Minimal rejection rate
- On-line diagnostics of loudspeaker defects
- Meaningful information for production control
- Simplified interpretation of measurement results
- Early detection of defects
- Higher and consistent quality
KLIPPEL QC SYSTEM integrates advanced loudspeaker diagnostics into the end-of-line testing. This simplifies the interpretation of the results and shows the cause of the defect. Not only is this the basis for repairing units, it is also for discovering trends in the parameter variations and in adjusting the manufacturing process in time to reduce the rejection rate and to assure high and consistent quality.
The figure above illustrates a novel kind of loudspeaker diagnostics provided by Motor + Suspension Check (MSC). If a new batch of spiders causes a variation in the rest position of the coil, the offset in mm can be measured as soon as the first defective driver arrives at the KLIPPEL QC SYSTEM. This information is used to adjust the rest position of the coil and to compensate for the varying properties of the suspension part. There is no longer a need to ship drivers with a coil offset.
Production noise immunity using an additional microphone in the far field prevents wrong PASS/FAIL decision.