矿用锚杆长度无损测量电路的设计

Design of Nondestructive Measurement Circuit for Anchor Length of Mine

锚杆是地下煤矿巷道加固与支护中常用而且非常重要的材料,如果锚杆的安装长度没有达到设计要求,其对锚固质量影响很大。基于电磁波在传输过程中形成电驻波的原理进行矿用锚杆长度的无损测量,可以达到快速、准确、简便的目的,适用于大规模的锚杆长度检测,介绍了测量电路的设计。

Anchor is common and important material for reinforcement and support of underground coal mine roadway. If the length of the anchor is not up to the design requirements, it has a great influence on the anchorage quality. Based on the principle that electro- magnetic wave can form electric standing wave in the transmission process, we carry out the nondestructive measurement of bolt length, and it can achieve the purpose of rapid, accurate, simple and is suitable for large - scale measurement of anchor length. The design of measuring circuit is introduced.