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What is ultrasonic transducer

Ultrasonic welding transducer is a device that converts electrical energy into mechanical energy. It is an electrical component that realizes the mutual conversion of electrical energy and acoustic energy by the piezoelectric effect. It is a component made of central piezoelectric ceramics. The front and rear are designed with metal cover plates. The screw is pre-stressed, and the electrode sheet and insulating tube are assembled. The sandwich transducer generates stable ultrasonicwhen the load changes, and the basic method of power ultrasonic generator. Designed according to the configuration of the machine.

The ultrasonic welding transducer is also called as ultrasonic vibrator by the industry. It is one of the more widely used energy conversion devices in China. The device converts high-frequency electrical energy into mechanical energy. In this way, the input electrical power is converted into mechanical power and then transmitted Going out, and the ultrasonic transducer itself will consume a small part of the power, which is more common in the field of ultrasonic welding machines.

Ultrasonic weldingtransducer is an independent subject, which covers a wide range of industries, such as physics, chemistry, optics, wave science, electronics, mathematics, and signal processing. The research direction of the subject of ultrasonic transducers is to do everything possible to meet the practical requirements of engineering such as acoustic impedance, impulse response, frequency response, impedance matching, acoustic structure, transducer materials and vibration modes, etc., design and coordinate these basic characteristics to achieve electrical Best conversion with sound.

Different products, the parameters and operation of the ultrasonic welding machine are different. Then the transducers are different. It is based on the product's appearance and materials.

Does ultrasonic harm to human?

The principle of super operation is to use the physical principle of sound waves. The frequency is more than 20000Hz for ultrasound, and the medical ultrasound frequency is 1 ~ 15MHz. The essence of ultrasound is sound waves, that is, mechanical waves,Therefore, it is not harmed by ionizing radiation, and ultrasound has not been found to have harmed the human body. The range of sound that human ears can accept is from 16 to 20,000 Hz.When the frequency of sound reaches 25 to 8200 Hz, vibration can be felt. Sounds below 16 Hz are called bass, and those above 20,000 Hz are ultrasoundWhen the ultrasonic wave propagates in the medium, the particles of the medium reciprocate near its equilibrium position, which causes a sparse and dense change in the rhythm of the medium. This sparse change forms a pressure change, Can produce a fine massage effect on human tissue cells. Micro-massage is the most basic mechanism for ultrasound to treat diseases. This fine massaging effect on the cells can change the fineness of the tissueCell volume, reduce swelling, change the permeability of the membrane, promote the exchange of metabolites, change the function of cells, and improve the regeneration capacity of tissue cells. So treat some local circulatory disordersObstructive diseases such as malnutrition ulcers work well. Some people have observed that under the mechanical action of ultrasound, the amplitude of spinal cord reflection decreases, the transmission of reflection is inhibited, and the bioelectricity of neural tissuesReduced activity, so ultrasound has a significant analgesic effect. The mechanical effect of ultrasound can also lengthen and soften the hard connective tissue, which is used to treat scars, adhesions and scleroderma.It can be seen that the mechanical effect of ultrasound can soften tissues, enhance penetration, improve metabolism, promote blood circulation, stimulate the nervous system and cell functions, so it has important therapeutic significance.The treatment mechanism occupies an important position.