Material (Chinese + English) from ALMA China 2008
Stefan Irrgang presented the product seminar "Checking Voice Coil Position at Production Line" and the paper "Using Simple Tools to Design Small Speakers with High Output" during the ALMA Symposium in October Shenzhen. You may download the hand-outs (English and Chinese) here.
New Scanning Vibrometer System
KLIPPEL released the SCANNING VIBROMETER SYSTEM (SCN) for a non-contact measurement of the mechanical vibration and geometry data of cones, diaphragms, panels and enclosures over the whole audio band (< 25kHz). The system offers new tools for vibration and radiation analysis and shows the contribution to sound pressure output. The software predicts the directivity pattern and separates radial and circular modes.
Download PDF here
R+D System