基于小波和相关分析的虚拟介损在线检测仪

On Line Measurement of Dielectric Loss Tamgent for Capacitive Type Equipment Based on Wavelet & Correlation Technique

介绍了虚拟电容型设备介损在线检测仪的原理和仪器结构 ,给出了测量结果。该测试仪采用小波和相关技术相结合的方法 ,消除了噪声及电磁干扰对测量结果的影响 ,提高了测试精度。在结构上采用最新一代的测试仪——虚拟仪器 ,具有测试性能优越 。

For the problem of dielectric loss tangent on line measurement for capacitive type equipment,a Virtual Instrument based on wavelet analysis and correlation technique is presented in this psper. In this instrument, wavelet transform is frist be applied to remove the noise existed in the collected signals, correlation technique is then be used to get the measuring results with satisfied accuracy and reliability. By applying the construction of Virtual Instrument,the instrumemt has high level intelligence and satisfied character. The principle of the instrument is introduced in detail and the results are given.