The removing and correction for abnormal value in acquisition signal of thermal analysis instrument
WU Guo-xin · 2004
The thermal analysis instrument for the practical producing process blends a great deal of data in the spot. Among the data, any abnormal value may affect the result of the sketch. Since errors inevitably exist in the measured data,it is very important to make pretreatment for the measurement of data.Taking the thermal analysis instrument as an example,a method of judging abnormal value is offered in the paper.Combined with virtual instrument technology,a wave pattern is displayed after removing the abnormal value owing to interference effect and optimizing acquisition signal by using the method of two data addition and evenness .This means is effective and perceptive,and supplies the forceful foundation for improving the real-time curve and enhancing the analytic accuracy.