公开(公告)号：US20210199518A1

公开(公告)日：2021-07-01

申请号：US16899475

申请日：2020-06-11

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chih-Che LIN ,  Chih-Yuan CHEN ,  Chung-Yuan SU ,  Chao-Ta HUANG

IPC: G01L1/18 ,  G01L1/16

Abstract: The disclosure relates to a force measurement device including central portion, fixing portion, first and second sensing portions, and first and second electromechanical elements. The first sensing portion has first natural frequency. The first sensing portion is connected to the central portion. The second sensing portion has a second natural frequency. The second sensing portion is connected to the first sensing portion and the fixing portion. The first electromechanical element is disposed on the first sensing portion to measure a first vibration amplitude. The second electromechanical element is disposed on the second sensing portion to measure a second vibration amplitude. When the central portion is subjected to a first force, the first vibration amplitude is larger than the second vibration amplitude. When the central portion is subjected to a second force, the first vibration amplitude is smaller than the second vibration amplitude.