Heat-loss pressure microsensors
    2.
    发明授权

    公开(公告)号:US11747231B2

    公开(公告)日:2023-09-05

    申请号:US17905813

    申请日:2020-04-08

    IPC分类号: G01L11/00 G01L27/00 G01K7/22

    摘要: A heat-loss pressure microsensor for measuring a gas pressure is disclosed that includes a plurality of pressure gauges arranged proximate to one another on a substrate. The gauges may include a pair of gauges, each gauge including a thermistor having an electrical resistance that varies with its temperature, the thermistor's temperature being responsive to the gas pressure, a platform to receive the thermistor, and a support structure to hold the platform above the substrate. Each gauge may be configured to produce a gauge output signal related to the electrical resistance of its thermistor. The two gauges are configured with their platforms having equal nominal perimeters and different nominal surface areas, and their support structures having the same nominal geometry. A differential signal may be obtained from the two gauge output signals. The differential signal conveys information about the gas pressure and exhibits reduced sensitivity to fabrication-related dimensional variations.

    Pressure measurement system and method for operating same

    公开(公告)号:US11630016B2

    公开(公告)日:2023-04-18

    申请号:US17407580

    申请日:2021-08-20

    摘要: A measurement system for an aircraft gas turbine engine includes a probe and a heated-gas source in fluid communication with the pressure probe. The probe includes a probe body defining an internal cavity of the probe. The probe further includes a plurality of sensor inlet ports extending through the probe body and configured to receive a sensed fluid flow. The probe further includes a plurality of probe conduits. Each probe conduit of the plurality of probe conduits is coupled to a respective sensor inlet port of the plurality of sensor inlet ports and extending from the respective sensor inlet port to an exterior of the probe body. The heated-gas source is configured to supply a heated gas flow to one or both of: the plurality of sensor inlet ports via the plurality of probe conduits and an interior of the probe body outside of the plurality of probe conduits.

    Electrical machine monitor
    4.
    发明授权

    公开(公告)号:US11514732B2

    公开(公告)日:2022-11-29

    申请号:US16803382

    申请日:2020-02-27

    发明人: David Loder

    摘要: An example method includes receiving, by one or more processors and via a sensor, a signal representing operational characteristics of a device included in an aircraft; determining, by the one or more processors and based on the signal, a partial discharge intensity value; receiving, by the one or more processors and via an environmental sensor, at least one environmental measurement of the device; modifying, by the one or more processors and based on the at least one environmental measurement, the partial discharge intensity value to determine a modified partial discharge intensity value; and responsive to determining that the modified partial discharge intensity value satisfies a threshold, outputting an alert signal for the device.

    Autonomous and irreversible pressure variation detector

    公开(公告)号:US11441965B2

    公开(公告)日:2022-09-13

    申请号:US16906677

    申请日:2020-06-19

    申请人: Christian Hug

    发明人: Christian Hug

    摘要: A device for detecting a sudden pressure variation in a fluid, including a housing open at one of its ends, a wall closing the housing to create a chamber, the wall being configured such that, when the external pressure outside the chamber is substantially stable or varies slowly, the internal pressure of the chamber is close to the external pressure, and the wall having mechanical characteristics such that it breaks when subjected to a predetermined difference between the external pressure and the internal pressure.

    APPARATUS AND METHOD FOR TESTING PRESSURE CHANGE RATE OF COMPONENT IN ELECTRO-PNEUMATIC BRAKING SYSTEM OF COMMERCIAL VEHICLE

    公开(公告)号:US20220244121A1

    公开(公告)日:2022-08-04

    申请号:US17725533

    申请日:2022-04-20

    摘要: An apparatus for testing a pressure change rate of a component in an electro-pneumatic braking system of a commercial vehicle includes a pressure change rate test bench, a pneumatic loop configured to implement on-off control of air and detection on a pressure change rate of a tested component in an electro-pneumatic braking system of a commercial vehicle, a signal processing unit configured to acquire a pressure signal and a differential pressure signal and perform analog-digital conversion on the signals to provide signals recognizable by an upper controller and a lower execution component, and a control unit configured to communicate with the pneumatic loop and drive the components in the pneumatic loop to act by setting a control parameter to obtain test data of the tested component in the electro-pneumatic braking system of the commercial vehicle in the pneumatic loop.

    A DEVICE AND A METHOD FOR DETECTION OF AND WARNING AGAINST TSUNAMIS

    公开(公告)号:US20220214167A1

    公开(公告)日:2022-07-07

    申请号:US17605913

    申请日:2020-04-22

    发明人: Sigurd MELIN

    IPC分类号: G01C13/00 G01L11/00 G08B21/10

    摘要: Disclosed is a method and device suitable for detection of and warning against tsunamis. The device is located in the water at sea. The device includes a vessel, a sensor for measuring a physical quantity of the surrounding water, a control unit inside the vessel and operatively connected to the sensor, and a communication element including a transmitter for communicating with an external receiver that the predetermined condition relating to the physical quantity is fulfilled. The device further includes a ballast tank inside the vessel. The interior of the ballast tank is connected to the outside of the vessel. A pump pumps water from the ballast tank to outside the vessel. The overall density of the device exceeds the density of the surrounding water when the ballast tank is filled, and is less than the density of the surrounding water when the ballast tank is empty of water.

    Head-mounted display device and adjusting method thereof

    公开(公告)号:US11150674B2

    公开(公告)日:2021-10-19

    申请号:US16026911

    申请日:2018-07-03

    申请人: WISTRON CORP.

    IPC分类号: G05D16/20 G01L11/00 G01B11/14

    摘要: The disclosure is related to a head-mounted display device and an adjusting method thereof. The head-mounted display device is adapted to be worn on a human face and includes a main body, a contact part and at least one airbag. The contact part is disposed on the main body, and the contact part includes a frame and a nose contact portion connected to each other. The airbag is disposed on the nose contact portion of the contact part, and the airbag is inflatable in order to decrease a gap between the nose contact portion and the human face.