Black Ceramics Ultrasound Welding Transducer , Power 1500w 20khz Ultrasonic

Product Specification

PZT4 Black Ceramics 20Khz Ultrasound Welding Transducer 1500w Power

Description:

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.

Specifications:

Characteristics of Ultrasonic wave:

The laws of reflection, refraction, diffraction, and scattering of ultrasonic waves in the medium are not fundamentally different from the laws of audible sound waves. But the wavelength of the ultrasound is very short, only a few thousandths of a millimeter. Compared to audible sound waves, ultrasound has many singular characteristics:

Propagation characteristics—The wavelength of the ultrasonic wave is very short. The size of the ordinary obstacle is many times larger than the wavelength of the ultrasonic wave. Therefore, the diffraction power of the ultrasonic hot melt machine is very poor. It can orient the straight line in a uniform medium, and the wavelength of the ultrasonic wave is higher. Short, this feature is more significant.

Power Characteristics - When sound travels through the air, it pushes the particles in the air back and forth to work on the particles. The sound power is the physical quantity that indicates how fast the sound wave works. At the same intensity, the higher the frequency of the sound wave, the greater the power it has. Since the ultrasonic frequency is high, the power of the ultrasonic wave is very large compared to the general sound wave.

Cavitation When the ultrasonic waves propagate in the liquid, small holes are created inside the liquid due to the intense vibration of the liquid particles. These small hollow ultrasonic weldings rapidly expand and close, causing a violent impact between the liquid particles, resulting in pressures of thousands to tens of thousands of atmospheres. This violent interaction between the particles causes the temperature of the liquid to rise suddenly, which acts as a good agitation, emulsification of the two immiscible liquids (such as water and oil), and accelerates the dissolution of the solute and accelerates chemical reaction. This various effects caused by the action of ultrasonic waves in the liquid are called cavitation of the ultrasonic waves.

PZT4 Black Ceramics 20Khz Ultrasound Welding Transducer 1500w Power