PRESSURE SENSOR DEVICE AND VOLTAGE RECEIVING ELEMENT

Japanese Patent JP2022118688

A

To provide an optical sensor device that can detect pressure in a narrow part and can be manufactured at low cost.SOLUTION: A pressure sensor device 1 has: a light emitting unit 10 that emits incident light; an optical fiber 80 that is optically connected with the light emitting unit 10; a pressure sensor 50 that is arranged at a leading end of the optical fiber 80, and when the incident light is incident thereon through the optical fiber 80, emits return light according to the pressure applied thereto; and a detection signal generating unit 60 that is optically connected with the pressure sensor 50 through the optical fiber 80, and based on the return light, outputs a detection signal according to the pressure applied to the pressure sensor 50. The pressure sensor 50 has a magnetic substance 55, a magnetic field sensor element 52 that is arranged in proximity to the magnetic substance 55, and when the incident light is incident, emits return light according to the magnetic field, and a pressure receiving element 54 that holds the magnetic substance 55 so that the distance between the magnetic field sensor element 52 and the magnetic substance 55 is changed according to the application of pressure.SELECTED DRAWING: Figure 4

MIYAMOTO MITSUNORI
KUBO TOSHIYA
AEBA TETSUYA
TSUCHIYA TOMOHARU
SOGA YOSHIHIKO

JP2021124695A

August 15, 2022

July 29, 2021

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CITIZEN FINEDEVICE CO LTD
CITIZEN WATCH CO LTD

G01L9/00

Aoki Atsushi
Shinji Mihashi
Tomohiro Nanzan
Go Miura
Power Endo

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