Device for determining a sound energy flux field comprises a calibration value storage unit in which a calibration value is stored for each measuring point on a foil

摘要

Device for determining a sound energy flux field comprises a calibration value storage unit (9) in which a calibration value is stored for each measuring point on a foil (2). Preferred Features: The device has an optical radiation source (3) and an optical receiver (4) formed by a laser scanning vibrometer. A unit is assigned to the device for acoustically irradiating the foil using a defined sound source (1) to produce the calibration value. The foil is made from a material which reflects and partially transmits optical radiation.