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本文介绍一种接口电路,用它来联接PZ8数字式电压表和EL5002袖珍计算器,能使数字式电压表测得的电压值直接输入到计算器,由计算器按预先排好的某种计算程序进行运算处理,最后显示结果.由于数字式电压表的读数经过计算器处理,所以最终的显示值可以是电压,也可以是电流、电阻等其它物理量.这好比给数字式电压表带上了一个小型电脑,仪器的使用效率及范围将大大改善.通过与微波测量中的六端口网络配合使用,证明这个接口电路切实可行.
This article describes an interface circuit that uses it to connect the PZ8 digital voltmeter and the EL5002 pocket calculator that enables the digital voltmeter to measure the voltage value directly into the calculator by the calculator according to a predetermined sort of calculation The program carries on the processing operation, finally displays the result.Because the digital voltmeter reading through the calculator processing, so the final display value may be the voltage, also may be the electric current, the resistance and so on other physical quantity.This is like bringing the digital voltmeter With a small computer, the efficiency and scope of the instrument will be greatly improved, and the use of a six-port network in microwave measurement proves that the interface circuit is viable.