The vibrator produces programmable high frequency shear wave signals (5 to 320 Hz) with horizontal orientation. The source is most suitable on paved roads and ideal for urban areas. Depth penetration of this SH vibrator is about 50 to 100 m.

The source consists of a moving mass driven by a cascaded linear motor. Both elements are fully cased and transfer the source energy into the ground by means of frictional coupling. The unit is powered by car batteries providing additional dead load improving the coupling.
An adjustable pneumatic suspension ensures a maximum of seismic energy under all surface conditions.

ElViS III S8

Signal Generator

Specifications

• Drive system: cascaded linear motor
• Power supply: 12 V or 24 V DC
• Peak force: about 450 N
• Frequency range: 5-320 Hz
• Source weight: about 35 kg
• Total weight: about 130 kg

Source Casing

Battery Box

Dead Load Suspension

Processed CMP SH-Vibrosection

Click on the figure to enlarge it

Data by courtesy of BGR.
Processing done with ReflexW.