Optimal measurement procedures for a dew point hygrometer system

Author

Jachowicz, Ryszard S. ; Makulski, Witold J.

Author_Institution

Inst. of Electron. Fundamentals, Warsaw Univ. of Technol., Poland

Volume

42

Issue

4

fYear

1993

fDate

8/1/1993 12:00:00 AM

Firstpage

828

Lastpage

833

Abstract

Optimal measurement and control procedures with adaptive algorithms based on dynamically evaluated output signals for operating a dew point hygrometer are discussed. The influence of dew condensation and evaporation time constants and the amplitude of mirror overheating and overcooling, as well as limits of the flow rate of the measured gas and the thickness of the dew layer upon dew point detection and the accuracy of the dynamically measured mirror temperature, are described. Flow diagrams for computer procedures and schematic diagrams of electronic measurement systems are included

Keywords

computerised instrumentation; hygrometers; optimal control; physical instrumentation control; temperature control; adaptive algorithms; cooling; dew condensation; dew point detection; dew point hygrometer; dynamically evaluated output signals; dynamically measured mirror temperature; electronic measurement systems; evaporation time constants; flow rate; measured gas; mirror overheating; optimal measurement; overcooling; temperature control; Fluid flow measurement; Heat pumps; Mirrors; Temperature control; Temperature measurement; Thermoelectricity; Thickness measurement; Time measurement; Velocity measurement; Water heating;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.234493

Filename

234493