PRESSURE SENSOR DEVICE WITH ORGANIC ELECTROCHEMICAL TRANSISTORS

    公开(公告)号:US20240049483A1

    公开(公告)日:2024-02-08

    申请号:US18042197

    申请日:2021-08-25

    CPC classification number: H10K10/471 G01L1/005

    Abstract: A low power-consumption iontronic pressure sensor is disclosed that is based on OECT where an ionic hydrogel is used as solid gating medium for pressure sensing transistor elements formed thereon. The pressure sensor includes a substrate containing one or more pressure sensing transistor elements with each transistor element including a source electrode, a drain electrode, and a channel formed from a material comprising an electrically conducting polymer. A microstructured solid gel electrolyte having a plurality of microstructures formed thereon serves as the gating medium and is disposed atop the channel. A gate electrode is disposed on the microstructured solid gel electrolyte. The resultant iontronic pressure sensor may be operated at voltages less than 1 V, with a power-consumption between ˜101-103 μW, while maintaining a tunable sensitivity between 1˜10 kPa−1.

    SYSTEM AND METHOD USING A HAND-MOUNTED FORCE SENSOR TO VERIFY INSTALLATION OF CONNECTOR-POSITION-ASSURANCE ENABLED ELECTRICAL CONNECTOR

    公开(公告)号:US20230246386A1

    公开(公告)日:2023-08-03

    申请号:US18133079

    申请日:2023-04-11

    CPC classification number: H01R13/641 G01L1/005 H01R13/639 G06F3/016

    Abstract: The present invention is a system and method using a hand-mounted force sensor to verify installation of a CPA-enabled electrical connector. The system has at least one CPA-enabled electrical connector with a locking button; at least one hand-mounted force sensor; an interface board; a transmission channel; a system processor; a non-transitory computer readable memory element; a display; and an input. The hand-mounted force sensors have an electrical output that is proportional to the force. The method is accomplished with the steps of mounting at least one force sensor so that it will record the force exerted when depressing a locking button of a CPA-enabled electrical connector; depressing the locking button; measuring the force; recording the force; comparing the force to a pre-determined threshold; passing the CPA-enabled electrical connector if the force was less than the pre-determined threshold and otherwise failing it.

    INSTRUMENTED TOOLS FOR MONITORING INTERACTION DYNAMICS DURING CONTACT TASK

    公开(公告)号:US20180243881A1

    公开(公告)日:2018-08-30

    申请号:US15756423

    申请日:2016-09-01

    CPC classification number: B24B49/16 B24B27/027 G01L1/005 G01L3/04

    Abstract: An instrumented tool for surface finishing of a work-piece, the instrumented tool comprising: a tool configured to be spun and brought into contact with the work-piece while spinning; a spindle configured to provide a spinning torque to spin the tool; a flexible coupler provided between the spindle and the tool to transmit only spinning torque of the spindle to the tool; a rigid connection provided between the spindle and the tool in parallel to the flexible coupler; and a multi-axis force/torque/strain/pressure sensor attached to at least the rigid connection; wherein the rigid connection and the multi-axis force/torque sensor are decoupled from spinning of the spindle and the tool, and wherein the multi-axis force/torque sensor is configured to measure at least one of: contact force and torque between the tool and the work-piece.

    TENSIOMETER APPARATUS AND METHOD
    117.
    发明申请

    公开(公告)号:US20180080861A1

    公开(公告)日:2018-03-22

    申请号:US15724315

    申请日:2017-10-04

    Applicant: Jesse Lafian

    Inventor: Jesse Lafian

    Abstract: An elongated apparatus that measures soil water tension is disclosed, having a hydrogel chamber for receiving a plurality of macro-sized hydrogel particles through its open side and a sealed inner wall, the hydrogel held in the hydrogel chamber by a durable, hydrophilic, and porous window secured to the open side of the hydrogel chamber. The window, when the apparatus is received in soil, transmits moisture between the soil and the hydrogel chamber, causing variable pressure within the hydrogel chamber that can be converted to a measurement of soil water tension on the opposite side of the window. This pressure produces various mechanical effects, measurable by various types of sensors within the elongated probe. A method for measuring soil water tension at multiple depths within a soil profile is also disclosed.

    Tensile stress measurement device with attachment plates and related methods

    公开(公告)号:US09726587B2

    公开(公告)日:2017-08-08

    申请号:US14610068

    申请日:2015-01-30

    CPC classification number: G01N3/08 G01L1/005 G01N3/066 H01L23/3107

    Abstract: A tensile stress measurement device is to be attached to an object to be measured. The tensile stress measurement device may include an IC having a semiconductor substrate and tensile stress detection circuitry, the semiconductor substrate having opposing first and second attachment areas. The tensile stress measurement device may include a first attachment plate coupled to the first attachment area and extending outwardly to be attached to the object to be measured, and a second attachment plate coupled to the second attachment area and extending outwardly to be attached to the object to be measured. The tensile stress detection circuitry may be configured to detect a tensile stress imparted on the first and second attachment plates when attached to the object to be measured.

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