Abstract
A two-temperature humidity generator has been developed at the Centre for Metrology and Accreditation (CMA) in order to have a reliable humidity standard. The system has been tested and the analysis of uncertainty has been carried out. The disturbance of the saturation equilibrium, the accuracy of temperature measurements, pressure differences, leaks, desorption and contamination have been investigated. The measurement range of the system is from -40 to +60°C with an uncertainty of less than ±0.25°C (k = 2). The system was found suitable to be used as the CMA humidity standard.
| Original language | English |
|---|---|
| Pages (from-to) | 183-188 |
| Number of pages | 6 |
| Journal | Measurement |
| Volume | 17 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1 Jan 1996 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- Analysis of uncertainty
- Dew-point
- Humidity standard
- Saturation
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The CMA humidity standard. / Heinonen, Martti.
In: Measurement, Vol. 17, No. 3, 01.01.1996, p. 183-188.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - The CMA humidity standard
AU - Heinonen, Martti
PY - 1996/1/1
Y1 - 1996/1/1
N2 - A two-temperature humidity generator has been developed at the Centre for Metrology and Accreditation (CMA) in order to have a reliable humidity standard. The system has been tested and the analysis of uncertainty has been carried out. The disturbance of the saturation equilibrium, the accuracy of temperature measurements, pressure differences, leaks, desorption and contamination have been investigated. The measurement range of the system is from -40 to +60°C with an uncertainty of less than ±0.25°C (k = 2). The system was found suitable to be used as the CMA humidity standard.
AB - A two-temperature humidity generator has been developed at the Centre for Metrology and Accreditation (CMA) in order to have a reliable humidity standard. The system has been tested and the analysis of uncertainty has been carried out. The disturbance of the saturation equilibrium, the accuracy of temperature measurements, pressure differences, leaks, desorption and contamination have been investigated. The measurement range of the system is from -40 to +60°C with an uncertainty of less than ±0.25°C (k = 2). The system was found suitable to be used as the CMA humidity standard.
KW - Analysis of uncertainty
KW - Dew-point
KW - Humidity standard
KW - Saturation
UR - http://www.scopus.com/inward/record.url?scp=0030108676&partnerID=8YFLogxK
U2 - 10.1016/0263-2241(96)00026-7
DO - 10.1016/0263-2241(96)00026-7
M3 - Article
AN - SCOPUS:0030108676
VL - 17
SP - 183
EP - 188
JO - Measurement
JF - Measurement
SN - 0263-2241
IS - 3
ER -