Linear
array - practical usage
• The
array was mounted on an X-Y scanning apparatus
• a Polytec laser vibrometer is mounted along the array
• The system is used for mapping the velocity and sound pressure along a thin board of “resonance” wood (Abete della val di Fiemme, the wood employed for building high-quality musical instruments)
• A National Instruments board controls the step motors through a Labview interface
• The system is currently in usage at IVALSA (CNR laboratory on wood, San Michele all’Adige, Trento, Italy)