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由中国地质科学院地球物理地球化学勘查研究所研发的“一种基于双频发射双频接收的无线电波坑道透视仪”获批为国家实用新型专利。无线电波坑道透视仪是一种利用电磁波在不同介质中传播的差异特性,探测矿井回采工作面内的地质构造的仪器,可以对矿床开采情况、隧道周边、隧道间水文地质、工程地质、灾害地质体进行有效的探测。电磁波频率越高,透视精度越高,透视距离越短;通过选择不同频率,可以在保证透视距离的基础上,提高解释精度。以往的坑道透视仪只能单频发射、单频接收,如果低频探测不到信号需要改用高频探测信号,工作人
Developed by the Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, “A radio wave tunnel based on dual-frequency dual-frequency reception” was approved as a national utility model patent. Radio wave tunnel perspective instrument is a use of electromagnetic wave propagation in different media, the difference between the characteristics of the mine to detect the face of the geological structure of the mining equipment, the mining situation, the tunnel around the tunnel between the hydrogeology, engineering geology, geological disasters Body for effective detection. The higher the frequency of electromagnetic waves, the higher the perspective accuracy, the shorter the perspective distance; by selecting different frequencies, you can ensure the perspective of the distance, based on the interpretation to improve accuracy. Previous tunnel fluoroscopy only single-frequency transmission, single-frequency receiver, if the signal can not be detected at low frequencies need to switch to high-frequency detection signal, the workers