TY - JOUR
TI - A relative humidity calibration from 5°C to 45°C in a mixed-flow humidity generator
AU - Milošević Nenad D
AU - Stepanić Nenad M
AU - Babić Marijana M
JN - Thermal Science
PY - 2012
VL - 16
IS - 1
SP - 193
EP - 205
PT - Article
AB - The paper presents a method used in the Vinča Institute of Nuclear Sciences  for a reliable and traceable relative humidity calibration in the temperature  range from 5°C to 45°C. Inside a controllable temperature and humidity  environment, supplied by a mixed-flow humidity generator, measurements of  hygrometers under calibration are compared with those of calibrated reference  instruments. A traceability chain from temperature to reference relative  humidity and next to the hygrometers under calibrations is provided by using  a chilled-mirror dew-point temperature system and precise relative humidity  probes. Corresponding calibration uncertainties are analyzed, particularly  those associated to the temperature uniformity of controlled calibration  environment. Two examples of relative humidity calibration with dew-point and  relative humidity reference measurements in the range from 15 to 75% of RH  and 5°C to 45°C are presented and discussed.