Home
>
PRODUCTS
>
Magnetic Survey Instruments
>
|
|
| Place of Origin | Chongqing, China |
| Brand Name | Gold |
| Model Number | WTEM |
Transient Electromagnetic Magnetic Survey Instruments
Transient electromagnetic magnetic survey instrument is mainly used for exploration of metal mines, coal fields, oil and gas fields, geothermal, hydrologic engineering geology, etc.
Features:
One instrument with multiple functions: this system is integrated with functions of a transmitter and a receiver, portable and simple in connection. WTEM-3Q has function of deep exploration with an external high-power TEM transmitterin cable synchronization or mode GPS synchronization mode.
High reliability, low power consumption: refined receiver and circuitry, reasonable heat dissipating system design, sealed and rugged mechanical structure, ensuring high reliability, low power consumption and convenient operation.
Remote control: Tablet PC based Bluetooth wireless communication technology enables it to control the receiver in 10 meters, such as setting parameters, starting measuring, transferring and displaying the measured results.
High anti-interference performance: program controls the filter to give accurate power supply frequency; besides, data stacking and software filtration also do good to this performance.
Flexible power supply mode: the power supply waveform with standard duty cycle (1:1) and the power supply waveform with user-defined power supply pulse width, optional, so that the instrument has a wider exploration application. width
Adjustable number of time windows: operator could set number of time windows, linear or logarithmic; crystal oscillator accomplishes timing, with stable and precise time–to-depth ratio. Sampling window arrangement is reasonable, imaging the true subsurface structure. It provides references to complex geological problems.
Multiple working mode: single-point and continuous working mode,optional.
Wide depth range prospecting: this system is equipped with high-power transmitter which could easily inspect the objects deep in meters to hundreds of meters (for shallow exploration)
Techenical Specification
|
Transmitting voltage |
≤200V3 |
|
Transmitting current |
≤50A |
|
Current measurement precision |
current range before power supply being cut off is 0~50A, display resolution is 0.01A. |
|
Power supply frequencies |
0.0625Hz, 0.125Hz, 0.25Hz, 0.5Hz, 1Hz, 2Hz, 4Hz, 8Hz, 16Hz, 32Hz |
|
Transmitting waveform |
+ON, OFF, -ON, OFF, equal width and dual polarity |
|
Turn-off delay time |
1μs~1000μs |
|
Turn-off time |
≤1.2μs (pure resistance), changing with the transmitting current and transmitting coil when connecting to the coils |
|
Damping resistance |
1000Ω |
|
Transmitting coil |
0.1km×0.1km single turn ~ 2km×2km single turn |
|
Synchronization mode |
external synchronization (cable, GPS) |
|
Power supply |
internal 12V8.6Ah rechargeable battery (or external 12V power supply) lasting for over 10 hours |
|
Dimension |
525×436×217mm3 |
|
Weight |
18.5kg |
|
Working temperature |
-10°C~+50°C |
|
|
Receiver |
|
Number of channel |
1 |
|
Pre-amplification gain |
8, 32 times |
|
Main amplification gain |
1, 2, 4, 8, 32, 64, 128 times |
|
Band-pass |
0~50k Hz (liner phased filter), full band-pass 0~400k Hz |
|
Suppression |
80dB |
|
A/D |
16 bit |
|
Min sample interval |
1μs |
|
Trace number |
≤128 |
|
Stacking times |
1~9999 time |
|
Synchronization mode |
internal 12V9.6Ah rechargeable battery (or external 12V power supply) lasting for over 10 hours |
|
Pocket PC |
Windows Mobile 6.0 system with software such as Word, Excel, etc., 320x240 true color, 64MB Flash Rom/ 64MB SDRAM/64MB 2GB CF card, able to store over 200,000 readings of sampled data,2 original rechargeable batteries |
|
Ports |
Bluetooth, infrared and serial port |
|
Dimension |
340×295×152mm |
|
Weight |
5.3kg |
|
Working temperature |
-10°C~+50°C |
Product Image
