基于新型壓電換能器的振動(dòng)加速度傳感器的測量線路的設(shè)計(jì).doc
約45頁DOC格式手機(jī)打開展開
基于新型壓電換能器的振動(dòng)加速度傳感器的測量線路的設(shè)計(jì),全文45頁約15000字論述翔實(shí)摘 要本文針對傳統(tǒng)的壓電陶瓷制作的振動(dòng)加速度傳感器靈敏度及分辨率不夠高等問題.從提高傳感器和測量電路的靈敏度出發(fā)，本文分析闡述了一種新型壓電傳感器的原理、設(shè)計(jì)（結(jié)構(gòu)和電路設(shè)計(jì)）制作。根據(jù)電壓放大器和電荷放大器2 種前置電路的特點(diǎn),對壓電...
內(nèi)容介紹
此文檔由會員 花季永駐 發(fā)布
基于新型壓電換能器的振動(dòng)加速度傳感器的測量線路的設(shè)計(jì)
全文45頁 約15000字 論述翔實(shí)
摘 要
本文針對傳統(tǒng)的壓電陶瓷制作的振動(dòng)加速度傳感器靈敏度及分辨率不夠高等問題.從提高傳感器和測量電路的靈敏度出發(fā)，本文分析闡述了一種新型壓電傳感器的原理、設(shè)計(jì)（結(jié)構(gòu)和電路設(shè)計(jì)）制作。根據(jù)電壓放大器和電荷放大器2 種前置電路的特點(diǎn),對壓電傳感器與前置電路如何配接進(jìn)行研究提出當(dāng)壓電傳感器與測量電路之間的距離較遠(yuǎn)要求高靈敏度時(shí),宜采用后一種方式,這種新的檢測電路，具有低漂移、高增益、高輸入阻抗等優(yōu)點(diǎn)，此方法具有實(shí)際的指導(dǎo)意義。
總之，這種采用了新型壓電換能器作為敏感元件的新型壓電加速度傳感器，與傳統(tǒng)的傳感器相比，具有結(jié)構(gòu)簡單、高靈敏度、低漂移等優(yōu)點(diǎn)，是一種非常具有前途的產(chǎn)品，它必將成為傳統(tǒng)壓電振動(dòng)傳感器的替代型。
關(guān)鍵詞：壓電換能器,壓電傳感器,前置放大器,電荷放大器，靈敏度,振動(dòng)加速度傳感器
Abstract
As well been known, the traditional PZT piezoelectric virbration acceleration sensor has something to be improved, such as the bad resistance to noises, low sensitivity, and so on. In order to improve the sensitivity of the piezoelectric sensor and that of the measuring circuit, this paper focuses on the mechanism of the sensor, designs of its structure and circuit. Based on the features of two front end circuits of voltage amplifier and charge amplifier, research on the connection of piezoelectric sensor and front end amplifier is done .When the distance between piezoelectric sensor and measuring circuit is far and require high sensitivity, the latter method is the proper choice. This new circuit presented to the sensor has low shift, high gain, high resistance to input and other advantages. This method has the practical leading meaning.
In conclusion, this new kind of cymbal piezocomposite transducer used for vibration acceleration sensor has more advantages, simple structure, high sensitivity, low shift and so on, it has wide future. It would be the substitution of the traditional sensor
Keywords: Cymbal piezocomposite ransducer, Preamplifier ;
Charge amplifier, sensitivity virbration acceleration sensor
目 錄
摘 要 I
Abstract II
第一章 概述 - 1 -
1.1壓電式振動(dòng)加速度傳感器現(xiàn)狀 - 1 -
1.2Cymbal型壓電復(fù)合材料 - 2 -
第二章 壓電式振動(dòng)加速度傳感器的工作原理 - 5 -
2．1壓電陶瓷的壓電效應(yīng) - 5 -
2.2壓電方程 - 7 -
2.2.1加力不加電 - 8 -
2.2.2加電不加力 - 8 -
2.3壓電加速度傳感器 - 9 -
2.3.1 結(jié)構(gòu)原理 - 9 -
2.3.2動(dòng)態(tài)響應(yīng) - 10 -
第三章 測量電路原理分析 - 15 -
3.1壓電式傳感器的等效電路 - 15 -
3.2電壓放大器（阻抗變換器） - 16 -
3.3荷放大器 - 19 -
3.3.1電荷放大器的工作原理 - 19 -
3.3.2電荷放大器的工作帶寬 - 24 -
3.3.3電荷放大器的噪聲及漂移特性電 - 25 -
第四章實(shí)測電路設(shè)計(jì)與分析 - 27 -
4.1實(shí)驗(yàn)方法 - 27 -
4.2 實(shí)際測量電路 - 28 -
4.2.1測量電路（一） - 28 -
4.2.2實(shí)測電路（二） - 31 -
4.2.3最終得到的電路流程圖電路圖： - 35 -
4.3壓電式傳感器的誤差及噪聲 - 36 -
第五章 總結(jié) - 39 -
結(jié)束語 - 41 -
參考文獻(xiàn) - 42 -
Abstract
As well been known, the traditional PZT piezoelectric virbration acceleration sensor has something to be improved, such as the bad resistance to noises, low sensitivity, and so on. In order to improve the sensitivity of the piezoelectric sensor and that of the measuring circuit, this paper focuses on the mechanism of the sensor, designs of its structure and circuit. Based on the features of two front end circuits of voltage amplifier and charge amplifier, research on the connection of piezoelectric sensor and front end amplifier is done .When the distance between piezoelectric sensor and measuring circuit is far and require high sensitivity, the latter method is the proper choice. This new circuit presented to the
摘 要
本文針對傳統(tǒng)的壓電陶瓷制作的振動(dòng)加速度傳感器靈敏度及分辨率不夠高等問題.從提高傳感器和測量電路的靈敏度出發(fā)，本文分析闡述了一種新型壓電傳感器的原理、設(shè)計(jì)（結(jié)構(gòu)和電路設(shè)計(jì)）制作。根據(jù)電壓放大器和電荷放大器2 種前置電路的特點(diǎn),對壓電傳感器與前置電路如何配接進(jìn)行研究提出當(dāng)壓電傳感器與測量電路之間的距離較遠(yuǎn)要求高靈敏度時(shí),宜采用后一種方式,這種新的檢測電路，具有低漂移、高增益、高輸入阻抗等優(yōu)點(diǎn)，此方法具有實(shí)際的指導(dǎo)意義。
總之，這種采用了新型壓電換能器作為敏感元件的新型壓電加速度傳感器，與傳統(tǒng)的傳感器相比，具有結(jié)構(gòu)簡單、高靈敏度、低漂移等優(yōu)點(diǎn)，是一種非常具有前途的產(chǎn)品，它必將成為傳統(tǒng)壓電振動(dòng)傳感器的替代型。
關(guān)鍵詞：壓電換能器 壓電傳感器; 前置放大器; 電荷放大器，
靈敏度; 振動(dòng)加速度傳感器
Abstract
As well been known, the traditional PZT piezoelectric virbration acceleration sensor has something to be improved, such as the bad resistance to noises, low sensitivity, and so on. In order to improve the sensitivity of the piezoelectric sensor and that of the measurin
參考文獻(xiàn)
1、PZT-Polymer piezoelectric composites: A design for an acceleration sensor, Sensors and Actuators, Vol.36, 1993.
2、SamesF.Tressler.at1.IEEE.TuFFC.vol.44.1997.9
3、王化祥、張淑英編著，《傳感器原理及應(yīng)用》，天津大學(xué)出版社，1999.2第二版
4、郁有文、常健編著，《傳感器原理及應(yīng)用》，西安電子科技大學(xué)出版社，2000.1第一版
全文45頁 約15000字 論述翔實(shí)
摘 要
本文針對傳統(tǒng)的壓電陶瓷制作的振動(dòng)加速度傳感器靈敏度及分辨率不夠高等問題.從提高傳感器和測量電路的靈敏度出發(fā)，本文分析闡述了一種新型壓電傳感器的原理、設(shè)計(jì)（結(jié)構(gòu)和電路設(shè)計(jì)）制作。根據(jù)電壓放大器和電荷放大器2 種前置電路的特點(diǎn),對壓電傳感器與前置電路如何配接進(jìn)行研究提出當(dāng)壓電傳感器與測量電路之間的距離較遠(yuǎn)要求高靈敏度時(shí),宜采用后一種方式,這種新的檢測電路，具有低漂移、高增益、高輸入阻抗等優(yōu)點(diǎn)，此方法具有實(shí)際的指導(dǎo)意義。
總之，這種采用了新型壓電換能器作為敏感元件的新型壓電加速度傳感器，與傳統(tǒng)的傳感器相比，具有結(jié)構(gòu)簡單、高靈敏度、低漂移等優(yōu)點(diǎn)，是一種非常具有前途的產(chǎn)品，它必將成為傳統(tǒng)壓電振動(dòng)傳感器的替代型。
關(guān)鍵詞：壓電換能器,壓電傳感器,前置放大器,電荷放大器，靈敏度,振動(dòng)加速度傳感器
Abstract
As well been known, the traditional PZT piezoelectric virbration acceleration sensor has something to be improved, such as the bad resistance to noises, low sensitivity, and so on. In order to improve the sensitivity of the piezoelectric sensor and that of the measuring circuit, this paper focuses on the mechanism of the sensor, designs of its structure and circuit. Based on the features of two front end circuits of voltage amplifier and charge amplifier, research on the connection of piezoelectric sensor and front end amplifier is done .When the distance between piezoelectric sensor and measuring circuit is far and require high sensitivity, the latter method is the proper choice. This new circuit presented to the sensor has low shift, high gain, high resistance to input and other advantages. This method has the practical leading meaning.
In conclusion, this new kind of cymbal piezocomposite transducer used for vibration acceleration sensor has more advantages, simple structure, high sensitivity, low shift and so on, it has wide future. It would be the substitution of the traditional sensor
Keywords: Cymbal piezocomposite ransducer, Preamplifier ;
Charge amplifier, sensitivity virbration acceleration sensor
目 錄
摘 要 I
Abstract II
第一章 概述 - 1 -
1.1壓電式振動(dòng)加速度傳感器現(xiàn)狀 - 1 -
1.2Cymbal型壓電復(fù)合材料 - 2 -
第二章 壓電式振動(dòng)加速度傳感器的工作原理 - 5 -
2．1壓電陶瓷的壓電效應(yīng) - 5 -
2.2壓電方程 - 7 -
2.2.1加力不加電 - 8 -
2.2.2加電不加力 - 8 -
2.3壓電加速度傳感器 - 9 -
2.3.1 結(jié)構(gòu)原理 - 9 -
2.3.2動(dòng)態(tài)響應(yīng) - 10 -
第三章 測量電路原理分析 - 15 -
3.1壓電式傳感器的等效電路 - 15 -
3.2電壓放大器（阻抗變換器） - 16 -
3.3荷放大器 - 19 -
3.3.1電荷放大器的工作原理 - 19 -
3.3.2電荷放大器的工作帶寬 - 24 -
3.3.3電荷放大器的噪聲及漂移特性電 - 25 -
第四章實(shí)測電路設(shè)計(jì)與分析 - 27 -
4.1實(shí)驗(yàn)方法 - 27 -
4.2 實(shí)際測量電路 - 28 -
4.2.1測量電路（一） - 28 -
4.2.2實(shí)測電路（二） - 31 -
4.2.3最終得到的電路流程圖電路圖： - 35 -
4.3壓電式傳感器的誤差及噪聲 - 36 -
第五章 總結(jié) - 39 -
結(jié)束語 - 41 -
參考文獻(xiàn) - 42 -
Abstract
As well been known, the traditional PZT piezoelectric virbration acceleration sensor has something to be improved, such as the bad resistance to noises, low sensitivity, and so on. In order to improve the sensitivity of the piezoelectric sensor and that of the measuring circuit, this paper focuses on the mechanism of the sensor, designs of its structure and circuit. Based on the features of two front end circuits of voltage amplifier and charge amplifier, research on the connection of piezoelectric sensor and front end amplifier is done .When the distance between piezoelectric sensor and measuring circuit is far and require high sensitivity, the latter method is the proper choice. This new circuit presented to the
摘 要
本文針對傳統(tǒng)的壓電陶瓷制作的振動(dòng)加速度傳感器靈敏度及分辨率不夠高等問題.從提高傳感器和測量電路的靈敏度出發(fā)，本文分析闡述了一種新型壓電傳感器的原理、設(shè)計(jì)（結(jié)構(gòu)和電路設(shè)計(jì)）制作。根據(jù)電壓放大器和電荷放大器2 種前置電路的特點(diǎn),對壓電傳感器與前置電路如何配接進(jìn)行研究提出當(dāng)壓電傳感器與測量電路之間的距離較遠(yuǎn)要求高靈敏度時(shí),宜采用后一種方式,這種新的檢測電路，具有低漂移、高增益、高輸入阻抗等優(yōu)點(diǎn)，此方法具有實(shí)際的指導(dǎo)意義。
總之，這種采用了新型壓電換能器作為敏感元件的新型壓電加速度傳感器，與傳統(tǒng)的傳感器相比，具有結(jié)構(gòu)簡單、高靈敏度、低漂移等優(yōu)點(diǎn)，是一種非常具有前途的產(chǎn)品，它必將成為傳統(tǒng)壓電振動(dòng)傳感器的替代型。
關(guān)鍵詞：壓電換能器 壓電傳感器; 前置放大器; 電荷放大器，
靈敏度; 振動(dòng)加速度傳感器
Abstract
As well been known, the traditional PZT piezoelectric virbration acceleration sensor has something to be improved, such as the bad resistance to noises, low sensitivity, and so on. In order to improve the sensitivity of the piezoelectric sensor and that of the measurin
參考文獻(xiàn)
1、PZT-Polymer piezoelectric composites: A design for an acceleration sensor, Sensors and Actuators, Vol.36, 1993.
2、SamesF.Tressler.at1.IEEE.TuFFC.vol.44.1997.9
3、王化祥、張淑英編著，《傳感器原理及應(yīng)用》，天津大學(xué)出版社，1999.2第二版
4、郁有文、常健編著，《傳感器原理及應(yīng)用》，西安電子科技大學(xué)出版社，2000.1第一版
