Traditionally smaller diameter microphones have lower sensitivity (0.25 – 2 mV/Pa), which does not allow for lower amplitude testing. Compared to other ¼" mics, the 378A08 has an extremely high sensitivity rating of 50 mV/Pa, which allows it to a obtain noise floor specifications comparable to larger ½" (12mm) diameter microphones.
The 378A08 is multiple-field capable. Its reduced size minimizes its impact on the sound field, especially at higher frequencies, resulting in accurate data even when used in a sound field other than free-field, which it was designed for. This saves users the cost of needing to buy multiple sensors for different types of sound fields.
Model 378A08 can be used for many low noise test applications including cabin noise testing for automotive and aerospace, electric vehicle testing, component testing, computer fan/disk drive/white goods noise testing, and general low noise tests requiring a small profile sensor.
For more information visit https://www.pcb.com/products?m=378A08. For technical inquiries and application support, please contact Mark Valentino at mvalentino@pcb.com or (800) 828-8840.
About PCB Piezotronics
PCB manufactures vibration, pressure, force and strain, shock, and acoustic sensors used by design engineers and predictive maintenance professionals worldwide for test, measurement, monitoring, and control requirements. Our sensors support testing in aerospace and defense, automotive, transportation, civil engineering, and general R&D industries. Primary sensing technologies include piezoelectric (ICP®), piezoresistive, and capacitive MEMS. With a worldwide customer support team, 24-hour SensorLine, and a global distribution network, PCB is committed to Total Customer Satisfaction. PCB Piezotronics is a wholly-owned subsidiary of Amphenol Corporation. More info at www.pcb.com. For more information about Amphenol, visit www.amphenol.com.