Tuning matching plays an important role in the system of ultrasonic generators. First, when the ultrasonic transducer is in resonance state, it usually has a capacity state. Through the matching network, the capacitive impedance is compensated, so the load of the ultrasonic generator is as close as possible to the pure impedance. Condition to reduce invalid power ingredients Impedance Matching: According to the AC theory, if the power impedance and load impedance are equal, the load can get maximum power. Because the ultrasonic transducer has the characteristics of impedance model, the generator is changed by the impedance characteristics matching network of power supply load throughout the entire sonic wave, and the appropriate parameters are selected to make the load impedance closer to the power impedance and ultrasonic waves can get a large amount of power. Today, they have done detailed research on matching network of ultrasonic transducers. Based on equivalent circuit, it improves the efficiency of ultrasonic transducers to get maximum conversion power using a simple L-C matching network.
From the point of view of the ultrasonic transducer excitation mode, it can be divided into two excitation modes: self-excitement mode and self-excitement mode. The vibration mode of the two generators is different, so in the case of that exciter, you need to know the specific parameter. Ultrasonic transducer with working frequency Connected inductance values are generally calculated by normal calculations, and usually you can decide the job. Frequency by connecting inductance value From the perspective of impedance matching, the methods to do this is analyzed. Matching network consists of Pulstrance and R, L, and C between generator and ultrasonic transducer. Based on analysis of the basic principles of ultrasonic transducers and electrical equivalent circuits, capacitive matching, inductance matching, LC matching, and T-type matching are considered to provide basic calculation methods for these matching modes and parameters. Matching is analyzed. The benefits and disadvantages of these two matching methods have excellent reference values for static matching. The advantage of these two matching methods is suggested by analyzing the series inductance integrity properties and the characteristics of the ultrasonic transducer frequencies, L-type matching networks is suggested, compared to the working frequency and electromechanical bonding coefficient of these matching methods, which provides one for static matching network. Method of planting