Title:
DEVICE FOR DETECTING ABSOLUTE POSITION
Document Type and Number:
WIPO Patent Application WO/1986/000401
Kind Code:
A1
Abstract:
A device for detecting absolute position employs a resolver (106) as position detector means. An interpolated error corresponding to the rotational angle of the rotary shaft of the resolver (106) is stored in advance in a data memory which consists of a bubble memory (102h) in a numerically controlled apparatus (102). When an absolute position is to be detected, the interpolated error of the resolver (106) is read out from the memory, and an absolute position signal detected by the resolver (106) is corrected by the interpolated error thereby to detect a correct absolute position.
Inventors:
TOYODA KENICHI (JP)
SAKANO TETSURO (JP)
SAKAKIBARA SHINSUKE (JP)
TAKEKOSHI YOSHITAKA (JP)
SAKANO TETSURO (JP)
SAKAKIBARA SHINSUKE (JP)
TAKEKOSHI YOSHITAKA (JP)
Application Number:
PCT/JP1985/000361
Publication Date:
January 16, 1986
Filing Date:
June 26, 1985
Export Citation:
Assignee:
FANUC LTD (JP)
International Classes:
G01B7/00; G01D5/244; G01D5/245; G05B19/33; G05D3/12; (IPC1-7): G01D5/245
Foreign References:
| JPS4897561A | 1973-12-12 | |||
| JPS5614908A | 1981-02-13 | |||
| JPS5258554A | 1977-05-14 | |||
| JPS58137709A | 1983-08-16 | |||
| JPS5714717A | 1982-01-26 | |||
| JPS4879661A | 1973-10-25 |
Other References:
NITTA MATSUO, OMOTE RYOICHI (authors), "Denshi Kogaku Series", "Solid State Memory System no Sekkei", 5 June 1984 (05.06.84), Kosaido Sanpo Shuppan Kabushiki Kaisha, pages 82 to 113.
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