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七十年代末期,我队由单一磁测发展为拥有磁、能谱和电磁等方法的航空综合物探测量。目前,航磁测量使用光泵或核旋磁力仪,记录灵敏度分别为0.25γ和1γ,测量精度为±2γ左右。航空伽傌能谱测量使用四道(总计数、钾、铀和钍)能谱仪,探测器NaI晶体总体积达49.2升,可以测出的含量变化:铀—1ppm当量铀;钍—2ppm当量钍;钾—0.4％。航空电磁测量,使用三频(520HZ、2020HZ和8020HZ)补偿式航电仪;噪声水平20ppm。
In the late seventies, our team has evolved from a single magnetometer to an aeronautical composite geophysical surveyor possessing methods such as magnetism, spectroscopy and electromagnetism. At present, aeromagnetic measurements using optical pump or nuclear spin magnetometer, recording sensitivity were 0.25γ and 1γ, measurement accuracy of ± 2γ or so. Aeronautical Gamma Spectrum Spectrometry Measurements of the total volume of the detector NaI crystal using a total of 49.2 liters of four (totalized, potassium, uranium and thorium) energy dispersive spectroscopy were measured: uranium-1 ppm equivalent uranium; thorium -2 ppm equivalent Thorium; Potassium - 0.4%. Aeronautical electromagnetic measurements, the use of tri-band (520HZ, 2020HZ and 8020HZ) compensated avionics; noise level of 20ppm.