UNLV AGC Minivib

UNLV’s trailer mounted minivib is a high fidelity, controlled vibratory seismic source for geophysical surveys. It is capable of generating a frequency modulated signal over a range from 5 to 550 Hz.

The minivib is an environmentally ‘soft’ source, spreading its energy out in time instead of generating an area of high impact or pressure as traditional seismic sources like explosives and impulse sources. Excessive ground roll is also avoided, providing cleaner data and simplifying processing. The low environmental impact makes the permitting process easier and opens up use of the minivib in a wider range of situations.

The minivib is a more efficient acoustic projector and is able to generate a much wider frequency range than traditional oil and gas exploration vibrators. This allows both deeper exploration surveys along with high resolution engineering surveys with the same minivib.

The relatively small size of UNLV’s trailer mounted minivib allows survey lines in areas that would typically be impossible with other sources.


  • Trailer-mounted IVI T-7000W vibroseis
  • Mass and stroke optimized for surface wave testing
  • Mass and base plate convertible for shear wave applications
  • Total trailer weight: 3,800 kgf. (8,300 lb)
  • Maximum force output: 27 kN
  • Maximum holddown weight: 3500 kgf. (7,800 lb)
  • Reaction mass weight: 141 kg (311 lbs)
  • Stroke: 96.5cm (38 in.)
  • Height: 2.5 m (8 ft)
  • Width: 2.5 m (8 ft)
  • Length: 6 m (20 ft)
Mass and Baseplate