Abstract: A valve system for a tire parameter monitoring system includes a valve body having an elastomeric material and a connection element. The connection element includes a first engaging device with which the connection element is detachably connected to an electronic module of the tire parameter monitoring system, a second engaging device with which the connection element is detachably connected to the valve body, and a mounting section adapted to be detachably connected to a hole in a wheel rim. A tire parameter monitoring system and a method for mounting a tire parameter monitoring system to a wheel rim of a vehicle are also provided.

Abstract: A flow velocity sensor includes a substrate, a resistor, and a signal processing section. The substrate has first and second substrate surfaces outwardly opposite to each other. The first substrate surface is exposed to a fluid. The resistor is mounted on the second substrate surface. The resistor has a heat generating portion facing the second substrate surface. The signal processing section is configured to receive a signal from the resister. The signal from the resistor represents heat dissipation of the resistor. A fluid velocity is detected based on the signal from the resistor.

Abstract: A wearable device includes a case and a far infrared temperature sensing device. The case has a first opening. The far infrared temperature sensing device is disposed inside the case of the wearable device. The far infrared temperature sensing device includes an assembly structure, a sensor chip, a filter structure, and a metal shielding structure. The assembly structure has an accommodating space and a top opening. The sensor chip is disposed in the accommodating space of the assembly structure. The filter structure is disposed above the sensor chip. The metal shielding structure is disposed above the sensor chip, and has a second opening to expose the filter structure. The first and second openings are communicated to cooperatively define a through hole.

Abstract: A pressure cell for sum frequency generation spectroscopy includes: a metal pressure chamber; a heating stage that heats a liquid sample; an ultrasonic stage that emulsifies the liquid sample; a chamber pump that pressurizes an interior of the metal pressure chamber; and a controller that controls the chamber pump, the ultrasonic stage, and the heating stage to control a pressure of the interior of the metal pressure chamber, an emulsification of the liquid sample, and a temperature of the liquid sample, respectively. The metal pressure chamber includes: a liquid sample holder that retains the liquid sample; a removable lid that seals against a base; a window in the removable lid; a sample inlet that flows the liquid sample from an exterior of the metal pressure chamber to the liquid sample holder at a predetermined flow rate; and a sample outlet.

Abstract: In some embodiments, a sensor is provided. The sensor includes a microelectromechanical systems (MEMS) substrate disposed over an integrated chip (IC), where the IC defines a lower portion of a first cavity and a lower portion of a second cavity, and where the first cavity has a first operating pressure different than an operating pressure of the second cavity. A cap substrate is disposed over the MEMS substrate, where a first pair of sidewalls of the cap substrate partially define an upper portion of the first cavity, and a second pair of sidewalls of the cap substrate partially define an upper portion of the second cavity. A sensor area comprising a movable portion of the MEMS substrate and a dummy area comprising a fixed portion of the MEMS substrate are both disposed in the first cavity. A pressure enhancement structure is disposed in the dummy area.

Abstract: Apparatus and associated methods relate to sensing pressure and mitigating the error introduced by the thermoelectric effect. A pressure sensing device includes a pressure sensor, a temperature sensor, and an error correction device. The pressure sensor produces a voltage output proportional to a sensed pressure. The temperature sensor measures a first temperature at a first location and a second temperature at a second location to produce a temperature difference signal. The error correction device modifies the pressure output proportionally to the temperature difference signal to produce a temperature adjusted pressure output which compensates for error introduced from the temperature difference.

Abstract: There is provided a computerized system comprising a processing unit and associated memory configured to obtain a three-dimensional dataset informative of at least part of a tread of a tire, and determine, using the three-dimensional dataset, data informative of tread depth of the tire.

Abstract: The PCB wind tunnel test device includes: a flow-stabilizing structure, which includes: a box used to provide flow channels for air entering the flow-stabilizing structure; flow-stabilizing plates, which are inserted into the cavities of the box in a layered manner; a wind source, arranged at an air inlet of the flow-stabilizing structure; a test device, arranged at the outlet of the flow-stabilizing structure. When the flow-stabilizing structure receives the wind energy provided by the wind source, the state of the air flow is adjusted by flow stabilization, so that the test device tests the air passing through the flow-stabilizing structure. The present invention solves the problem that conventional wind tunnels cannot test at low air volumes and enables PCB testing at different ambient temperatures.

Abstract: A device for measuring pressure includes a curved microbeam having opposing ends, a length extending between the pair of opposing ends, and a plurality of resonant frequencies, an actuating electrode extending along the length of the curved microbeam and spaced from the curved microbeam, an AC power source in communication with one of the opposing ends and the actuating electrode to deliver an AC signal at a first symmetric resonant frequency and a second symmetric resonant frequency selected from the plurality of resonant frequencies to the curved microbeam, a DC power source in communication with the opposing ends to pass an electrothermal voltage along a length of the curved microbeam, and a frequency monitoring device to monitor changes in the first symmetric resonant frequency and the second symmetric resonant frequency caused by an ambient pressure surrounding the curved microbeam.

Abstract: A reconfigurable pressure transducer assembly having an input tube filter assembly is provided. The resonant frequency and dampening characteristics associate with the pressure transducer assembly may be configured by the input tube filter assembly. The input tube filter assembly includes one or more inserts disposed in an input tube channel, the one or more inserts including one or more bores of selectable dimensions and extending therethrough from a first end to a second end. The one or more inserts define an effective input tube bore, and the input tube filter assembly is tunable by selection of the selectable dimensions of the one or more inserts.

Abstract: A measurement device for measuring the pressure of a wheel (3) of a vehicle, the measurement device comprising a stationary portion (5) and a movable portion (14) for being driven in rotation by the wheel, the stationary portion including a first printed circuit (7) having at least one first track formed thereon defining a first winding, the movable portion including a second printed circuit (16) having at least one second track formed thereon defining a second winding, the second printed circuit being arranged to be connected to a pressure sensor (15), the first winding and the second winding being coupled together to form a wireless communication channel, the measurement device being arranged in such a manner that the pressure sensor is electrically powered by the stationary portion via the wireless communication channel, and in such a manner that uplink data comprising pressure measurement data is transmitted to the stationary portion (5) by the movable portion (14) via the wireless communication channel.

Abstract: A method for detecting a thermal anomaly during running of a tire-wheel assembly (3) of a vehicle (1) equipped with a mounting wheel (5) on which a pneumatic tire is mounted comprises the steps of measuring the internal pressure (P) and temperature (T) of the tire-wheel assembly (3) using a sensor (9) attached to the mounting wheel (5), calculating a monitoring ratio which is a function of the measured pressure and of the measured temperature, repeating the preceding steps and tracking the evolution in the value of the monitoring ratio in order to determine a thermal anomaly.

Abstract: The disclosed technology relates to a field serviceable pressure scanner suitable for high-pressure sensing applications and replacement of large pressure transmitter panels. The pressure scanner includes a housing having a mounting plate comprising a plurality of through-hole bores extending from a front to back side for mating with corresponding transducer ports of the pressure sensors, and a plurality of input ports disposed on the front side of the mounting plate and in communication with the corresponding plurality of through-hole bores. The pressure scanner assembly includes two or more field-replaceable (swappable) pressure sensors seal mounted to the back side of the mounting plate, each pressure sensor comprising one or more sensor ports, each of the one or more sensor port in communication with corresponding through-hole bores in the mounting plate, and a multi-channel data acquisition system configured to receive pressure signals from the two or more field-replaceable pressure sensors.

Abstract: A hand-held device for obtaining a three-dimensional topological surface profile of a tire, the device comprising: a base comprising an aperture; a light source arranged in use to generate an elongate pattern of light, and to project said pattern through the aperture onto a rolling surface of the tire; a detector arranged to image a region of the rolling surface of the tire; a plurality of pairs of guide wheels mounted on respective axles mounted on the base, wherein the guide wheels on adjacent axles are linked by gears; and a rotary encoder arranged to generate a signal corresponding to rotation of an axle.

Abstract: The invention relates to a tire pressure sensor that includes a pressure transducer, a transmitter, and a housing carrying the pressure transducer and the transmitter, adapted to be mounted to an air inlet end of a tire valve; wherein the housing has a sleeve part which has an internal thread at the end for screwing the sleeve part onto the tire valve. The tire pressure sensor according to the invention is characterized in that the housing further has a receiving part in or on which the pressure sensor and the transmitter are arranged and which, in the mounted state, is connected to the sleeve part so as to be rotatable relative to the sleeve part.

Abstract: An inflation manifold connected to dual pneumatic tires by air hoses provides a central location for tire inflation and location of pressure sensors. A hose block connected to dual pneumatic tires by air hoses provides a central location for location of pressure sensors. The pressure sensors may be TPMS sensors or a combination of TPMS sensor and pressure gauge.

Abstract: A piezoelectric sensor includes a substrate, a meta-membrane adhered to the substrate, and a piezoelectric element adhered to the meta-membrane. The substrate includes a support frame which laterally surrounds and partly defines a recess and a cover film which overlies and partly defines the recess. The support frame supports the cover film along an entire periphery of the cover film. The meta-membrane is adhered to the cover film of the substrate. In accordance with one embodiment, the meta-membrane has an auxetic bi-axial kirigami honeycomb structure. In accordance with another embodiment, the meta-membrane has an auxetic hexagonal honeycomb structure. The meta-membrane is adhered to the substrate and to the piezoelectric element using elastic glue. In one proposed implementation, the substrate and meta-membrane are made of polycarbonate and the piezoelectric element comprises a piezoelectric substrate made of polyvinylidene fluoride.

Abstract: A method to reduce bag rupture in a spray dispensed from a nozzle involves detecting one or more bags rupturing from an initial spray pattern of the spray dispensed from the nozzle, the one or more bags comprising a thin membraned semi-spherical protrusion extending from the spray, where the initial spray pattern is a region of the spray initially exiting the nozzle that forms a continuous sheet-like portion. The spray includes an agricultural spray including water, at least one polymer, and at least one perforation-aid type adjuvant. The agricultural spray exhibits fewer fine droplets exhibiting a diameter less than about 150 ?m formed via the bag rupture approach to droplet formation.

Abstract: Methods, apparatuses, systems, and computer program products for configuring a tire monitoring system are disclosed. In a particular embodiment, configuring a tire monitoring system includes determining a model identifier for a tire; identifying, in a database, one or more stiffness coefficients corresponding to the model identifier of the tire; and transmitting the one or more stiffness coefficients to a component of the tire monitoring system.

Abstract: A testing system for testing a missile component having a sense axis includes a centrifuge, a support arm, an orientation assembly, and a controller. The centrifuge rotates the orientation assembly about a vertical axis in a substantially horizontal plane. The orientation assembly includes a first motor, a first gimbal, and a gimballed support. The first motor has a first rotatable shaft defining a first gimbal axis. The first gimbal is coupled with the first rotatable shaft to rotate about the first gimbal axis while the centrifuge rotates the orientation assembly about the vertical axis such that missile component is simultaneously rotated about both the vertical axis and the first gimbal axis to simulate a missile launch of the missile component. The gimballed support is coupled with the first gimbal for supporting the missile component such that the sense axis of the missile component is not parallel to the substantially horizontal plane.