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超声波探伤中,缺陷定量时衰减器是一个重要工具,衰减器的衰减值分档细,读数精确,测量精度高,可得到最小的灵敏度误差,探测出的结果与实际情况比较符合。但是目前国内经常使用的仪器中都不具备有衰减器,为了保证发电设备的高质量,我们制作了CTS—8型晶体管探伤仪的外接衰减器。把仪器接头转换开关放置双—位置,仪器就经过衰减器工作,接法如图1所示。
In ultrasonic flaw detection, the attenuator is an important tool when quantifying defects. The attenuation value of the attenuator is fine, the readings are accurate, the measurement accuracy is high, and the minimum sensitivity error can be obtained. The detected results are in accordance with the actual situation. At present, however, there are no attenuators in the instruments commonly used in China. In order to ensure the high quality of the power generation equipment, we have fabricated an external attenuator for the CTS-8 transistor flaw detector. The instrument connector switch placed double - position, the instrument through the attenuator, the connection method shown in Figure 1.