指使发射机产生规定调制的输入信号电压:如对调频发射机,调制灵敏度是指能产生最大允许频偏的60%的调制时1000Hz正弦输入信号电压,用mV或dB表示。 在通信原理角度看,调制灵敏度,就是已调载波的变化量与调制信号的比值。 调频:Hz/V; 调相:rad/V。
讨论了入射光谱分布对调制灵敏度的影响,以及波导电极直流偏置电压对保证调制灵敏度的作用。
The effect of the incident light spectrum and the waveguide electrode's DC bias voltage on the modulation sensitivity is discussed.
经理论分析及实验,获得近似于恒定的调制灵敏度,符合整机设计要求,在整机中显示出较好的效果。
By theoretical analysis and experiment, we obtain approximate constant modulation sensitivity, which fits for the overall design, and reach fairly good effect.
热型红外传感器应用广泛,它要求在室温条件下工作,在宽的调制频率范围内具有均匀的灵敏度。
Infrared thermal sensors are used in a wide variety of application which require room temperature operation and uniform sensitivity over a wide modulation frequency range.
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