STRAIN SENSOR, MONITORING SYSTEM AND METHOD OF MANUFACTURING STRAIN SENSOR

• Main Authors: ITO ATSUSHI, TOYOSHIMA KEISEI, MUROYA ITARU, JINNO HIROYUKI
• Format: Patent
• Language: English; Japanese
• Published: 27.07.2017
• Subjects: MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

PROBLEM TO BE SOLVED: To provide a strain sensor capable of being inexpensively prepared with a simple structure and easily visually recognizing deformation of an object.SOLUTION: A strain sensor which is installed at an object and detects deformation of the object includes: a frame member which is installed at an object while including a first frame and a second frame connected to the first frame in a dividable manner; a sensor member having a first fixing part fixed to the first frame, a second fixing part fixed to the second frame, and a fracture part which is fractured when stress is applied by deformation of the object arranged between the first fixing part and the second fixing part; and a sensor film whose appearance changes when installed on the surface of the sensor member and the fracture part is fractured.SELECTED DRAWING: Figure 1 【課題】簡便な構造で安価に作成でき、対象物の変形を容易に視認することができる歪みセンサを提供する。【解決手段】対象物に設置され対象物の変形を検出する歪みセンサは、第１フレーム及び第１フレームと分割可能に接続される第２フレームを含み対象物に設置されるフレーム部材と、第１フレームに固定される第１固定部と、第２フレームに固定される第２固定部と、第１固定部と第２固定部との間に配置され対象物の変形により応力が加わると破断する破断部とを有するセンサ部材と、センサ部材の表面に設けられ破断部が破断したときに外観が変化するセンサ膜と、を備える。【選択図】図１