For the angle θ, we can define the side opposite θ as y2-y1, the side adjacent to θ as x2-x1, and the hypotenuse as R. This inductively couples to the sine and cosine windings, and hence generating an output voltage with a magnitude that varies as the sine or cosine, respectively, of the angular position of the input shaft relative to some zero point.Ĭonsider a right triangle defined by the points (x1,y1), (x2,y1), and (x2,y2) as shown in fig.2.An AC voltage applied to the reference winding in the rotor.The basic function of a resolver is to resolve a vector into its sine and cosine components.These secondary windings are designated as the sine winding and the cosine winding. The rotor carries the primary winding. The stator carry the two secondary winding displaced angularly offset with respect to one another by 90°.Stator is the stationary part and rotor is revolving part. It discusses the theory of operation of data converter products (synchro, resolver, and linear variable differential transformer LVDT), performance parameters, and design factors for typical applications. The resolver consist of stator and rotor. The Synchro/Resolver Conversion Handbookis designed as a practical reference source.A resolver is a special type of rotary transformer that couples voltage from an primary (input) winding into two secondary (output) windings with a magnitude that varies as a function of angular position.
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