Difference between revisions of "Hygrometer"

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Any of several instruments used for measuring atmospheric humidity. Some types of hygrometers are:
 
Any of several instruments used for measuring atmospheric humidity. Some types of hygrometers are:
  
1) [[psychrometer]] - measures the temperature difference between a wet-bulb and a dry-bulb thermometer. A sling psychrometer is mounted in a frame, then whirled in the air for ventilation.
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* [[psychrometer]] - measures the temperature difference between a wet-bulb and a dry-bulb thermometer. A sling psychrometer is mounted in a frame, then whirled in the air for ventilation.
 
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* [[Hair hygrometer|hair hygrometer]] - measures the expansion and contraction of a human hair that is mounted under tension. A gold beater's skin hygrometer uses a proteinaceous membrane for the same type of measurement.
2) [[Hair hygrometer|hair hygrometer]] - measures the expansion and contraction of a human hair that is mounted under tension. A gold beater's skin hygrometer uses a proteinaceous membrane for the same type of measurement.
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* dew-point hygrometer - measures the temperature for the formation and evaporation of dew that is observed using a photoelectric cell.
 
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* diffusion hygrometer - measures the diffusion of water vapor through a porous membrane.
3) dew-point hygrometer - measures the temperature for the formation and evaporation of dew that is observed using a photoelectric cell.
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* [[lithium chloride hygrometer]] - measures the temperature and electrical conductivity of a hygroscopic salt that becomes conductive when it absorbs water.
 
 
4) diffusion hygrometer - measures the diffusion of water vapor through a porous membrane.
 
 
 
5) [[lithium chloride hygrometer]] - measures the temperature and electrical conductivity of a hygroscopic salt that becomes conductive when it absorbs water.
 
  
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
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dial hygrometer; hair hygrometer; dew-point hygrometer; diffusion hygrometer; lithium chloride hygrometer; liquid crystal hygrometer; hygrometr (Ces.); Hygrometer (Dan., Deut., Ned., Sven.); hygromètre (Fr.); higrómetro (Port.)
 
dial hygrometer; hair hygrometer; dew-point hygrometer; diffusion hygrometer; lithium chloride hygrometer; liquid crystal hygrometer; hygrometr (Ces.); Hygrometer (Dan., Deut., Ned., Sven.); hygromètre (Fr.); higrómetro (Port.)
  
== Sources Checked for Data in Record ==
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==Resources and Citations==
  
 
* Boise Cascade Paper Group, ''The Paper Handbook'', Boise Cascade, Portland OR, 1989
 
* Boise Cascade Paper Group, ''The Paper Handbook'', Boise Cascade, Portland OR, 1989
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* ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998
 
* ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998
  
* Wikipedia, the free encyclopedia, at http://www.wikipedia.com  Comment: http://en.wikipedia.org/wiki/Hygrometer (Accessed Jan. 15, 2006)
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* Wikipedia: http://en.wikipedia.org/wiki/Hygrometer (Accessed Jan. 15, 2006)
  
  
  
 
[[Category:Materials database]]
 
[[Category:Materials database]]

Revision as of 14:53, 14 September 2022

General Eastern Digital Thermo-hygrometer

Description

Any of several instruments used for measuring atmospheric humidity. Some types of hygrometers are:

  • Psychrometer - measures the temperature difference between a wet-bulb and a dry-bulb thermometer. A sling psychrometer is mounted in a frame, then whirled in the air for ventilation.
  • Hair hygrometer - measures the expansion and contraction of a human hair that is mounted under tension. A gold beater's skin hygrometer uses a proteinaceous membrane for the same type of measurement.
  • dew-point hygrometer - measures the temperature for the formation and evaporation of dew that is observed using a photoelectric cell.
  • diffusion hygrometer - measures the diffusion of water vapor through a porous membrane.
  • Lithium chloride hygrometer - measures the temperature and electrical conductivity of a hygroscopic salt that becomes conductive when it absorbs water.

Synonyms and Related Terms

dial hygrometer; hair hygrometer; dew-point hygrometer; diffusion hygrometer; lithium chloride hygrometer; liquid crystal hygrometer; hygrometr (Ces.); Hygrometer (Dan., Deut., Ned., Sven.); hygromètre (Fr.); higrómetro (Port.)

Resources and Citations

  • Boise Cascade Paper Group, The Paper Handbook, Boise Cascade, Portland OR, 1989
  • Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
  • Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
  • Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
  • The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998

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