China Wholesale semiconductor refrigeration Factories – LEAT-1 Air Specific Heat Ratio Apparatus – Labor

Main experimental contents
1. measuring the ratio of constant pressure specific heat capacity to constant volume specific heat capacity of air, i.e. specific heat capacity ratio γ.
2. understanding the principles and methods of sensors for accurate measurement of gas pressure and temperature.
3, use AD590 to design digital thermometers with different resolutions.
Main technical parameters
1, gas storage cylinder: maximum volume of 10L, consisting of a glass bottle, inlet piston, and rubber plug, filling system.
2, the use of diffusion silicon pressure sensor to measure the gas pressure, the measurement range is greater than the ambient air pressure 0 ~ 10KPa, sensitivity ≥ 20mV / Kpa, display system using three-and-a-half digit voltmeter.
3, integrated temperature sensor using LM35, the instrument corresponds to a temperature measurement resolution of 0.01 ℃.
4, increased the anti-air leakage device, the rubber plug will not loosen.
5、Improved the structure of the air release valve, using axial micro-action push-pull hand valve, stroke 8-9mm, can be quickly deflated, and because only a small operating force is required, and the interface can be free from air leakage.