Chilled Mirror Hygrometers

Baker Hughes chilled mirror hygrometers from HMA INSTRUMENTATION are used in standards and metrology laboratories, as well as in industrial applications, where precise and repeatable humidity measurement and control is required. The inherent accuracy and long-term stability provide many advantages over other types of humidity measurement technologies. Chilled mirrors fundamentally measure the dew or frost point temperature directly by controlling a reflective surface to an equilibrium temperature between dew/frost formation and evaporation, and precisely measuring the temperature of the mirror at this point.