Microphone has linear frequency range of 4 Hz to 20,000 kHz.

Press Release Summary:




Operating from ICP sensor power, prepolarized, ½ in. random incidence response microphone Model 377A21 has distortion factor of 3%, and noise floor rating of 20 dB(A). Suitable applications include automobile and aerospace cabin testing, church hall and concert hall testing, environmental tests with sound level meters, and reverb chamber testing.



Original Press Release:



New Random Incidence Response Microphone Features Extended Frequency Capability



Depew, New York, USA, May 27, 2009 - PCB Piezotronics, Inc., a world leader in vibration, acoustic, pressure, force, and torque sensors, introduces Model 377A21, a prepolarized, 1/2" Random Incidence (RI) response microphone. Operating from ICP Sensor Power, this new microphone features an extended frequency capability. Applications include automobile and aerospace cabin testing, church hall and concert hall testing, environmental tests with sound level meters, and reverb chamber testing.

Most half inch RI Response microphones are limited to a maximum frequency of 12 kHz and can not be used in applications where the full audible range was required. PCB® model 377A21 has a linear frequency range of 4 Hz to 20,000 kHz (+/- 2 dB.) that eliminates this limitation. The 377A21 is specifically designed for applications where the user is looking to measure diffuse sounds, or the total sound coming from different locations. The 3% distortion factor of this microphone, which is the maximum amplitude that a microphone can measure and still be linear, was increased from 146 dB (re 20mPa.) to 155 dB. The increased amplitude, in combination with the low Noise Floor rating of 20 dB(A), make this microphone an excellent choice for specific Aerospace, Automotive and Military applications.

PCB® is a global leader in the design and manufacture of force, torque, load, strain, pressure, acoustic and vibration sensors. This instrumentation is used for test, measurement, monitoring, and feedback control requirements in automotive, aerospace, industrial, R&D, military, educational, commercial, and OEM applications. From ready-to-ship stock products, to custom-made specials, PCB® proudly stands behind all products with services you value most, including 24-hour customer support, a strategic global distribution network, and a Total Customer Satisfaction guarantee. For more information about PCB® visit www.pcb.com.

Contacts;

General / Sales Leads:

Jennifer Beal

Phone: 716-684-0001

E-Mail: prospects@pcb.com

Technical:

Mark Valentino

Phone: 800-828-8840

E-mail: mvalentino@pcb.com

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