GB1108083A - Measurement of power loss in electrical sheet steel and the like - Google Patents

Measurement of power loss in electrical sheet steel and the like

Info

Publication number
GB1108083A
GB1108083A GB1654664A GB1654664A GB1108083A GB 1108083 A GB1108083 A GB 1108083A GB 1654664 A GB1654664 A GB 1654664A GB 1654664 A GB1654664 A GB 1654664A GB 1108083 A GB1108083 A GB 1108083A
Authority
GB
United Kingdom
Prior art keywords
yokes
sheet steel
april
electrical sheet
loss
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
GB1654664A
Inventor
Frederick John Wilkins
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB1654664A priority Critical patent/GB1108083A/en
Publication of GB1108083A publication Critical patent/GB1108083A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
    • G01R33/123—Measuring loss due to hysteresis

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

1,108,083. Electromagnetic tests. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 20, 1965 [April 21, 1964], No. 16546/64. Heading G1N. An electromagnetic testing head for measuring the power-loss in electrical sheet steel comprises at least three identical C-shaped magnetic yokes preferably potted in resin, and having coplanar pole faces to engage the sheet and matching magnetising windings on each yoke, whereby the outer yokes act as guard yokes to minimize fringe effects, and a substantially uniform flux is produced over a precisely defined area by the inner yoke or yokes. A search coil on the inner yoke is connected to a measuring bridge Fig. 7, (not shown), or a thermal watt-meter circuit Fig. 8, (not shown), and the small known loss in the testing head is subtracted from the total measured.
GB1654664A 1964-04-21 1964-04-21 Measurement of power loss in electrical sheet steel and the like Expired GB1108083A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1654664A GB1108083A (en) 1964-04-21 1964-04-21 Measurement of power loss in electrical sheet steel and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1654664A GB1108083A (en) 1964-04-21 1964-04-21 Measurement of power loss in electrical sheet steel and the like

Publications (1)

Publication Number Publication Date
GB1108083A true GB1108083A (en) 1968-04-03

Family

ID=10079271

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1654664A Expired GB1108083A (en) 1964-04-21 1964-04-21 Measurement of power loss in electrical sheet steel and the like

Country Status (1)

Country Link
GB (1) GB1108083A (en)

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