Browse Prior Art Database

Impulse Generator

IP.com Disclosure Number: IPCOM000096976D
Original Publication Date: 1962-Mar-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 33K

Publishing Venue

IBM

Related People

Imm, RA: AUTHOR

Abstract

A nonsymmetrical voltage waveform A is generated as magnetic flux, emanating from rotating vane 10, links one of a plurality of arcuately spaced coils 11. Each is wound about a core 12 fixed to project from a stationary support plate 13. Rotating vane 10 is fixed to shaft 14 which projects through bushing 15 and plate 13. Bushing 15 is attached to plate 13 and is embraced by energizing coil 16. Bushing 15 is of ferromagnetic material. Coil 16 is energized from a D.C. source, not shown.

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Impulse Generator

A nonsymmetrical voltage waveform A is generated as magnetic flux, emanating from rotating vane 10, links one of a plurality of arcuately spaced coils
11. Each is wound about a core 12 fixed to project from a stationary support plate 13. Rotating vane 10 is fixed to shaft 14 which projects through bushing 15 and plate 13. Bushing 15 is attached to plate 13 and is embraced by energizing coil 16. Bushing 15 is of ferromagnetic material. Coil 16 is energized from a D.C. source, not shown.

By this arrangement, coil 16 produces a magnetic field which permeates rotating vane 10. The head or tip of vane 10 is shaped so as to vary the reluctance of the magnetic path as 10 rotates. Additionally, core 12 is also shaped so that the rate of change of flux is substantially different when the vane 10 approaches the core 12 than it is upon departure. Hence, the resultant voltage waveform is nonsymmetrical. Vane 10 and core 12 have substantially complemental surfaces.

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