West E D, Case W E, Rasmussen A L, Schmidt L B
Institute for Basic Standards, National Bureau of Standards, Boulder, Colorado 80302.
J Res Natl Bur Stand A Phys Chem. 1972 Jan-Feb;76A(1):13-26. doi: 10.6028/jres.076A.002.
Principles and detailed procedures are described for measuring laser energy and power in terms of electrical energy based on voltage, resistance, and frequency standards. The construction of a small isoperibol calorimeter used for the measurements is described. The calorimeter will accommodate 0.01 to 20 J and 4 × 10 to 1 W cw and is limited to a maximum pulse intensity of 0.1 J/cm. The standard deviation of comparison measurements using two calorimeters and a beam splitter is 0.08 percent when the smaller energy input is not less than 0.3 J. The estimated limits of systematic error for one calorimeter are ± 1.0 percent of the laser energy measured by the calorimeter.
描述了基于电压、电阻和频率标准以电能来测量激光能量和功率的原理及详细程序。介绍了用于测量的小型等压热量计的构造。该热量计可容纳0.01至20焦耳以及4×10至1瓦连续波，且最大脉冲强度限制为0.1焦耳/平方厘米。当较小能量输入不小于0.3焦耳时，使用两个热量计和一个分束器进行比较测量的标准偏差为0.08%。一个热量计的系统误差估计极限为该热量计所测量激光能量的±1.0%。
