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一、引言超声波衰减测量在工业上有着重要的用途[1]。国内曾用超声波衰减测量来鉴别球墨铸铁的球化质量;冶金工业方面,曾报道了用测量衰减的方法来测量矿浆的浓度;轻工业方面,还报道用测量衰减的方法来测量低浓度纸浆(如电容器纸)的情况。本文报道了利用我们自已研制的超声波发射接收电路,通过5G582对超声波在媒质中多次回波的峰值进行采样保持,取得可靠的测量数据,为 A/D 转换和数据的计算机处理提供了可靠的保证。
First, the introduction Ultrasonic attenuation measurement in the industry has an important use [1]. China has used ultrasonic attenuation measurement to identify the ductile iron ball quality; metallurgical industry, it has been reported by measuring the attenuation method to measure the concentration of pulp; light industry, it is also reported measuring the attenuation method to measure low concentrations of pulp (such as Capacitor paper). This article reports the use of our own developed ultrasonic transmitter and receiver circuit, through the 5G582 ultrasonic echo in the medium multiple echo sampling peak hold, to obtain reliable measurement data for the A / D conversion and data processing provides a reliable guarantee .