公开(公告)号：WO2009093727A1

公开(公告)日：2009-07-30

申请号：PCT/JP2009/051147

申请日：2009-01-20

Applicant: CANON KABUSHIKI KAISHA ,  SATO, Shuuichi ,  SOMEYA, Yuichi ,  NISHIDA, Hideyuki ,  YOKOMATSU, Takao ,  NAKAMURA, Kentaro

Inventor： SATO, Shuuichi ,  SOMEYA, Yuichi ,  NISHIDA, Hideyuki ,  YOKOMATSU, Takao ,  NAKAMURA, Kentaro

IPC: G01L1/10 ,  H01L41/08

CPC classification number: G01L1/162 ,  H01L41/1132

Abstract: In a piezoelectric vibration type force sensor according to the present invention, vibration is restricted by a friction force between a piezoelectric body and a restricting member, and hence a range of sensing forces can be expanded compared with a case in which the vibration is restricted directly from a direction that is the same as an vibration direction. A conventional structure, in which a lead wire is soldered directly for electrically connecting the piezoelectric body to an external control circuit, causes a restriction of the vibration due to a solder attached to the piezoelectric body, resulting in narrowing the sensing range. Using the piezoelectric vibration type force sensor, the range of sensing forces can be expanded by making a state in which conducting portions of the piezoelectric body and the restricting member are not fixed but contact with each other for keeping electric conductivity.

Abstract translation: 在根据本发明的压电振动型力传感器中，通过压电体和限制构件之间的摩擦力限制振动，因此与直接限制振动的情况相比，可以扩大感测力范围 从与振动方向相同的方向。 其中引线被直接焊接以将压电体电连接到外部控制电路的常规结构导致由于附着到压电体的焊料引起的振动的限制，导致感测范围变窄。 使用压电振动型力传感器，可以通过使压电体和限制构件的导电部分不固定但彼此接触以保持导电性的状态来扩大感测力的范围。