发明名称 |
Method and apparatus for measuring core loss of a laminated ferromagnetic structure |
摘要 |
A core loss tester employs separate cables for excitation and pickup. Testing is performed at a fixed flux density in the ferromagnetic core. A processing circuit on the output of the pickup coil scales the voltage developed so that, when excitation current is increased so that the indicated output of the pickup coil equals the effective cross-sectional area of the flux path, the fixed predetermined value of flux density is produced. When this condition is achieved, the excitation current times the sensed flux-induced voltage provides a measurement of the core loss in watts. Excitation is accomplished with a multi-conductor cable looped once or more times through the core with the conductors in the cable connected in series by mating together of a connector at each end.
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申请公布号 |
US4573012(A) |
申请公布日期 |
1986.02.25 |
申请号 |
US19830465830 |
申请日期 |
1983.02.14 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
BISSON, DONALD K.;NARDIN, STEVEN A. |
分类号 |
G01R33/12;(IPC1-7):G01R33/14 |
主分类号 |
G01R33/12 |
代理机构 |
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代理人 |
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地址 |
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