Abstract: A system for measuring pressure, temperature or both includes a diaphragm that responds to a change in temperature or pressure, and a base connected to the diaphragm that has a sapphire element. Between the diaphragm and the base is a cavity. An optical fiber that conducts light reflected off of a surface of the diaphragm is adjacent the cavity. An interrogator is used for detecting a deflection of the diaphragm based on at least two reflected light signals having similar wavelengths and coherence lengths. A quadrature phase detection unit demodulates signals received by the interrogator.

Abstract: A sensor product for detecting an analyte or condition. The sensor product having a body and a circuit integrated with the body. The circuit including an electric power source, a sensing element comprising graphene or a graphene derivative in which the sensing element is configured to undergo a change in an electrical property in the presence of an analyte or condition, and an indicator configured to display information indicating the presence of the analyte or condition when the change in an electrical property of the sensing element occurs. For instance, the indicator may display “DANGER EVACUATE” in the presence of chlorine gas, elevated temperatures, or other analytes or conditions.

Abstract: A sensing device includes a pressure sensor and a deformable cover. A fluid cavity engineered between the deformable cover and the pressure sensor changes shape and ultimately collapses as force is applied to the sensing device. The shape and collapse of the engineered cavity, along with the entire structure of deformable cover and the pressure sensor, govern the force vs. pressure behavior of the sensing device and can be tailored as desired. A first benefit includes providing tailored properties of the sensing device by varying the structure of the deformable cover. A second benefit includes that if too much force is applied, excess force—beyond that which is required to collapse the engineered cavity—does not produce excess pressure which would cause damage to the pressure sensor. As such the sensing device is protected from accidental, or intended, over loading.

Abstract: A pressure sensor apparatus for strain gauge pressure sensing includes a plurality of strain gauges including a first strain gauge and a second strain gauge. The pressure sensor apparatus also includes a diaphragm coupled between the plurality of strain gauges and an object configured to apply pressure to the diaphragm. The diaphragm has a first portion and a second portion. The first portion has a first thickness between the object and the first strain gauge. The second portion has a second thickness between the object and the second strain gauge. In an uncompressed state, the second thickness is greater than the first thickness.

Abstract: Strain gages on a robotic force/torque sensor are individually temperature compensated prior to resolving the gage outputs to estimate force and torque loads on the sensor. Thermal sensors are mounted proximate each strain gage, and the initial gate and thermal sensor outputs at a known load and temperature are obtained. The force/torque sensor then undergoes warming, and strain gage and thermal sensor outputs are again obtained. These gage and thermal sensor outputs are processed to calculate coefficients to a temperature compensation equation, such as by using a least squares algorithm. Each strain gage output is compensated using the temperature compensation equation, and the temperature-compensated outputs of the strain gages are then combined to resolve temperature-compensated force and torque values.

Abstract: A pressure sensor device of the present invention includes a first board including external connection terminals, a second board stacked on an upper surface of the first board and including a first through hole and a second through hole, a pressure sensor element including a diaphragm structure and mounted on an upper surface of the second board such that the first through hole is closed by the diaphragm structure, and a cover that is mounted on the upper surface of the second board to cover the pressure sensor element and in which a first channel for guiding a first fluid to an upper surface of the diaphragm structure is formed. A second channel is formed between the first board and the second board to lead from the second through hole to the first through hole and guide a second fluid to a lower surface of the diaphragm structure.

Abstract: An apparatus and method for generating a controlled, predictable, reproducible and variable-size distribution of particulate matter (PM), particle number (PN) and/or facsimile/simulation, derived from vaporizing and condensing a specialized liquid, utilizing a vapor delivery device; a filter capability so as to remove a significant amount of ambient PM/PN as a secondary calibration process for the identification of fine and ultra-fine particles (e.g., 0.3 micrometers and smaller) as well as a computer-controlled ability to perform a pre-determined series of calibration routines, housed in a container.

Abstract: A sensing module apparatus is provided for monitoring a vibrating machine or structure, such as a pump, which include three mounting points on the apparatus for securely mounting the apparatus to the vibrating machine or structure. The three-point mount configuration provides the sensor module with a very rigid mount connection to virtually any surface condition, including flat, curved or irregular. All six degrees of freedom (X, Y, Z, theta-X, theta-Y and theta-Z) are properly constrained. The three-point mount also provides an air barrier or gap between the sensing module and the equipment surface, allowing the sensor to be mounted to higher surface temperature devices.

Abstract: An apparatus for processing a laboratory sample contained in a laboratory sample container is presented. The apparatus comprises an optical sensing unit for sensing a transmittance at different vertical positions through the laboratory sample container and a tip sensing unit having a tip. The tip sensing unit is adapted to provide a tip sensing signal (tLDS) depending on a position of the tip relative to the sample. The apparatus also comprises a process control unit adapted to control the secure and reliable pipetting of the laboratory sample in response to both the transmittance and the tip sensing signal (tLDS) provided by the tip sensing unit.

Abstract: A pressure sensor for measuring a pressure of a fluid, the pressure sensor including: a sensor element for measuring the pressure of the fluid; a control and/or evaluation circuit for controlling and/or evaluating a measuring signal of the sensor element; a circuit carrier, the control and/or evaluation circuit being disposed on the circuit carrier; a carrier element, the circuit carrier being fastened on the carrier element; and a housing element, the carrier element together with the circuit carrier being fastened in the housing element in a form-locking and/or force-locking manner, wherein the carrier element is configured in one piece from an electrically non-conducting material.

Abstract: A material testing apparatus includes an actuator to apply a force to a load head according to electronic control signals. The load head supplies a load to a material specimen in a first dimension. A plurality of load line displacement (LLD) reference points extend radially outward from the load head; and a plurality of LLD measuring devices correspond to the plurality of LLD reference points. Each LLD measuring device is positioned to detect a position of a corresponding LLD reference point along the first dimension and is configured to transmit position signals to a controller programmed to perform a performance test on the material specimen using feedback control based on a combination of the position signals, including an average of the position signals.

Abstract: A device which measures a physical quantity of a gas flowing through a main passage is described. The device includes a flange for fixing to the main passage; a housing that protrudes toward an inside of the main passage from the flange; and a printed circuit board fixed to the housing on which a measuring element that measures the physical quantity is mounted. Wiring of the printed circuit board has a plurality of irregularities formed along one direction of a surface, and the wiring is arranged such that a formation direction of the irregularities is oriented along a protruding direction of the housing toward an inside of the main passage. The irregularities may be polishing marks formed using a cylindrical polishing wheel or rolling marks of the wiring of the printed circuit board.

Abstract: An arrangement of a fluid-carrying element directly or indirectly on a housing of a compressor, wherein the fluid-carrying element is fluidically connected to the compressor, wherein a separate detection line having a detection opening is provided and the fluid-carrying element has at least one seal for closing the detection opening, which closes the detection opening in a desired assembly position, and wherein for detecting the pressure in the detection line, at least one pressure sensor is provided.

Abstract: Gas meter and center device are provided. Gas meter includes flow rate measurer that measures a flow rate of gas in time series. Center device receives and analyzes flow rate data from gas meter, and monitors states of use of gas appliances. Gas meter detects the start of operation of gas appliances, and transmits flow rate data during predetermined periods before and after the start of operation in accordance with a request from center device. Center device monitors the states of use of gas appliances based on the received flow rate data.

Abstract: A magnetofluid pump device for IGBT heat dissipation and a test method therefor are provided. The magnetofluid pump device uses a liquid metal as a coolant, which can absorb more heat than an ordinary water-cooling device and better dissipate heat for IGBT chips. Temperature and pressure changes in an inlet pipe and an outlet pipe of a magnetofluid pump can be monitored in real time through temperature sensors and pressure sensors, and temperature changes of the IGBT chips can be observed in real time through a thermal imager. The test method for the magnetofluid pump device for IGBT heat dissipation proposed by the present invention is simple and easy to implement. A magnetic fluid can be driven to flow by energizing positive and negative electrodes in the magnetofluid pump under the action of magnetic fields, and water-cooling equipment can dissipate heat for the magnetic fluid in the magnetofluid pump.

Abstract: An integrated measuring system comprises a structural element for building constructions, having an internal cavity, hermetically closed to contain a compressible fluid, and a measuring system for measuring stresses and/or deformations on the structural element, whereby it is possible to measure pressure and temperature of the compressible fluid so as to measure a change in the compressible fluid pressure and determine a variation of the volume of the internal cavity resulting from an action imparted to the structural element.

Abstract: A micromechanical sensor device is described that includes an integrated housing seal, a micromechanical sensor assembly, and a corresponding manufacturing method. The micromechanical sensor device with an integrated housing seal is equipped with a micromechanical sensor chip that includes an upper side and a lower side, a sensor area that may be brought into contact with an environmental medium being provided on or at the upper side, and is equipped with at least one circumferential trench, open toward the upper side, that is provided in the periphery of the sensor area and that is at least partly filled with a sealing medium for sealing a corresponding area of a housing to be mounted thereon.

Abstract: A pressure transmitter is disclosed. In an embodiment a pressure transmitter includes a housing including a housing wall, a sensor element arranged inside the housing, a ceramic substrate acting as a carrier of the sensor element and of its electrical connection arranged inside the housing and a first heating element arranged inside the housing or the housing wall, wherein the pressure transmitter is configured to determine differential, relative or absolute pressure.

Abstract: The present invention discloses an integrated force sensor, characterized in comprising: a substrate, flexible through-cavities formed on the substrate, and a flexible skin covering the flexible through-cavities, wherein a lug boss is formed on the substrate; the flexible through-cavities are divided into two segments under the action of the lug boss, one end of the flexible through-cavities is connected with a pressure sensor used to measure the internal pressure of the flexible through-cavities, and the other end of the flexible through-cavities is communicated with outside air. In the invention, the force to be measured changes the gas pressure by changing the shape of an object and detects the magnitude of the force to be measured by detecting the gas pressure. Besides, the overloaded pressure can be released through the pressure release mechanism, without affecting the safety of the film of the pressure sensor or resulting in permanent damage to film.

Abstract: A system may include a pool of liquid and a control system associated with the pool of liquid and configured to, in concert with the pool of liquid, control one of more components of the system to simulate to a human in the pool of liquid performance of extravehicular activity in space.