ATEM-6 Transient Electromagnetic Prospector
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1. First apply 200A large currency square wave to supply power continuously. It uses portable power supply to realize big currency. 2. The power supply working method is “Big currency small coil” (25 times, 25m transmitting coil), the prospecting depth
Transient
Electromagnetic Method (TEM) is a time-domain electromagnetic method , using
ore and underground water’s conductivity and magnetoconductivity difference as
main substance base.
Electromagnetic Method (TEM) is a time-domain electromagnetic method , using
ore and underground water’s conductivity and magnetoconductivity difference as
main substance base.
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.
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.
Application:
1.
Search geothermal resources, oil-gas field census and exploration in high-resistance
covering area (like carbonate rock, igneous rock and frozen soil covering
area), etc. The maximum prospecting depth can exceed 1000m.
Search geothermal resources, oil-gas field census and exploration in high-resistance
covering area (like carbonate rock, igneous rock and frozen soil covering
area), etc. The maximum prospecting depth can exceed 1000m.
2.
Detect various metal and non-metal ores, underground water (including carst
water), geological disaster survey and steep dip geological formation;
Detect various metal and non-metal ores, underground water (including carst
water), geological disaster survey and steep dip geological formation;
3.
Especially applied in coal bed and coal goaf area and water-filling area
detection;
Especially applied in coal bed and coal goaf area and water-filling area
detection;
Main Advantages:
1. First apply 200A
large currency square wave to supply power continuously. It uses portable power
supply to realize big currency.
large currency square wave to supply power continuously. It uses portable power
supply to realize big currency.
2. The power supply
working method is “Big currency small coil” (25 times, 25m transmitting coil),
the prospecting depth can reach 1000m, which is specially fit for field
terrible working condition and can improve working efficiency obviously.
working method is “Big currency small coil” (25 times, 25m transmitting coil),
the prospecting depth can reach 1000m, which is specially fit for field
terrible working condition and can improve working efficiency obviously.
3. Industrial PC as
main controller and Windows as control panel.
main controller and Windows as control panel.
4. The supply currency,
power pulse width, sampling rate and stacking folds etc. all set by English
menu; computer large capacity storage space guarantees large-capacity density
sampling.
power pulse width, sampling rate and stacking folds etc. all set by English
menu; computer large capacity storage space guarantees large-capacity density
sampling.
5. Good security. The
receiving circuit applies high performance CMOS chip assemble promoted latest
to make total unit perfect function.
6. High sampling rate.
7. Multiple anti-jamming technologies.
8. Advanced interpretation software system.
receiving circuit applies high performance CMOS chip assemble promoted latest
to make total unit perfect function.
6. High sampling rate.
7. Multiple anti-jamming technologies.
8. Advanced interpretation software system.
Main
Parameters:
Receiver
1.Sampling rate:
1μS
4μS 16μS 2.A/D converter:
16Bit 1M/S
3. Dynamic range: 140dB
4. Background noise: <1μV
5. CPU: Pentium IV 500M , low power consumption
6. Memory: 128M
7. Hard-disk: 40G
8. Interface: USB, parallel port, serial port, network card
9. Display: Colorful high
brightness TFT 800× 600 lattice
10. Main amplifier: 1 time, 10
times, 100 times, 1000 times
11. Stacking fold: 1-9999
12. Channel: 2
13. Measure channel: any programming
14. Pass band: 0-400kHz
Transmitter
1. Transmitting
currency strength (A): 1-60 adjustable
2. Currency frequency (ms): 225, 75, 25, 12.5, 6.25
3. Max. transmit power (KW): 12
4. Output voltage (V): 12-96
5. Power-off time (us): 1-300
6. Delay time range: 1us-160ms
7. Input voltage (V): 12-96 battery
8. Transmitting wave form: bipolar rectangle wave
9. Transmitting coil: 5*5 single turn-300*300 single turn
Parameters:
Receiver
1.Sampling rate:
1μS
4μS 16μS 2.A/D converter:
16Bit 1M/S
3. Dynamic range: 140dB
4. Background noise: <1μV
5. CPU: Pentium IV 500M , low power consumption
6. Memory: 128M
7. Hard-disk: 40G
8. Interface: USB, parallel port, serial port, network card
9. Display: Colorful high
brightness TFT 800× 600 lattice
10. Main amplifier: 1 time, 10
times, 100 times, 1000 times
11. Stacking fold: 1-9999
12. Channel: 2
13. Measure channel: any programming
14. Pass band: 0-400kHz
Transmitter
1. Transmitting
currency strength (A): 1-60 adjustable
2. Currency frequency (ms): 225, 75, 25, 12.5, 6.25
3. Max. transmit power (KW): 12
4. Output voltage (V): 12-96
5. Power-off time (us): 1-300
6. Delay time range: 1us-160ms
7. Input voltage (V): 12-96 battery
8. Transmitting wave form: bipolar rectangle wave
9. Transmitting coil: 5*5 single turn-300*300 single turn
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