Technology of Complex Helicopter Electrical and Magnetic Exploration Equator

System features

• The system is effective both on well conducting and on insulating sections.
• The system is very simple and high-tech during transportation, installation and shooting.
• Due to the light weight of the system, shooting can be carried out at a speed of up to 170 km / h, and the shooting speed does not affect the quality of the data.
• The response values are recorded continuously, including during the excitation of the primary field.
• Unique signal processing algorithms provide high detail even in near-surface layers.
• Calibration of the system is necessary only once per departure.

Application practice

In 2010, the first survey work was carried out using the EQUATOR system. Filming was carried out in the Eastern Sayan region in July and September, as well as in the Arkhangelsk region in October; the scope of work is 1,200, 1,500 and 2,000 linear kilometers, respectively.

Below are some results of work in the East Sayan. It should be noted that the shooting conditions were extremely difficult:

• elevation difference on the route - up to 1300m
• the area of work is characterized by very low values of rock conductivity: the average value is 0.5 mS / m, and the conductivity of the objects to be searched is up to 5 mS / m

Specifications

• Dipole moment: 100,000 A * m2
• Excitation frequency: 77Hz
• Impulse Shape: Half Sine
• Receiver: three-component, accommodation - in a gondola
• Receiver Frequency Range: 77 Hz to 12 kHz
• Power Consumption: 100A (27V)

Weight and dimensions

• Tow cable length: 70m
• Gondola: 30 kg, located in the middle of the tow cable
• Transmitter: weight 150 kg, loop diameter 7.5 m, number of turns - 4
• Total system weight: 250kg