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近年来,利用无人机平台搭载航空电磁勘探设备已经成为一种发展趋势,本文首先阐述了半航空瞬变电磁系统在国内外的研究进展,然后介绍了一种全新的利用无人直升机搭载的半航空瞬变电磁勘探系统(S-ATEM).S-ATEM系统由发射子系统、接收子系统、数据处理子系统和飞行平台组成,本文对各子系统关键技术及系统指标进行了详细阐述.S-ATEM系统采用无人直升机作为飞行平台,具有发射功率大、长航时、多分量、大探深、机动灵活、可移植性强等特点.利用S-ATEM系统在山东昌邑莲花山铁矿区开展了电磁探测飞行试验,并将探测结果与已知钻孔资料进行了比对,结果表明S-ATEM能够有效反映地下介质的电阻率变化,验证了S-ATEM系统的有效性和实用性.
In recent years, the use of unmanned aerial vehicle equipped with airborne electromagnetic exploration equipment has become a trend, this paper first describes the development of semi-aero transient electromagnetic system at home and abroad, and then introduced a new unmanned helicopter equipped with Semi-Aero Transient Electromagnetic Exploration System (S-ATEM) The S-ATEM system consists of a transmitting subsystem, a receiving subsystem, a data processing subsystem and a flight platform. The key technologies and system indexes of each subsystem are elaborated in this paper. The S-ATEM system adopts unmanned helicopter as the flight platform, and has the characteristics of large transmitting power, long flight, multi-component, large exploration depth, flexible maneuvering and strong portability. Using S-ATEM system in Shandong Province, The electromagnetic exploration flight test was carried out in the mining area and compared with the known drilling data. The results show that the S-ATEM can effectively reflect the change of the resistivity of the underground medium and validate the effectiveness and practicality of the S-ATEM system Sex.