OPTICALLY INTEGRATED MULTIPLE POINT MEASUREMENT DEVICE

摘要

PROBLEM TO BE SOLVED: To measure the physical quantity at multiple points by means of multiple sensors with a simple system structure. SOLUTION: To the incident side end part of a polymer sheet sensor 10 having a phase modulator PM and voltage measurement cells S1-S6, one end of a light introducing optical fiber 18A is optically connected, while a laser diode 40 is optically connected to the other end of the light introducing optical fiber 18A. To the emission side end part of the polymer sheet sensor 10, one end of a light emitting optical fiber 18B is optically connected, while an optical detector 44 made of a photodiode is optically connected to the other end of the light emitting optical fiber 18B. The optical detector 44 is connected to a microcomputer 48 via an analog-digital converter 46. The microcomputer 48 is connected to the laser diode 40 via a driver 50.