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Qingdao Senquan Optoelectronics Co., Ltd
Scientific usage skills sharing of air flotation vibration isolation platform
Date: 2025-10-23Read: 20
In the fields of precision optical experiments, scanning probe microscopy (SPM), electron microscopy, nanoindentation, laser interferometry, and high-precision metrology, vibration is the key factor affecting data accuracy. The air flotation vibration isolation platform uses compressed gas to form a micro scale air film between the platform and the base, effectively isolating low-frequency vibrations (1-30Hz) from the ground, equipment, or personnel movement, providing a stable environment for precision instruments. However, its performance is highly dependent on the correct installation and operation methods. Mastering the scientific usage techniques of the air flotation vibration isolation platform is the key to mastering it.
1、 Environmental selection
The platform should be placed in a laboratory area away from strong vibration sources such as large machinery, elevators, and air compressors. The ground needs to be solid, flat, and without obvious tilting. Avoid direct sunlight or direct air conditioning vents to prevent air disturbances caused by temperature gradients. Ensure there is sufficient operating space around to facilitate gas path connections and instrument layout.
2、 Horizontal adjustment
Use a high-precision level (division value ≤ 0.02mm/m) to adjust the adjustable support feet at the bottom of the platform, so that the tabletop reaches precise level in both X and Y directions. Excessive horizontal deviation can lead to uneven thickness of the gas film, affecting the floating height and vibration isolation effect, and even causing the platform to contact the base on one side.
3、 Gas source preparation
The air flotation platform requires clean, dry, and stable compressed air (usually at a pressure of 0.4-0.7MPa). Three level filters (for water, oil, and dust removal) and pressure regulating valves must be equipped to prevent impurities from blocking small pores or causing pressure fluctuations. It is recommended to use oil-free air compressors to avoid lubricating oil contamination of precision surfaces.
4、 Loading and Distribution
When placing the instrument, ensure that the total weight does not exceed the rated load-bearing capacity of the platform. The instrument should be arranged in the center as much as possible to avoid platform tilt caused by unbalanced load. Heavy equipment should be placed in the central area, with light accessories distributed around to maintain a balanced distribution of quality.
5、 Start up and float up
First, turn on the gas source and slowly open the intake valve to allow the platform to rise smoothly to the designed floating height (usually 5-20 μ m). Observe whether the platform is suspended smoothly, whether there is any shaking or partial touching. After the platform stabilizes (about 1-2 minutes), start the precision instrument for measurement.
6、 Operation, maintenance and safety
After the experiment, turn off the instrument power first, then slowly release the gas source to allow the platform to land smoothly;
Regularly check for air leaks in the air circuit joints and clean the filter element;
Keep the countertop clean to prevent metal debris or liquid from flowing into the pores;
It is strictly prohibited to perform impact operations such as tapping or drilling on the platform.
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