A Great Acoustician is Quiet

Per V. Brüel passes away on 2nd April 2015

April 2015 -- Co-founder of sound and vibration company Brüel & Kjær, Per V. Brüel, has passed away just a month after celebrating his 100th birthday.

Born in Copenhagen on 6 March 1915, Per Brüel ‘s family expected him to become a forester. However, he showed a knack for technology and studied engineering at the Danish Technical University, where he met Viggo Kjær. After graduation, the pair decided to follow their shared dream of starting an engineering firm.

At this time sound and vibration was not on the agenda of industry; as a result Per became a driving force behind setting international standards - and establishing the importance of sound and vibration in product development, to measure and reduce vibration and noise levels.

“Even then we could see that noise is one of the biggest problems of our time - it affects millions of people every day,” Per said. “Our instruments could not only measure noise but also help customers identify and eliminate noise problems.”

Through the second half of the 20th century, Brüel & Kjær grew to become the world’s largest specialist in sound and vibration solutions. 

In 1992, the duo sold the company and then went on to pursue other ventures. Per continued his work in acoustics as a consultant and lectured on sound and vibration. Over the course of his life, he received many honorary titles from renowned universities and organizations around the world in recognition of his contribution to the field of sound and vibration.

Per was active and energetic right to the end, as demonstrated by his 100th birthday, which was celebrated in style, with nearly 100 guests at his home north of Copenhagen.

Background information for this article was drawn from Journey to Greatness: The Story of Brüel & Kjær, by Jackson Mowry and Ghita Borring

About Brüel & Kjær

Brüel & Kjær is a world-leading manufacturer and supplier of sound and vibration measurement systems.

We help customers measure and manage the quality of sound and vibration in their products and in the environment. Focus areas include aerospace, space, defence, automotive, ground transportation, airport
environment, urban environment, telecom and audio.

Our portfolio of sound and vibration equipment includes sound level meters, microphones, accelerometers, conditioning amplifiers, calibrators, noise and vibration analysers and PULSE software.

We also design and manufacture the LDS range of vibration test systems, as well as complete airport and environmental monitoring systems: WebTrak, ANOMS, NoiseOffice and Noise Sentinel.

To see our full range of solutions, systems and products, please visit:

We run a variety of training courses, from basic introductions on 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. For all course registration details, please visit:

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

Customer comments

No comments were found for A Great Acoustician is Quiet. Be the first to comment!