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- equivalent circuit of piezoelectric crystal unit [电] 压电晶体单位的等值电路
- fundamental piezoelectric crystal unit [电] 基本压电晶体单元
- piezoelectric crystal unit 压电晶体
- A substance or device, such as a piezoelectric crystal, microphone, or photoelectric cell, that converts input energy of one form into output energy of another. 换能器一种能把输入能量转化为另一种输出能量的物质或装置，比如压电晶体、扩音器或光遇管
- A substance or device,such as a piezoelectric crystal,microphone,or photoelectric cell,that converts input energy of one form into output energy of another. 换能器一种能把输入能量转化为另一种输出能量的物质或装置，比如压电晶体、扩音器或光遇管。
- Surface plasmon resonance( SPR) immunosensor, quartz piezoelectric crystal( QCM) immunosensor and capacitive immunosensor are mainly label-free biosensors in immunoassays. 无标记型免疫传感器能够直接测定生物样品,测定过程中无需预先对被测物进行标记,适应直接、时、位、线的痕量免疫分析,已经广泛应用于临床医学、境、药、品等分析领域中。
- Electromechanical equation of piezoelectric crystal stack is derived from the piezoelectric equations of constant D and constant stress,but the acoustic speed of under the constant E is used in design in practical transducer design. 推导晶堆的机电状态方程时 ,选用的是恒定电位移及恒定应力时的压电方程 ,最后设计计算时却又用的是恒定电场下的声速。
- To use a crystal unit as an oscillator, its oscillated frequency is required to be stable against temperature variations . 石英晶体作为谐振器在使用时，要求其谐振频率在温度发生变化时保持稳定。
- OBJECTIVE To develop a piezoelectric crystal DNA sensor of Leishmania protozoan METHODS The DNA sensor was prepared by immobilizing DNA probe on surface of piezoelectric quartz crystal. 方法对压电石英晶体表面进行处理并结合上探针DNA制成DNA传感器,在不同的杂交时间和杂交浓度条件下测定其频率响应。
- Crystal unit is assembied with AT-CUT or BT-CUT blank,it has the characteristics of good frequency stability and temperature stability. 石英晶体谐振器采用AT和BT切晶片，具有稳定度高，频率温度特性好等特点。
- piezoelectric crystal loudspeaker 压电晶体扬声器
- mesoscopic quartz piezoelectric crystal 介观压电石英晶体
- piezoelectric crystal microphone 压电晶体传声器
- In an ordinary oscillation circuit the crystal unit is used in a range where it functions as an inductive reactance in such usage ,the oscillation circuit operates as a capacitive reactance . 在通常的振荡电路中，石英晶体谐振器作为感抗，而振荡电路作为一个容抗被使用。
- Based on the piezoelectric effect,a hypothesis which electromagnetic emissions were yielded by charge movements resulted by destroying piezoelectric crystals during rock fracture was established. 基于晶体的压电效应,提出岩石破裂时出现的电磁脉冲现象是由压电晶体破坏导致瞬间的电荷运动而产生的假说。
- SPECIFIC CRYSTAL UNIT FOR INTERPHONE 对讲机专用小公差晶体谐振器
- As supersonic generator internal structural Fig.1 shows , it has two piezoelectricity crystal and a resonance board. 超声波发生器内部结构如图1所示，它有两个压电晶片和一个共振板。
- Keywords Piezoelectric crystal;immunosensor;protein A; 压电晶体;免疫传感器;蛋白A;
- inductance constant of crystal unit 晶体振子电感常数
- The authors present a new method to measure frequency of piezoelectricity crystal in the process of grinding on line. 精度高,并可实现石英压电晶体研磨过程自动化。
