红外光学材料透过率温度特性测量方法

许荣国, 王雷, 阴万宏, 杨照金

许荣国, 王雷, 阴万宏, 杨照金. 红外光学材料透过率温度特性测量方法[J]. 应用光学, 2013, 34(6): 1000-1004.
引用本文: 许荣国, 王雷, 阴万宏, 杨照金. 红外光学材料透过率温度特性测量方法[J]. 应用光学, 2013, 34(6): 1000-1004.
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XU Rong-guo, WANG Lei, YIN Wan-hong, YANG Zhao-jin. Measuring method of temperature coefficient of infrared optical material transmittance[J]. Journal of Applied Optics, 2013, 34(6): 1000-1004.
Citation: XU Rong-guo, WANG Lei, YIN Wan-hong, YANG Zhao-jin. Measuring method of temperature coefficient of infrared optical material transmittance[J]. Journal of Applied Optics, 2013, 34(6): 1000-1004.
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红外光学材料透过率温度特性测量方法

  • 西安应用光学研究所,陕西 西安 710065

详细信息
    通讯作者:

    许荣国（1980-），男，陕西武功人，硕士，工程师，主要从事软件工程与光学计量工作。 Email:xrg1980@sina.com

  • 中图分类号: TN219

Measuring method of temperature coefficient of infrared optical material transmittance

  • Xi-an Institute of Applied Optics,Xi-an 710065,China

摘要

    摘要
  • 摘要: 提出了一种变温条件下红外光学材料透过率测量评价方法。研究内容包括使用准直反射镜将红外光源变为平行光，通过斩波器变为脉冲光，再经滤光片选择波长；使用平面反射镜组与精密温控炉来获得变温条件下的双光路：测试光路与参考光路。使用前置放大电路和锁相放大器对红外微弱信号进行检测，根据两个光路的测量电压计算样品的透过率及透过率温度系数。计算机实现自动控制、采集与相关运算。该方法解决了变温条件下红外光学材料透过率测量中的实际应用问题，使光学材料参数检测从常规检测扩展到高温等极端条件，更接近于材料的实际使用条件，蓝宝石材料在波长5195 nm处，透过率高于10%，温度从室温到700℃的范围内，重复性优于0.2%。
    Abstract: A new transmittance measurement and assessment method of the infrared optical material at diffident temperatures was proposed. A collimation reflect mirror was used to make the infrared light source into the parallel light, and then a chopper was used to make the continuous light into the pulse light, besides, a special wavelength was obtained by filter. A special data acquisition system that including a preamplifier circuit, a lock-in amplifier, a computer and a control software could calculate the value of infrared transmittance and give the temperature coefficient of the optical material by means of double light beam contrast measurement. The method resolved problems of infrared transmittance measurement of optical material in actual operational environment, like high temperature. Test result shows the transmittance of sapphire material is higher than 10% at the wavelength of 519 5 nm, and the repeatability is better that 0.2% from room temperature up to 700℃. The method has great economic and social utility.
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  • 刊出日期:  2013-11-14

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