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采用433 MHz声表面波谐振器串联电路对番荔枝储存时间进行检测。将番荔枝样品串联接入检测电路,采集声表面波谐振器的负载频率数据。试验结果表明,随着番荔枝样品储存时间的延长,声表面波负载频率呈现下降的趋势。根据检测频率线性回归结果,可以判定番荔枝样品的储存期时间。该方法具有响应快、重复性好、成本低等优势,有望于水果储存时间快速检测中得到应用。
The 433 MHz SAW resonator series circuit was used to measure the storage time of annona. Sugar cane samples in series connected to the detection circuit, the acquisition of surface acoustic wave resonator load frequency data. The experimental results show that with the prolongation of the storage time of annotata samples, the surface acoustic wave loading frequency shows a downward trend. According to the linear regression results of the detection frequency, we can determine the storage time of the litchi samples. The method has the advantages of fast response, good repeatability, low cost and the like, and is expected to be applied in the rapid detection of fruit storage time.