Adjustable thrust electromagnetic vibration table

Adjustable thrust electromagnetic vibration table

Product Overview
Adjustable electromagnetic vibration table is a high-precision environmental and reliability testing equipment designed based on the principle of electromagnetic induction. Its core feature is that the output thrust can be accurately and flexibly adjusted within the rated range according to testing requirements, thus meeting the testing requirements of different weights and severity levels of specimens from small components to large components. This equipment is a key tool for modern industrial product development, quality control, and reliability verification.

working principle
The working principle of the equipment follows Ampere's law, which states that a current carrying conductor is subjected to force in a magnetic field. The dynamic coil (excitation coil) is placed in a strong constant magnetic field (generated by permanent magnets or DC excitation coils). When the power amplifier amplifies the driving signal (sine wave, random wave, or shock wave) generated by the controller and inputs it into the moving coil, the moving coil undergoes reciprocating motion due to electromagnetic force and transmits precise and controllable vibration excitation to the tested sample through the table.

Adjustable thrust electromagnetic vibration table

Main functions and features

• Adjustable thrust:The core function is to achieve stepless thrust adjustment by adjusting the driving current, making it versatile for one machine.

• Broadband operation:The working frequency range is wide, ranging from a few Hz to several thousand Hz.

• Multiple vibration modes:Support sine fixed frequency, sine sweep frequency, random vibration, and typical impulse waveform testing.

• High precision control:Adopting a closed-loop control system and equipped with high-sensitivity sensors to ensure the accuracy and stability of vibration values.

• Intelligent protection:It has multiple safety protection functions such as over displacement, over current, and over temperature.

Technical Features

• High reliability design:Adopting high-strength aluminum alloy tabletop and dynamic coil, optimized magnetic circuit structure, and good heat dissipation performance.

• Low distortion:Carefully designed suspension system and magnetic circuit ensure low waveform distortion.

• Digital control:A modern digital controller based on DSP, with intuitive operation and powerful analysis functions.

• Modular design:Easy to maintain and upgrade in the future.

Technical Specifications

• Rated thrust:For example, 2kN (adjustable range 10%~100%)

• Frequency range:5 Hz - 3000 Hz

• Acceleration:About 1000 m/s ² (unloaded)

• speedAbout 1.8 m/s

• Displacement:± 25 mm (peak to peak)

• Table size:Φ 300mm (customizable)

• Load capacity:About 100 kg

• Vibration direction:Vertical (or horizontal slide table optional)

Application scenarios
Widely used in fields such as aerospace, automotive electronics, weapons and ships, packaging and transportation, electronics and electrical appliances, universities, and research institutes. Specifically used for:

• Structural strength test:Identify the mechanical weaknesses and resonance frequency of the product.

• Fatigue life test:Simulate long-term vibration environment to assess product lifespan.

• Environmental Stress Screening (ESS):Eliminate products with early defects on the production line.

• Transportation simulation test:Evaluate the packaging protection performance according to ISTA, ASTM and other standards.

• Component reliability verification:Such as PCB boards, connectors, chips, etc.

structural design
Adopting a sturdy and rigid structure, it mainly consists of a base, magnetic circuit system (magnetic cylinder, excitation coil), moving coil, table top, suspension support (such as diaphragm), and cooling system. The overall structure is compact, with a stable center of gravity, ensuring smooth operation under high thrust and reducing non axial vibration to a low level.