Abstract
Based on Mach-Zehnder optical interference model, a digital real-time holographic interferometric experimental system was set up. A new diffusion cell specially for measuring binary gas diffusion coefficient was designed and constructed. The experimental theory of measuring binary gas diffusion coefficient and the interference fringe processing method based on difference of object wave's phase was introduced in detail. On this base, the diffusion coefficients of H2, CH4 and O2 in air at T=273.15 K and p=0.1 MPa were measured. By comparing with literature data, the validity of the experimental system was verified, and this laid a solid foundation for the measurement of diffusion coefficient of binary gases in the future.
| Original language | English |
|---|---|
| Pages (from-to) | 369-372 |
| Number of pages | 4 |
| Journal | Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics |
| Volume | 31 |
| Issue number | 3 |
| State | Published - Mar 2010 |
Keywords
- Binary gas diffusion coefficient
- Experimental method
- Holographic interferometry
- Phase detection