大部分元件需要DIY，所以需要知道元件的参数。因为DIY的元件没有标称技术参数。比如，需要知道谐振器件、检波器件、天线、耳机、变压器等器件的电抗特性。其中，高频参数可以使用Q表解决问题，而低频参数Q表难以测定。为了解决这个问题，笔者认为LCR数字电桥能够胜任。((Most components require DIY, so you need to know the parameters element. DIY components because there is no nominal technical parameters. For example, the need to know the reactance characteristic resonant devices, detection devices, antenna, headphones, transformers and other devices. Among them, high-frequency parameters can use Q table to solve the problem, while difficult to measure low frequency parameter Q table. To solve this problem, I think LCR digital bridge capable. Design goals: 1, it is possible to accurately measure the reactor L, C, R, precision better than 0.5 , if the file manually by calibration accuracy of better than 0.3 2, drawing easy circuit is simple, easy to make, cost should be properly controlled. So that it has more value and amateur DIY research value, and learn details about LCR bridge, the principle by design, DIY. The basic features of the LCR table AD converter Word Count: approximately 1000 words, using the oversampling technology, effective reso))