The air specific heat ratio experimental instrument is a multifunctional teaching platform that integrates thermodynamics, gas laws, and energy conversion research. This experiment uses a thermal engine device to subject air to adiabatic compression and expansion processes through the harmonic vibration of a piston inside a cylinder. The specific heat capacity ratio (γ) of air is determined using the periodic oscillation relationship of pressure over time. Suitable for university physics, engineering thermodynamics courses, and research pre research, it reveals the correlation between gas microstructure and macroscopic properties, understands thermodynamic processes, infers physical quantities from experimental data, and connects actual experiments with physical theories.
Experimental Overview
Experimental study on specific heat capacity of airYi is a multifunctional teaching platform that integrates thermodynamics, gas laws, and energy conversion research. This experiment uses a thermal engine device to subject air to adiabatic compression and expansion processes through the harmonic vibration of a piston inside a cylinder. The specific heat capacity ratio (γ) of air is determined using the periodic oscillation relationship of pressure over time. Suitable for university physics, engineering thermodynamics courses, and research pre research, it reveals the correlation between gas microstructure and macroscopic properties, understands thermodynamic processes, infers physical quantities from experimental data, and connects actual experiments with physical theories.
Experimental Content
Product Features
Built in high-precision wireless pressure sensor, supporting Type-C direct connection or Bluetooth wireless connection
Adopting a transparent and visible thermal device: integrated piston cylinder and sensor interface module, allowing for intuitive observation of piston vibration status
Adopting quick release pneumatic circuit: 1/4 rotation locking interface, pressure sensor connection completed in 3 seconds
SmartLab data analysis software: high-precision acquisition and generation of pressure change curves, and calculation of gas specific heat ratio (γ) through fitting
experimental data

Curve of pressure variation with time during vibration process
Essential accessories for digital experiments
| No |
model |
description |
quantity |
| 1 |
YSW-5004 |
SmartLAB data analysis software |
1 |
| 2 |
XSC-4406 |
smart terminal |
1 |