DEVICE FOR ULTRASONIC CHECKING OF ROTATING PARTS Russian patent published in 1998 - IPC

FIELD: checking technology. SUBSTANCE: device has shaft which imparts rotation to article, radiating and receiving ultrasonic oscillation transducers coupled mechanically and acoustically to article, sector electrode and dielectric sleeve secured on shaft, independent preamplifier positioned inside or outside the shaft, optoelectronic pair responsible for contactless and remote connection of preamplifier and recording equipment, immovable brush, electric signal generator synchronized with shaft rotation. Electrode is divided into sectors by means of dielectric gaskets. Radiating transducers of ultrasonic oscillations are in constant contact with article. In this case, appliances for guidance, adjustment and synchronization become superfluous. EFFECT: enhanced reliability of checking. 3 dwg