激光双曝光全息干涉技术在测取柴油机压缩温度场中的应用

Measuring the Temperature Distribution in a Real Engine Chamber during Compression Stroke by Laser Double Exposure Holographic Interferometry

缸内压缩温度对柴油机的着火与燃烧有着重要影响，本文介绍用双曝光全息干涉法测取柴油机压缩温度场的基本原理及实验过程，在实际发动机中测取了压缩过程中缸内的温度分布及变化历程，为柴油机压缩过程缸内温度分布的定量测量提供了一种新的方法。

In this paper, the temperature field and its variations in the chamber at variant crank angles in a real diesel engine during compression stroke have been quantitatively measured by laser double exposure holographic interferometry technique. The theory and method have been introduced. Hence, a new method has been developed. A useful tool and technique have been provided and developed for the researching and analyzing the distribution of temperature in the chamber durillg compression stroke.