GB672869A - Improvements in or relating to responsive devices associated with electric vapour-filled discharge devices - Google Patents

Improvements in or relating to responsive devices associated with electric vapour-filled discharge devices

Info

Publication number
GB672869A
GB672869A GB1897047A GB1897047A GB672869A GB 672869 A GB672869 A GB 672869A GB 1897047 A GB1897047 A GB 1897047A GB 1897047 A GB1897047 A GB 1897047A GB 672869 A GB672869 A GB 672869A
Authority
GB
United Kingdom
Prior art keywords
relating
vapour
saturated
filling
filled discharge
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
GB1897047A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB1897047A priority Critical patent/GB672869A/en
Publication of GB672869A publication Critical patent/GB672869A/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
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/02—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/56—Investigating or analyzing materials by the use of thermal means by investigating moisture content
    • G01N25/58—Investigating or analyzing materials by the use of thermal means by investigating moisture content by measuring changes of properties of the material due to heat, cold or expansion

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material 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)

Abstract

672,869. Hygrometric apparatus. GENERAL ELECTRIC CO., Ltd., and CLACK, B. N. Feb. 15, 1950 [July 16, 1947], No. 18970/47. Class 97 (iii). [Also in Groups XXXVI, XXXVIII and XL (a)] A discharge tube 1 is filled with a saturable vapour, so that when it is cooled the current therethrough suddenly drops at the temperature at which the filling is saturated. A meter or other responsive device 8 is used to determine the drop in current. The device may be used to indicate whether ambient temperature is above or below that at which the filling is saturated. If the filling is a sample, the temperature at which it is saturated can be determined to indicate the humidity of the vapour from which the sample was drawn.
GB1897047A 1947-07-16 1947-07-16 Improvements in or relating to responsive devices associated with electric vapour-filled discharge devices Expired GB672869A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1897047A GB672869A (en) 1947-07-16 1947-07-16 Improvements in or relating to responsive devices associated with electric vapour-filled discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1897047A GB672869A (en) 1947-07-16 1947-07-16 Improvements in or relating to responsive devices associated with electric vapour-filled discharge devices

Publications (1)

Publication Number Publication Date
GB672869A true GB672869A (en) 1952-05-28

Family

ID=10121567

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1897047A Expired GB672869A (en) 1947-07-16 1947-07-16 Improvements in or relating to responsive devices associated with electric vapour-filled discharge devices

Country Status (1)

Country Link
GB (1) GB672869A (en)

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