基于新型压电换能器的振动加速度传感器的测量线路的设计.doc
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基于新型压电换能器的振动加速度传感器的测量线路的设计,全文45页约15000字论述翔实摘 要本文针对传统的压电陶瓷制作的振动加速度传感器灵敏度及分辨率不够高等问题.从提高传感器和测量电路的灵敏度出发，本文分析阐述了一种新型压电传感器的原理、设计（结构和电路设计）制作。根据电压放大器和电荷放大器2 种前置电路的特点,对压电...
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基于新型压电换能器的振动加速度传感器的测量线路的设计
全文45页 约15000字 论述翔实
摘 要
本文针对传统的压电陶瓷制作的振动加速度传感器灵敏度及分辨率不够高等问题.从提高传感器和测量电路的灵敏度出发，本文分析阐述了一种新型压电传感器的原理、设计（结构和电路设计）制作。根据电压放大器和电荷放大器2 种前置电路的特点,对压电传感器与前置电路如何配接进行研究提出当压电传感器与测量电路之间的距离较远要求高灵敏度时,宜采用后一种方式,这种新的检测电路，具有低漂移、高增益、高输入阻抗等优点，此方法具有实际的指导意义。
总之，这种采用了新型压电换能器作为敏感元件的新型压电加速度传感器，与传统的传感器相比，具有结构简单、高灵敏度、低漂移等优点，是一种非常具有前途的产品，它必将成为传统压电振动传感器的替代型。
关键词：压电换能器,压电传感器,前置放大器,电荷放大器，灵敏度,振动加速度传感器
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 录
摘 要 I
Abstract II
第一章 概述 - 1 -
1.1压电式振动加速度传感器现状 - 1 -
1.2Cymbal型压电复合材料 - 2 -
第二章 压电式振动加速度传感器的工作原理 - 5 -
2．1压电陶瓷的压电效应 - 5 -
2.2压电方程 - 7 -
2.2.1加力不加电 - 8 -
2.2.2加电不加力 - 8 -
2.3压电加速度传感器 - 9 -
2.3.1 结构原理 - 9 -
2.3.2动态响应 - 10 -
第三章 测量电路原理分析 - 15 -
3.1压电式传感器的等效电路 - 15 -
3.2电压放大器（阻抗变换器） - 16 -
3.3荷放大器 - 19 -
3.3.1电荷放大器的工作原理 - 19 -
3.3.2电荷放大器的工作带宽 - 24 -
3.3.3电荷放大器的噪声及漂移特性电 - 25 -
第四章实测电路设计与分析 - 27 -
4.1实验方法 - 27 -
4.2 实际测量电路 - 28 -
4.2.1测量电路（一） - 28 -
4.2.2实测电路（二） - 31 -
4.2.3最终得到的电路流程图电路图： - 35 -
4.3压电式传感器的误差及噪声 - 36 -
第五章 总结 - 39 -
结束语 - 41 -
参考文献 - 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
本文针对传统的压电陶瓷制作的振动加速度传感器灵敏度及分辨率不够高等问题.从提高传感器和测量电路的灵敏度出发，本文分析阐述了一种新型压电传感器的原理、设计（结构和电路设计）制作。根据电压放大器和电荷放大器2 种前置电路的特点,对压电传感器与前置电路如何配接进行研究提出当压电传感器与测量电路之间的距离较远要求高灵敏度时,宜采用后一种方式,这种新的检测电路，具有低漂移、高增益、高输入阻抗等优点，此方法具有实际的指导意义。
总之，这种采用了新型压电换能器作为敏感元件的新型压电加速度传感器，与传统的传感器相比，具有结构简单、高灵敏度、低漂移等优点，是一种非常具有前途的产品，它必将成为传统压电振动传感器的替代型。
关键词：压电换能器 压电传感器; 前置放大器; 电荷放大器，
灵敏度; 振动加速度传感器
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
参考文献
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、张淑英编著，《传感器原理及应用》，天津大学出版社，1999.2第二版
4、郁有文、常健编著，《传感器原理及应用》，西安电子科技大学出版社，2000.1第一版
全文45页 约15000字 论述翔实
摘 要
本文针对传统的压电陶瓷制作的振动加速度传感器灵敏度及分辨率不够高等问题.从提高传感器和测量电路的灵敏度出发，本文分析阐述了一种新型压电传感器的原理、设计（结构和电路设计）制作。根据电压放大器和电荷放大器2 种前置电路的特点,对压电传感器与前置电路如何配接进行研究提出当压电传感器与测量电路之间的距离较远要求高灵敏度时,宜采用后一种方式,这种新的检测电路，具有低漂移、高增益、高输入阻抗等优点，此方法具有实际的指导意义。
总之，这种采用了新型压电换能器作为敏感元件的新型压电加速度传感器，与传统的传感器相比，具有结构简单、高灵敏度、低漂移等优点，是一种非常具有前途的产品，它必将成为传统压电振动传感器的替代型。
关键词：压电换能器,压电传感器,前置放大器,电荷放大器，灵敏度,振动加速度传感器
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 录
摘 要 I
Abstract II
第一章 概述 - 1 -
1.1压电式振动加速度传感器现状 - 1 -
1.2Cymbal型压电复合材料 - 2 -
第二章 压电式振动加速度传感器的工作原理 - 5 -
2．1压电陶瓷的压电效应 - 5 -
2.2压电方程 - 7 -
2.2.1加力不加电 - 8 -
2.2.2加电不加力 - 8 -
2.3压电加速度传感器 - 9 -
2.3.1 结构原理 - 9 -
2.3.2动态响应 - 10 -
第三章 测量电路原理分析 - 15 -
3.1压电式传感器的等效电路 - 15 -
3.2电压放大器（阻抗变换器） - 16 -
3.3荷放大器 - 19 -
3.3.1电荷放大器的工作原理 - 19 -
3.3.2电荷放大器的工作带宽 - 24 -
3.3.3电荷放大器的噪声及漂移特性电 - 25 -
第四章实测电路设计与分析 - 27 -
4.1实验方法 - 27 -
4.2 实际测量电路 - 28 -
4.2.1测量电路（一） - 28 -
4.2.2实测电路（二） - 31 -
4.2.3最终得到的电路流程图电路图： - 35 -
4.3压电式传感器的误差及噪声 - 36 -
第五章 总结 - 39 -
结束语 - 41 -
参考文献 - 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
本文针对传统的压电陶瓷制作的振动加速度传感器灵敏度及分辨率不够高等问题.从提高传感器和测量电路的灵敏度出发，本文分析阐述了一种新型压电传感器的原理、设计（结构和电路设计）制作。根据电压放大器和电荷放大器2 种前置电路的特点,对压电传感器与前置电路如何配接进行研究提出当压电传感器与测量电路之间的距离较远要求高灵敏度时,宜采用后一种方式,这种新的检测电路，具有低漂移、高增益、高输入阻抗等优点，此方法具有实际的指导意义。
总之，这种采用了新型压电换能器作为敏感元件的新型压电加速度传感器，与传统的传感器相比，具有结构简单、高灵敏度、低漂移等优点，是一种非常具有前途的产品，它必将成为传统压电振动传感器的替代型。
关键词：压电换能器 压电传感器; 前置放大器; 电荷放大器，
灵敏度; 振动加速度传感器
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
参考文献
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、张淑英编著，《传感器原理及应用》，天津大学出版社，1999.2第二版
4、郁有文、常健编著，《传感器原理及应用》，西安电子科技大学出版社，2000.1第一版
