Evaluation of a low-cost temperature measurement system for environmental applications
Evaluation of a low-cost temperature measurement system for environmental applications
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DOI：
10.1002/hyp.5861
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发表时间：
2005-04-30
影响因子：
3.2
通讯作者：
Cobos, D
中科院分区：
文献类型：
--
作者：
Hubbart, J;Link, T;Cobos, D
Thermochron仪器采用了最新的数字技术，使它们比许多其他温度记录设备更小，更便宜，更耐用，更可靠。本研究的目的是测试一种廉价空气温度测量系统的准确性，该系统由Thermochron iButton和辐射屏蔽组成。对61个样本进行两次水浴（0 ℃和24.9 ℃），以评估传感器的绝对准确度。在温室环境中测试了五个太阳辐射屏蔽，以评估辐射加热的减少。在两种水浴处理分析之后，在仪器之间检测到显著差异（p < 0.05）。传感器的精度完全在制造商规定的1.0 ℃规格范围内，总体温度变化为+/- 0.21 ℃。在不同的辐射屏蔽中，由温时细胞产生的温度响应是一致的，但基于昼夜温度范围，在28至44摄氏度之间差异显著（p < 0.05）。结果表明，Thermochron羊肉是一个准确的，廉价的替代更昂贵的温度数据记录系统，非常适合获得高质量的空间分布数据的水文和水质调查。版权所有（c）2005年约翰威利父子有限公司。
Thermochron iButtons incorporate the latest in digital technology, making them smaller, less expensive, durable and potentially more reliable than many other temperature logging devices. The objective of this study was to test the accuracy of an inexpensive air temperature measurement system, composed of a Thermochron iButton and radiation shield. Sixty-one iButtons were subjected to a sequence of two water baths (0 degrees C and 24.9 degrees C) to assess the absolute accuracy of the sensors. Five solar radiation shields were tested in a greenhouse setting to evaluate the reduction in radiative heating. Significant differences (p < 0.05) were detected between instruments subsequent to both water-bath treatment analyses. The accuracy of the sensors was well within the manufacturer's stated specification of 1.0 degrees C with a collective temperature variance of +/- 0.21 degrees C. Temperature responses generated by the Thermochron iButtons in different radiation shields were consistent, but varied significantly (p < 0.05) from 28 to 44 degrees C based on diurnal temperature ranges. Results indicate that the Thermochron Mutton is an accurate, inexpensive alternative to more expensive temperature data-logging systems, and is well suited for obtaining quality spatially distributed data for hydrologic and water quality investigations. Copyright (c) 2005 John Wiley & Sons, Ltd.