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电荷放大器     
相关语句
  charge amplifier
     A Design of Charge Amplifier of Vortex Flowmeter
     旋涡流量计电荷放大器的设计
短句来源
     Reliability-analysis of charge amplifier
     电荷放大器可靠性分析
短句来源
     In the course of field measurement, acceleration sensors are fixed by magnetic bases at points of 1/2, 1/4 and 1/8 span, the two pedestals and two compensators individually, the detected signals are sent to an INV-306 Intelligent Signal Analyzer after being amplified by a charge amplifier, and then stored in a computer to be treated with DASP2000 Data Processing Software to obtain the desired results. 
     现场测量是将加速度传感器通过磁力座固定在管桥的1/2跨、1/4跨、1/8跨、支座及补偿器位置,信号经电荷放大器放大后,输送到INV-306智能信号采集处理分析仪,并存储在计算机中,然后采用DASP2000数据处理及分析软件进行分析处理,得到测试结果。
短句来源
     The experiment study on piezoelectricity characteristics of the PVDF strain sensor between 0.1 Hz and 30 Hz is carried out and the reason why there is phase difference between PVDF strain and the output voltage of the charge amplifier within range of low frequencies is analyzed.
     通过试验研究了国产PVDF应变传感器在0.1~30Hz频率范围内的压电特性,分析振动频率较低时,PVDF的应变与电荷放大器输出电压之间有相位差的原因。
短句来源
     Influence of Charge Amplifier on Dynamic Characteristics of Quartz Sensor
     电荷放大器对石英传感器动态特性的影响
短句来源
更多       
  electric charge amplifier
     A cutting force measurement system is developed, including the Kistler piezoelectricity dynamometer, electric charge amplifier, PCL818HD data acquisition card and PC. Based on the system, the turning experiments of FZNCr-60A and BKHA coatings have been made.
     论文构建了由Kistler压电测力仪、电荷放大器、PCL818HD数据采集卡及PC等组成的硬件系统,在此系统上,进行了高温合金热喷涂层材料FZNCr-60A和BKHA的车削加工试验研究。
短句来源
     The grinding force is obtained online using piezoelectricity milling and grinding ergometer, electric charge amplifier, A/D card and data collection software.
     利用压电石英晶体三维测力仪、电荷放大器和A/D板在线采集磨削力;
短句来源
     1. Developed the special electric charge amplifier and scan drive circuit fitting for piezoelectric sensor array, resolved the problem of wastage and aberrance of signal transport long-distance while several sensor shared a set of charge amplifier.
     论文介绍的系统具有创新如下:1、研制出了适合压电传感器列阵的特殊电荷放大器及其相应的扫描驱动电路,解决了多个相距较远的传感器共用一套电荷放大器时存在的信号传输损耗与畸变问题;
短句来源
     The hardware of the system is built upon the general computer, including pulse hammer, electric charge amplifier, piezoelectricity sensor, A/D convertor etc;
     该系统的硬件部分以通用计算机为核心,包括脉冲锤、电荷放大器、压电式传感器、采集卡等;
短句来源
     Research on quasi-static characteristics of the electric charge amplifier for pizoelectric transducers
     压电传感器二次仪表──电荷放大器的准静态特性研究
短句来源
更多       
  charge amplifiers
     By using PE accelerometers and precise charge amplifiers,the shock induced vibration of the supporting structure and the base of a 25kg TNT equivalent explosion vessel loaded by six different blast loadings is measured for comparison at three representative positions.
     运用压电加速度计及精密电荷放大器,对25kg TNT当量爆炸容器在六种TNT当量加载下对邻近结构及基础产生的冲击振动进行了三点比较测试。
短句来源
     The shock induced vibration of the 10kg TNT equivalent explosion vessel system loaded by five different explosion loadings are monitored at four representative positions with PE accelerometers and precise charge amplifiers.
     采用电压加速度计及精密电荷放大器 ,对 10kgTNT当量爆炸容器系统在五种TNT当量加载下的冲击振动进行了四点比较测试。
短句来源
     The test for the prototype has proved that this type of power supply has reliable and outstanding performances, and can meet the need of the charge amplifiers of piezoelectric transducers for the multiple DC supplys
     经对电源样机的实验测试,该电源性能好、工作可靠,可以满足用于压电传感器的电荷放大器对多种直流电的需要。
短句来源
     UsingLSI circuits, the system integrates the charge amplifiers, the voltage amplifiers under automatic gain control, the programmable anti- blending filters, the A/D converters, the large capacity data storage, the dot array LCD and communication POrts into one complete identificationand monitoring system.
     在系统中利用大规模集成电路将电荷放大器、自适应量程电压放大器、程控抗混滤波器、A/D转换器、大容量非易失数据存储器、图形液晶显示器和通讯接口集成在一起。
短句来源
     Using two low power charge amplifiers as column readout circuit (one is for the odd row readout and the other is for the even row),this structure can not only eliminate the influence of column bus parasitic capacitance,but also save 15% power dissipation of the column circuit. Thus,it is very suitable for large format small pixel lower power readout circuit.
     采用两个低功耗设计的电荷放大器做列读出电路 ,分别用于奇偶行的读出 ,不但可有效消除列线寄生电容的影响 ,而且列读出电路的功耗可降低 15 % ,因此 OESCA新结构特别适于要求低功耗设计的大规模、小像素阵列焦平面读出电路 .
短句来源
更多       
  a charge amplifier
     In the course of field measurement, acceleration sensors are fixed by magnetic bases at points of 1/2, 1/4 and 1/8 span, the two pedestals and two compensators individually, the detected signals are sent to an INV-306 Intelligent Signal Analyzer after being amplified by a charge amplifier, and then stored in a computer to be treated with DASP2000 Data Processing Software to obtain the desired results. 
     现场测量是将加速度传感器通过磁力座固定在管桥的1/2跨、1/4跨、1/8跨、支座及补偿器位置,信号经电荷放大器放大后,输送到INV-306智能信号采集处理分析仪,并存储在计算机中,然后采用DASP2000数据处理及分析软件进行分析处理,得到测试结果。
短句来源
     This article firstly introduced constitutes of the Weight In Motion system which took AT89C51 microcomputer as its core coupled by an A/D convert circuit and a charge amplifier with an emphasis on the latter. Then the signal entered the host computer and was worked by the software part.
     首先给出了动态称重系统设计组成,该系统以单片机AT89C51为核心,配以电荷放大器、A/D转换单元,然后用主机进行软件处理,重点介绍了其中的电荷放大器
短句来源
     According to the indexes of the electricity generating performance and their affecting factors,a system with a Hall displacement transducer and a charge amplifier to measure the vibration amplitude of the PEC and the quantity of electric charge was developed.
     根据压电陶瓷发电性能指标以及影响因素,设计了采用霍尔位移传感器和电荷放大器对压电陶瓷振幅和电荷量进行测量的系统。
短句来源
     This disadvantage is overcome by introducing a charge amplifier. The steady state sensitivity of the charge measurement system is d/C_F,which depends only on the feedback capacitance C_F of the charge amplifier,and is independent of transducer and cable capacitances.
     该电压测量系统的缺点可通过加电荷放大器来改善,此时压电电荷测量系统的稳态灵敏度为d/CF,它只依赖于电荷放大器的反馈电容,与石英晶体和连接导线的电容无关。
短句来源
     design of the measurement system made up of a charge amplifier, interface circuits and so on, design of the system's software compare of data acquisition, processing, storage, search, display, print, and so on.
     设计了由电荷放大器、接口电路等组成的检测系统。 设计了检测系统的数据采集、处理、存储、查询、显示、打印等软件。
更多       

 

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  charge amplifier
Noise Immune Charge Amplifier for Piezoelectric Accelerometers
      
A charge amplifier with active in-phase interference suppression is intended for investigations at impact loads accompanied by high-level noises.
      
A measuring assembly consisting of a piezoelectric transducer, a charge amplifier and a fast data acquisition board installed on a compatible PC computer, is used to obtain the indicator diagrams (i.e.
      
It consists of a 16 bit digital-to-analog converter whose voltage is fixed by the parallel port, a charge amplifier which provides the voltage to the piezoelectric ceramics and a current divider for the control of the voltage on each channel.
      
The sensor was tested on its basic performance with a charge amplifier measuring system.
      
更多          
  charge amplifiers
The system consisted of eight polyvinylidene fluoride cable sensors, charge amplifiers and measuring software, together with an analogue-to-digital converter unit.
      
Charge amplifiers in the RWD increase the voltages of these signals.
      
Force plates and charge amplifiers are grouped on a segment.
      
In contrast, the charge amplifiers showed large common mode noise which was expected because of input load from the wire bond capacitance.
      
Monitoring pads at the outputs of voltage and charge amplifiers will enable us to see the analogue signal waveform, which was not possible in CPR1.
      
更多          
  a charge amplifier
A charge amplifier with active in-phase interference suppression is intended for investigations at impact loads accompanied by high-level noises.
      
A measuring assembly consisting of a piezoelectric transducer, a charge amplifier and a fast data acquisition board installed on a compatible PC computer, is used to obtain the indicator diagrams (i.e.
      
It consists of a 16 bit digital-to-analog converter whose voltage is fixed by the parallel port, a charge amplifier which provides the voltage to the piezoelectric ceramics and a current divider for the control of the voltage on each channel.
      
The sensor was tested on its basic performance with a charge amplifier measuring system.
      
A charge amplifier type 5011B, Kistler Instrumente AG, Winterthur converts its signal into voltage.
      
更多          
  其他


Starting from the need of measuring the vibration characteristics of bigger constructions, this paper introduces the Multi-point Measuring Unit consistig of a piezoelectric accelerometer, a simple charge amplifier and an analogue scanner, and provides the theoretical basis for using the Multi-point Measuring Unit together with the Transfer Function Analzser or Frequency Responsse Analyser 1170 series or Multi-point Excitetion System respectively to form a complete set.It also manes a brief introduction of the...

Starting from the need of measuring the vibration characteristics of bigger constructions, this paper introduces the Multi-point Measuring Unit consistig of a piezoelectric accelerometer, a simple charge amplifier and an analogue scanner, and provides the theoretical basis for using the Multi-point Measuring Unit together with the Transfer Function Analzser or Frequency Responsse Analyser 1170 series or Multi-point Excitetion System respectively to form a complete set.It also manes a brief introduction of the principle of the simple charge amplifier and the analogue scanner.

本文从大型构件振动特性测量需要出发,介绍了由压电式加速度计、简易电荷放大器和模拟扫描器组成的多点测量装置。并说明了该多点测量装置能分别与传递函数分析仪、多点激振系统以及1170频率响应分析仪配套使用的理论根据.对简易式电荷放大器和模拟扫描器的原理也作了扼要介绍。

The paper describes a fast logarithmic charge amplifier. Using this amplifier in a liquid scintillation counting device, absolute measurements of the activity of some radionuclides have been realized. The problem of closed-loop stability of logarithmic converters employing a bipolar transistor as logarithmic feedback element is discussed. A method for measuring the dynamic range of the fast logarithmic charge amplifier is described. Finally, the results of absolute measurement of the activity of several radioactive...

The paper describes a fast logarithmic charge amplifier. Using this amplifier in a liquid scintillation counting device, absolute measurements of the activity of some radionuclides have been realized. The problem of closed-loop stability of logarithmic converters employing a bipolar transistor as logarithmic feedback element is discussed. A method for measuring the dynamic range of the fast logarithmic charge amplifier is described. Finally, the results of absolute measurement of the activity of several radioactive solutions by this device are given.

本文介绍一种快对数电荷放大器。在液闪计数装置中采用这种对数放大器实现了对一些放射性核素活度的绝对测量。文章对于双极晶体管作为放大器反馈元件构成的对数交换器的闭环稳定性问题进行了分析。给出了快对数电荷放大器动态测量范围的测量方法以及采用这种对数电荷放大器的液闪计数装置对放射性溶液活度绝对测量的测量结果。

By means of a large number of experimental studies, the following valuable problems have been elucidated in this paper: The effects of long cable for transmitting signals on the output waveforms of the charge amplifier have been demonstrated during the long distance measurement of the pressure or the velocity of air shock waves: It is suggested to use the voltage amplifier and its matching coaxial cable for the long distance transmission of the signals; various factors which affect accurate measurement of the...

By means of a large number of experimental studies, the following valuable problems have been elucidated in this paper: The effects of long cable for transmitting signals on the output waveforms of the charge amplifier have been demonstrated during the long distance measurement of the pressure or the velocity of air shock waves: It is suggested to use the voltage amplifier and its matching coaxial cable for the long distance transmission of the signals; various factors which affect accurate measurement of the shock wave velocity have been discussed in detail; The formula of the systematic error of the systm for measuring velocity has been drived; The methods to reduce the systematic error have been put forward.

本文通过大量的试验与研究,论述了下列一些有价值的问题:论证冲击波速度或压力测量中、传输信号的长电缆对电荷放大器输出波形之影响;提出用电压放大器以及与其匹配的同轴电缆来解决信号的远距离传输问题;详细地剖析影响准确测量冲击波速度的诸因素;导出测速系统的系统误差公式,并阐述减小该误差的方法。

 
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