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Thursday, October 21 • 12:00pm - 1:00pm
Loudspeaker Work-Bench Measurements

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Transducers are usually clamped in a relatively large baffle and measured under anechoic conditions to approximate perfect acoustical half-space conditions. A new acoustical near field method is presented that uses an extremely small ROUND baffle at least 10 cm around the transducer and can be operated in a normal office, workshop, or any other environment. Holographic post-processing removes the acoustical short-cut and baffle reflections and suppresses room modes and gives accurate data in the near and far-field. Exploiting the symmetry of the transducer reduces the measurement time to 5 minutes while providing full directivity information. The near field scanner is a small add-on to the KLIPPEL laser vibrometer using the same robotics. This seminar discusses important electrical, mechanical, and acoustical measurement performed on the SCN work-bench according to IEC 60268-21 and 22.

avatar for Simon Steiner

Simon Steiner

HW Development, Klippel GmbH
avatar for Wolfgang Klippel

Wolfgang Klippel

Klippel GmbH

Thursday October 21, 2021 12:00pm - 1:00pm EDT
Stream A