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ELECTRICAL
RESOLVER The Resolver allows angular position data to be transmitted electrically in remote locations. Resolvers are electro-mechanical analog converters which, through electromagnetic means, gives an electrical output that is a function of its rotor position or positions its rotor to an angle that is a function of the electrical input. Electrical resolver has a two-phase rotor and a two-phase stator. When used as a: RESOLVER TRANSMITTER, one phase of the rotor is excited and the other phase shorted to ground. A resolver transmitter converts a mechanical input (rotor position) into an electrical output. Input data, in the form of rotor angular displacement “a” degrees, results in a corresponding two-phase electrical output at the stator. The output voltage is proportional to the angular position of the rotor with respect to the stator. When used as a: RESOLVER CONTROL TRANSFORMER, the two-phase stator receives angular input data from a transmitter in the form of concise stator voltages. The output is obtained from one rotor phase and the second rotor phase is symmetrically loaded to avoid unbalances. The electrical output of the control transformer is amplified and applied to a servomotor, which drives the load and the transformer rotor to the null position. The output voltage is proportional to the angular position of the rotor with respect to the stator. When used as a: RESOLVER DIFFERENTIAL, the two-phase stator receives angular input data from a transmitter in the form of concise stator voltages. The rotor then modifies and re-transmits this data such that it corresponds to the algebraic sum of the electrical input angle and the relative rotor angle. Synchros and Resolvers are manufactured in the following forms:
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