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Conventional

Conventional Electrical Workstation

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GT-CEW conventional electrical workstation, which combines mature AC excitation polarization (frequency domain excitation) and DC excitation polarization (time domain excitation), uses 32 bit A/D high speed oversampling recording technology, modern digital signal processing technology, embedded real time operating system technology, and large-scale field programmable array logic technology. The new generation of electrical apparatus, such as the alternating current induced polarization method and the DC induced polarization method, is developed by the latest electronic technology. The following figure shows the complete GT-CEW conventional electrical workstation, including the GT-CEW time frequency excitation instrument host, the handheld telemetry terminal, and the MSU-10A transceiver cascade electrode converter.

The system uses the GT-CEW time-frequency excitation instrument as the measuring and controlling host (hereinafter referred to as the GT-CEW host). Through the selection and matching of MSU-10A, MSU-4A, MSU-10B, MSU-4B, MSU-24B and other different multi-channel electrode converters and matching cables, the two dimensional ordinary high density resistivity measurement, high density DC excitation measurement and high density phase excitation (high density phase excitation) are realized. Effective IP test method and dual frequency IP measurement.

Applications:

The instrument can carry out all conventional electrical testing, and can carry out two dimensional and three dimensional high-density electrical testing. The main purposes are as follows:

◆Metal mineral exploration;

◆Coal mine gob detection;

◆The detection of unfavorable geological bodies such as karst, cavity, fault and fractured zone.

◆The investigation of groundwater;

◆Archaeology;

◆The detection of the scope of the garbage buried field;

◆The leakage and hole detection of the dam and the embankment of the reservoir and river.

 Product Features:

◆Both the time domain and the frequency domain dual domain IP instrument, which has the function of the conventional DC exciter, also has the function of the single frequency IP (phase excitation) and the dual frequency AC exciter.

◆The measurement parameters are voltage, current, apparent resistivity, mean square error, natural potential, self electric gradient, visual polarization, video dispersion, apparent phase, apparent phase difference, metal factor, half failure, attenuation, excitation ratio, deviation degree, grounding resistance and voltage attenuation curve (i.e. time domain IP data).

◆High power supply power, wide range, high precision measurement - the power supply capacity of up to 9000W, the ultra wide voltage input range of 200Vp-p, the repetition precision of 1uV potential, high precision of small signal measurement using analog and digital multistage high precision filtering, signal enhancement technology and strong noise suppression technology, so that the instrument can be better. It is applied to work in high resistivity area to obtain more stable and accurate measurement results.

◆High speed full wave column acquisition and storage - both the emission current and the receiving potential synchronize full waveform acquisition with the sampling rate of 1kHz, and can monitor the free interference in real time in real time. In the later period, the total wave potential can be calculated by two times of polarizability at any time through the upper computer software.

◆Open field direct strong light visible - with high brightness 24 real color LCD screen, clearly visible under direct sunlight, all Chinese man-machine interface, collection parameters, data display and storage, all kinds of curve drawing and so on fast and intuitive.

◆Lightweight and flexible - the function of high power transmission and high precision receiving, small volume and light weight; with "three pole B", used in joint section method and joint sounding method, can automatically measure Rho SA and Rho SB, without manual switching, improve measurement efficiency; can check the ground condition of AB electric pole and MN electrode at any time, convenient and convenient Use.

◆Super large capacity intelligent battery - the instrument has imported intelligent lithium battery, which can read the information of temperature, capacity, health state and so on. After full electricity, it can continue to continue for 16 hours.

◆Self-renewal and self-examination. After the device is copied from the USB drive, the latest installation can automatically update the latest application. The intelligent diagnostic program can quickly and accurately test the voltage, polarizability and current collection of the instrument.

Performance Parameters:

Model

GT-CEW

 

 

 

 

 

 

 

 

Host

Main Control Unit

Embedded Linux real time system

Voltage Source

±100V32 bit A/D

Measurement of Voltage Resolution

5nV

Measuring Voltage Precision

Vp1mV, 0.1%; Vp1mV,±1uV

Measurement of Phase Accuracy

Phase100mrad,±1mradPhase100mrad,≤0.1%

Measurement Accuracy of Apparent Polarizability

relative error±0.2%

Current Measurement Range

0 -6000 mA32 bit A/D

Measurement of Current Resolution

10nA

Measuring Current Accuracy

Ip10mA,±0.1%; Ip10mA,±2uA

Sampling Frequency

1kHz

50Hz Power Frequency Interference Suppression

140dB

SP Compensation

±100V (Full range real time automatic tracking digital compensation)

Battery Capacity

14.8V 13Ah(Can work 24 hours continuously, can work outside 12V battery)

Size

26 x 17.3x 10.6 cm

Working Temperature

-10~60

Weight

1.5kg

Engineering Case:

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