The VIBSIST-20 is an excellent reflection / refraction source because it obtains equivalent depth or better than would explosives while maintaining a higher resolution and an increased productivity.
The high S/N Ratio is achieved by a signal energy of 10 kJ over a period of 25 seconds or the equivalent of 25 impacts per second. It is the accumulation of these low energy impacts, which leads to significant depth penetration.
The VIBSIST-20 achieves a better first break detection than a sledgehammer. The improvement is obtained by accumulating higher impact energy over a period of time. The signal to noise ratio increases, through a fine tuned deconvolution of the signal, in order to minimize the correlation noise.

INCREASED PRODUCTIVITY

Significant productivity gains are obtained because the VIBSIST-20 is not dependent on the energy of the operator using a sledgehammer or on the lengthy preparation needed to use explosives, such as drilling hole, filling them in, setting up the wires, etc.
For refraction applications, the VIBSIST technique is at least 5 to 10 times faster than using a sledgehammer and for reflection more than 10 to 20 times faster than using explosives, depending on the operator. With the VIBSIST-20, you can finish the job quite sooner than with alternative methods.

MODULAR AND PORTABLE

The reduced number of modules makes the VIBSIST-20 portable and highly mobile. It allows jobs to be done faster and in difficult field conditions that would otherwise have been almost inaccessible such as mountainous regions, under-ground mines, confined areas, etc. May be powered from mains, batteries or generator.

SURFACE WAVE CAPABILITY

The VIBSIST-20 can be used to produce and measure surface waves, which can be processed and analyzed.

The VIBSIST-20 produces high frequency content (beyond 2500 Hz) while achieving significant depth penetration.

The high frequency content of the signal emitted by a seismic source tends to decrease when the power of the source increases, which makes higher resolution and wide investigation range difficult to achieve simultaneously.

The investigation range can however be increased with little or no expense of resolution if the signal energy is built over time, rather than being emitted as a short high-power burst.

ENVIRONMENTALLY FRIENDLY

The VIBSIST-20 is an environmentally friendly seismic source. It is a nondestructive alternative that does not create environmental pollution such as chemicals, sound, etc.

MECHANICALLY RELIABLE

The VIBSIST-20 incorporates and up-grades standard rock breaker equipment commonly used in the construction industry. The many thousands of impacts per day used by the Swept Impact Technique require a rugged electro-mechanical hammer that is already well proven and that also meets established environmental (sound) standards.

COMPATIBLE WITH MANY SEISMOGRAPHS

The VIBSIST can be used with many seismographs. A correlator is required as well a large enough memory per channel. Compatible seismographs include either the GEODE or StrataVisor NZ with their Windows NT operating system for real-time analysis and preferably their 64,000 samples per channel capability or a StrataView with a networking card in a Post-Processing Mode.

INTEGRATED WITH VSP SURVEYS

The VIBSIST-20 is ideal for VSP surveys. It generates enough energy to be used with borehole seismic systems at depth of 250 meters or less..