UEI manufactures a wide variety of analog and digital IO boards, including ones for Synchro/Resolvers, LVDTs, and RVDTs. What to know about common misconceptions of synchro signals? Click to read the blog post below. It is considered an analog device, and has digital counterparts such as the digital resolver, rotary (pulse) encoder. The name resolver comes from resolving an angular input in to its x and y components. Resolver: Type of rotary electrical transformer used for measuring degrees of rotation. The voltages are measured and used to determine the angle of the rotor relative to the stator. The primary winding of the transformer, fixed to the rotor, is excited by an alternating current causes voltages to appear between the Y-connected secondary windings fixed spatially at 120 degrees to each other on the stator. In its general physical construction, it is much like an electric motor. Synchros are often used for measuring the angle of a rotating machine or in case of selsyn (self-synchronous) configuration, used for controlling position of a device. Synchro: Transducer that uses a transformer whose primary-to-secondary coupling may be altered by changing the relative orientation of the two windings. Synchro/Resolver Tutorial Guide QUICK LINKS
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