一种基于蓝牙的微机多道γ能谱仪设计

Design of Microcomputer Multi-Channel γ Spectrometer Based Bluetooth

为了解决强辐射情况下的环境监测问题,提出了一种基于蓝牙通信的微机多道γ能谱仪设计.介绍了该能谱仪的组成,概述了蓝牙的优势及通信原理,对γ能谱仪标定进行了解析,讨论了γ能谱仪的一项特殊性能指标,并说明了LabVIEW对γ能谱数据处理的过程.其特点是:利用蓝牙将便携式γ能谱仪的能谱数据无线传送给能谱处理计算机,便携式γ能谱仪采用低功耗采集电路设计,能谱处理计算机采用LabVIEW虚拟平台开发人机界面及能谱数据处理,双方利用串口RS485完成蓝牙模块电路的接口设计.通信距离在10 m之内数据传输与能谱分析安全可靠.

In order to solve the problem of environmental monitoring under the condition of intense radiation, a microcomputer-based multi-channel γ spectrometer with Bluetooth communication is proposed, This paper introduces the construction of the γ spectrometer, presents the characteristics of Bluetooth and the principle of communication, and analyzes the calibration of the γ spectrometer. A special performance index of the γ spectrometer is discussed, and the process of γ spectrum data processing by LabVIEW is illustrated. The merits of the design are as follows： spectrum data of the portable γ spectrometer is transmitted over the wireless link to the energy spectrum processing computer by using Bluetooth communication technology; the portable γ spectrometer is designed with low-power data acquisition circuit; LabVIEW virtual developing platform is employed in the energy spectrum processing computer to develop human-computer interface and spectrum data processing; the two terminals use serial ports to implement the interface of Bluetooth module circuit; data transmission and energy spectrum analysis are safe and reliable within the communicating distance of 10 m.