A matching method for automatic matching network of ultrasonic equipment

Abstract

The invention discloses a matching method for an automatic matching network of an ultrasonic device. The ultrasonic device includes a rectification and filtering module, an inverter module and a transducer module. The automatic matching network includes a processor module. The input terminal of the processor module is connected with a A voltage transformer for the voltage parameter of the energy module and a current transformer for detecting the current parameter of the energy conversion module. The output terminal of the processor module is connected with a digital inductance module, and the digital inductance module is connected in series between the inverter module and the energy conversion module. A matching capacitor is connected in parallel between the inverter module and the energy conversion module, and the inverter module is connected to the output end of the processor module; the digital inductance module can be controlled by the processor module to switch and select to output different inductance values. The present invention can be effectively applied in ultrasonic equipment, improve the intelligence, pertinence, professionalism and high efficiency of the matching network, make the transduction module in the ultrasonic equipment in the best working state, improve the transduction efficiency, the effect is remarkable, and it is convenient promote.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic power supplies, and in particular relates to a matching method for an automatic matching network of ultrasonic equipment. Background technique [0002] In high-power ultrasound equipment, the matching network occupies a very important position, and its functions are mainly varistor and tuning. On the one hand, the ultrasonic power supply has the best load resistance through varistor matching, which is convenient for the ultrasonic power supply to output rated electric power to the transducer; on the other hand, the equivalent circuit composed of the transducer and the load is purely resistive through tuning and matching. In this way, the output power of the ultrasonic power supply is the largest, the output efficiency of the vibration system is the highest, and the working efficiency of the ultrasonic power supply in the resonance state is the best, the heat generation is also the smallest, and...

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Problems solved by technology

[0003] In the prior art, the circuit parameters of the matching network of the ultrasonic equipment are fixed, and the corresponding transducer parameters are single, and still rely on manual adjustment, the operation is complicated, and it is not easy to replace, specifically including the following deficiencies:

[0004] (1) Due to the existence of the inherent resonant frequency of the ultrasonic equipment, a specific matching network must be adapted to it. When the resonant frequency of the ultrasonic equipment is in a fixed frequency band, the external resonant matching network does not need to be replaced; when the resonant frequency of the ultrasonic equipment is large When the range changes, the original matching network no longer adapts

[0005] (2) When replacing the transducer, it is necessary to manually recalculate the parameters of the matching network according to the resonant frequency of the transducer and the equivalent parameters of the transducer. The operation is complicated, and the calculation amount and calculation error are relatively large. The entire matching The process is restricted by human factors, resulting in long matching time and low matching accuracy, which affects work efficiency

However, the current ultrasonic power supply integrates the matching network and the main circuit, and it is difficult to replace the matching network separately, resulting in a waste of manpower, financial resources and material resources.

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