Structure-Borne Sound Sensor BS20
3 Sensor operation
II - II - 14
Revision: 1.0; Date: 2017-11-06
3.3 Using the waveguides
During testing, the sensor should be pressed against the object being tested in as vertical a
position as possible and using gentle, even pressure.
Fig. 5: Optimal contact angle for testing with waveguides
3.4 Operation via the buttons on the sensor
Measurements can be controlled via the touchscreen on the device or via the buttons on the
sensor itself.
The acoustic playback volume can be adjusted using the function buttons. Testing can also be
started and stopped. The LED lights (torches) also help with the precise location of damage
areas.
The internal thread on the sensor and the magnetic waveguide BS20-3 make it possible to carry
out quasi-stationary tests using the SONAPHONE.
90°