| Popis: |
Impulse coupling coefficient Cm is one of the most important performance parameters in laser propulsion. Cm is the impulse increment of lightcraft that per joule laser beam energy acts on. The TEA CO2 laser, whose single pulse energy is 100‐Joule‐class and wavelength is 10.6μm, is adopted by experimental research. In experimental environment cabin, the parabolic lightcraft is fixed on impact pendulum. Using Air, N2, He, CO2, N2‐He and N2‐CO2, different Cm is obtained. Experimental results indicate that Cm of the mixed gas is improved through changing gas component ratio. |
