TEM Magnetic Survey Instruments Transient Electromagnetic For Water

Magnetic Survey Instruments for Water and Metal Mining

Transient electromagnetic method (TEM) is also called Time domain electromagnetic Method (TEM). It transmits a electromagnetic pulse into the ground by using an ungrounded loop or ground wire source. During the interval of the magnetic pulse, a coil or ground electrode is used to observe the secondary eddy current field.

Simply put, the fundamental principle of TEM is the law of electromagnetic induction. The decay process is generally divided into early, middle and late stages. The early electromagnetic field is equivalent to the high-frequency components in the frequency domain, which attenuates quickly and has a small skin depth. While the late component is equivalent to the low frequency component in the frequency domain, slow attenuation, large skin depth. The geoelectric characteristics of different depths can be obtained by measuring the change law of secondary field with time in each time period after power failure.

Application:

1. Surface detection of aquifers, fault water bearing, coal seam structure and subsidence

2. The water storage structure inside and outside the mining area and in front of the header is detected downhole

3. To detect the depth and occurrence of good conductive ore body, and to detect the structure of ore accumulation

4. Detect the old kiln and its water content

5. Engineering exploration and environmental exploration

6. Oil and gas exploration and so on

Techenical Specification

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Chongqing Gold Mechanical Electrical Equipment Co. Ltd. has been actively involved in the design, development, and manufacturing of geophysical exploration equipment for over four decades. Our expertise encompasses various techniques used to capture images and map subsurface features and structures such as minerals, oil and gas reservoirs, groundwater, and geological formations.

At present, our company manufactures a diverse range of equipment that encompasses resistivity meters, seismic receivers, magnetic instruments, borehole loggers, and various other geophysical sensors. Additionally, we offer geotechnical instruments such as pile testers and drilling machines.

In collaboration with geologists, geophysicists, and other domain experts, we design and develop instruments that cater to the unique requirements of our clients. To maintain our leading edge in the market and keep up with technological progress and scientific advancements, we continuously invest in research and development to ensure that our equipment is accurate, reliable, and efficient.