PCB Piezotronics - PRODUCT NEWS

 




PCB® introduces High-Temperature Compact Probe Microphone

New model ideal for high-temperature testing in small areas within the vehicle

Piezotronics announces the launch of a new probe microphone for automotive research and design engineers who need to measure sound pressure in high temperature or small confined areas. The probe microphone (Model 377B26) is comprised of four components: microphone, preamplifier, housing and several probe tips of different lengths. Together this allows a maximum operating temperature of 800°C, which is much greater than traditional test and measurement microphones. This new design allows for sound pressure and resonant frequencies to be quantified for exhaust noise and engine analysis via a non-contact sensor on the automobile.

The probe tip diameter is extremely small, measuring 0.050" (1.3mm), allowing engineers to make measurements in small, confined areas that cannot be accessed using traditional microphones, which are much larger. The small size of the probe tip also allows near field measurements with minimal disturbance of the sound field. This enables more accurate test results.

The dynamic range of the probe is 45 dBA to 164 dB. The 20mm probe tip length has a useable frequency range of 2Hz to 20 kHz. In addition, the prepolarized design is powered by ICP® or any 2-20 mA constant current supply. This lowers the total system cost because it allows engineers to use existing 2-20mA low-cost power supplies and coaxial cables which are less costly than 200V power supplies required for externally polarized microphones. An additional benefit is interchangeability with existing ICP® accelerometers, force, and pressure sensor set-ups.

"We are very excited about the new probe microphone. The combination of the elevated temperature range and small form factor of the probe tip allows this unique microphone design to be used in a plethora of applications where traditional microphones would not be applicable" states Mark Valentino, product marketing manager for the acoustics division at PCB®.

For additional information on the new probe microphone visit www.pcb.com/probemicauto or contact Mark Valentino, Product Manager at 888 684-0013 or via email at mvalentino@pcb.com.



About Aerospace & Defense Division
PCB®'s Aerospace & Defense specializes in products and programs developed exclusively for the global aerospace, civil and military aviation, defense, homeland security and test & measurement markets. Products include space-rated high temperature and high-G shock accelerometers; space-qualified hardware; sensors and instrumentation for Health and Usage Monitoring Systems (HUMS), for UAV's, helicopters, fixed wing aircraft and ground vehicles; system electronics; combustion monitoring pressure sensors; high temperature engine vibration monitoring sensors; launch and separation shock sensors; Active Noise Cancellation products; and aircraft hydraulic pressure sensors, among others. Typical applications include vibration and fatigue testing; qualification testing; aircraft and engine ground testing, flutter and flight testing; blast pressure and hydraulic system pressure measurements; structural dynamics; engine vibration monitoring; launch and separation shock studies; pressure, wind tunnel and aerodynamic studies; aircraft and ground vehicle prognostics; and noise cancellation applications. For more information visit www.pcb.com/aerospace.


About PCB Piezotronics, Inc.
PCB Piezotronics is a global supplier of microphones, vibration, pressure, force, torque, load, and strain sensors, as well as the pioneer of ICP® technology. This instrumentation is used for test, measurement, monitoring, and control requirements in automotive, aerospace, industrial, R&D, military, educational, commercial, OEM applications, and more. Our Platinum Products program ensures fast delivery of over 10,000 sensors that are covered by a Lifetime Warranty. With a customer support team of more than 30 Customer Service Representatives and Application Engineers, PCB® proudly stands behind their products with the services you value most, including a 24-hour SensorLinesm, a global distribution network, and the industry's only commitment to Total Customer Satisfaction.



For more information, please contact :-

PCB Piezotronics Ltd.
Tel: +44(0)1462 429710
Fax: +44(0)1462 429798
Email:
ukinfo@pcb.com
Website:
www.pcbsensors.co.uk

January 2014

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