This paper introduces a blueprinter system controlled by AT89C51 single chip microcomputer. The counter pulse circuit and the programme flow chart are given in detail.
本文介绍了一个AT89C5 1单片机在控制工程晒图机方面的应用实例，特别介绍了计数信号的获取和处理，并给出了详细的程序框图。
They are the analog counter, programmed to calculate pulse.
它们是模拟计数器，经编程后可以计算脉冲。
Pulse counter with manual reset and electric output signal.
有手动复位和电气输出信号的脉冲计数器。
Pulse signal of proportional amplifier is sent to counter after reduced noise by window voltage comparer.
经比例放大器放大后的脉冲信号经窗口电压比较放大器消除干扰给计数器。
The counter output, which represents a binary number, decreases by 1 any time the counter is triggered by a pulse .
每当计数器被时钟脉冲触发一次时，计数器输出的二进制数便累减1。
In this method the main part of the pulse width is measured by counter, and the odd of the pulse width is measured by time-voltage conversion method.
该方法以计数器法测取脉冲的主体宽度，用时间-电压转换法测取脉冲的零头时间，并以此作为量化误差的校正值。
The accuracy control of the motors in Gamma-ray irradiation of blood is realized by means of the inner pulse output code and the high-speed counter in PLC.
通过使用可编程控制器中的专用脉冲输出指令和高速计数器，实现了对辐照仪步进电机的精确控制。
Pulse counting with gate controlling have been two counted modes that the gate with counter are divided or combined.
门控脉冲计数有闸门与计数器分开和一体两种方式。
The COM of IBM-PC applications for the counter of Opt-encoder pulse and the controller of AC -Servo are study in this paper.
探讨了PC的串行接口用于光电编码器的脉冲计数和伺服电机控制两种非通信功能的应用。
When using pulse counting method, the precision of pressure-measuring with vibrating-wire sensor is influenced by the precision of pulse counter, circuit noise, temperature compensation, etc.
应用振弦式传感器并基于脉冲计数法进行压力测量可达测量精度受脉冲计数精度、电路噪声及温度补偿等多重因素影响。
The duration of the quenching pulse should exceed the recovery time of the counter.
脉冲的持续时间应当超过计数器的恢复时间。
The paper introduces the principle of frequency measure based on double-counter and multi-periods pulse synchronization method, and the designing with microprocessor is offered.
介绍了双计数器多周期同步法频率测量原理，给出了用单片机实现的具体实现方案。
The measuring system consists of a pulse amplifier, a rectifier, an integrator, and a pulse counter.
自光电倍增管而下测量系统由脉冲放大、整流、积分和计数器等组成。
The digital tachometer circuit, its principle is different from the pulse counter-type instrument, is described in this paper.
介绍了一种其电路原理与脉冲计数式仪表不同的数字转速表电路。
This paper discusses the results of system simulation of linear frequency modulation pulse-compression radar and draws some conclusion on its capability of counter-jamming.
通过噪声干扰、噪声调幅干扰和移频干扰对脉冲压缩雷达的干扰仿真得出了一些有意义的结论。
The decipher circuit of the counter : Count deciphers and integrate on the chip together, count the pulse number in unit time, count the result of the decimal counter to translate into BCD yard;
计数器译码电路：计数译码集成在一块芯片上，计单位时间内脉冲个数，把十进制计数器计数结果译成BCD码；
The decipher circuit of the counter : Count deciphers and integrate on the chip together, count the pulse number in unit time, count the result of the decimal counter to translate into BCD yard;
计数器译码电路：计数译码集成在一块芯片上，计单位时间内脉冲个数，把十进制计数器计数结果译成BCD码；
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