GD-4 magnetotelluric instrument is based on the mature magnetotelluric theory, the random signal processing technology, embedded real-time operating system technology, large-scale field programmable logic array technology, 32 A/D high precision and high speed recording technology and the latest electronic technology, electromagnetic high frequency earth (HMT), audiomagnetotelluric (AMT) and magnetotelluric (MT or LMT) as one of the wide band magnetotelluric instrument.
Wide band magnetotelluric instrument can use the high frequency magnetotelluric sounding (100kHz-10Hz) to carry out a few meters to a kilometer in the shallow depth of the human activity is the most active exploration, also can use audio frequency magnetotelluric sounding (10kHz-0.1Hz) or long period magnetotelluric (1kHz-1000s) to carry out deep research of macro geological problems.
The natural source and artificial source mixed mode -- the aplication of magnetotelluric sounding principle, which can be carried out natural source magnetotelluric sounding, can also carry out artificial source electromagnetic sounding, or a mixture of the two acquisition.
Tensor and scalar can be observed, can be carried out for fast screening of scalar measurement, can also carry out two or three dimensional geological structure tensor measurement.
Base and Precious Metals Exploration
Oil and Gas Exploration
Environmental and Engineering Studies
Deep Crustal Research
Earthquake Prediction Research
Number of channels
4 channel (channel 2 Channel 2 electric, magnetic)
32 bit high speed ADC maximum sampling rate of 192ksps)
160dB system, 130dB@24kHz moment
DC to 92kHz
10 V PP @ 0dB;
<5nV/ V Hz@24kHz, 36 dB
electric magnetic channel >10MOhm
0dB, 12dB, programmable 24 dB, 36dB
26 x 17.3x 10.6 cm
instrument gain, dynamic range detection,
Embedded operating system
6.5 inch industrial LCD
1200cd/m2, visible light
USB2.0 high-speed transmission
12.6V 13.4Ah, 16 hours of continuous work
external battery or 12V adapter work
1. M100K magnetic sensor
2. M10K magnetic sensor
3. The TM4000 transmitter
4. ZxMT magnetotelluric pretreatment software