Table of Contents
Advertisement
Overview of the SONOCHEK System
2.5.3
Functional principle
Ultrasonic signals are generated in a multitude of processes in different frequency ranges,
which are made visible and audible with the SONOCHEK.
Two types of ultrasound are distinguished between with respect to the use of sensors for
investigations with the SONOCHEK:
Airborne sound – the sound waves spread through the air; detectable when looking for leaks
on compressed air lines, for example
structure-borne sound – the sound waves occur during mechanical processes, spread in solid
bodies and can be used, among other things, to detect bearing wear
The SONOCHEK can be used to evaluate ultrasonic signals, which inevitably occur during the
considered processes (leaks in compressed air or vacuum systems). Alternatively, the
SONOCHEK can detect ultrasonic signals, which are actively generated by a corresponding
transmitter. This procedure is used, for example when measuring the leak tightness of pressure-
free systems and containers.
Averaging the ultrasound in very small time intervals produces the representation of the level
profile. The level data is output as a level profile. The spectra are calculated directly from the
high-resolution ultrasonic data and displayed as spectra over time (spectrogram). Up to 5
additional level values can be output via the display according to individual requirements.
At the same time, the signals are made audible via the speakers integrated in the unit or via
headphones (for working in areas with high ambient sound levels). The volume can be
controlled via buttons on the device or on the sensors.
For the documentation, voice memos can be recorded and text comments can be stored for
each measurement. Furthermore, photos can be taken on which the damage points can be
marked.
PDF reports can already be created in the device by using the stored data and the additional
information. It is possible to transfer all data (individual data as well as reports) to other devices
via the USB interface for further processing.
SONOCHEK 09.2018
SONOCHEK
19
Advertisement
Table of Contents
