Intrinsically Safe Infrared Thermometer for Belt Conveyors
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摘要: 为了解决煤矿井下带式输送机测温仪存在准确性和可靠性差等问题，本文提出了一种带式输送机本质安全型红外测温仪设计方案，采用MLX90614红外传感器和STM32F103C8T6处理器设计了其硬件；在Keil 5.14开发平台上，采用C语言设计了其软件。并进行了实验，结果表明该红外测温仪测温范围-20℃~380℃，分辨率高，测温准确，温度测量精度为±0.5℃，可实现非接触测量，且不易损坏、可靠性高，可广泛应用于煤炭、矿山、港口、电力、冶金、化工等领域。
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关键词:
- 带式输送机 /
- 红外 /
- 本质安全型 /
- 测温仪 /
- MLX90614红外传感器
Abstract: In order to solve the problems of accuracy and poor reliability of the belt conveyor temperature detector in coal mines, this paper proposes a design scheme for the intrinsically safe infrared thermometer of the belt conveyor. The hardware is designed using MLX90614 infrared sensor and STM32F103C8T6 processor; on Keil 5.14 development platform, the software is designed in C language. And conducted experiments, the results show that the infrared thermometer has a temperature range of (20℃-380℃, high resolution, accurate temperature measurement, temperature measurement accuracy of ±0.5℃, non-contact measurement, not easy to damage, high reliability, can be widely used in coal, mines, ports, electric power, metallurgy, chemical industry and other fields.-
Key words:
- belt conveyor /
- infrared /
- intrinsically safe /
- thermometer /
- MLX90614 infrared sensor
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图 9 示波器采集的温度传感器数据采集模块时序信号
Figure 9. Time sequence signal of temperature sensor data acquisition module collected by oscilloscope
图 10 测温仪与被测物体之间的安装示意图
Figure 10. Installation diagram between the thermometer and the object to be measured
图 11 测温仪测量温度与电机表面实际温度对比
Figure 11. The temperature measured by the thermometer is compared with the actual temperature of the motor surface
图 12 频率量输出值与温度值对应关系
Figure 12. Correspondence between frequency output values and temperature values
图 13 温度值与4~20 mA电流输出对比
Figure 13. Comparison of temperature value with 4-20 mA current output
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