Sensor Measures Sound Pressure Levels of Airbag Deployment

January 31st, 2008

PCB Piezotroncs’ Model 106M160 is a high-intensity ICP acoustic microphone, designed for measuring airbag deployment noise and total impulse of an inflation event occurring inside of an automotive cabin. The unit offers sensitivities of 79.8 mV/kPa (550 mV/psi); a measurement range of 189 dB (57.2 kPa); 96 dB (1.4 Pa) resolution; and frequency response of 0.05 Hz to 20 kHz filtered output, tailored to the human ear. It survives higher intensity signals, up to 216 dB, that would damage most condenser microphones beyond their 3% distortion limit. The rugged, hermetically sealed, piezoelectric pressure microphone also features ICP output, for ease of use and reduced setup time.

Entry Filed under: Safety Test, Sensors