| 1. | The design of voltage amplifier for dc ac standard supply
交直流标准源电压放大器的研制
|
| 2. | This measurement amplifier with relay outputs works as a uniform voltage amplifier for strain gauge measuring bridges
这款测量放大器带有继电输出，它像恒定电压放大器那样工作，用于应变测量电桥。
|
| 3. | The fault that the series resistor has high value can be avoided by using the constant current amplifier , and the fault that the dividing resistor reduces the working voltage of the speaker can be avoided by using the constant voltage amplifier
使用恒流功放，可以避免传统方法中串联电阻取值过大的缺点；使用恒压功放，可以消除分压电阻降低扬声器工作电压的不足。
|
| 4. | We have designed the scanning and control system , which includes a pre - amplifier , a pid feedback and scanning - control circuit , high - voltage amplifiers and so on . the function of controlling scan and feedback has been realized
设计完成包含有前置放大电路、 pid反馈和扫描控制电路、高压放大电路等扫描控制电路在内的扫描控制系统，完成各部分电路性能的测试及功能调试，实现反馈和扫描控制。
|
| 5. | 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。
|
| 6. | To solve the problems above , this dissertation supported by the project of national natural science foundation ( nnsf ) : research on piezoceramic micro - actuator ’ s polarity modeling and controlling method ( code : 60274053 ) focuses on the research of driving and control technique of piezoceramic . the drivers based on voltage , current control had been designed with the high voltage amplifier as core component
针对压电陶瓷驱动存在的上述问题,本文结合国家自然基金项目“压电陶瓷微驱动器件极化模型与驱动方法的研究” (编号: 60274053 ) ,以高压运算放大器为核心元件,通过分析电压、电流型驱动器原理及电路参数,提出了一种弥补其不足的复合型驱动方法。
|
您当前位置：