论文部分内容阅读
市售普通高压表一般具有功能单一、价格昂贵等缺点,有时一个高压表价格上千元。其实,配合万用表,完全可以自己制作简单而有较高精度的高压表,笔者自己就制作了一台,具体介绍如下: 取一报废的彩电高压包,从变压器根部将聚焦电压引线和高压引线剪下备用,高压引线另一端的高压帽要保留,另外准备三个小鳄鱼夹(其中至少一个红色,一个黑色),一个小功率20MΩ以上电阻(R1),R1阻值大些更好,两个小功率电阻(R2、R3),一个病房传呼系统或床头灯用的床头开关。
General high pressure gauge commercially available generally has the function of a single, expensive and other shortcomings, and sometimes a high pressure gauge on the price of a thousand dollars. In fact, with the multimeter, can produce their own simple and high precision high voltage meter, the author himself produced a specific introduction is as follows: Take a scrapped TV high voltage package, the voltage from the root of the transformer will focus the lead and high voltage lead wire shears Under the reserve, the high-voltage cap on the other end of the high-voltage lead should be reserved. In addition, three small alligator clips (at least one red and one black), a small power 20MΩ resistor (R1), a better R1 resistance, Low-power resistors (R2, R3), bedside switch for a patient paging system or bedside light.