WTEM-2J receiver has to work together with a WTEM-1D transmitter to finish medium-deep or deep sounding; in the mode of GPS synchronization, a WTEM-2T/GPS synchronized controller is needed to synchronize WTEM-2J receiver and the transmitter.
PTT-40A Receiver Antenna & Adapter is a specific antenna (or receiving coil) designed for TEM system receiver, which consists of an detached antenna and adapter, with large equivalent area and high signal-to-voice ratio, easy for field layout and free from limitation of landform.
Loop applicable may be central loop or coincident loop, one TEM system transmitter working together with one TEM system receiver; or be large loop, one TEM system transmitter in association with several TEM system receivers. According to differentgeological situations, user could choose an appropriate system to finish surveying tasks of quick general survey, 3D graph coloring up, deep mine finding.
It is mainly used for surveying metal mine, coal-mine, oil and gas field, geothermal field, and applies in hydrology and engineering geological prospecting as well.
|Transmitting voltage: ≤200V|
|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|
|Working temperature: -10°C~+50°C|