为了满足对能量光度标准计量器具(用于激光辐射平均功率计量器具和脉冲激光辐射能量计量器具的要求,研制成ПИ-4和ПИ-5型热电式一次测量变换器,它们分别用于单个激光脉冲平均功率和能量的测量。ПИ-4和ПИ-5型变换器在结构上是相同的,它们的接收装置示于图1。该变换器的接 In order to meet the energy photometric standard measuring instruments (for the average laser power measurement instruments and pulsed laser radiation energy measurement equipment requirements, developed into the type II and type I-type thermoelectric measurement transducers, respectively, for a single laser Pulsed average power and energy measurements. The ИИ -4 and ИИ 5 converters are structurally identical and their receiving arrangement is shown in Figure 1. The connection of the converter