CN115427778A - 法珀传感器腔长解调系统和法珀传感器腔长解调方法 - Google Patents

法珀传感器腔长解调系统和法珀传感器腔长解调方法 Download PDF

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Publication number
CN115427778A
CN115427778A CN202080099947.6A CN202080099947A CN115427778A CN 115427778 A CN115427778 A CN 115427778A CN 202080099947 A CN202080099947 A CN 202080099947A CN 115427778 A CN115427778 A CN 115427778A
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China
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light
curve
wavelength
fabry
cavity length
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黄祖炎
乔蒙
张立喆
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Beijing Bywave Sensing Technology Co ltd
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Beijing Bywave Sensing Technology Co ltd
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Publication of CN115427778A publication Critical patent/CN115427778A/zh
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/28—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with deflection of beams of light, e.g. for direct optical indication
    • G01D5/30—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with deflection of beams of light, e.g. for direct optical indication the beams of light being detected by photocells
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
    • G01L11/02—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)

Abstract

一种法珀传感器腔长解调系统和法珀传感器腔长解调方法。解调系统包括：第一光源(1)，发出第一波长的光；第二光源(2)，发出第二波长的光；波分复用器(3)，接收来自第一光源(1)的光和来自第二光源(2)的光；光纤耦合器(4)，接收并耦合第一光源(1)的光和第二光源(2)的光；法珀传感器(5)，接收来自光纤耦合器(4)的耦合光，使得耦合光在法珀传感器(5)的第一平面和第二平面处反射以发生干涉，并使干涉光返回光纤耦合器(4)；解复用器(6)，接收干涉光，并干涉光分为第一光束(L1)和第二光束(L2)；第一探测器(7)和第二探测器(8)，分别接收第一光束(L1)和第二光束(L2)，并将第一光束(L1)的第一干涉信号和第二光束(L2)的第二干涉信号传输至处理器(9)，处理器(9)构造成获取并分析第一干涉信号的第一曲线(S1)和第二干涉信号的第二曲线(S2)，以在第一曲线(S1)和/或第二曲线(S2)中确定引起腔长变化的待测物理量的拐点，第一曲线(S1)是第一干涉信号的光强相对于腔长的曲线，第二曲线(S2)是第二干涉信号的光强相对于腔长的曲线。

Description

PCT国内申请，说明书已公开。

Claims (12)

  1. PCT国内申请，权利要求书已公开。
CN202080099947.6A 2020-04-20 2020-04-20 法珀传感器腔长解调系统和法珀传感器腔长解调方法 Pending CN115427778A (zh)

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PCT/CN2020/085609 WO2021212266A1 (zh) 2020-04-20 2020-04-20 法珀传感器腔长解调系统和法珀传感器腔长解调方法

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115900535A (zh) * 2023-01-04 2023-04-04 北京佰为深科技发展有限公司 干涉解调装置和干涉测量系统
CN115931022A (zh) * 2023-01-04 2023-04-07 北京佰为深科技发展有限公司 光纤法布里珀罗传感器解调系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114323121A (zh) * 2021-12-06 2022-04-12 北京遥测技术研究所 一种基于光纤传感器声与温度双参量同时测量系统
CN114879426B (zh) * 2022-07-11 2022-09-09 中国航空工业集团公司北京长城计量测试技术研究所 用于提高可调谐法珀滤波器工作带宽温度适应性的装置及方法

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Publication number Priority date Publication date Assignee Title
US6057911A (en) * 1997-11-17 2000-05-02 Northrop Grumman Corporation Fiber optic fabry-perot sensor for measuring absolute strain
CN101858926B (zh) * 2010-05-17 2012-03-14 哈尔滨工程大学 基于四芯光纤的集成式二维光纤微加速度计
CN101865935B (zh) * 2010-06-04 2012-07-11 哈尔滨工程大学 二维高精度组合干涉式纤维集成加速度计
CN102003977A (zh) * 2010-10-14 2011-04-06 厦门大学 基于法布里－珀罗腔的多波长光纤传感器
US9945740B2 (en) * 2015-05-14 2018-04-17 Kulite Semiconductor Products, Inc. Two wavelength optical interferometric pressure switch and pressure transducers
CN105606193B (zh) * 2015-12-18 2019-04-19 天津大学 基于双可调谐光源的光纤法珀声振动传感装置及解调方法
CN106643834A (zh) * 2016-12-26 2017-05-10 重庆大学 一种高速大量程光纤法珀解调系统
CN108507597A (zh) * 2018-04-09 2018-09-07 西安工业大学 光纤法珀传感器解调装置及方法
CN110044466B (zh) * 2019-05-15 2021-08-10 重庆大学 光纤Fabry-Perot水听器的双波长非线性声压解调方法及系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115900535A (zh) * 2023-01-04 2023-04-04 北京佰为深科技发展有限公司 干涉解调装置和干涉测量系统
CN115931022A (zh) * 2023-01-04 2023-04-07 北京佰为深科技发展有限公司 光纤法布里珀罗传感器解调系统

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