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本文提出用声波自动丈量钻杆长度,其设备轻便,使用简单,只需两人用探测器同时接触钻杆两端,仪器就能显示出这根钻杆的长度并把它用数字记录下来。如选用声波换能器(探测器)的频率大于1兆周,则钻杆长度的丈量范围为0.2～10米,在此范围内,丈量精度可达±0.6毫米,工作环境温度为-40℃～+50℃。
This paper proposes to measure the length of the drill pipe automatically with the sound wave. The equipment is light and easy to use. The probe can show the length of the drill pipe and record it digitally with the help of the probe with two people. If the choice of sonic transducer (detector) frequency is greater than 1 trillion weeks, then the measuring range of the length of the drill pipe is 0.2 to 10 meters, in this range, the measurement accuracy of ± 0.6 mm, the working environment temperature is -40 ℃ ~ + 50 ℃.