Magnetic rotary encoder system having a multi-element magnetoresistive sensor
A magnetic rotary encoder system includes a magnetoresistive sensor having a magnetoresistive element array which is selectively connected to accommodate a number of different diameter encoder wheels each wheel of which contains a different number of pieces of magnetic information recorded at corres...
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| creator | CARMEN RALPH CAMPBELL PETER |
| description | A magnetic rotary encoder system includes a magnetoresistive sensor having a magnetoresistive element array which is selectively connected to accommodate a number of different diameter encoder wheels each wheel of which contains a different number of pieces of magnetic information recorded at corresponding different wavelengths. A sensing and conditioning circuit is coupled to the magnetoresistive sensor and detects changes in resistance of the magnetoresistive elements when a magnetic field produced by a magnetic pole causes the magnetoresistive resistance to drop. Output signals are provided in quadrature to increase the resolution of the system. |
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| subjects | ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS BASIC ELECTRONIC CIRCUITRY CODE CONVERSION IN GENERAL CODING DECODING ELECTRICITY MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING |
| title | Magnetic rotary encoder system having a multi-element magnetoresistive sensor |
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