scholarly journals Uncertainly Analysis of Two Types of Humidity Sensors by a Humidity Generator with a Divided-Flow System

Sensors ◽  
2018 ◽  
Vol 18 (2) ◽  
pp. 637 ◽  
Author(s):  
Ling-Hsi Chen ◽  
Chiachung Chen
Keyword(s):  
Flow System ◽  
Humidity Sensors ◽  
Humidity Generator

scholarly journals Development of a divided-flow humidity generator and its use for studying low-temperature effects on radiosonde humidity sensors

2021 ◽  
Vol 30 (4) ◽  
pp. 243-249
Author(s):  
Eun-Jeong Jang ◽  
Young-Suk Lee ◽  
Byung-Il Choi ◽  
Yoonseuk Choi ◽  
Sang-Wook Lee
Keyword(s):  
Low Temperature ◽  
Temperature Effects ◽  
Humidity Sensors ◽  
Humidity Generator

scholarly journals Temperature effect in the calibration of capacitive humidity sensors

2018 ◽  
Vol 9 ◽  
pp. 9 ◽  
Author(s):  
Sergio A. Carvajal ◽  
Ciro A. Sánchez
Keyword(s):  
Temperature Dependence ◽  
Temperature Effect ◽  
Analysis Of Variance ◽  
Environmental Conditions ◽  
Temperature Influence ◽  
Humidity Sensors ◽  
Humidity Generator ◽  
Calibration Laboratories

Capacitive hygrometers are widely used in industrial and environmental measurements. One of the limitations of these sensors is their temperature dependence. While in temperatures beyond 50 °C the effect has been proven to be significant, for standard conditions in calibration laboratories the magnitude of this dependence has not been rigorously studied. This paper presents the analysis and results of a study of the temperature influence in the calibration of capacitive hygrometers designed for monitoring environmental conditions. Ninety measurements were taken on 15 models of capacitive hygrometers using a two-pressure humidity generator between 30%rh and 80%rh and temperatures from 20 to 30 °C. A three-way analysis of variance (ANOVA) was used to evaluate the data. The results show that the calibration correction is independent of the temperature for the conditions considered; however, there is a correlation between the temperature and the devices, indicating that the gradients in temperature affect each technology of fabrication in a different way.

Comparison of Optimal Pipe Sizing Designs for Pressurized Flow System

2018 ◽  
Vol 6 (8) ◽  
pp. 520-529
Author(s):  
Aanandsundar Arumugam ◽  
Gedion Habtay ◽  
Haben Kibrom ◽  
Medhanie Gebreamlak
Keyword(s):  
Flow System
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