas partial pressure of the test gas in the suctioned gas flow; varying, with periodic repetition, the flow intensity of the suctioned gas flow; setting a total pressure of the suctioned gas at the sensor (18) of at least 80 percent of the total pressure of the gas in the atmosphere (23) surrounding the test object (21); avoiding fluctuations of the total pressure of the suctioned gas at the sensor (18) of more than 10 percent; measuring the test gas partial pressure of test gas contained in the suctioned gas flow by means of the sensor (18); in

Abstract: The invention relates to inspection and measuring technology for use in the calibration, verification and routine monitoring of the metrological characteristics of volume flow and mass flow meters and calibration rigs, primarily for petroleum and petroleum products. The special feature of the present method for monitoring the metrological characteristics of a flowmeter using a bidirectional prover is that the portion of the prover situated at the end of the path of travel of a ball and acting as an accelerator during the opposite movement of the ball is used on said path as an addition to the calibrated portion. The special feature of a bidirectional prover for implementing the present method is the installation of one or more detectors in a closed cross-section of the portion of the prover situated at the end of the travel path.

Abstract: A system for preparing a test sample includes a vial holder, a needle trap connected to the vial holder, and a sample preparation station. The vial holder includes a vial chamber configured to hold a vial, a purge gas needle, and a needle trap heater. The needle trap includes a needle with the needle trap heater surrounding a distal end portion of the needle. A packing bed is disposed in the needle at the distal end portion. The sample preparation station includes a housing and a vial heater assembly including a vial heater and defining a cavity. The vial holder is configured to be received in the cavity in an installed position with the vial heater surrounding at least a portion of the vial.

Abstract: A high performance liquid chromatography method used for dexrazoxane-related substances is provided, and in the method, a low-density bonding reversed-phase C18 chromatographic column resistant to pure water is employed; a gradient elution is carried out with mobile phase A and mobile phase B as eluents, the mobile phase A being a buffer, and the mobile phase B being an organic solvent; the volume percent of mobile phase A in eluents in a first stage of the gradient elution is not lower than 90%, and the duration of the first stage of the gradient elution ranges from 15˜30 minutes. By means of the analytical method, dexrazoxane is effectively separated from main impurities, and the qualities of the active pharmaceutical ingredients of dexrazoxane and the preparations thereof could be better controlled.

Abstract: A sensor includes a planar T-resonator and an oscillator. The planar T-resonator can be a branched T-resonator with at least two symmetrical branches coupled to a stub. The oscillator has an input coupled to the planar T-resonator and an output. The oscillator has a negative resistance within a predetermined frequency range. The oscillator can be configured so that it has an input phase approximately equal to a phase of the planar T-resonator over a majority of the predetermined frequency range.

Abstract: An overpressure indicator is defined by a housing sized and configured for attachment within a compartment interior, such as an aircraft nacelle. A pressure sensing element disposed within the housing is coupled to an indicator element and is configured to detect a pressure differential between the interior and exterior of the compartment. The indicator element is caused to move in response to a predetermined change in pressure exceeding a threshold pressure differential. The indicator element includes a distal end that is moved to a position exterior of the housing and the compartment, providing a visual indication of an overpressure condition. A reset feature provided on the indicator can only be accessed by first opening the compartment in which the indicator has been mounted. A spring can be provided to assist in the triggering of the indicator member after the threshold pressure differential has been detected.