摘要
介绍热释电红外传感器的工作原理和性能,分析热释电红外传感器的信号输出特性,设计基于此类传感器的前置滤波放大电路,并使用单片机进行经过电路放大后的脉冲信号的分析,完成对人体运动的检测。使用Altium Designer 6.9对前置滤波放大电路进行软件仿真,以验证该放大电路的有效性和可靠性。
Introduces the working principle and performance of pyroelectric infrared sensor, and analyses the characteristics of pyroelectric infrared sensor signal output, then designs an preamplifier based on this type of sensor, and uses the microcontroller for analysis of the amplified signal to finish the detection of human motion. Uses Ahium Designer 6.9 to simulate the preamplifier, verifies the validities and reliability of the preamplifier.
出处
《现代计算机》
2012年第7期43-46,68,共5页
Modern Computer
关键词
热释电
红外传感器
放大电路
电路仿真
单片机
Pyroeletric
Infrared Sensor
Amplifier Circuit
Circuit Simulation
Microcontroller
