论文部分内容阅读
在苏北某工区进行磁带地震勘探,采用DZ-701型磁带地震仪,用辽阳大功率爆炸机自动放炮,在生产过程中,发现假讯号(记时线没炸断,仪器就接收了讯号)。通过几次试验,都证明假讯号的存在。假讯号来源于爆炸机电容向雷管放电造成的感应电流,通过计时回路送到仪器里。假讯号与真讯号时差很小,监视记录难以区分,因为假讯号出现在真讯号前面,故真讯号仪器记录不上,这势必严重的影响野外原始资
Tape seismic exploration in a work area in northern Jiangsu, the use of DZ-701 tape seismograph, automatic blasting machine with Liaoyang high-power explosion in the production process, found that the false signal (time line did not explode, the instrument receives the signal) . Pass several tests, have proved the existence of false signals. The false signal comes from the induced current caused by the detonator capacitor discharge to the detonator and is sent to the instrument through the timing loop. Fake signal and the true signal time difference is very small, difficult to distinguish between the monitoring records, because the false signal appears in front of the true signal, so the true signal equipment does not record, which is bound to seriously affect the wild original capital