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.

公开(公告)号：US20240068891A1

公开(公告)日：2024-02-29

申请号：US18454194

申请日：2023-08-23

申请人： TDK CORPORATION

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

IPC分类号： G01L1/22

CPC分类号： G01L1/2287

摘要： There is provided a sensor member with a small risk of damage. A sensor member includes: a membrane; a protective film covering a part of the membrane; and an electrode portion connected to the membrane. The electrode portion 5 covers at least a part of the protective film.