Accudata has launched a new seismograph model which it says is specifically designed for the ground engineering market.
According to Accudata, most seismographs are designed primarily for use by the quarrying industry for recording a few seconds worth of data after being triggered by a quarry blast. A secondary mode enables continuous recording needed for long-term environmental recording such as is often required during civil engineering works, but the company says that choosing the right mode and software can cause issues in this application.
The GVM1 has been designed specifically for monitoring groundborne vibration arising from activities such as piling, breaking and compaction. The aim was to create an instrument that is easy to use with unambiguous operation, as well as straightforward software.
The GVM1 is supplied in a tough weatherproof Peli-Storm case. The tri-axial geophone sensor is taken from the case and placed in position. A single button switches on the GVM1 and a high resolution colour touch screen guides the user through the set-up process to start and stop recording. Data is written onto the instrument’s SD card, which can be removed from the seismograph and plugged into a PC to bring up a dialogue box showing all the recorded event data for archiving or printing out via the software.