正确选择辐射接收器件是任何热象系统有效地工作的必要条件,而光电接收器的质量标准常以下式表达:Q=Δlnλ_有效D_m~＊(1-e~(-τ/T))(1)式中,τ——输入脉冲的最小脉宽;T——光电接收器的时间常数。但这种质量标准有若干缺点。1.事实上,式(1)是假定系统的灵敏度阈值,可通过选择接收器达最小,Q值达最大,但它取决于脉宽为τ的输入脉冲的小尺寸辐射源。式中括号内的因子完全决定着 Correct choice of radiation receiving device is a necessary condition for any thermal imaging system to work effectively, and the quality standard of photoelectric receiver is often expressed as: Q = Δlnλ_ effective D_m ~ * (1-e ~ (-τ / T)) ( 1) Where, τ - the minimum pulse width of the input pulse; T - time constant photoelectric receiver. However, there are several drawbacks to this quality standard. 1. In fact, Eq. (1) assumes the sensitivity threshold of the system, which can be minimized by choosing the receiver with the largest Q, but it depends on the small-size emitter with an input pulse of pulse width τ. The factors in the brackets completely determine