The air cushion vibration isolation platform utilizes the principle of air static pressure to fill high-pressure gas into the air cushion below the platform, causing the platform to float on the cushion and achieve isolation from the ground. When there is external vibration, the air cushion can effectively absorb and buffer these vibrations, prevent them from being transmitted to the platform, and ensure the stability of the platform. It is also equipped with a negative feedback control system. The system monitors the vibration of the platform in real-time through sensors and transmits signals to the controller. The controller automatically adjusts the air pressure inside the air cushion based on the magnitude and direction of the vibration signal to generate a force opposite to the vibration, further offsetting the impact of the vibration and achieving high-precision vibration isolation effect.

Measurement steps for air cushion vibration isolation platform:

1. Preparation work:

-Place the air cushion vibration isolation platform on a flat, dry, and vibration free site, and ensure that it is placed horizontally.

-Check the integrity of the platform and air cushion to ensure there is no damage or air leakage.

2. Install sensors:

-Install acceleration sensors at appropriate positions on the isolation platform to measure the vibration of the platform.

-Ensure that the sensor is securely installed and in good contact with the testing point.

3. Incentive source setting:

-Choose appropriate sources of motivation, such as impact hammers or vibrators.

-Place the excitation source at a specific location on the vibration isolation platform and ensure that it can effectively excite the vibration of the platform.

4. Data collection:

-Connect the data acquisition system, including signal conditioners, data acquisition cards, etc.

-Set appropriate sampling frequency and collection time to ensure accurate capture of the vibration signal of the platform.

-Start collecting data and recording the vibration response of the isolation platform under different operating conditions.

5. Data processing and analysis:

-Process the collected data, including filtering, denoising, and other operations, to improve the accuracy and reliability of the data.

-Calculate key parameters such as transmission rate and natural frequency of the vibration isolation platform, and evaluate its vibration isolation performance.

-Based on the test results, determine whether the isolation platform meets the design and usage requirements.

6. Report writing:

-Organize test data and analyze results, and write detailed test reports.

-The report should include the testing objectives, testing methods, testing results, conclusions, and recommendations.