激光光声法测量红外光窗材料吸收系数的研究

Research on measuring the coefficients of infrared window material by laser photoacoustic technique

本文介绍了以环形压电陶瓷片作换能器，利用激光光声技术测量红外光窗材料光学吸收系数的原理和方法。并用这种方法测量了几种红外光窗材料的吸收系数．实验表明：激光光声法比激光量热法简单快捷、数据可靠。这在光窗片的生产测试中有其实用价值。

In this paper,a method is introduced by which the absorption coefficients of window materials for infrared lasers can be measured by use of photoacoustic technique and circular piezoelectric transducer. Moreover theabsorption coefficients of several window materials for infrared lasers are detected experimentally. It is showed experimentally that this method is simpler,faster and more convenient in comparison with laser colorimetry.