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放大器     
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  amplifier
    The development of an optical coupling ECG Amplifier
    光耦合心电放大器的研制
短句来源
    Low-noise amplifier with low dissipation
    低噪声低功耗放大器
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    A dual input microelectrode amplifier for bioelectric recording
    双端微电极生物电放大器
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    Brain Mave Amplifier
    脑波放大器
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    Application of Integrated Operational Amplifier in Four-Electrode Electrochemical Systems
    集成运算放大器在四电极电化学测量系统中的应用
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  magnifier
    Trouble Shooting of TOSHIBA 1.5T Nucleur Magnetic RF Magnifier
    TOSHIBA1.5T核磁RF放大器故障维修
短句来源
    The working procedures of direct current power and magnifier of6511-type ECG and repairment
    ECG-6511心电图机直流电源及心电放大器剖析与故障维修
短句来源
    The signal of examination parameter is picked up through the sensor, magnified through the magnifier, and then collected and disposed through PCI2003 which is based on PCI bus.
    它是建立在微机Windows环境下的,试验参数信号经传感器拾取、放大器放大后,通过基于PCI总线的内置数据采集卡PCI2003进行数据采集和处理。
短句来源
    Resistance of PT100 is used as temperature sensor assisted by operation magnifier with high input resistance ,it can be used for high accurate temperature measuring.
    使用PT100-铂电阻作为温度传感器,辅之高输入阻抗的运算放大器,可用于高精度温度测量,用单片机作为测量核心可使电路简单、实用.
短句来源
  amplifier a
    3. Several sorts of little capacity sensing circuit are researched, based on the theory of charge amplifier, a scheme of switch phase sensitivity demodulate is designed, according the experiment, the result proved it's a valuable interface circuit.
    3.研究了多种小电容检测电路,设计了基于电荷放大器原理的开关相敏解调检测方案,通过实验测试,有效地检测出小电容变化量。
短句来源
    The structure andoperation principle of the neuroelectrical amplifier, A/D converter and computer interface circuit are emphatically discussed.
    重点阐述了仪器的神经电信号放大器和A/D转换及计算机接口电路的结构及工作原理。
短句来源
    The hardware contained two impedance measurement channels, an ECG amplifier, a computer and a printer.
    该测量仪由二路阻抗测量放大器、一路心电放大器和计算机及打印机组成。 阻抗测量放大器可以单独使用 ,也可以二路同步测量。
短句来源
    A new multichannel strain measuring system has been designed. The system can eliminate the effects from the drifts of operational amplifier, A/D convertor and active bridge during measurement, and has extremely high accuracy and stability.
    设计了一种新型多通道应变测量系统 ,该系统能够消除测量环节中的运算放大器、A D转换器及电桥供电电源漂移的影响 ,具有极高的测量精度和稳定性。
短句来源
  “放大器”译为未确定词的双语例句
    In this system we realize the data transmission between the PC and the automatic patch-clamp with USB control chip CYC68013. The design of the hardware interface, the firmware and the application software in PC are described in details.
    该系统采用USB2.0控制器CY7C68013,实现了PC机和膜片钳放大器的数据传输。 详细介绍了USB硬件接口、固件程序设计以及上位机应用程序的设计。
短句来源
    An unbalanced fiberMach-Zehnder interferometer composed by a 3X3 coupler and a 2X2 coupler is used , there is 120degree difference between the three outputs of interferometer.
    非平衡Mach-Zehnder干涉仪作为相移光纤光栅传感器波长移动的解调器,由一只2X2耦合器和一只3X3耦合器组成,其三路输出信号之间互存120度相位差,由高通滤波器、微分器、差分放大器、加法器、积分器等环节组成的解调电路可直接获取被传感信号。
    Checkup of disorders in radio-frequency am-plifier for 1.5T MRI system
    1.5T磁共振系统射频放大器故障检修
短句来源
    The D/A and I/O of data acquisition card will be controlled through VB software, so programmed real-time control of Z-axis should be achieved efficiently.
    主要利用VB编程,有效的控制了数据采集卡的D/A和开关量,从而控制了AB2伺服放大器的工作电压和工作模式,实现了对Z轴驱动的实时可编程控制。
短句来源
    The voltage reference of IC is 2.2V,which can keep stabilization when the power supply is bigger than 2.3V.In that case circuits can insulate yawp from power supply.
    在稳压源电路设计中,采用了运算放大器负反馈的形式,使参考电压源为2.2V,并在电源大于2.3V时保持稳定,隔离了电源噪声。
短句来源
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  amplifier
And we simulated the transmission model constructed with Erbium-doped fiber amplifier (EDFA) as the solo amplifier and the chirped fiber Bragg grating (CFBG) as the solo dispersion compensator used in the system.
      
The displacement of a piezoelectric multilayer actuator was amplified by a flexure-hinged amplifier based on the principles of triangle amplification.
      
A new electron beam (EB) control system was developed in a general vacuum EB machine by equipping it with an industrial control computer, programmable logic control (PLC), deflection coil, data acquisition card, power amplifier, etc.
      
This problem is of interest in connection with the possibility of application to the design of jet amplifier-one of the elements of fluidic automatic control (pneumonies) [1, 2].
      
The influence of a chain pumping reaction mechanism in a diffusion-type continuous-action chemical amplifier on an RF molecule is investigated.
      
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  magnifier
Adjacent QTc, measured by lens magnifier, was calculated on the first, second and third days after acute myocardial infarction.
      
The target was rendered disparate with the use of a magnifier placed in front of one eye.
      
The normal ranges and errors for PR were found to be similar to those of a previous study using a measuring magnifier.
      
Using a stereo-magnifier (magnification: × 10 - × 16), type 1a- (stromal fat cells!) and type lbglands (without stromal fat cells!) could be differentiated.
      
The olfactory region demonstrates under a magnifier a "furlike" structure, produced by the superficial bundles of olfactory cilia.
      
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  enlarger
We propose an outline to design an instance generator using an expanding graph of a certain type, called here an "exact 1/2-enlarger".
      
We first show a simple algorithm for constructing an exact 1/2-enlarger, thereby deriving one concrete polynomial-time instance generator GEN.
      
We also show that an exact 1/2-enlarger can be obtained with high probability
      
Different negative densities were simulated by a series of time exposures for a uniform field in an enlarger, using a range of photographic papers.
      
Lenses L7 and L8 are F3.5, 150 mm focal length enlarger lenses.
      
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  amplifier a
Amplifier A device that boosts the strength of a television signal.
      
Amplifier A4 has a gain of 1 with a 2-pole filter.
      
Amplifier A device which increases the power or amplitude of an electrical signal.
      
Avoid touching wells with dropper tips or pipette tips when dispensing amplifier A and B as this may lead to cross-contamination between wells.
      
Bias voltages Vb1 and Vb2 and the low-frequency feedback amplifier A1 are chosen to stabilize the gain against temperature and supply variations.
      
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In this paper a pneumatic thermo-couple transducer using nozzle jet reaction as Working principle is described and a reasonable designing procedure based on error analysis is proposed.

发送器是气动自动装置中一个很重要部分,但是目前还十分薄弱。因此气动发送器的研究工作在国内外都引起有关方面的极大重视。热偶型温度发送器中,通常在电一气转换部分都用折皺管作为反馈元件,该元件刚度及迟滞较大,这就不得不提高补偿元件中的作用力到数十克以致数百克力。这样在电一气转换器前必须放置前置电子放大器,使结构复杂化。在热偶型温度发送器中引入空气射流力作为补偿力,就根除了上述反馈元件的刚度、迟滞和磨擦的影响,大大提高了补偿系统的灵敏度。这样就有可能直接把通用热电偶的热电势直接转变成气压信号,而不再需要前置电子放大器[1]。本文是作者在刘豹付教授指导下作的研究工作的一部分,旨在实验基础上探索以空气射流力为补偿力的气动热电偶高温发送器的设计与计算方法。

This paper brings out an apparatus which contains a silicon measuring cell and amplifier, and can display the moving locus of the vibrational body on an oscilloscope. This apparatus is mainly used to measure the amplitude of the spindle along the x and y axes, to analyse the stability of the motion, and to investigate the self-excited vibration of the spindle. It may also be used to measure any other high speed rotational body.

本文所提出的振动轨迹测定仪,包括硅光电池转换器和放大器,并经示波器可显示振动物体的运动轨迹,此仪器主要用于测定锭子x,y轴的振幅,用于分析其运动稳定性并可研究锭子自激振动规律,其原理也可用于测定其它高速回转件。

This paper describes a new proportional temperature controller with high stability. Pure nickel wire with a high resistance-temperature coefficient is used both as the tem-perature sensing element and the heating element. The control circuit is a self-balancing current loop which makes use of a four-terminal resistor of nickel wire to assure a close-loop both electrically and thermally. Its advantages are that one may accurately and con-veniently set up the thermal operating point, achieve a large-area thermal...

This paper describes a new proportional temperature controller with high stability. Pure nickel wire with a high resistance-temperature coefficient is used both as the tem-perature sensing element and the heating element. The control circuit is a self-balancing current loop which makes use of a four-terminal resistor of nickel wire to assure a close-loop both electrically and thermally. Its advantages are that one may accurately and con-veniently set up the thermal operating point, achieve a large-area thermal sampling, improve the temperature regulation precision, and obtain lower noise and lower cost. The practical measuring results are consistent with that derived by the formula des-cribed in this paper. Analysis shows that the temperature may be stabilized to within 0.001℃ if some general integrated operational amplifiers such as the FC54 series are used. However, if integrated operational amplifiers with lower drift were used, the stability would be about 100μ℃.

本文描述一种新的高精度比例控温器。它采用温度系数较大的纯镍丝作为温度敏感的采样元件,并兼作加热元件。控温电路采用四端电阻自平衡电流环路,从而保证其电气和温度均处于闭环状态。其优点是可准确而方便地设置工作温度点、大面积温度采样、改善了控温精度和降低了噪声,另一个优点是成本低廉。本文导出的控温精度公式与实际测量结果一致。分析表明,采用诸如FC54型系列的通用集成运算放大器,即可将温度稳定在1m℃以内。如果采用低漂移集成运放,温度稳定度可达100μ℃量级。

 
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