Walesch Electronic GmbH is a Swiss-based company with over 29 years (since 1985) of experience in the field of vibration measuring instruments.

The company makes a range of analogue and digital VIBRAS models which are most suitable for measuring vibration originating from blasting, pile driving and traffic. These VIBRAS modular built instruments are constructed on an open architecture computer concept which provides the facility of accommodating future technological developments.

A VIBRAS systems consist of two main components; the sensors and the evaluation instrument. The sensor function is to measure the vibration and to register data while the evaluation instrument collects and evaluates the sensor data, control the sensors and performs the necessary user interface related functions.

The evaluation instrument automatically accumulates all resulting event data in RAM memory which, if required, are subsequently transferred to a hard disk of the instrument or to a higher level computer. The VIBRAS also offers a facility for the later evaluation of measurements which have previously been stored on the hard disk.

The VIBRAS systems conform to precision class 1 according to the DIN 45669. The compact design of the equipment is contained within a robust and portable case, (IP-65). An on-board pin-in/switch-on dialogue system allows a trouble-free and simple installation by the user. Up to 16 triaxial sensors may be connected to a single VIBRAS evaluation instrument, thereby enabling simultaneous monitoring at 16 independent locations, each in three orthogonal directions, i.e. 48 channels.

The VIBRAS is ideal for registration of short duration events as well as measurements over extended periods of time, such as blasting, pile driving and traffic. lts printer permits an informative representation of vibration data in both graphical and tabular formats. Remote control and data transfer of all data between the evaluation instrument and a computer (IBM PC or Macintosh) can be achieved either directly, via an RS232 connection, or via modem and standard telephone lines. Remote control is functionally equivalent to operating directly with the evaluation instrument.

The above together with fully controlled trigger and alarm facilities make the VIBRAS an ideal System for unattended monitoring of vibration.

Please note:

The VIBRAS is primary designed for the construction industry such as
. mine or quarry blasting
. pile-driving into the ground
. survey of traffic emissions


The VIBRAS is not designed for seismic exploration or earthquake measurement.