GB1023238A - Improvements in or relating to hygrometric devices - Google Patents

Improvements in or relating to hygrometric devices

Info

Publication number
GB1023238A
GB1023238A GB34594/62A GB3459462A GB1023238A GB 1023238 A GB1023238 A GB 1023238A GB 34594/62 A GB34594/62 A GB 34594/62A GB 3459462 A GB3459462 A GB 3459462A GB 1023238 A GB1023238 A GB 1023238A
Authority
GB
United Kingdom
Prior art keywords
transformer
winding
sept
wick
hygroscopic element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB34594/62A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell Inc
Original Assignee
Honeywell Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honeywell Inc filed Critical Honeywell Inc
Publication of GB1023238A publication Critical patent/GB1023238A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • G01N27/121—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid for determining moisture content, e.g. humidity, of the fluid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

1,023,238. Measuring electrically. HONEYWELL Inc. Sept. 10, 1962 [Sept. 12, 1961], No. 34594/62. Heading G1N. A hygrometric device, of the type in which a hygroscopic element is heated to a temperature dependent upon atmospheric humidity, is supplied with heating current from a source having a drooping voltage regulation characteristic. A bifilar winding 51, 52 is wound on a lithium chloride saturated wick 50 carried by a steel former 41. The winding is connected to the secondary of a transformer 24 whose primary is fed through terminals 15, 20. A nylon plug member 42 seals tube 13, containing the hygroscopic element, from case 10 containing the transformer. A bulb 55 inside former 41 forms part of the temperature responsive system, which may actuate a humidity control apparatus. The transformer has a drooping voltage/ current characteristic so that when the unit is switched on while the wick is very moist the winding is not overheated.
GB34594/62A 1961-09-12 1962-09-10 Improvements in or relating to hygrometric devices Expired GB1023238A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US137592A US3175400A (en) 1961-09-12 1961-09-12 Humidity control apparatus having an energy limiting power source

Publications (1)

Publication Number Publication Date
GB1023238A true GB1023238A (en) 1966-03-23

Family

ID=22478157

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34594/62A Expired GB1023238A (en) 1961-09-12 1962-09-10 Improvements in or relating to hygrometric devices

Country Status (2)

Country Link
US (1) US3175400A (en)
GB (1) GB1023238A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3416356A (en) * 1965-12-17 1968-12-17 Vapor Corp Dew point hygrometer
US3465591A (en) * 1967-07-13 1969-09-09 Christian Bachem Humidity measuring device
US3630084A (en) * 1969-09-09 1971-12-28 Texas Instruments Inc Comfort index indicator
US3844832A (en) * 1971-07-08 1974-10-29 P Gabrusenok Method of manufacturing a hydrosensitive element for a humidity sensitive device
US5533393A (en) * 1995-01-13 1996-07-09 Honeywell Inc. Determination of dew point or absolute humidity

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2359278A (en) * 1941-02-12 1944-10-03 Foxboro Co Method and apparatus for determining the concentration of moisture in materials
US2754378A (en) * 1951-12-26 1956-07-10 American Instr Co Inc Humidity detector for packages
US2756295A (en) * 1953-08-24 1956-07-24 Gen Motors Corp Humidity sensing devices

Also Published As

Publication number Publication date
US3175400A (en) 1965-03-30

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