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将在线小波变换应用于伏安信号的在线处理,研制了具有小波变换功能的伏安分析仪.该系统利用在线小波变换对采集到的数据进行实时处理,具有控制灵活、分辨率高、数据处理方便等特点.通过对低浓度Cu~(2+)和Fe~(3+)混合样品的阶梯斜坡扫描伏安信号的滤噪及定性、定量分析,结果表明可获得满意的分析结果.
The on-line wavelet transform is applied to online processing of volt-ampere signal, and a voltammetric analyzer with wavelet transform function is developed. The system uses online wavelet transform to process the collected data in real time, with the advantages of flexible control, high resolution and data processing Convenient and etc. The results of the analysis of the results of the filtering analysis, the qualitative analysis and the quantitative analysis of the stair-sweep voltammetric signal of the mixed samples of low concentration Cu 2+ and Fe 3+ show that satisfactory analytical results can be obtained.