Abstract
In order to measure the transient temperature of gas, a laser interferometry was applied. When the density of gas changes, the effective optical path length of the test beam changes with a corresponding change of the refractive index. The change in temperature of the gas therefore can be determined by measuring the pressure and the shift of the interference fringes with a pair of phototransistors. In this study, examples of the temperature change measurement of the gas owing to only the expansion, to the compression and expansion with a piston motion, and to the compression with flame propagation were described. It is recognized that interferometry is a useful method for the measurement of the transient temperature of the gas in the field of combustion research.
| Original language | English |
|---|---|
| Pages (from-to) | 247-251 |
| Number of pages | 5 |
| Journal | JSME International Journal, Series B: Fluids and Thermal Engineering |
| Volume | 32 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1989 |
| Externally published | Yes |
ASJC Scopus subject areas
- Mechanical Engineering
- Physical and Theoretical Chemistry
- Fluid Flow and Transfer Processes