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Quick Details

  • Place of Origin: Hunan, China (Mainland)
  • Brand Name: GEOSUN
  • Model Number: JSGY-2
  • Power supply cabinet: 30KW~180KW
  • depth of exploration: 6300 meter Underground
  • Maximum output current: 30A
  • Amplitude measurement range: 10μV ~ 200mV
  • Operating frequency range: 3/256-8192Hz
  • Amplitude measurement error: Amplitude ≤ 100 μV, error ≤ 1μV; amplitude> 100μV, error ≤ 1%
  • Multi - channel consistency error: ≤1%
  • Outside dimensions (L x W x H): 48.7 cm x 38.6 cm x 18.5 cm
  • Input short circuit noise: ≤1uV
  • application: water\cavity\metal detector and so on

Packaging & Delivery

Packaging Details Alumium Specialized Box + Carton
Delivery Time 7-30 workdays

JSGY-2 Wide Field Electromagnetic instrument

GEOSUN Super quality low price affordable Electrical Geophysical Instrument

——The unique electromagnetic instrument in the world that only needs to measure  electric field

——First prize in the science and technology of nonferrous metals

JSGY-2 wide-area electromagnet is the latest researched, developed and new type of electromagnetic instrument in our company, the instrument is based on the R&D in our country independently, and the new frequency domain electromagnetic exploration method - "wide-area electromagnetic method" theory, combined with advanced electronics Technology and computer technology, broke through the traditional artificial source of electromagnetic law inherent bottlenecks successfully, solve the problems faced in the actual production process for customers.



The instrument integrate automation, miniaturization, low weight, energy-saving together, can be widely used in oil and gas reservoirs, shale gas, geothermal, coal mined-out area, metal, water and other detection areas.

Methods and instrument features

Method innovation: Calculate " the wide area apparent resistivity" without iterative simplification of the electromagnetic field single component expression iterations;

Wide-area observation: Can be observed in areas not limited to the far field, extending the observation range and increasing the depth of exploration;

Single component measurement: avoid the influence on measured data by traditional electromagnetic magnetic field interference, improve the anti-jamming capability of the instrument;

High efficiency: multi-frequency transmission and reception, one transmitting & multi-receiving available.

Mature Technology:theory and equipment are verified by a lot of field engineering, the effect is significant.


Transmitting system

The wide area electromagnet transmitter system includes a portable signal controller and power supply cabinet, mainly used for wide area signal transmission. The system is designed with strict seperation of the strong electric system and the control system, which not only ensures the safety of the operator but also reduces the influence of the strong electric system on the control system.

Signal controller's advantages:

→ Intergrate signal synthesis and measurement.  

→ High precision clock source and digital signal synthesis technology ensure accurate transmission signal frequency.

→ Comes with calibration signal generator, consistency calibration on different instruments and channels can be done at anytime and anywhere.

→ Controller is strictly isolated from the strong electric system to ensure operator's safety.

→ Controller with full Chinese menu, easy to learn and operate


Power supply cabinet

Power supply cabinet is mainly used to complete the power's rectification, boost, pressure regulating and signal invert. Power supply cabinet can also be optional with 30,100,200kW.


→ Set boost, regulator and inverter in one.

→ Using current synchronous measurement technology, reduce the system's loss and complexity without steady flow.

→ High  transmission efficiency, equipped with signal controller, multi frequiency transmissiono can be completed at one time.

→ With perfect overcurrent and overvoltage protection function.

→  Can choose any three-phase generator inside China.


Receiving system

JSGY-2 wide-area electromagnetic receiver is mainly used to complete the 8 electric field signal acquisition and data processing.


Multiple frequency measurements can be done at one time, with high efficiency.

8 independent 24-bit high-speed AD and a number of 32-bit fast processor make different channel signals achieve the synchronization of high-precision collection.

Full reinforcement, high-performance military notebook is used, with features of touch screen, 360-degree rotation, highlight and so on.

Connector is durable, and easy to plug.

Strong military safety box provides effective three anti-security for the instrument (black and yellow optional).

Receiver power supply mode: dedicated battery box, 12V car battery and 220V electric supply optional.

With lots of Built-in filtering technologies, can effectively suppress the interference of power and harmonics.

Filter and manage the data withh unique algorithm, suppress the random interference effectively.

Real-time display of time-domain waveform and frequency domain data.

With FFT spectrum analysis function, can directly analyze the scene interference.

Instrument comes with powerful data processing and processing functions.


JSGY-2 Parameters
Technical Parameters
Transmission system technology index
Signal controller
Operating frequency range3/256-8192Hz
Frequency accuracyAbove 10-3
Frequency stabilityFrequency stability Above 10-4 within  7 hours
Power supply cabinet (30KW)
Maximum output voltage1000V±10%
Maximum output current30A
Operating temperature-10- +50℃
Storage temperature-40- +60℃
Receiver Specifications
Working Frequency

0 frequency band {(3/256) Hz, (3/128) Hz, (3/64) Hz, (3/32) Hz, (3/16) Hz, (3/8) Hz, (3/4)Hz},

1 frequency band {(1/64)Hz,(1/32)Hz,(1/16)Hz,(1/8)Hz,(1/4)Hz,(1/2)Hz,1Hz)},

2 frequency band {(3/4) Hz,(3/2) Hz,3Hz,6Hz,12Hz,24Hz,48Hz},

3 frequency band{1Hz,2Hz,4Hz,8Hz,16Hz,32Hz,64Hz},

4 frequency band{96Hz,192Hz,384Hz,768Hz,1536Hz,3072Hz,6144Hz},

5 frequency band{128Hz,256Hz,512Hz,1024Hz,2048Hz,4096Hz,8192Hz}

Amplitude measurement range10μV ~ 200mV
Amplitude measurement errorAmplitude ≤ 100 μV, absolute error ≤ 1μV; amplitude> 100μV, relative error ≤ 1%
Multi - channel consistency error≤1%
Frequency attenuation50Hz ≥ 80Db      100Hz ≥ 80dB       150Hz ≥ 80dB
Input resistanceFrequency ≤ 1024Hz, input impedance ≥ 5MΩ;
Input short circuit noise≤1uV
Channel isolation≥80dB
Outside dimensions (L × W × H)48.7 cm x 38.6 cm x 18.5 cm
Operating temperature-10- + 50 ° C
Storage temperature-40- + 60 ° C


Supporting inversion interpretation system

Wide area electromagnetic method data processing and interpretation evaluation software system consists of the system platform and the corresponding modules, the main functions is:

(1) Observation system visualization human-computer interaction management.

(2) A variety of data management, visualization and analysis tools.

(3) Wide-area electromagnetic method Electromagnetic field visualization Human-computer interaction three-dimensional numerical simulation.



Case Show

Exploration of Oil and Gas Fields

Tuha basin oil and gas resources widely electromagnetic exploration

Volcanic type reservoir is bred within carboniferous strata depression basin, regardless of position and shape, apparent resistivity interface of Rock-Permian-Triassic system divided by wide-area electromagnetic method is close to interface of seismic reflection. It is shown that wide area electromagnetic method can determine oil and gas structure and supplement earthquake insufficient in area where seismic effect is poor.


                                                                   Wide area apparent resistivity interface

                                                                                           Seismic reflection interface


company profile


 Model NO. Appliction Depth Frequency accuracy Data inversion interpretation system
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    Metal ore, water and other detection areas. 100-200M     error≤ ± 0.1%     Not configured
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   Oil and gas reservoirs, shale gas, geothermal, coal mined-out area, metal, water and other detection areas. 2000-3000M   error≤ ± 0.1%   Configuration
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 Find  the dam leakage or piping inlet position quickly for flood control and disaster prevention100-500M    error≤ ±1meter 
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Hunan Geosun High-tech Co. Ltd. was established in 2002 with registered capital of RMB 50 million yuan by He Jishan, the world-renowned geophysicist and academician of CAE . We are mainly engaged in the following business,such as research and development, production and sales of resource exploration equipment and directional acoustic equipment, mineral resources exploration, engineering geological investigation, engineering testing, and information security services business .Over 15 years of ups and downs, We have built the base of modern high-tech enterprise covering 25,000 square meters with office, research and development and production.So far we have totally completed more than 50 national and provincial scientific research projects, over 40 patents. At present, our company have 6 products with independent intellectual property rights:
resource exploration equipment—Dual-frequency IP instrument,portable large-depth IP instrument, multi-frequency electromagnetic instrument and Wide Field Electromagnetic instrument, pseudo-random signals IP instrument; flood prevention detecting equipment—Levee Piping and Seepage Detector.We have contributed tremendous strength in economic and social development to our country in the field of groundwater exploration, mineral exploration, oil and gas exploration, flood prevention and riverbank protection. We also expand overseas market actively, and our equipment and service are widely applied in Chile, Peru,Australia and Italy,so we made remarkable achievements.Today we sincerely looking forward to provide you with the most advanced products and excellent service. Cooperating with Geosun, creating the brilliancy together!



1.Are you manufacturer or trading company?
   We are the manufacturer, with own export license.

2.What is the depth of the underground exploration of the instrument?
   Our most advanced instrument exploration underground depth of up to 7 km.

3.Is it difficult to operate and make the graph?
   This instrument is easy to operate and has professional personnel to train.

4.What is the MOQ?
   1set/ sets

5.Guide for After-sale Service
   The instrument is guaranteed for a year, with lifelong service

6.What are the advantages of your company?
   We have many professionals, technical personnel, we can provide high quality products,more competitive

   prices and good after-sale service!




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