Externally Polarized Microphone has 50 mV/Pa sensitivity.

Press Release Summary:

Model 377B41 is ½ in. Free Field type microphone that features dynamic range of 15-146 dB (A) re 20 µPa and frequency range from 3.15-20,000 Hz ±2 dB. Condenser microphone has +302°F operating temperature range, and, when combined with PCB® Model 426A30 preamplifier, operates from 200 V power supply for externally polarized microphones.

Original Press Release:

PCB Offers New Model 377B41 Externally Polarized Free Field ½

September 1, 2005, Depew, NY - The Vibration Division of PCB Piezotronics, Inc. (PCB®), introduces new Model 377B41 externally polarized, 1/2" Free Field type microphone. The distinguishing feature of this model is its enhanced sensitivity rating of 50 mV/Pa. It has wide dynamic range (15 to 146 dB (A) re 20Ã,µPa) and a frequency range from 3.15 Hz to 20,000 Hz (+/- 2 dB). This traditional type condenser microphone has a +150 °C (+302 °F) operating temperature range, and - when combined with the PCB® Model 426A30 preamplifier - operates from a 200 V power supply for externally polarized microphones. This traditional-style microphone preamplifier terminates in a 7-pin LEMO style connector. In addition to its traditional 200V models, PCB® carries a full line of modern, pre-polarized, condenser microphones and preamplifiers. Powered by a 2 to 20 mA signal conditioner and standard coaxial cables, these modern designs allow for significant savings in power supply and cabling cost, greater ease-of-use and operate from the same power as is required for ICP® accelerometers. This provides the advantage of using microphones with ICP® accelerometers in the same test, with the same signal conditioning equipment, minimizing set-up time. For additional information on this accelerometer, contact the Vibration Division of PCB Piezotronics, Inc. toll-free at (888) 684-0013 (in the U.S. and Canada); E-mail: vibration@pcb.com; or fax at (716) 685-3886. For other PCB® products, contact PCB directly at 716-684-0001, or visit our web site at www.pcb.com. PCB and ICP are trademarks of PCB Group Inc. PCB PIEZOTRONICS, INC. - VIBRATION DIVISION 3425 Walden Avenue, Depew, New York 14043-2495 USA Toll Free: 888-684-0013 Fax: 716-685-3886 24-hour SensorLineSM: 716-684-0001 E-mail: vibration@pcb.com Web site: www.pcb.com ISO 9001:2000 Certified A2LA Accredited to ISO 17025 CONTACTS: General / Sales Leads: Andrea Mohn Marketing Coordinator PCB Piezotronics, Inc. 3425 Walden Avenue Depew, NY 14043-2495 (800) 828-8840 ext. 2216 Fax: (716) 684-0987 E-Mail: mktg@pcb.com Technical: Mark Valentino Product Manager Vibration Division 3425 Walden Avenue Depew, NY 14043-2495 (888) 684-0013 ext. 2437 Fax: (716) 685-3886 E-Mail: mvalentino@pcb.com

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