The instrument has already been used actually in monitoring of earthquake precursors,oil development,has achiered the measurement precision of 0.1% under the enviroment of abominable measurement of field(SNR 20 dB).

• 仪器已在地震前兆监测、石油开发中得到实际使用；实现在野外恶劣的测量环境下(信噪比20 dB)取得0.；1%25的测量精度