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  counting circuit
The results of this study indicate that in terms of efficiency, the Packard 2250Ca liquid scintillation spectrometer is sensitive to the scintillation cocktail employed for241Pu analysis, particularly when the burst counting circuit is enabled.
      
By the use of a photoelectric pickup and an electronic counting circuit, the instrument which has been described allows one to measure infrasonic damped oscillations with great accuracy.
      
A counting circuit, pulse/delay generator and waveform generator are used to synchronize the PIV system and the drop ejection process.
      
Changes were also made in the electronic counting circuit to enable a determination of ion intensities at high count rates.
      
Unlike encoders that require a counting circuit to track position, absolute encoders provide the correct data after a power-down event.
      
  counter circuit
Figure 7 depicts the capacitance versus fanout plot for the nets in the Counter circuit.
      
For the counter circuit a mean power error of 3.2% per net and load, with a standard deviation of 1.6% is achieved.
      
The functionality of the counter circuit was tested by bread-boarding a circuit composed of tunnel diodes and discrete NPN transistors.
      
  counting circuits
The distinguishing features of counting circuits with point-contact transistors are considered.
      
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在核物理实验中,往往需要测知离子流的电量与离子流强度。比较简便的方法是用积分电路来测量电量,同时可指示离子流强度。本文所介绍的是一个实用的积分电路,其中包括直流放大,触发电路,计数电路及稳定电源等。离子流的强度由仪器上电流表指出,电量由机械记数器的数字来表示。

A simple method of designing sequential counting circuits, in particular the asynchronous sequential counting circuit, is proposed. The commonly used method is simplified because of the introduction of the intermediate variables α, β, x and the minimization POS functions of controlled input terminals can be quickly and accurately obtained.

本文介绍一种时序计数电路的简化设计方法,由于引进α、β、χ等中间变量,从而简化了一般设计方法中的一些表格,并能迅速而准确地得到控制输入端的最小化“积之和”函数式.这种方法特别适合于非同步时序计数电路的设计.

practical counting circuit with photoelectric coded disks is introduced which can be used in the measurement devices with digital display, especially in numerical control machines and servo systems. For the systems, in which there is microvibration occassionally, precise results can still be obtained by using this unit, which would be helpful for improving control accuracy of control systems.

介绍一种实用的光电编码器计数电路.该计数电路可用于效显测量装置,特别适于在数控机床、伺服系统中应用,对系统中有微振动的增况,仍能获得准确的测量结果,有利于提高系统的控制精度.

 
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