Meggitt Sensing Systems Introduces Endevco Random Incidence Microphone and Preamplifier Set

By DE Editors

Meggitt Sensing Systems, a Meggitt group division, has introduced the Endevco model EM46AQ, a combined 1/2 in. random incidence microphone and iTEDS enabled preamplifier set (per IEEE 1451.4-2004), designed to support larger channel count precision acoustic measurement requirements within automotive and aircraft interior noise analysis and NVH-related applications.

The Endevco model EM46AQ comes in a preassembled kit, consisting of a microphone cartridge and iTEDS-enabled preamplifier, both constructed of stainless steel. According to the company, units are assembled within a clean room environment to avoid contamination of the contacts and are calibrated together to form a reliable acoustic measurement system. These combined units are intended to be fully repairable.

With a sensitivity of 50 mV/Pa, a frequency response from 3.15 Hz to 16 kHz and a wide dynamic range of 17 dBA to 135 dB, the Endevco model EM46AQ microphone set is designed according to IEC 61094 Class 1 guidelines. The incorporation of iTEDS allows for the microphone and preamplifier to be recognized by any smart-transducer compatible input module. When connected, the analyzer will derive information such as microphone type, serial number and sensitivity, which can be read by the application software for test setups.

For more information, visit Meggitt Sensing Systems.

Sources: Press materials received from the company and additional information gleaned from the company's website.