Opens in a new tab

AES E-Library

← Back to search

Journal Article

Fast Measurement of Motor Suspension Nonlinearities in Loudspeaker Manufacturing

Authors: Klippel, Wolfgang; Schlechter, Joachim

Journal of the Audio Engineering Society · Volume 58 · Issue 3 · pp. 115–125 · March 2010

Abstract

High-speed measurement of loudspeaker nonlinearity is important to achieving quality testing during manufacturing. Rather than just focusing on a single pass–fail criterion, this study explores how measurements at the loudspeakers terminals can provide diagnostic information about the nonlinearity in the motor and suspension systems. For example, a single valued parameter of voice-coil offset can be derived with signal durations of less than 3 seconds. Using this information as feedback in process control can reduce the rejection rate and increase production yield.

Details

Publication
Journal of the Audio Engineering Society
Volume
58
Issue
3
Pages
115–125
Publication date
March 6, 2010
Affiliation
University of Technology Dresden, Dresden, Germany; KLIPPEL GmbH, Dresden, Germany (See document for exact affiliation information.)
Type
Journal Article