TW200720633A - Method and device for determining vibration frequency - Google Patents

Method and device for determining vibration frequency

Info

Publication number
TW200720633A
TW200720633A TW094141940A TW94141940A TW200720633A TW 200720633 A TW200720633 A TW 200720633A TW 094141940 A TW094141940 A TW 094141940A TW 94141940 A TW94141940 A TW 94141940A TW 200720633 A TW200720633 A TW 200720633A
Authority
TW
Taiwan
Prior art keywords
vibration frequency
determining vibration
vibration
fiber grating
determining
Prior art date
Application number
TW094141940A
Other languages
Chinese (zh)
Other versions
TWI291045B (en
Inventor
Xi-Xun Cai
Jing-Wei Liang
sheng-xin Wu
Original Assignee
Mingchi Inst Of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mingchi Inst Of Technology filed Critical Mingchi Inst Of Technology
Priority to TW94141940A priority Critical patent/TWI291045B/en
Publication of TW200720633A publication Critical patent/TW200720633A/en
Application granted granted Critical
Publication of TWI291045B publication Critical patent/TWI291045B/en

Links

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

The present invention provides a device and system for counting periods of vibration. A fiber grating with thin film filter is mounted on a cantilever vibrator to monitor its vibration by sensing the change of light intensity which is reflected from the fiber grating and filtered with respect to a predetermined frequency range.
TW94141940A 2005-11-29 2005-11-29 Method and device for determining vibration frequency TWI291045B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW94141940A TWI291045B (en) 2005-11-29 2005-11-29 Method and device for determining vibration frequency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW94141940A TWI291045B (en) 2005-11-29 2005-11-29 Method and device for determining vibration frequency

Publications (2)

Publication Number Publication Date
TW200720633A true TW200720633A (en) 2007-06-01
TWI291045B TWI291045B (en) 2007-12-11

Family

ID=39460426

Family Applications (1)

Application Number Title Priority Date Filing Date
TW94141940A TWI291045B (en) 2005-11-29 2005-11-29 Method and device for determining vibration frequency

Country Status (1)

Country Link
TW (1) TWI291045B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106644038A (en) * 2017-01-18 2017-05-10 山东大学 MOEMS wireless vibration sensor based on comb grid and operation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106644038A (en) * 2017-01-18 2017-05-10 山东大学 MOEMS wireless vibration sensor based on comb grid and operation method thereof
CN106644038B (en) * 2017-01-18 2023-08-18 山东大学 MOEMS wireless vibration sensor based on comb-shaped grids and working method thereof

Also Published As

Publication number Publication date
TWI291045B (en) 2007-12-11

Similar Documents

Publication Publication Date Title
GB201314579D0 (en) Distributed acoustic sensing
WO2010019823A3 (en) Determining a status in a wellbore based on acoustic events detected by an optical fiber mechanism
ATE520005T1 (en) DEVICE AND METHOD FOR OPTICAL DISTANCE MEASURING
TW200726969A (en) Resonant sensor for surface of plasma
DE602005024141D1 (en) OPTICAL DEVICE FOR MULTIMODE TRANSMISSION
WO2008119073A3 (en) Portable optical measurement assembly and methods
WO2012115950A3 (en) Pickup system with a cartridge
DE602004007760D1 (en) Optical device for measuring the distance between the device and a surface
NO20085002L (en) Device and method using asymmetric optical resonances
ATE441104T1 (en) DEVICE FOR OPTICALLY MEASURING SUBSTANCE CONCENTRATIONS
DE602006018101D1 (en) Device for optical transmission
ATE433093T1 (en) MONITORING DEVICE FOR A ROTATING BODY
DE60309476D1 (en) OPTICAL DEVICE AND METHOD FOR MEASURING LIGHT TRANSMISSION
DE602007010329D1 (en) APPARATUS AND METHOD FOR AMBIENT MONITORING
FR2840071B1 (en) DEVICE FOR DETERMINING THE FINESSE OF MINERAL FIBERS
RU2011146131A (en) ULTRASONIC CONTROL SYSTEM
DE602004030387D1 (en) Optical device for measuring brain function
WO2008058281A3 (en) Method and apparatus for obtaining the distance from an optical measurement instrument to and object under test
GB2537464A (en) Fiber optic vibration monitoring
EP1860655A3 (en) Optical disc apparatus
RU2014126636A (en) GAS SENSORS
ATE410767T1 (en) MEASURING BOX FOR A HEARING DEVICE AND CORRESPONDING MEASURING METHOD
EP3812711A3 (en) Fiber optic sensing system for grid-based assets
EA201100067A1 (en) OPTICAL MEASURING DEVICE AND METHOD FOR CONDUCTING REFLECTIVE MEASUREMENTS
FR2888339B1 (en) OPTICAL FIBER SEISMIC SENSOR

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees