摘要
在测量电感电容值时,传统的测量大都采用交流电桥法和谐振法。然而这些方法通常采用刻度读数,读数不够直观。着眼于对传统测量方式的改进,基于LC振荡电路原理,结合以AT89S51单片机为核心的频率测量电路,设计一种数字式电感电容测量仪,给出详细的电路原理和程序流程,对测量原理做了较详细的阐述。基于LC振荡电路原理测量LC是本设计的创新之处。
Measuring the value of the inductance capacitance in traditional measuring mostly utilizes AC bridge and resonance. But these methods often read the value by scale meter, so the display isn＇t intuitive. Compared with the traditional method, the design of digital inductance capacitance measuring apparatus is based on the principle of LC oscillation circuit and the frequency measuring circuit which uses AT89S51 as the core. Detailed circuit principle and program diagram are given. The measuring principle is also expatiated in detail. The innovation of the design is measuring LC based on the principle of LC oscillation circuit.
出处
《现代电子技术》
2008年第22期20-21,25,共3页
Modern Electronics Technique
基金
广西研究生教育创新计划资助项目(200810602080M265)
