GB648450A - Improvements in radio-frequency wattmeters - Google Patents

Improvements in radio-frequency wattmeters

Info

Publication number
GB648450A
GB648450A GB2680749A GB2680749A GB648450A GB 648450 A GB648450 A GB 648450A GB 2680749 A GB2680749 A GB 2680749A GB 2680749 A GB2680749 A GB 2680749A GB 648450 A GB648450 A GB 648450A
Authority
GB
United Kingdom
Prior art keywords
voltage
resistances
current
line
proportional
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
GB2680749A
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.)
ANTONY ROBERT HEATON
WACLAW STRUSZYNSKI
Original Assignee
ANTONY ROBERT HEATON
WACLAW STRUSZYNSKI
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 ANTONY ROBERT HEATON, WACLAW STRUSZYNSKI filed Critical ANTONY ROBERT HEATON
Priority to GB2680749A priority Critical patent/GB648450A/en
Publication of GB648450A publication Critical patent/GB648450A/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)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

648,450. Power measurements. HEATON. A. R., STRUSZYNSKI, W., and BUCKING- HAM, J. Oct. 19, 1949, No. 26807. [Class 37] A radio-frequency wattmeter for measuring the power flowing in a co-axial line 1, 2 comprises a current indicator M, Fig. 3, fed by a pair of oppositely connected square law detectors V1, V2, to both of which is applied a voltage from a resistance R1, R2 and thus proportional to the voltage, whilst equal and opposite voltages (proportional to the current) are applied from two equal resistances R, R in series with the line and earthed at their junction, the line being coiled helically to form chokes 3, Fig. 1, to prevent the unearthed ends of the resistances R being at earth potential for r.f. The resistances R, R preferably consist of carbon rods 10, Fig. 2, connected between the outer conductor 6 and an earthed ring 9. The meter measures EI cos #, # being the phase angle between the current I and the voltage E. Stray capacity Co, Fig. 3, is compensated by a trimming condenser C across R2 so that R1Co=R2C.
GB2680749A 1949-10-19 1949-10-19 Improvements in radio-frequency wattmeters Expired GB648450A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2680749A GB648450A (en) 1949-10-19 1949-10-19 Improvements in radio-frequency wattmeters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2680749A GB648450A (en) 1949-10-19 1949-10-19 Improvements in radio-frequency wattmeters

Publications (1)

Publication Number Publication Date
GB648450A true GB648450A (en) 1951-01-03

Family

ID=10249544

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2680749A Expired GB648450A (en) 1949-10-19 1949-10-19 Improvements in radio-frequency wattmeters

Country Status (1)

Country Link
GB (1) GB648450A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027514A (en) * 1951-05-05 1962-03-27 Bird Electronic Corp Electrical wave indicator for high frequency lines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027514A (en) * 1951-05-05 1962-03-27 Bird Electronic Corp Electrical wave indicator for high frequency lines

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