Pressure Fundamentals
Definition, Mathematical Formulas
Traceability
Key Terminology
Vapor Pressure, Saturation Water Vapor Pressure, Relative Humidity, Dalton's Law, Dew Point, Frost Point, Supercooled Water, Absolute Humidity, Mixing Ratio, PPM by Volume, PPM by Weight, Enthalpy, Pressure Effects
Specification
Vapor Pressure, Saturation Water Vapor Pressure, Relative Humidity, Dalton's Law, Dew Point, Frost Point, Supercooled Water, Absolute Humidity, Mixing Ratio, PPM by Volume, PPM by Weight, Enthalpy, Pressure Effects
Humidity Measuring Instruments
Wet and Dry Bulb Psychrometers, Theory, Operating Principles
Chilled Mirror Hygrometer Theory; Principles in Chilled Mirror-Peltier Cooling, Dew Point Depression, Slew Rate, Platinum RTD
CM Operation and Maintenance; Dew Point Measurement, Contamination, Dew or Frost,
Sampling, Pressure Effects
Sensors
Displacement, Bulk Polymer Resistive,Capacitive, Saturated Salt Lithium Chloride,
Aluminum Oxide Dew Point, Piezo-Resonance
Accuracy of the Measurement
Error Sources; Conformity, Hysteresis, Dead Band, Repeatability Kelvin Effect, Raoult Effect
Calibration
Two Pressure Humidity Calibration, Two Pressure Principle, RH Generator,
Computer Controlled System
Measurement Uncertainty |
|