POSITION-SENSING DEVICE

Title:

POSITION-SENSING DEVICE

Document Type and Number:

WIPO Patent Application WO/1982/000880

Kind Code:

A1

Abstract:

In a position-sensing device in which a magnetic field generated by applying a driving pulse to a driving coil is applied to a magnetostrictive delay line so as to generate a magnetostrictive vibration on the magnetostrictive delay line and then a sensing coil equipped adjacently to the magnetostrictive delay line senses the magnetostrictive vibration, the driving pulse formed in the driving coil is detected and then the interval between the time of the above detection and the time when the sensing coil senses the magnetostrictive vibration is measured. The position-sensing device gives a wide measuring range and a preferably high sensing accuracy.

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Inventors:

YOSHIDA K (JP)
SHIKAKURA K (JP)
SAKANO A (JP)
TAMARU H (JP)
TADAMA M (JP)

Application Number:

PCT/JP1981/000196

Publication Date:

March 18, 1982

Filing Date:

August 27, 1981

Export Citation:

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Assignee:

SONY CORP (JP)
YOSHIDA K (JP)
SHIKAKURA K (JP)
SAKANO A (JP)
TAMARU H (JP)
TADAMA M (JP)

International Classes:

G06F3/041; G01B7/004; G01D5/48; (IPC1-7): G01D5/48; G01D5/12

Foreign References:

JPS5576908A	1980-06-10
JP4001008B
JPS5329757A	1978-03-20
JPS54115154A	1979-09-07
JPS54116954A	1979-09-11

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