Method for monitoring the pressure in a device for pneumatically adjusting a seat in a transportation means

    公开(公告)号:US10457180B2

    公开(公告)日:2019-10-29

    申请号:US15745386

    申请日:2016-07-05

    Abstract: The invention relates to a method for monitoring the pressure in a device for the pneumatic adjustment of a seat in a transportation means, in particular in a motor vehicle. The device comprises a plurality of cushions (101, 102, . . . , 105) which are able to be filled with air and which are connected via respective valves (201, 202, . . . , 205) to a common preliminary pressure volume (3), wherein a pressure sensor (4) is provided for measuring the pressure (p) in the preliminary pressure volume (3) and the preliminary pressure volume (3) is coupled to a compressor (6) for supplying compressed air without a non-return valve being connected therebetween. For the purpose of monitoring the pressure in a respective cushion (101, 102, . . . , 105), a predefined pressure is set in the preliminary pressure volume by way of operation of the compressor (6) and/or by way of air discharge from the preliminary pressure volume (3) via at least one leak, with the valve (201, 202, . . . , 205) between the respective cushion (101, 102, . . . , 105) and the preliminary pressure volume (3) closed, wherein the predefined pressure deviates from a target pressure (p1, p2, . . . , p5) in the respective cushion (101, 102, . . . , 105) by at most 10% of the target pressure and/or at most 50 hPa. After the setting of the predefined pressure, the valve (101, 102, . . . , 105) between the respective cushion (101, 102, . . . , 105) and the preliminary pressure volume (3) is opened and the pressure in the preliminary pressure volume (3) is measured via the pressure sensor (4). If the measured pressure (p) deviates from the target pressure (p1, p2, . . . , p5), the measured pressure (p) is set to the target pressure (p1, p2, . . . , p5) by way of operation of the compressor (6) and/or by way of air discharge from the preliminary pressure volume (3) via the at least one leak.

    Zero-strain soil pressure sensor
    262.
    发明授权

    公开(公告)号:US10451492B2

    公开(公告)日:2019-10-22

    申请号:US15771386

    申请日:2016-03-30

    Abstract: A zero-strain soil pressure sensor includes a shell provided with a hydraulic oil cavity and a cavity located below the hydraulic oil cavity, a processor, an outer elastic film arranged at the upper end of the hydraulic oil cavity, an inner elastic film arranged between the hydraulic oil cavity and the cavity, an outer strain bridge circuit connected with the outer elastic film, an inner strain bridge circuit connected with the inner elastic film, a piston communicated with the hydraulic oil cavity, and a driving mechanism connected with the piston. The outer strain bridge circuit, the inner strain bridge circuit and the driving mechanism are electrically connected with the processor. The invention has the beneficial effect that the piston is driven by the driving mechanism to control the oil pressure in the hydraulic oil cavity, external soil pressure is balanced through the oil pressure to keep the outer elastic film in an non-deforming state all the time, and only the inner elastic film is deformed, so that the soil arch effect and soil displacement are avoided, and thus the liquid pressure measured by the inner elastic film is the soil pressure, and the measurement result is more accurate.

    System and methodology for determining forces acting on components

    公开(公告)号:US10392923B2

    公开(公告)日:2019-08-27

    申请号:US15109916

    申请日:2015-01-06

    Abstract: A technique facilitates measurement of forces resulting from a variety of loads, stresses, temperatures, or other sources. In an embodiment, the system comprises a load cell constructed with channels extending into a component which may be subjected to forces. Sensors cooperate with the channels to detect changes in volume of the channels as an indicator of the forces acting on the component. In some applications, the channels enclose a liquid, and the sensors comprise pressure sensors which detect changes in pressure within the liquid due to the volumentric changes in the channels. The system also may comprise a compensation system which compensates for external influences, such as temperatures and hydrostatic pressures.

    Apparatus for sensing operation of air cushion and method therefor

    公开(公告)号:US10060810B2

    公开(公告)日:2018-08-28

    申请号:US14772056

    申请日:2014-03-13

    CPC classification number: G01L5/16 G01B11/16 G01B13/24 G01L1/00 G01L1/02

    Abstract: An apparatus for sensing the operation of an air cushion includes an air cushion with the inside provided with a plurality of patterns filled with air; a part for sensing the air pressure inside the air cushion so as to output a corresponding air pressure sensing signal; a part for sensing the temperature inside the air cushion so as to output a corresponding temperature sensing signal; a photographic part arranged in the lower part of the air cushion for photographing the plurality of patterns so as to output an image of each pattern; and a control unit for determining the air pressure inside the air cushion by measuring the force exerted on the air cushion in the Y-direction based on the temperature, air pressure and contact area, and by measuring the force exerted on the air cushion in the X-direction based on the displacement of the contact area.

    Test bench and method for testing the drive train of a wind turbine

    公开(公告)号:US09766158B2

    公开(公告)日:2017-09-19

    申请号:US14602606

    申请日:2015-01-22

    Applicant: SENVION SE

    CPC classification number: G01M13/027 F03D17/00 F05B2260/83 Y02E10/726

    Abstract: The invention relates to a test bench (1) for testing a drive train of a wind turbine, comprising a drive device (40) for introducing test power into the drive train, which can be detachably connected to a drive train to be tested. The invention further relates to a method for testing a drive train of a wind turbine by way of a test bench (1), and to a drive train of a wind turbine. The test bench (1) according to the invention is characterized in that the drive device (40) for testing a drive train is or will be fitted and mounted on or to the drive train so as to be removable, wherein most of the weight of the drive device (40) is borne by the drive train when the drive device (40) is fitted or mounted.

    Pressure sensitive film and manufacturing method thereof

    公开(公告)号:US09759619B2

    公开(公告)日:2017-09-12

    申请号:US15085387

    申请日:2016-03-30

    Inventor: Xian Hao Yu Liu

    Abstract: The present disclosure relates to the display technical field, more particularly, to a pressure sensitive film and a manufacturing method thereof. The pressure sensitive film comprises a substrate, a color displaying layer and a color forming layer laminated sequentially; the other surface of the substrate opposite to the surface adjoining the color displaying layer is for bearing pressure; the color forming layer comprises at least one color forming unit, each of which comprises at least two color sacs, and the at least two color sacs have pressure-bearing thresholds different from each other, and operate when the pressure borne reaches their pressure-bearing thresholds; the color displaying layer displays corresponding colors according to the operation conditions of the color sacs, and each color corresponds to a set pressure value. The pressure sensitive film provided by the present disclosure determines a pressure range of the device according to the different colors, realizing effective monitoring of the device pressure; and determining the flatness of the device according to the evenness of the colors of tested regions, thus combining the pressure test and flatness test, so as to make the routine device pressure monitoring more convenient.

    User interface system and method
    270.
    发明授权

    公开(公告)号:US09619030B2

    公开(公告)日:2017-04-11

    申请号:US14575826

    申请日:2014-12-18

    Abstract: One embodiment of the user interface system comprises: A tactile layer defining a tactile surface touchable by a user and plurality of deformable regions operable between a retracted state, wherein the deformable regions are flush with an undeformable region of the tactile layer; and an expanded state, wherein the deformable regions are proud of the undeformable region. A substrate joined to the undeformable region and defining a fluid port per deformable region and a fluid channel. A displacement device displacing the fluid through the fluid channel and the fluid ports to transition the deformable regions from the retracted state to the expanded state. A first and a second pressure sensor detecting changes in fluid pressure within the fluid due to a force applied to a particular deformable region. A processor determining the particular deformable region to be location of the input force based upon the detected fluid pressure changes.

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