Electricity: measuring and testing – Magnetic – Displacement
Patent
1986-02-20
1988-02-16
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Magnetic
Displacement
324166, 324173, G01B 730, G01P 348
Patent
active
047257776
ABSTRACT:
A motion measurement device, more particularly designed for measurement of a rotation of a body around an axis. This device comprises a coded wheel drivably connected to said body for rotation and comprising a plurality of holes regularly distributed around said axis. Said holes are binary digits and for one digit is constituted by a simple hole passing through the wheel and, for the other, an open hole connected to the nearest edge of said wheel by a narrow slit. A sensor placed on the path of the holes and comprising two coils facing one another allows determination of the distance travelled by the moving body connected to said coded wheel. The speed and acceleration of the moving body can also be determined.
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Edmonds Warren S.
Eisenzopf Reinhard J.
Matra Transport
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