Piezoceramics have been used successfully for many years in the field of vibration control , owning to its high forces into the range of kilo - newtons and short reaction times in the order of a few microseconds 压电材料由于其自身的压电效应和逆压电效应而被制作成压电传感器和压电驱动器来对结构的振动进行控制。
In the part of signal acquisition , the system gets signal through piezoelectric sensor and real time collects it through programming the card of data acquisition , at the same time , displays the signal dynamic 信号采集是利用压电传感器测得信号并送入计算机，通过对数据采集板进行编程，实时采集并动态显示信号，从而监控加工过程。
Because of inadequate information obtained , difficulty of mount and lowness of dependability , traditional vehicle detection and classification with induction loop or piezoelectricity sensor can not be widely used 传统的利用环形感应线圈或压电传感器等识别车辆类型，安装不方便，器件容易损坏，获取的交通信息比较少，因此未能广泛应用。
In previous research , we had constructed a primary platform of the blood coagulation sensor detection system and developed a data analysis software , and studied the feasibility of the blood coagulation test using this platform 在前期研究中,我们已经构建出了压电凝血检测仪的核心平台和分析软件,并证明了利用压电传感器检测凝血功能具有可行性。
After analyzing the sense principles and calculation expression for piezoelectricity , we compose a sense network , compare the difference between the voltage amplifier and charge amplifier , give out the electric circuit of piezoelectric sensor for measure system 在分析了压电片对动态应变的传感原理和计算表达式后，该系统采用压电传感器组建了一个传感器网络。并且对比了电压放大器和电荷放大器的差异。
3 . an elementary attempt has been made to enhance the signa - to - noise ratio of pqc sensors using cholestyramine particles embedded in the sensing film . bor more , an all - purpose sulpha - drugs pqc sensor was developed whch can be used for screening practice 对如何提高基于离子对缔合物的压电药物传感器的信噪比进行了初步探索，发现在传感膜层嵌入考来烯胺树脂颗粒对磺胺药物压电传感器的信号有明显的扩增作用。
Currently , zno is attracting attention for its application to uv light - emitters , varistors , transparent high power electronics , surface acoustic wave devices , piezoelectric transducers , gas - sensing and as a window material for display and solar cells 目前, zno由于在紫外光辐射、变阻器、透明高功率电子器件、表面声波器件、压电传感器、气敏传感器及作为显示器件和太阳能电池窗口材料方面的广泛应用而引起人们极大关注。
Recent years , the using of piezoelectric sensors becomes a focus in novel biosensors research . the basic principle is that the characters of its oscillation are highly responded with the changes of the surface mass adsorption , or the physic characters in the reaction system including density , viscosity , conductivity and so on . a piezoelectric biosensor with a nanogram sensitivity could be constructed through a reasonable biological processing and structure designing to the piezoelectric quartz crystal 近年来,压电传感器检测技术逐渐成为生物分析中的研究热点,其基本原理是利用石英晶体振荡特性对石英晶体表面质量负载(质量效应)和反应体系物理性状如密度、粘度、电导率(非质量效应)等的改变具有高度敏感的特性,通过对石英晶体进行适当的生物学处理和结构设计,构建出具有具有ng级检测能力的生物传感器。
The system has significant advantages in environments requiring high integration , low weight , and low electromagnetic interferences operated with batteries . the active vibration control aimed at a cantilever beam with piezoelectric sensors and actuators was studied , and the principle and the method of the sine pulse width modulation technology were analyzed 论文以表面粘贴有压电传感器和驱动器的悬臂梁为研究对象,运用正弦脉宽调制技术以及基于tms320f2812dsp硬件平台构建了实验系统,对其进行了研究。
At last , after introducing the design of an atmel 89c51 single chip system and some circuit , we have an experiment of active vibration control of cantilever with the fuzzy controller based on the general membership function we designed , and the cantilever beam is equipped with piezoelectric sensors and actuators 以装有压电传感器和驱动器的悬臂梁的应变为控制对象，以所设计的单片机系统作为控制器，采用具有广义隶属函数的模糊控制算法进行了悬臂梁主动减振控制实验。
