GB1166260A - Improvements in or relating to Apparatus for Measuring or Responsive to Radio Frequency Power. - Google Patents

Improvements in or relating to Apparatus for Measuring or Responsive to Radio Frequency Power.

Info

Publication number
GB1166260A
GB1166260A GB3803266A GB3803266A GB1166260A GB 1166260 A GB1166260 A GB 1166260A GB 3803266 A GB3803266 A GB 3803266A GB 3803266 A GB3803266 A GB 3803266A GB 1166260 A GB1166260 A GB 1166260A
Authority
GB
United Kingdom
Prior art keywords
sphere
film
measuring
aug
resistance
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
GB3803266A
Inventor
Donald Woods
Kenneth Alfred Fletcher
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.)
MINI OF TECHNOLOGY
WAYNE KERR CO Ltd
Minister of Technology
Original Assignee
MINI OF TECHNOLOGY
WAYNE KERR CO Ltd
Minister of Technology
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 MINI OF TECHNOLOGY, WAYNE KERR CO Ltd, Minister of Technology filed Critical MINI OF TECHNOLOGY
Priority to GB3803266A priority Critical patent/GB1166260A/en
Publication of GB1166260A publication Critical patent/GB1166260A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Magnetic Variables (AREA)

Abstract

1,166,260. Power measurement. MINISTER OF TECHNOLOGY and WAYNE KERR CO. Ltd. Aug.10, 1967 [Aug.24, 1966], No. 38032/66. Heading G1U. An apparatus for measuring r.f. radiation power flux incorporates a resistive film supported on a non conductive substrate and formed as a hollow sphere, with a tube leading from the interior of the sphere to a movable liquid drop arrangement or transducer responding to the expansion or pressure respectively of the gas in the sphere, which changes in accordance with the heating produced in the resistive film by the r.f. radiation when incident on it. The film has a resistance of at least 2000 ohms per, square, and the substrate has a loss factor (tan #) less than 0À005. The film may be deposited on the outside of a silica sphere, in which case a further sphere is provided to shield the apparatus from the effect of ambient changes, air currents &c. or may be vapour deposited on the inside of two polyurethane hemispheres which are subsequently fitted together. An outer shield is not required with this second arrangement. The film is preferably formed from a nickel chromium alloy and has a resistance of 20, 000 ohms per square.
GB3803266A 1966-08-24 1966-08-24 Improvements in or relating to Apparatus for Measuring or Responsive to Radio Frequency Power. Expired GB1166260A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3803266A GB1166260A (en) 1966-08-24 1966-08-24 Improvements in or relating to Apparatus for Measuring or Responsive to Radio Frequency Power.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3803266A GB1166260A (en) 1966-08-24 1966-08-24 Improvements in or relating to Apparatus for Measuring or Responsive to Radio Frequency Power.

Publications (1)

Publication Number Publication Date
GB1166260A true GB1166260A (en) 1969-10-08

Family

ID=10400724

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3803266A Expired GB1166260A (en) 1966-08-24 1966-08-24 Improvements in or relating to Apparatus for Measuring or Responsive to Radio Frequency Power.

Country Status (1)

Country Link
GB (1) GB1166260A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5159264A (en) * 1991-10-02 1992-10-27 Sematech, Inc. Pneumatic energy fluxmeter
US5159267A (en) * 1990-09-28 1992-10-27 Sematech, Inc. Pneumatic energy fluxmeter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5159267A (en) * 1990-09-28 1992-10-27 Sematech, Inc. Pneumatic energy fluxmeter
US5159264A (en) * 1991-10-02 1992-10-27 Sematech, Inc. Pneumatic energy fluxmeter

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees