What Is an Ultrasonic Oscillator?
An ultrasonic oscillator is a device that can generate ultrasonic waves, consisting of an oscillator and a transducer. It is used as a washing machine for ultrasonic cleaning by integrating it with a medium that transmits ultrasonic waves, such as water or a cleaning agent.
The frequency of oscillation can be set, and the optimal conditions of the transducer can be automatically detected and tuned, so that the intensity of cleaning power can be maintained at a constant level by oscillating stable ultrasonic waves. The intensity can be adjusted from weak to strong to meet a wide range of cleaning applications.
Uses of Ultrasonic Oscillators
Ultrasonic oscillators are used for cleaning and treatment using ultrasonic vibrations.
They are used to clean metal parts such as screws and press products that have persistent oil stains adhering to them, as well as fine particle dust adhering to HDD parts and semiconductors.
Ultrasonic oscillators should not be used to clean materials that lose their luster, such as pearls, or precision machinery, such as watches and cameras that require waterproofing.
Principle of Ultrasonic Oscillators
Ultrasonic oscillators are devices that provide power and generate vibrations through power conversion at the transducer, causing ultrasonic waves.
The transducer uses the principle of resonance, and there are two types: the electrostrictive type, which expands and contracts under the action of an electric field, and the magnetostrictive type, which expands and contracts under the action of a magnetic field, and is characterized by its high conversion efficiency.
When ultrasonic vibrations are transmitted into a liquid, the liquid becomes low pressure and generates bubbles filled with evaporated or dissolved gases, a phenomenon known as cavitation.
In ultrasonic cleaning using ultrasonic oscillators, the physical action of cavitation floats and peels off stuck-on dirt, which is then cleaned by the chemical action of the detergent.
The larger the cavitation, the greater the vibration’s effect on the object to be cleaned, but it can also clean persistent and difficult-to-remove stains.
Small cavitation causes less damage to the object to be cleaned and leaves no unevenness in the cleaning process.