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Probe Microphone suits high-temperature automotive testing.

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January 22, 2014 - Comprised of microphone, preamplifier, housing, and several probe tips in different lengths, Model 377B26 allows for sound pressure and resonant frequencies to be quantified in temperatures up to 800C, for exhaust noise and engine analysis. Probe tip is 0.050 in. in diameter, allowing use in confined areas. Featuring prepolarized design powered by ICP or any 2-20 mA constant current supply, probe has dynamic range of 45 dBA to 164 dB and usable frequency range of 2 Hz to 20 KHz.

PCB® Introduces High-Temperature Compact Probe Microphone


PCB Piezotronics, Inc.
3425 Walden Ave.
Depew, NY, 14043 2495
USA



Press release date: January 21, 2014

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

Depew, N.Y. -- PCB 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 800C, 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 PCB Automotive Sensors Division
PCB Automotive Sensors is a dedicated sales and technical support facility, located in Farmington Hills, Michigan, devoted to the testing and instrumentation needs of the global transportation market. This team is focused on the development and application of sensors and related instrumentation for specific vehicle development test programs, including modal analysis; driveability; ride & handling; component & system performance; durability; road load data acquisition; vehicle and powertrain NVH; legislative testing; quality control; powertrain development; and motorsport. PCB proudly stands behind all products with services customers value most, including 24-hour technical support, a global distribution network, and the industry's only commitment to Total Customer Satisfaction. For more information please visit www.pcb.com/Auto.

About PCB Piezotronics
PCB Piezotronics is a leading 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 24-hour technical support, a global distribution network, and the industry's only commitment to Total Customer Satisfaction. Visit us at www.pcb.com.
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