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    SENSOR MEMBER AND PHYSICAL QUANTITY SENSOR
    1.
    发明公开
    SENSOR MEMBER AND PHYSICAL QUANTITY SENSOR 审中-公开

    公开(公告)号：US20240068897A1

    公开(公告)日：2024-02-29

    申请号：US18454170

    申请日：2023-08-23

    申请人： TDK CORPORATION

    发明人： Masanori KOBAYASHI ,  Ken UNNO ,  Tetsuya SASAHARA ,  Tetsuo HATA

    IPC分类号： G01L19/06 ,  G01L9/04 ,  G01L19/00

    CPC分类号： G01L19/0627 ,  G01L9/04 ,  G01L19/0069

    摘要： There is provided a sensor member capable of suitably preventing a problem such as the intrusion of moisture or the like through an interface between an electrode and a protective film. A sensor member includes: a protected portion provided on one surface of a metal base and including a detection portion; a protective film including a first protective film portion having a first thickness and a second protective film portion having a second thickness thicker than the first thickness and formed at an opening peripheral edge of an opening leading to the protected portion, and covering at least a part of the protected portion from above; and an electrode portion including a first electrode portion disposed in the opening and connected to the protected portion, and a second electrode portion connected to the first electrode portion at an outer peripheral edge of the first electrode portion and formed on the second protective film portion.

    STRAIN MEASURING SYSTEM
    3.
    发明公开
    STRAIN MEASURING SYSTEM 审中-公开

    公开(公告)号：US20240302226A1

    公开(公告)日：2024-09-12

    申请号：US18599247

    申请日：2024-03-08

    申请人： TDK Corporation

    发明人： Tetsuya SASAHARA ,  Ken UNNO ,  Masanori KOBAYASHI ,  Tetsuo HATA ,  Lucie OUEDRAOGO

    IPC分类号： G01L1/22 ,  G01L1/16

    CPC分类号： G01L1/2262 ,  G01L1/16 ,  G01L1/2281

    摘要： A strain measuring system includes a piezoelectric element and a resistor provided on an object. The system also includes a resistance detection circuit to detect a change in resistance of the resistor, and a piezoelectric effect detection circuit to detect a piezoelectric effect of the piezoelectric element. A strain calculation circuit detects a strain changing time while the strain of the object is changing using a detection result from the piezoelectric effect detection circuit, calculates a change in resistance of the resistor during the strain changing time, and calculates a degree of strain of the object using a calculation result of the change in resistance.