超音波转换器(转化器)

The ultrasonic transducer (converter)is a part thatcouldtransform the electrical energy to the mechanical energy (ultrasonic). The most mature and reliable product now is piezoelectric transducer, which transform between electrical energy and the sound energy by the piezoelectric effect. It is composed of the central piezoelectricity ceramic component, metal cover board in front and back, the pre-stressed force screw rod, the electricity pole piece and the insulation tube. This kind of transducer (bolt fastening transducer), shapes in sandwich, can generate the stable ultrasonic wave while the load changed. It is the most essential and the main method to obtain the power ultrasonic generator. According to the different designation, it can be divided into columnar type (the diameter of the metal cover board in front and back are the same), upside-down the trumpet (front cover board diameter to minish gradually through the arc), the columnar type steel with post operculum, and the columnar type with nodal point and so on. Main characteristics:High Efficiency: of high mechanical factor. High transfer efficiency is obtained when working in resonance frequency. Big amplitude: designed and chosen by computer, high rate in oscillation speed and big amplitude in front operculum. Big Power: under the function of the pre-stressed force screw rod, the piezoelectricity ceramics can work freely in the highest level of power. In good heat resistance: of small resonance impedance, less heat produced, can be used in a wide range of temperature with long life and high reliability.