Vorrichtung zur zerstoerungsfreien Pruefung von Bauteilen mittels Ultraschallwellen

EP 1632774 A UPAB: 20060331 NOVELTY - The apparatus comprises a transmitter-receiver (1) and an acoustic element (2), i.e. a lens or reflector for sound, which focuses and/or deflects the ultrasonic beam. These (1, 2) are moved by an actuator (3) relative to the component under scrutiny. This movement occurs around rotary and translatory axes. The acoustic element is e.g. planar, concave, aspheric, lens-shaped or prismatic. A voice coil actuator employed, is used at a pulse repetition frequency exceeding 750 Hz. A high acoustic impedance filling is provided. The equipment is controlled by an electronic steering and evaluation unit. USE - Ultrasonic testing equipment detecting physical characteristics of components e.g. for quality assessment in diverse industries. Application is wide and general, in e.g. aerospace, automobile, metallurgical, machine tool, plant construction, electrical and electronic industries. ADVANTAGE - The equipment reveals e.g. inhomogeneities in the materials of components. It detects boundaries and cracks. It may be used with items large and small. The high cost of numbers of purpose-designed heads, as in prior art, is avoided. Testing is trouble-free and economical