Transient Electromagnetic Method (TEM) is a kind of
time-domain electromagnetic method , which uses ore and underground water’s
conductivity and magnetoconductivity difference as main substance base, then
applies non-earthing loop or earthing line source to send first pulse magnetic
field to ground according to electromagnetic induction theory; Then in the gap
uses coil or earthing electrode to observe second eddy field, and also study
the space and time spread laws to search underground water and solve other
geological problems.

 

1. Main Function:

1. Detecting various metal and non-metal ores, underground water,
underground water-filling karsts and steep dip geological formation;

2. Searching different geothermal
resources, oil-gas field census and exploration in high-resistance

3. Widely be applied in coal bed and
coal goaf area and water-filling area detection;

covering area (like carbonate rock, igneous
rock and frozen soil covering area), etc.

 

1. Industrial PC is as main controller and
Windows as control panel, with high automatization degree;  

2. The power supply working method is “Big
currency small coil”, and it first realizes 200A big currency continuous
square-wave power supply in the world;

3. The display is
reflective LCD, the power consumption is extremely low, so we can use it in the
sunshine, especially applicable in field open-air environment;

4. Use large capacity electronic disk as memory
instead of hard-disk to make sure the security of equipment even in field
strong vibration transportation;

5. Multiple anti-jam technology to make detect and
explanation result more accurate;

6. Receiver has
super low noise preamplifier; you can choose proper stacking times at random to
guarantee measurement accuracy and wide dynamic;

7. Advanced
interpretation software system: include half-space interpretation software
system for ground work and full-space interpretation software system for
underground work (coal mine tunnel, tunnel, military affairs etc.)

 

3. Technical
Specification:

Receiver:

1.Whole domain data acquisition, sampling rate is changeable: 1μs, 4μs, 16μs

2.16 bits, 1M/S, A/D converter adds real time floating-point amplify, dynamic
range: 140dB

3. Max. sampling delay time range: 64ms

4. Resolution: 0.1μV

5. Memory: 256M

6. Hard disk: 40G

7. Interface: USB, parallel port, serial port, network card

8. Display: Colorful high brightness TFT 800*600 lattice

1. Currency intensity (A): 25, 50, 100,
200

2. Currency pulse width (ms):10, 20, 40

3. Weight (kg): 2