NEW PRODUCTS
Brüel & Kjær Introduces New High-Temperature Accelerometer Type 4526
Brüel & Kjær a leading manufacturer and supplier of sound and vibration solutions, is proud to announce the
introduction of Type 4526 which is a new ThetaShear®, DeltaTron® accelerometer for applications up to 180°C.
During the design, every aspect of the transducer was considered for the high-temperature range, including ma-
terial selection, insulating components, glues and soldering. Electronic components were cautiously chosen and
tested. The preamplifier ASIC was specifically designed for stability, especially of bias and noise.
During the pilot production phase, R & D engineers closely followed all processes. Artificial aging and demanding
burn-in at 180°C secured the long-term stability. Furthermore, as part of the qualification process, the units were
continuously tested at 180°C for more than 3,000 hours, revealing a very stable bias voltage and no degradation
in performance.
Type 4526 comes in two versions, 4526 and 4526-001, which are the best candidates for vibration measurements
under continuous, high-temperature operation on, for example gas-turbine auxiliary equipment, power train, engine
and exhaust and environmental stress screening.
Type 4526 with 100 mV/g and Type 4526-001 with 10 mV/g can be mounted using a stud or adhesive. They can
be used directly up to 8 kHz or 12.8 kHz with REq-X.

Brüel & Kjaer GmbH
Linzer Str. 3
28357 Bremen, Germany
Phone.: +49 421 1787-126
Fax: +49 421 1787-150
E-mail: infobk.de@bksv.com
www.bruelkjaer.de
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