票据打印机噪声的声强测量法声源识别

Sound Intensity Identification of Noise Source on the Dot-matrix Printer

运用声强测量原理对票据打印机进行了声源识别;对打印机进行声强测试,通过对声强分析和频谱分析,确定了打印机主要噪声辐射源来自于打印头,为进一步打印机降噪提供思路。

During the study of noise emitted by dot-matrix printer, using theory of sound intensity measurement, it is actualized identifying the noise sources. In the process of the contour of sound intensity and frequency spectrum analysis, main noises of the bill printer are from the head of bill printer. According to all analysis, the noise reason provides a method of reducing noise.