Small electromagnetic vibration table, lightweight design, laboratory placement without occupying space

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Small electromagnetic vibration table, lightweight design, laboratory placement without occupying space

1、 Product Details

A small electromagnetic vibration table is an experimental equipment that uses electromagnetic principles to generate precise and controllable mechanical vibrations. The core design concept is "lightweight" and "compact", aiming to solve the pain points of traditional large vibration tables that require a large footprint and complex installation. The platform is usually made of high-strength aluminum alloy material, which greatly reduces weight while ensuring structural rigidity. The overall design is simple, and the base is often equipped with anti slip pads or simple fixing devices, which can be easily placed on standard experimental tables, workbenches, and even fume hoods. Its integrated design integrates the driver amplifier and control system, with fewer connecting cables, and can be quickly put into use after power on, greatly improving the space utilization and equipment deployment flexibility of the laboratory. It is an ideal choice for modern and intensive laboratories.

Small electromagnetic vibration table, lightweight design, laboratory placement without occupying space

2、 Main purpose

This device is widely used in scientific research and industrial fields that require simulation of vibration environments or vibration testing, mainly including:

• Product reliability testing: used for evaluating the vibration resistance performance of electronic components, PCBA circuit boards, small modules, connectors, and other products, to detect manufacturing process defects (such as virtual soldering and poor contact) in advance.

• Structural characteristic research: During the product development phase, it is used to determine the natural frequency, resonance point, and modal analysis of the specimen, providing data support for structural optimization.

• Teaching and Research: Used in laboratories of mechanics, mechanics, aerospace, and other fields in higher education institutions to visually demonstrate vibration principles and conduct related control experiments.

• Process screening: As a key equipment for environmental stress screening (ESS), it is used to eliminate potential faulty products on the production line and improve the overall quality of the products leaving the factory.

  
  

• Transportation simulation: Simulate the bumps and vibrations experienced by the product during transportation to evaluate the effectiveness of its packaging protection.

  
  

3、 Technical parameters (typical values)

• Table size: Φ 100mm~200mm

• Load: 2kg~5kg

• Frequency range: 5 Hz~3000 Hz (or higher, such as 5000 Hz)

• Acceleration: 10g~50g (approximately 98 m/s ²~490 m/s ²)

• Displacement (peak to peak): 5mm~10mm

• Vibration direction: Vertical (customizable for horizontal or vertical/horizontal use)

• Cooling method: natural air cooling

• Input power supply: AC 220V ± 10%, 50/60Hz

• Control method: Connected to the computer via USB or Ethernet, controlled by dedicated software.

4、 Product performance

1. High precision and controllability: With a closed-loop control system and high-sensitivity sensors, it can achieve various precise waveform outputs such as fixed frequency, sweep frequency, and random vibration, with low waveform distortion.

2. Stable and reliable operation: The core dynamic coil adopts a brushless design, with a long lifespan and low maintenance costs. The electromagnetic drive method makes it respond quickly and has good repeatability.

3. Easy to operate and user-friendly: equipped with graphical control software, user-friendly interface, intuitive parameter settings, supporting real-time data display, automatic storage, and test report generation.

4. Low noise operation: Compared to mechanical vibration tables, electromagnetic operation significantly reduces noise, creating a quiet working environment for the laboratory.

5. Strong scalability: It can be easily combined with external devices such as data acquisition systems and oscilloscopes to build more complex testing platforms.

5、 Working principle

The small electromagnetic vibration table works based on the classic "moving coil" electromagnetic drive principle, and its core is a structure similar to a loudspeaker.

1. Magnetic field generation: The permanent magnets (or excitation coils) inside the platform generate a strong and stable constant magnetic field.

2. Alternating force generation: A moving coil (coil) placed in a magnetic field is fed with alternating current provided by a power amplifier. According to Faraday's law of electromagnetic induction and Ampere's force formula (F=BIL), an energized coil will experience an alternating force (Lorentz force) proportional to the current in a magnetic field.

3. Vibration transmission: This alternating force drives the table rigidly connected to the moving coil, causing it to reciprocate according to the laws of input electrical signals (such as sine waves and random waves), thereby accurately converting electrical energy into mechanical vibration energy.

4. Closed loop control: The acceleration sensor installed on the table detects vibration signals in real time and feeds them back to the controller. The controller compares this feedback signal with a pre-set target signal and adjusts the output signal to the power amplifier in real time, forming a closed-loop control to ensure the accuracy of the table vibration.

六、 重要性

The importance of small electromagnetic vibration tables in modern industry and scientific research is self-evident. It is a key tool for improving product quality and reliability. By simulating and accelerating the vibration stress that products may encounter in actual use and transportation in the laboratory, design defects and process weaknesses can be exposed early, avoiding product failures in the market and saving huge after-sales maintenance costs and brand reputation losses. At the same time, it also accelerates the research and development cycle and verifies theoretical modelsThe means provide a solid experimental foundation for technological innovation.

7、 Meet the standards

The design and testing capabilities of this type of equipment can meet or support numerous international, national, and industry standards, including:

• IEC 60068-2-6: (International Electrotechnical Commission) Basic standard for sinusoidal vibration test.

• IEC 60068-2-64: (International Electrotechnical Commission) Basic standard for random vibration testing.

• MIL-STD-810G: Environmental Engineering Considerations and Laboratory Testing Methods.