Ultrasound:What is Traditional and Automatic Ultrasound?

What is Traditional Ultrasound and Automatic Ultrasound?

Traditional Ultrasound:

 The analog circuit structure is simple, making it easy to repair and operate. Frequency modulation requirement:

Precise adjustment of the ultrasonic frequency is needed when changing the mold. Disadvantages: Low control accuracy, slow dynamic response, inconvenient parameter setting, susceptible to temperature effects and aging.

Circuit control: Despite the simplified circuit control provided by dedicated analog integrated control chips, there are still challenges such as high power consumption, low integration, and insufficient control flexibility.

 Analog control circuits suffer from drawbacks such as low control precision, sluggish dynamic response, inconvenient parameter adjustment, significant temperature drift, and susceptibility to aging.

traditioanl ultrasonic

The use of specialized analog integrated control chips has made control circuits in power electronics much simpler. These chips allow for faster switching of control signals and the creation of analog regulators with feedback loops by just adding a few resistors and capacitors.

 This improves the overall reliability of the circuit. Despite these advancements, analog control circuits face some challenges. These include issues with the precision and stability of the resistors and capacitors used, as well as the deterioration of these components over time.

traditional ultrasound

Furthermore, analog integrated control chips face challenges such as high power consumption, low integration density, limited control flexibility, and limited universality.

Older models of analog circuit ultrasound generators possess a simplistic structure that facilitates maintenance and repair.

Precise adjustment of the ultrasonic frequency is required when changing the mold. Traditional ultrasonic welding machines generally have a manual frequency adjustment knob that can be rotated left and right to adjust the inductance to match the frequency. Older machines are usually heavy, with a large iron core transformer inside, weighing around 30-60 pounds.

Due to the low voltage resistance of the components, a 220-100V iron core transformer is used for voltage reduction.

Many machines produced by companies still have transformers inside, but the weight has been reduced, with the main unit weighing around 15-25 pounds. It is inconvenient for carrying, moving, and transportation.

traditional ultrasound

Such machines usually have a manual adjustment knob, and the panel also has a voltage meter and current meter, requiring adjustment of the voltage under no load to match the welding head.

Automatic Ultrasound:

Improved control accuracy and stability through digital control. Automation Function: Facilitates the implementation of automatic adjustment control schemes and multiple control strategies, and supports automatic storage of operational data and automatic fault diagnosis.

Reduced Hardware Requirements: Simplified hardware structure, reduced number of components, and improved system reliability.

automatic ultrasonic/ultrasound
automatic ultrasonic/ultrasound

Application Control Technology: Includes microcontroller control, FPGA control, etc., suitable for different application requirements. Comparison and Application Weight and Size:

Traditional analog circuit machines are heavy and bulky, while digital circuit machines are more lightweight, portable, and easy to transport. Power Requirements: Digital circuit ultrasonic generators typically use direct 220V power supply without the need for additional transformers, while analog circuit machines may require them.

Application Scenarios: Analog circuit generators are suitable for scenarios with simple structure and operation requirements, while digital circuit generators are suitable for complex applications requiring high precision control and automation.

automatic ultrasonic/ultrasound

Automatic frequency tracking machines are generally lighter, with the main unit weighing within 10-15 kilograms, rarely exceeding 15 kilograms. They do not require iron core transformers and can be directly powered by 220V.

automatic ultrasonic

They have high integration of circuits, using many chips such as microcontrollers, current and voltage detection chips, etc. Generally, IGBT is used as the power amplification component instead of using 12-24 transistors. Using 2-4 IGBTs can achieve a power output of 1200-2600W.

They have a small size, low heat generation, and require smaller heat sinks, resulting in a significant reduction in weight.

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