New Preamplifier Gets Closer to Hot Sources

Brüel & Kjær has launched the world’s first preamplifier and preamplifier/microphone combinations able to withstand temperatures up to 125ºC (257 ºF).

High-temperature CCLD Microphone Preamplifier

High-temperature CCLD Microphone Preamplifier Type 1706 enables engineers to make acoustical measurements nearer to the source of noises on hot devices. This simplifies identification of potential issues, making it ideal for testing applications including gas turbine auxiliary equipment, environmental stress screening, automotive engines, and exhaust systems.

A 'smart transducer', Type 1706 is very easy to integrate and setup in the measurement chain. Identification, calibration, and correction data are internally stored using a Transducer Electronic Data Sheet (TEDS), which is automatically read by the analysis system.

Type 1706 works in combination with a free-field or diffuse-field ½" microphone, and the data covering both the preamplifier and the microphone are stored on a TEDS.

A CD shipped with every transducer contains detailed information on its calibration and the compensation necessary when using accessories such as windscreens - ensuring highly accurate measurements.