Vibration sensor

Vibration sensor

  • CN 103,459,992 A
  • Filed: 02/10/2012
  • Published: 12/18/2013
  • Est. Priority Date: 02/10/2011
  • Status: Active Grant
First Claim
Patent Images

1. a sensor comprises:

  • Housing, described housing is suitable for being fixed to parts, and described parts are positioned at will be by a system of Sensor monitoring;

    Optical fiber, described optical fiber is fixed in described housing in the primary importance fixing with respect to described housing and the second place that can move with respect to described housing, make the detecting part between described primary importance and the second place of described optical fiber can carry out by mobile expansion and the contraction produced with respect to described primary importance at described second place place of described optical fiber, the described detecting part of described optical fiber comprises Fiber Bragg Grating FBG;

    The film spring assembly, described film spring assembly is arranged in described housing, and described film spring assembly comprises;

    Membranous disc, the central portion that described membranous disc has the fixed part fixing with respect to described housing and can move with respect to described housing, described central portion is fixed with respect to described optical fiber at described second place place, make the movement of described central portion can cause described optical fiber correspondingly to be shifted at described second place place, so that the described detecting part that comprises described Fiber Bragg Grating FBG of described optical fiber expands and shrinks;

    AndWherein, the expansion of the described detecting part of described optical fiber and shrink the light wavelength that can change by described Fiber Bragg Grating FBG reflection, the light wavelength wherein reflected by described Fiber Bragg Grating FBG can be for the movement of the described central portion of measuring described membranous disc.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×