Briefly describe the overall structure of the vibration table

Shaking table is the most widely used vibration equipment. It is used to test the vibration resistance of large-sized furniture such as large furniture, household appliances, office furniture, and vibration test after the product is packaged to simulate the transportation. It is used to evaluate the vibration resistance of the product.

    The vibration table can be controlled automatically or manually, and the acceleration wave is well-opened. It is suitable for generating random waves and can obtain large acceleration. The electric vibration table is designed according to the principle of electromagnetic induction. When the current-carrying conductor itself is subjected to a force in a constant magnetic field, vibration will be generated when the conductor is exposed to a strong alternating current. The drive coil of the shaker formally forms itself in a gap of high magnetic induction. When the required vibration signal is generated from the signal generator or vibration controller and amplified by the power amplifier and then passed to the drive coil, the shaker table will need to be generated. Vibration waveform.

Shaker drive coil current generation methods are direct and inductive, direct type is the amplifier output current directly to the drive coil, this method is the main shaker. Inductive type is to pass the alternating current into the fixed coil, and then inductively generate current in the drive coil. Induction vibrator drive coils do not require outgoing cables. The structure is simple, but the efficiency of this shaker is relatively low. Therefore, most of the company's products use direct-type, which can solve the problem of the drive coil cable and make the product more practical.