摘要
基于320×256长波面阵红外探测器的结构、输出信号特点及工作要求,设计了由偏置电压产生电路、信号预调理电路、时序驱动电路构成的焦面电路。其中偏置电压产生电路的设计,同时实现了固定偏置电压以及可调偏置电压的设计,增强了焦面电路设计的灵活性。在详细介绍焦面电路各部分的设计方案后,依据设计方案实现焦面电路板制作,并对其进行时序波形的仿真以及硬件电路测试。结果表明,该电路能够驱动红外探测器正常工作并对探测器输出模拟信号实现前级调理,设计方案合理可行,具有一定的工程实践意义。
According to the structure、output signal characteristics and working demands of 320 × 256 long‐wave area array infrared detector ,a focal plane circuit is introduced .The designed circuit consists of bias voltage engender circuit , signal pre‐processing circuit and sequence driving circuit .The bias voltage engender circuit not only achieves the design of fixed bias voltages ,but also achieves adjustable bias voltage’s design ,which enhances the flexibility of this circuit . In this paper ,the designed circuit is simulated and tested after the detailed introduction of every part ’s designing scheme and completed the plating of the circuit .Simulation and test results show that the circuit could drive this infrared detector to work normally and could achieve the output analog signal ’s pre‐processing .This design idea of focal plane circuit for 320 × 256 long‐wave area array infrared detector is feasible and meaningful .
作者
薄姝
王华
李涛
Bo Shu Wang Hua Li Tao(Beijing Institute of Space Mechanic and Electricity, Beijing 100094, China)
出处
《电子测量技术》
2016年第9期20-25,共6页
Electronic Measurement Technology
关键词
红外探测器
焦面电路
偏置电压
信号预调理
时序驱动
infrared detector
focal plane circuit
bias voltage
signal pre-processing
sequence driving
