【摘要】 介绍了一种基于分子印记压电传感器的痕量爆炸物探测系统,包括检测电路、测量电路、显示控制电路等。文中设计的频率测量程序准确测量传感器输出的频率差信号,检测电路提取频率差值并传送给MSP430单片机系统,系统对该频率信号进行捕获和计算,确定有结合量后可进行显示和报警。本文介绍了系统的软硬件设计,并进行了实验,结果验证了所设计的系统能够很好的完成测量要求。更多还原

【Abstract】 The design of a molecularly imprinted piezoelectric sensor-based trace explosives detection system including a detection circuit,measuring circuit,the display control circuit.Frequency measurement procedures designed to accurately measure the frequency difference of the sensor output signal,the detection circuit to extract the frequency difference and send it to the MSP430 microcontroller system,then the system of the frequency signal capture and calculations to determine the binding capacity of the display and alarm.This article describes the system hardware and software design,and experimental results verify the design of the system can complete the measurement requirements.更多还原