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随着发光二极管(Light Emitting Diode,LED)应用需求的增加,对其电子束辐照效应的研究是目前的热点,因此需要设计一个数据获取系统,实时监测发光二极管性能参数在辐照过程中的变化。利用小电流计、功率计、光谱仪、低压电源等设备完成系统硬件搭建,以Lab VIEW为开发平台完成了对串行通讯接口RS-232、通用串行总线(Universal Serial Bus,USB)和局域网(Local Area Network,LAN)三种接口通信协议的软件实现,并进行数据存储和显示,在局域网内利用远程桌面连接实现远程监测。利用该系统完成了在1.5 Ge V电子束辐照过程中对Ga N光电特性参数和环境参数的实时采集、存储和显示。
With the increasing demand of Light Emitting Diode (LED) application, the research on its electron beam irradiation effect is a hot spot at present. Therefore, it is necessary to design a data acquisition system to monitor the performance parameters of the light emitting diode during irradiation Variety. The hardware of the system is completed by the devices such as low-current meter, power meter, spectrometer and low-voltage power supply. The hardware of RS-232, Universal Serial Bus (USB) and LAN Local Area Network, LAN) three kinds of interface communication protocol software implementation, and data storage and display in the LAN using remote desktop connection to achieve remote monitoring. The system realizes the real-time acquisition, storage and display of Ga N photoelectric properties and environmental parameters during 1.5 Ge V electron beam irradiation.