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Browse Prior Art Database

Contiguous Disk Multiple Cycle Expander-Detector

IP.com Disclosure Number: IPCOM000047112D
Original Publication Date: 1983-Sep-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 60K

Publishing Venue

IBM

Related People

Hannon, DM: AUTHOR

Abstract

As shown in Fig. 1, the contiguous-disk multiple cycle expander-detector 1 has an array of conductors 2 connected in parallel and in an array of thin permalloy stripes 4 positioned 1/4 period in front of the conductors 2. The contiguous-disk propagation structure 6 cuts across both the conductor 2 array and the permalloy 4 array. The thin film sensor 10 is positioned as shown. A bubble 8 is propagated as a stripe (not shown). The main body of the stripe (not shown) is propagated by a combination of poles from bipolar current in the conductors 2 and poles from the permalloy 4 under the influence of the rotating field. The left end of the bubble stripe (not shown) moves along the structure 12 while the right end of the bubble stripe moves along the contiguous-disk structure 6.

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Contiguous Disk Multiple Cycle Expander-Detector

As shown in Fig. 1, the contiguous-disk multiple cycle expander-detector 1 has an array of conductors 2 connected in parallel and in an array of thin permalloy stripes 4 positioned 1/4 period in front of the conductors 2. The contiguous-disk propagation structure 6 cuts across both the conductor 2 array and the permalloy 4 array. The thin film sensor 10 is positioned as shown. A bubble 8 is propagated as a stripe (not shown). The main body of the stripe (not shown) is propagated by a combination of poles from bipolar current in the conductors 2 and poles from the permalloy 4 under the influence of the rotating field. The left end of the bubble stripe (not shown) moves along the structure 12 while the right end of the bubble stripe moves along the contiguous-disk structure 6. The left end structure 12 may be a permalloy structure, for example, C-bars 14 as shown in Fig. 2, or it may be a contiguous-disk structure.

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