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本文一般介绍了该仪器的基本单元电路,着重讨论了对于不同使用条件下的焊接裂缝声发射监测仪必须选用不同频带的滤波器,并介绍了该仪器所采用的滤波器的设计方法。本文可供研制声发射监测仪或将声发射技术用于焊接裂缝监测的人员参考。
This article describes the basic unit of the instrument circuit, focusing on the different conditions for the use of welding crack acoustic emission monitor must choose different band filters, and introduces the instrument used in the design of the filter. This article is intended for those who develop acoustic emission monitors or use acoustic emission techniques for weld fracture monitoring.