Five Features Of Piezo Crystals Used for Ultrasonic Generator That Make Everyone Love It
Requirements of stable ultrasonic generator must have automatic frequency tracking function, this will ensure that the transducer system can always work piezoelectric sensor cost in the resonant state, that is, to maximize the amplitude of the horn, Many domestic companies are using self-excited full bridge or half-bridge circuit for piezo bimorph actuator ,which does not have the function of automatic frequency tracking. This problem is caused when the inductor and capacitor parameters to determine the resonant high frequency piezo transducer of the generator that is a fixed value ,it will not change with temperature or load changes,The welding head and transducer frequency from piezoelectric crystalwith the temperature and load changes will be offset, so that the amplitude of the ultrasonic atomizing piezoelectric will be greatly reduced with the frequency offset, which will directly lead to changes the welding parameters and welding stability. Ultrasonic metal welding about piezoelectric circuit piezo requires a highly wear-resistant welding head, thus requiring the welding head material with high hardness properties, and ultrasonic welding technology itself requires the welding head material to have better toughness, which resulted in the choice of welding head material contradiction. Due to these technical limitations, most welding heads in most domestic companies are not comparable to the welding heads used in similar products in Europe and the United States.