MAE - Model ESP3 -Borehole Seismic Source

A 3-in-1 single-cable of 1.27 cm diameter, 50 mt length, is used to manage activation of reversible spring hammer, trigger geophone and air for fixing mechanism. System is entirely housed on cable reel for an overall extremely massiveness, easier transport and handling. High efficiency of ESP3 is further increased by lack of batteries, which makes system more light and free from the need of electrical power for its functioning. Once properly anchored hammer to hole wall, it is possible to generate wave by pulling cable upwards, and once performed first energization, during release phase it is possible to perform wave reverse phase. Start of recording is done automatically at the time of impact due to trigger system integrated in the hammer.

• Operating depth 50 m 
• Diameter: 7cm 
• Pipe diameter: 80 mm to 110 mm
• Generates P and S waves
• Single cable that includes: trigger + Kevlar tow cable + pressurization tube
• Compact and easy to transport, the entire system is housed on the reel
• It does not require any battery to operate, no autonomy limitations
• Compressed air anchoring system (manual pump supplied)
• Trigger connector, pressure gauge, pressurization valve and depressurization sensor on front panel of the cable reel
• Can be used in holes without the presence of water to avoid mechanical attenuation.

• Seismic Down-Hole/Cross-Hole