热电堆式热流传感器设计
摘要热流损失检测是评价节能减排的重要指标之一，而热流传感器作为检测热流密度的重要设备，就显得尤为关键。针对不同工作环境，需要各式各样的热流传感器进行热流密度的检测。本文就是根据要求设计一种简单可行的热流传感器。68293
本课题是基于热电堆式热流传感器的研究，通过实验寻找热电势高的廉价电阻丝作为热电材料，以高强度的板材作为基板材料，利用提高单位面积内的匝数、改善布线来提高热流传感器的分辨率及精确度。热流信号的处理通过放大电路和滤波调整电路来实现。标定方法则采用防护热板法和热流计法，获得自制传感器的分辨率和准确度等关键参数，对标定过程中热流达到稳定所需要的时间、工作环境的温度和传感器系数的关系以及导致实验误差的主要因素进行了探索。
毕业论文关键词： 热电堆 热流传感器 标定
毕业设计说明书（论文）外文摘要
Title Electric Pile Type Heat Flux Sensor Is Designed
Abstract
Heat loss detection is an important indicator for the evaluation of energy conservation, and heat sensors to detect heat flux as an important device, it is particularly critical. For perse work environments, you need a wide range of heat sensors to detect heat flux. This article is based on a simple and feasible to design heat flux sensors.
This topic is the study of the thermopile heat flux sensor based experiments to find cheap thermoelectric high resistance wire as thermoelectric materials with high strength sheet as a substrate material, the use of improved unit turns inside the area, improve the heat flux sensor wiring to improve the resolution and accuracy. Heat processing the signal through the amplifier circuit and the filter adjustment circuitry. Calibration method is adopted guarded hot plate and heat flow meter method to obtain the resolution and accuracy of key parameters such as homemade sensors for calibration process heat needed time to reach a stable relationship between the temperature coefficient of the sensor working environment and led to experiments the main sources of error are explored.
Keywords Thermopile Heat flux sensor Demarcate
目 次
1 引言 1
1.1 选题的背景和意义 1
1.2 热流传感器的分类 3
1.4 本论文的主要内容及结构安排 7
2 总体设计方案 8
2.1 总体设计要求 8
2.2 热电堆式热流传感器原理 8
2.4 本章小结 10
3 热电和基板材料的选择 11
3.1 热电极选材 11
3.2 基板材料 12
3.3 本章小结 13
4 热流传感器测头的制作 13
4.1 测头的线圈制作 13
4.2 测头电偶的制作