Sap Flow Sensors: Construction, Quality Control and Comparison

被引：37
|
作者：
Davis, Tyler W. [1 ]
Kuo, Chen-Min [1 ,2 ]
Liang, Xu [1 ]
Yu, Pao-Shan [2 ]
机构：
[1] Univ Pittsburgh, Dept Civil & Environm Engn, Pittsburgh, PA 15261 USA
[2] Natl Cheng Kung Univ, Dept Hydraul & Ocean Engn, Tainan 70101, Taiwan
来源：
SENSORS | 2012年 / 12卷 / 01期
基金：
美国国家科学基金会;
关键词：
environmental sensors; heat ratio method; thermal dissipation method; sap flow; SOIL-WATER; FOREST; TREES; REDISTRIBUTION;
D O I：
10.3390/s120100954
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
This work provides a design for two types of sensors, based on the thermal dissipation and heat ratio methods of sap flow calculation, for moderate to large scale deployments for the purpose of monitoring tree transpiration. These designs include a procedure for making these sensors, a quality control method for the final products, and a complete list of components with vendors and pricing information. Both sensor designs were field tested alongside a commercial sap flow sensor to assess their performance and show the importance for quality controlling the sensor outputs. Results show that for roughly 2% of the cost of commercial sensors, self-made sap flow sensors can provide acceptable estimates of the sap flow measurements compared to the commercial sensors.
引用
收藏
页码：954 / 971
页数：18
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