15kHz-70kHz ultrasonic transducer: technical analysis and application panorama
I. Technical principle and core parameters
Ultrasonic transducer is a device that converts electrical energy and mechanical vibration energy into each other, and its core is based on the piezoelectric effect (realized by piezoelectric ceramic materials). The transducer generates ultrasonic waves through high-frequency vibration in the frequency band of 15kHz-70kHz, which is widely used in industry, medical treatment, environmental protection and other fields.
Operating Frequency: 15kHz-70kHz band covers low-frequency high power and high-frequency precision scenarios, e.g. 15kHz is suitable for industrial welding and 70kHz is used for high-precision medical imaging.
Power and Amplitude: Low frequency (15kHz-30kHz) transducer power up to 2600W or even more, large amplitude, suitable for welding, cutting and other scenarios; high-frequency (40kHz-70kHz) transducer power is lower but high precision, suitable for micromachining or atomization.
Heat resistance and life: the transducer with pre-stressed screw design can reduce heat generation, and the working temperature range reaches -10℃~60℃, which is suitable for continuous operation environment.
II. Applications and typical cases
Industrial Manufacturing
Welding and cutting: 15kHz-20kHz transducer is used for plastic welding or metal welding (e.g. automotive lampshade, electronic component packaging, lithium battery lug welding), high-frequency vibration makes the material fused quickly without solder, energy-saving and efficient.
Cleaning and decontamination: 35kHz-40kHz equipment through the cavitation effect to remove oil on the surface of precision parts, especially for complex structural parts cleaning.
Acoustic chemistry: 20kHz transducer can accelerate the reaction and improve the reaction efficiency in the field of acoustic chemistry, which is commonly used in homogenization, emulsification, nano-dispersion and so on.
Medical and Scientific Research
Cell Wall Breaking and Drug Extraction: 20kHz-40kHz transducers are used for the extraction of traditional Chinese medicine ingredients in laboratories, releasing active substances by destroying the cell wall through high-frequency vibration.
Dentistry and Orthopedics: 55kHz transducer can be applied to bone cutting and drilling.
Intelligent devices: 70kHz can be used in the manufacture of intelligent letter card and embedding wires.
III. Product advantages and purchase guide
Altrasonic Technology's core advantages of the transducer:
High efficiency: electro-acoustic conversion efficiency of more than 90%, reducing energy costs.
Customized design: support titanium alloy, stainless steel and other materials to adapt to different industrial scenarios (such as anti-corrosion or high strength requirements).
Intelligent control: digital frequency conversion technology to achieve automatic frequency tracking, to ensure stable operation of the equipment.
Suggestions for selection:
Match the frequency demand: choose the frequency according to the application scenario (e.g. 15kHz-30kHz is suitable for high-power welding and cutting acoustic chemistry, etc., 50kHz-70kHz is suitable for precision cleaning and medical treatment, etc.).
Focus on compatibility: need to design with ultrasonic generator, variator bar and other components in concert to avoid impedance mismatch.
IV. Market trends and future prospects
Currently, the 15kHz-70kHz transducer market shows two major trends:
High-frequency and miniaturization: medical, consumer electronics field to promote the growth of demand for 70kHz miniature transducers, the volume is reduced to the millimeter level.
In the future, with new materials (such as composite piezoelectric ceramics) and green manufacturing technology breakthroughs, ultrasonic transducers will play a huge role in new energy battery welding and medical instruments and other industries.
