Air cushion rail/precision air cushion rail model: QTQG-T (2 meters)

Air cushion guide rail is a mechanical experimental device with low resistance. It uses a gas source to inject compressed air into the guide rail cavity, and then sprays the airflow through small holes on the surface of the guide rail, forming a thin air film between the guide rail and the slider, floating the slider up and allowing it to move in a nearly frictionless straight line on the guide rail, greatly reducing the large errors caused by friction in previous mechanical experiments, making the experimental results close to theoretical values, and making the experimental phenomena more realistic, intuitive, and easy for students to accept.

By using air cushion rails, various motion laws of objects can be observed and studied under approximately no resistance. It is matched with the QF-MUJ series computer universal counter or QF-J0201 series computer timer produced by our factory, as well as a small gas source, and can be used for research on average speed and instantaneous speed, acceleration measurement of uniform acceleration motion, and uniform linear motion; Verify Newton's second law; Research on the laws of conservation of kinetic energy and mechanical energy (elastic collision, inelastic collision); General kinematic and mechanical experiments such as harmonic vibration of spring oscillators are suitable for physics grouping experiments or demonstration teaching in universities, vocational schools, and key high schools.

Main technical parameters

1. Length of guide rail working surface: 1.2 meters, 1.5 meters, 2 meters

2. Straightness of guide rail: The total length error shall not exceed 0.10mm, and within any 400mm range, it shall not exceed 0.05mm

3. Angle of guide rail working surface: 90 °

4. Average arithmetic deviation value of the surface contour of the guide rail: not greater than 3.2 μ m

5. Surface hardness of guide rail: not less than HB65

6. Outer diameter of guide rail inlet: 30mm

7. Glider floating height: Under the condition of working pressure not less than 5.8kpa and a large load-bearing mass equal to three times the weight of the slider, it shall not be less than 0.10mm

8. Weight of guide rail machine: 4.5kg (1.2m), 7kg (1.5m), 9kg (2m)

9. Working environment temperature: 0-40 ℃ Relative humidity ≤ 85%