fbg傳感器在礦壓監(jiān)測系統(tǒng)中的實(shí)現(xiàn)

1、 論文題目：FBG 傳感器在礦壓監(jiān)測系統(tǒng)中的實(shí)現(xiàn) 工程領(lǐng)域：礦業(yè)工程 碩 士 生：丁 威 （簽名）＿＿＿＿＿ 校內(nèi)導(dǎo)師：肖 江 （簽名）＿＿＿＿＿ 校外導(dǎo)師：董衛(wèi)鋒 （簽名）＿＿＿＿＿ 摘 要 論文通過借鑒土木工程方面的應(yīng)用，提出了基于光纖光柵傳感的礦

2、壓監(jiān)測系統(tǒng)方案。論文對傳感器的各項(xiàng)參數(shù)的應(yīng)變響應(yīng)以及實(shí)際應(yīng)用中多點(diǎn)監(jiān)測中涉及到的監(jiān)測組網(wǎng)。在詳細(xì)分析了煤礦工作面和巷道產(chǎn)生災(zāi)害的形成機(jī)理后，設(shè)計(jì)了一整套壓力、位移傳感器。為了驗(yàn)證設(shè)計(jì)的傳感器使用功能，在實(shí)驗(yàn)室進(jìn)行了標(biāo)定實(shí)驗(yàn)和驗(yàn)證試驗(yàn)，結(jié)果證明達(dá)到了預(yù)期的效果。 在整個設(shè)計(jì)和實(shí)驗(yàn)過程中，驗(yàn)證以下四個方面的問題： （1） 波長解調(diào)儀的波形重疊現(xiàn)象一直得不到解決，在查閱光學(xué)方面的文獻(xiàn)后，利用特殊結(jié)構(gòu)—等強(qiáng)度梁作為載體與光柵一同受力，可以解決

3、了了重疊和多波峰現(xiàn)象。 （2） 在智能材料選擇上，高彈材料是保證發(fā)生大應(yīng)變的首選，為了匹配光柵的精度，提高分辨率，必須要盡可能產(chǎn)生大應(yīng)變，又基于封裝的尺寸要求，通過對材料物理性質(zhì)的篩選，解決了材料選型的問題。 （3） 曲線擬合有很多方法：曲率積分求得曲線位置、曲率積分遞推曲線位置、曲率的雙線性插值等方法， 在巷道變形監(jiān)測系統(tǒng)中采用曲率積分遞推曲線位置和曲率線性插值相結(jié)合的方式，利用數(shù)學(xué)遞推方法完成擬合。 （4） 在實(shí)驗(yàn)過程中證明壓

4、力、頂板離層、巷道變形監(jiān)測系統(tǒng)中均達(dá)到了應(yīng)用的要求。關(guān) 鍵 詞：FBG；傳感器；波長解調(diào)；礦壓監(jiān)測；曲線擬合 論文類型：產(chǎn)品設(shè)計(jì)Subject : Implementation of FBG sensors in the pressure monitoring system of mine Specialty : Mineral Engineering Name : Ding Wei (

5、Signature) Instructor : Xiao Jiang (Signature) Instructor : (Signature) ABSTRACT Research progress at home and abroad of mine pressure monitoring system, Summariz

6、es the existing problems in traditional monitoring system, The use of a large number of facts prove the widely application of fiber grating in various fields, and achieved considerable effect. Through the use of civil en

7、gineering, the pressure monitoring system based on Fiber Bragg grating sensing, then the paper from the understanding of the optical fiber, Introduces the principle of fiber Bragg grating sensor. The strain on the parame

8、ters of the sensor response and Multi point monitoring network in practical application, after In a detailed analysis of the coal mining face and roadway formation mechanism of disaster, Design a set of pressure, displac

9、ement sensor. In order to validate the use function of sensor design, calibration experiment was carried out and verified test in the laboratory, the results proved to achieve the desired effect. We get the following con

10、clusions in this design and experiment process: （1） Wavelength demodulation instrument waveforms overlapping pheno- menon has not resolved in search of optics literature, in this optical aspect of literature, the special

11、 structure of equal strength beam as the carrier and the grating to force can solve the overlapping and multi peak phenomenon. （2） In the intelligent choice of materials, high elastic material is the guarantee of large s

12、train of choice, In order to grating matching accuracy, as far as possible to produce large strain based on the requirements of packaging size through the screening of the physical properties of the material, the choice

13、is the spring steel 3J53. （3） There are a lot of methods of curve fitting: Curvature integral curvilinear position, Curvature integral recurrence curve, and the bilinear interpolation of curvature. In the settlement of g