The BU Series piezo-ceramic accelerometer has output from 20 Hz to above 10 kHz, and is used primarily as a contact microphone for high noise environments. It may also be used as an accelerometer with lightweight structures.
As a contact microphone, the BU may be worn on the throat, or touching a bony part of the head (top, temple, or mastoid bone).
BU has been integrated into helmet designs for radio communication for military and emergency services.
Below the BU serie models :
| Model||Picture||Thickness||Sensitivity @1KHz||DC Supply (Vdc)||Max. Current Drain (uA)||Nom. Output Imp. @1KHz (Ω)||"A" Weighted Noise (dBre. 1V)|