Tools of the Trade
June 2003
Hollow shaft resolver
Tyco Electronics' line of hollow shaft resolvers is suited to monitor motor shaft position in hostile environments and maintain performance over long periods. The resolver consists of a stator and a rotor and operates like two transformers: one supplies the rotor with power while the other determines the motor shaft angle. A resolver-to-digital converter is used to process the output signals of these two transformers into absolute motor shaft angle data. A full line of hollow shaft resolvers for industry standard frame sizes 15 and 21 are available in various housing materials such as aluminum and Cr-Ni steel. Maximum rotational speed is 20,000 rpm.
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