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Transducer Used in Ultrasonic WeldingJYD-3035-ZY4-V2 is the 35khz high power ultrasonic welding transducer. Description: Ultrasonic welding transducer, in electronics, a device that converts electric energy into some other form of energy. Piezoelectric crystals (crystals that produce an electric current when deformed) and...

JYD-3035-ZY4-V2 is the 35khz high power ultrasonic welding transducer.


Ultrasonic welding transducer, in electronics, a device that converts electric energy into some other form of energy. Piezoelectric crystals (crystals that produce an electric current when deformed) and photoelectric cells are transducers; so are loudspeakers, which produce sound from electric energy. Transducers are used in sound systems, in video equipment and in many measuring devices. A transducer used in a measuring device produces an electric current proportional to the strength or intensity of the physical quantity such as heat, light, or mechanical stress to which the transducer is subjected.




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Q:How does the ultrasonic welding transducer work?

A:An ultrasonic transducer (piezoelectric ceramic resonant transducer) is an electrostrictive ceramic material that has a natural frequency. If the frequency of the external driving signal is the same as the natural frequency, the overall external characteristics of the transducer sheet will be Pure resistive, the highest efficiency of conversion. This is its resonance (resonance) state.

Resonance is conditional. For tube resonance, it is generally 1/4 wavelength resonance. The calculation formula is: 1/4 wavelength of sound wave = length of tube + effective length of tube diameter conversion; when resonance occurs, it can be used The length of the tube and the diameter of the tube are calculated, and the speed of sound is calculated (frequency multiplied by wavelength = speed of sound); if the wavelength is not calculated without resonance, the speed of sound cannot be calculated;

Judging whether the measurement system is in resonance state is to measure whether the sound wave energy is at the maximum. The method is to use frequency scanning. When the sound energy output is maximum, the output frequency is recorded and then calculated. For the tube resonance measurement, the sound velocity has a defect, that is, the diameter of the tube is converted. Effective length problem; usually measuring the sound velocity using the standing wave method to measure adjacent peaks or nodes (half wavelength) of the standing wave;


Q: What’s the shape of the transducer?

A: Power converter type and maximum power

The manufacturer may have different specifications for the nominal power of the machine for different purposes and purposes. In other words, the nominal power of the same transducer may be different for different machines.To avoid ambiguity, the client should specify the structure type of transducer, such as column type, inverted horn type, etc., as well as the diameter and number of piezoelectric ceramic chips.

Fittings and fit dimensions

There are mainly ultrasonic lever material, surface treatment, shape.The ultrasonic transducer is connected with the ultrasonic transformer, the ultrasonic transformer is connected with the ultrasonic mold, and the diameter, thickness, gap or number and position of the screw hole at the flange plate of the ultrasonic transformer.


A transducer is a device that converts electrical energy and acoustic energy into each other. Used in echo sounders, Doppler logs, and acoustic related taxis. A device that converts electrical energy into acoustic energy is called a transmitting transducer; it is a receiving transducer that converts acoustic energy into electrical energy. Transmit and receive transducers are usually used separately, but one can be shared. The main performance indicators of the transducer are: operating frequency, bandwidth, electro-acoustic frequency, impedance at resonant frequency, directivity (transmitting beamwidth) and sensitivity. Depending on the physical characteristics and materials used, transducers can be divided into two categories: magnetostrictive transducers and electrostrictive transducers. The former applies the magnetostrictive effect of ferromagnetic materials, often made of nickel or nickel-iron alloy; the latter uses electrostrictive and piezoelectric effects, often made of dielectric materials such as barium titanate ceramics and lead titanate ceramics. . The transducer is mounted to the bottom of the ship and its directivity can be characterized by beamwidth or semi-diffusion angle.


The characteristics of the transducer depend on the material selection and manufacturing process. The performance and service life of the transducer of the same size are very different. Commonly used high-power ultrasonic transducers are used in ultrasonic plastic welding machines, ultrasonic metal welding machines, various hand-held ultrasonic tools, ultrasonic emulsifier homogenizers, atomizers, ultrasonic engraving machines, etc. Commonly used 15KHz 20KHz 28KHz 35KHz 40KHz 55KHz 70KHz and other products We can also design and manufacture non-standard transducers according to customer's special requirements to meet various needs.

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