Acoustic Testing and Certification
PCB’s complete line of 1/4", 1/2" and 1" microphones are available in two versions:
- Externally Polarized
- Prepolarized
The prepolarized type of microphone offers significant savings in signal conditioning costs. While the performance of these microphones is essentially identical to their conventionally powered ,externally polarized counterparts, the microphones and their preamplifiers are designed to interface with constant current (e.g. PCB’s, ICP®) signal conditioners.
Because ICP® signal conditioners are so widely employed for other sensor types, they are an order of magnitude less expensive than conventional microphone power supplies. The cables and connectors used with prepolarized microphones are also substantially less expensive than those employed with externally polarized microphone power supplies.
PCB® offers microphones and acoustic pressure sensors that are useful for specialty measurement applications, such as:
- PCB’s unique line of “HT” microphones and preamplifiers for acoustic characterization in environments as hot as 120 ºC/250 ºF.
- PCB® Model 377A26 Probe Microphone, high-temperature acoustic measurements.
- PCB® Series 106 acoustic pressure sensors are widely used for such applications as launch vehicle acoustic environment characterization.
PCB’s 40+ year history of reliability and responsiveness in providing dynamic measurement sensors now extends to this complete line of acoustic testing products.
In Summary
PCB® uses a range of measurement technologies:
- Piezoelectric for accelerometers, force, and pressure sensors
- Capacitive for microphones and DC accelerometers
- Resistive for load cells, pressure sensors, and accelerometers
These technologies allow our sensors to measure the performance of mechanical systems across both wide dynamic/amplitude ranges and broad frequency ranges. Whatever your aerospace ground test application, PCB® is likely to be a single supplier for all of your mechanical sensing requirements.
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From ready-to-ship stock products, to custom-made specials, PCB® proudly stands behind all products with services you value most, including our 24-hour customer support, strategic global distribution network, and our industry-exclusive Lifetime Warranty.
Contact us with your next test & measurement project!
Toll Free in USA: 866-816-8892
24-hour SensorLineSM: 716-684-0001
Email: aerosales@pcb.com