Electromagnetic survey lab
Generate the radio wave. Watch the earth answer.
Eight electromagnetic and electrical survey methods, each with a live forward model you can drive from the browser — and a real oscillator that plays the operating frequency back to you, scaled into the audible band.
- 8
- Methods modelled
- DC - 1.5 GHz
- Spectrum covered
- 0.1 - 100 km
- Depth range
- Live
- Browser physics
The methods
From switched DC to gigahertz radar
CSEM
Controlled-Source Electromagnetics
Marine and land resistivity mapping with a towed transmitter dipole
0.05 - 10 Hz · 500 - 4,000 m
GPR
Ground Penetrating Radar
High-frequency radio pulses for centimetre-scale shallow imaging
10 MHz - 2.6 GHz · 0.1 - 30 m
AEM
Airborne Electromagnetics
Helicopter and fixed-wing conductivity mapping at survey scale
300 Hz - 200 kHz · 20 - 400 m
MT/AMT
Magnetotellurics / Audio-Magnetotellurics
Natural-field soundings from the near surface to the mantle
10 kHz - 0.001 Hz · 50 m - 100 km
GsAMT
Grounded-Source Audio-Magnetotellurics
A controlled transmitter fixes the AMT dead band
1 Hz - 10 kHz · 50 - 2,000 m
TEM/TDEM
Transient / Time-Domain Electromagnetics
Switch the current off and watch the ground decay
Equivalent 1 Hz - 100 kHz · 20 - 1,500 m
RIM/BHR
Radio Imaging / Borehole Radar
Hole-to-hole radio tomography of the rock in between
50 kHz - 30 MHz · 10 - 300 m between holes
IP/ERT
Induced Polarisation / Electrical Resistivity Tomography
Galvanic current injection for resistivity and chargeability sections
DC - 10 Hz · 2 - 500 m
Not sure which method fits your target?
Send us the target, depth and terrain. We will model it and come back with a survey design and an indicative plan.
Request a survey