In order to improve the design of male/female cocoon detection system with fluorescent character,the design method is given. The visible light sensor LX1970 is adopted to acquire the fluorescent information of cocoons,and the comparator LM339 is used for designing signal voltage differential circuit. The stability and application convenience of this system is improved greatly. The design method of hardware and the structure of the signal acquisition system are given. The average fluorescent voltage of male and female cocoon are obtained, and the experiment results are analyzed properly. /%针对荧光示性蚕茧,改进设计蚕茧雌雄检测系统.由可见光传感器LX1970采集蚕茧的荧光信息,利用比较器LM339设计信号电压鉴别电路,提升系统性能的稳定性与应用方便性.给出了荧光激发与采集装置的结构与系统的硬件设计方法,进行了蚕茧荧光电压测试实验,得出雌雄蚕茧荧光电压的均值,并对实验结果做了适当分析.
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