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分析表明,环境恒温的激光能量计所探测的能量可用下式表述: Q=E[T_F-T_1+ (T-T_( ))dt] (1)式中,E是能量计的校准常数,T_1和T_F分别是能量计在外界能量输入前(通常称为前测期)t_I和输入后(经过一段时间,遵从指数形式冷却,称为后测期)t_F时刻的输出, 是冷却常数。在电能或光能输入后不久,能量计通常应该遵照牛顿冷却定律冷却,它的输出变化形式如下: dT/dt=- (T-T_∞) (2)式中T_∞是dT/dt=0时或充分稳定后观测到的温度,将上式积分并将积分常数取在前测期
The analysis shows that the energy detected by the constant temperature laser energy meter can be expressed as: Q = E [T_F-T_1 + (T-T_ (dt) dt] (1) where E is the calibration constant of the energy meter, T_F are the energy meter output before external energy input (usually called the pre-measurement period) t_I and after the input (after a period of time, follow the exponential cooling, called the post-measurement period) t_F moment, is the cooling constant. Shortly after the input of electric energy or light energy, the energy meter should generally be cooled according to the Newton’s cooling law. Its output changes as follows: dT / dt = - (T-T_∞) (2) Where T_∞ is dT / dt = 0 Or fully stable observed temperature, the above integral and the integral constant taken in the previous measurement period