- Voice intelligibility in a noisy environment
- Convenience of wearing (when integrated onto another worn article such as a helmet)
- Unobtrusive compared to a close talking boom microphone
- Waterproof and heat resistant
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.
|Model Id||Dimensions||1 kHz sensitivity||Port Location||Response||Directional||Peak Frequency||Noise Max (Input Ref.)||Noise Max (Output Noise)|
|BU-21771-000||7.92mm x 5.59mm x 4.14mm (.312in x .220in x .163in)||-45||n/a||n/a||-103 dB|
|BU-23173-000||7.92mm x 5.59mm x 4.14mm (.312in x .220in x .163in)||-39||n/a||n/a||-103 dB|
|BU-23842-000||7.92mm x 5.59mm x 2.28mm (.312in x .220in x .090in)||-40||n/a||n/a||-103 dB|
|BU-27135-000||7.92mm x 5.59mm x 2.28mm (.312in x .220in x .090in)||-45||n/a||n/a||-103 dB|