采用热电探测器对CO_2激光快速探测的新方法

针对大功率CO2 激光光束光斑质量诊断仪对大功率激光截面强度分布测量的要求 ,设计了一种新的光热电转换电路 ,得到了高增益的快速光热电转换 ,响应时间比常规方法短一个量级。满足了对大功率激光功率分布的检测。此光热电转换电路适于采用热释电探测器快速响应的应用

A New Method for CO_2 Laser Quick Detecting by Pyroelectric Detector

According to the requirement of high power laser beams and beam focus diagnostic instrument for measuring laser transverse intensity distribution, a new method of CO 2 laser rapid detecting by pyroelectric detector is given. The rapid response of photoelectric transformation with large enough gain is obtained. The response time is shorter than a magnitude comparing with common method. The detector can operate in normal room temperature, and need no cooling set. The photoelectric transformation system satisfies the measurement requirement of high power laser density cross section distribution. The method can be employed for application concerning with rapid response of pyroelectric detector. Key word: high power CO 2 laser; pyroelectric detector; photoelectric transformation reducing cost by analysis of cost beneficial result.At the same time,the traditional cost management concept should be changed and activity based cost management be adopted to meet the needs of modern science and technology.