Title:
PRESSURE SENSOR DEVICE AND PRESSURE RECEPTION ELEMENT
Document Type and Number:
WIPO Patent Application WO/2023/007870
Kind Code:
A1
Abstract:
This pressure sensor device comprises a light emission unit for emitting incident light, an optical fiber that is optically connected to the light emission unit, a pressure sensor that is disposed at the distal end of the optical fiber and emits return light corresponding to applied pressure when the incident light enters from the optical fiber, and a detection signal generation unit that is optically connected to the pressure sensor via the optical fiber and outputs a detection signal corresponding to the pressure applied to the pressure sensor on the basis of the return light. The pressure sensor comprises a magnetic body, a magnetic sensor element that is disposed near the magnetic body and emits return light corresponding to a magnetic field when the incident light enters, and a pressure reception element 54 that holds the magnetic body such that the distance between the magnetic sensor element and magnetic body changes according to the application of pressure.
More Like This:
| JPS56141531 | PRESSURE TRANSDUCER |
| WO/2014/143150 | RESPONSIVE DEVICE WITH SENSORS |
| JP3080124 | DOUBLE PIN SENSOR USING TENSILE FILM |
Inventors:
MIYAMOTO MITSUNORI (JP)
KUBO TOSHIYA (JP)
AIBA TETSUYA (JP)
TSUCHIYA TOMOHARU (JP)
SOGA YOSHIHIKO (JP)
KUBO TOSHIYA (JP)
AIBA TETSUYA (JP)
TSUCHIYA TOMOHARU (JP)
SOGA YOSHIHIKO (JP)
Application Number:
PCT/JP2022/016839
Publication Date:
February 02, 2023
Filing Date:
March 31, 2022
Export Citation:
Assignee:
CITIZEN FINEDEVICE CO LTD (JP)
CITIZEN WATCH CO LTD (JP)
CITIZEN WATCH CO LTD (JP)
International Classes:
G01L9/00; G01L9/14; G01L11/02
Foreign References:
| JPH0622906U | 1994-03-25 | |||
| JPS5646847U | 1981-04-25 | |||
| JPH0792047A | 1995-04-07 | |||
| JPH05501309A | 1993-03-11 | |||
| JPH05272919A | 1993-10-22 | |||
| US20050029436A1 | 2005-02-10 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
Download PDF: