CCLD Accelerometers operate in harsh environments.

Press Release Summary:

Featuring ThetaShear® accelerometer design, Type 4533-B and Type 4534-B have output sensitivities from 1–50 mV/ms-2 and non-destructive shock limit of 10,000 g. Both automatically self-identify and supply calibration information using TEDS technology. Featuring hermetically sealed titanium housing, insulated base, and 10–32 UNF thread mounting hole, accelerometers are suitable for vibration measurement in automotive parts, aircraft, and industrial machinery.

Original Press Release:

All-Purpose Accelerometers

New family of tough vibration measurement accelerometers from Bruel & Kjaer

DENMARK, -- Bruel & Kjaer has created a range of robust CCLD accelerometers for vibration measurements in harsh industrial environments.

The new Type 4533-B and Type 4534-B accelerometers feature a high signal output-to-weight ratio and very low sensitivity to environmental influences thanks to Bruel & Kjaer's patented ThetaShear® accelerometer design.

This makes them ideal for general vibration measurements for a range of different applications, such as automotive parts, aircraft, and industrial machinery.

The new units have output sensitivities from 1 mV/ms–2 to 50 mV/ms–2 and a non-destructive (shock) limit of 10 000g, making them more robust than normal CCLD accelerometers, which typically have a limit of 5000g.

Both accelerometers automatically self-identify and supply calibration information using TEDS technology (Transducer Electronic Data Sheet).

Each unit features lightweight, robust, hermetically-sealed titanium housing, an insulated base (avoiding ground-loop problems) and a 10–32 UNF thread mounting hole - suiting use in harsh environmental conditions.

Bruel & Kjaer has also updated its Transducers & Conditioning catalogue, which provides a comprehensive guide to its full range of microphones, accelerometers and accessories.

This latest version has quick links to the different sections, a matrix to simplify choosing the right equipment, and service/repair information.

More information about 4533-B and 4534-B is available on Bruel & Kjaer's web site:

About Bruel & Kjaer

Bruel & Kjaer is a world-leading manufacturer and supplier of sound and vibration measurement systems.

Bruel & Kjaer helps its customers measure and manage the quality of sound and vibration in their products and in the environment. Focus areas are aerospace, space, defence, automotive, ground transportation, airport environment, urban environment, telecom and audio.

Bruel & Kjaer has an unparalleled portfolio of sound and vibration equipment and is a long-established designer and manufacturer of innovative instrumentation including sound level meters, microphones, accelerometers, conditioning amplifiers, calibrators, noise and vibration analyzers, and PULSE software. In addition, Bruel & Kjaer designs and manufactures the LDS range of vibration test systems, as well as complete airport and environmental monitoring systems: WebTrak, ANOMS, NoiseOffice and Noise Sentinel. To see the full range of solutions, systems and products, please visit

Bruel & Kjaer also runs a variety of training courses, from basic introductions to noise and its effects to more specialised classes teaching customers how to get the most out of their equipment. Free, online training courses - conducted by our expert engineers - run throughout the year too. For all course registration details visit

Bruel & Kjaer is a subsidiary of UK-based Spectris plc ( which has annual sales of £1.1bn and employs around 7,500 people worldwide across its four business segments.

For additional information please contact:

Heather Wilkins

Marketing Coordinator

Bruel & Kjaer

Telephone: 01223 389 800



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