電子相對濕度計之性能評估

The Evaluation of the Performance on the Electronic Relative Humidity Sensor

陳加忠(C.C. Chen) ； 賴建洲(C.T. Tsao) ； 曹之祖(C.C. Lai)

《中華農業研究》 40卷1期 (1991/03) Pp. 71-89

https://doi.org/10.29951/JARC.199103.0008

摘要

此研究利用飽和鹽溶液產生之相對濕度環境為標準值進行五種電子相對濕度計之性能評估。有關測定性能包括準確性、精密性，持久性與老化現象之影響。利用迴歸分析技術以建立適當的校正方程式。
實驗結果顯示電容式感應器對所有相對濕度範圍具有良好之精密性，然而電阻式感應器只在低和中範圍有效。電容式濕度計之最佳校正方程式為二次式，其準確性低於1.0%RH，電阻式濕度計之校正方程式為含四次式之多項式，誤差值於3.5% RH以上，在半年的連續使用情況下，電容式濕度計老化現象並不顯著。

關鍵字

電子相對濕度計 ； 校正方程式

並列摘要

The reading values of five-types electronic RH sensors at standard RH environment that produced by saturated salt solutions were used to test the performance of accuracy, precision, stability, and aging condition. The adequate calibration equation was estabilished by regression analysis technique.
The experimental results indicated the precision of Capacitive type sensor was good in the full of RH range, however, the Resistance type sensor only had good performance in the lower and medium RH range. The accuracy of Capacitive type sensor can be improved by quadratic calibration model. The S. E. values are below 1.0%RH. The adequate calibration model for Resistant type sensor inclued a four-degree polynomial eqnation. The accuracy is above 3.5% RH. The aging condition was not significant within a half year for Capacitive type sensors.

並列關鍵字

RH sensor ； Calibration model