An improved wavelet denoising method used in electrical throttle performance testing

In this paper, an electrical throttle performance test system is designed mainly focusing on its potentiometer and function tests. An improved denoising algorithm based upon the wavelet transform is proposed in non-stationary testing environment. In the experiment, the virtual instrument is used to call the denoising module and processes the acquiring signals. It is proved that its effect is obviously more excellent than conventional algorithms. This test system is then used in actual assembly line. Good parts can be sorted out efficiently and the quality of assembly line is improved.