Ultrasonic Cleaning the main role in the use of ultrasonic cavitation. Role in the sound field, there is liquid in the bubble will have high-frequency micro-vibration, when the sound pressure reaches a certain value, the rapid growth of air bubbles and then suddenly closed, liquid collision between a strong shock wave, although the displacement, velocity are very
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small, But the acceleration is very large, up to thousands of local atmospheric pressure, so that cleaning of the dirt surface membrane damage, spalling, separation and emulsification, so as to achieve a rapid and efficient cleaning results. At present, ultrasonic cleaning has been internationally recognized as the current most efficient, most effective way of cleaning, the cleaning efficiency above 98%, cleaning cleanliness also reached the highest level. Ultrasonic cleaning equipment by the ultrasonic generator and ultrasonic transducer component. Which ultrasonic cleaning equipment ultrasonic generator is an important part of the process responsible for the work to the ultrasonic transducer to provide energy. Transducer in order to achieve high efficiency, in addition to providing adequate power, but also the frequency generator with the transducer resonant frequency of the same. But the transducer resonant frequency in the course of their work are usually due to heat, aging and other factors change, and the ultrasonic generator on the market are usually by manually adjusting the output signal to track the frequency of ultrasonic transducer resonant frequency, in order to resolve this problem, this paper has been developed based on DDS (direct digital frequency synthesizer) automatic tracking of the ultrasound frequency generator, so that the output signal frequency generator to automatically track the transducer...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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Dear Sir Mar 10, 2020