Patent ID: 9741229
Date: 2017-08-22
CPC Classifications: G01D,G01M,G08B

Claim:
1. An optical sensor, comprising: a holding sleeve; a fixed ferrule fixedly mounted in said holding sleeve; a movable ferrule movably mounted in said holding sleeve, a predetermined distance existing between a first movable end of said movable ferrule and a first fixed end of said fixed ferrule in said holding sleeve; a reflection part arranged at a second movable end of said movable ferrule opposite to said first movable end, for reflecting light entering the movable ferrule and providing a reflected optical signal; and an actuation part, said actuation part being constructed to drive said movable ferrule to move so that said first movable end moves towards said first fixed end, and to adjust the predetermined distance to cause a change in attenuation of the reflected optical signal, the change in the reflected optical signal indicative of a parameter monitored by the optical sensor.