Array Microphones offer frequency range up to 20 KHz.
October 27, 2010 -
Incorporating SMB connector for integration with DAQ systems, EndevcoŽ Model EM40PH features 50 mV/Pa sensitivity and dynamic range up to 135 dB, while Model EM40PL offers sensitivity of 10 mV/Pa and dynamic range up to 150 dB. Free-field pre-polarized microphones are designed for multi-channel acoustic measurements of sound power, sound pressure levels and frequencies, and sound-field analyses. Incorporation of TEDS technology allows microphones to be recognized by TEDS compatible input modules.
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Original Press release
Meggitt Sensing Systems (Endevco Corp.)
30700 Rancho Viejo Rd.
San Juan Capistrano, CA, 92675
USA
Meggitt Sensing Systems Debuts EndevcoŽ Low-Cost Array Microphones with ISOTRONŽ and TEDS for Automotive, Aerospace and General Test & Measurement Applications
San Juan Capistrano, California, USA - Meggitt Sensing Systems, a Meggitt group division, has announced the introduction of EndevcoŽ models EM40PH and EM40PL, two low-cost free-field pre-polarized array microphones, designed for multi-channel acoustic measurements of sound power; sound pressure levels and frequencies; sound-field analyses; and concurrent spatial and transient measurements within the audible range in aerospace, automotive and test & measurement applications.
EndevcoŽ models EM40PH and EM40PL offer a wide frequency range of up to 20 KHz. The model EM40PH is offered with a high sensitivity of 50 mV/Pa and a large dynamic range of up to 135 dB, while the model EM40PL is offered with a low sensitivity of 10 mV/Pa and a large dynamic range of up to 150 dB. Their highly durable design incorporates use of an SMB connector for ease of test setup assembly and seamless integration with most data acquisition systems. ISOTRONŽ (IEPE) capabilities allow EndevcoŽ array microphones to be used interchangeably with IEPE-type accelerometers within the same test setups for added convenience. In addition, ISOTRONŽ microphones have no additional power supply requirements when used within standard 2-20 mA constant current powered systems. Incorporation of TEDS technology allows a microphone to be recognized by any TEDS compatible input module, allowing an analyzer to derive information about microphone type, serial number and sensitivity, which can then be read by the application software. Close manufacturing tolerances and TEDS capabilities provide models EM40PH and EM40PL with the major advantage of a high degree of interchangeability within multiple array matrices.
EndevcoŽ models EM40PH and EM40PL are ideal for use in larger-channel count acoustic measurement applications, such as near field acoustic holography; trending and frequency analysis; white goods testing; automotive and aerospace NVH, or as a lower-cost alternative to a Type 1 compliant microphone in general acoustic testing. Recommended accessories include the EndevcoŽ model EM42AA handheld pistonphone calibrator and the model 133 three-channel signal conditioner. All EndevcoŽ acoustic sensors and instrumentation are backed by a five-year comprehensive product warranty. For more information about the EndevcoŽ models EM40PH and EM40PL or other products available from Meggitt Sensing Systems, visit www.meggittsensingsystems.com.
About Meggitt Sensing Systems
Meggitt Sensing Systems, a Meggitt group division (www.meggitt.com), is a leading supplier of high-performance sensing and monitoring systems for physical parameter measurements in extreme environments. It has operated since 1927 through its antecedents-ECET, Endevco, Ferroperm Piezoceramics, Lodge Ignition, Sensorex, Vibro-Meter and Wilcoxon Research-whose portfolios form the basis of product lines offered by today's Meggitt Sensing Systems. Meggitt's EndevcoŽ range of piezoelectric, piezoresistive, IsotronŽ and variable capacitance accelerometers, piezoresistive pressure transducers, acoustic sensors, electronic instruments and calibration systems ensure critical accuracy and reliability within aerospace, automotive, defense, industrial, medical, power generation, R&D, space and test and measurement applications. EndevcoŽ and IsotronŽ are registered trademarks of the Meggitt group.
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