Global Top 14 Companies Accounted for 47% of total Resolvers market (QYResearch, 2021) (Business Opportunities - Home Business)
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Global Top 14 Companies Accounted for 47% of total Resolvers market (QYResearch, 2021) | |
A Resolver is an electromagnetic transducer (also called angle sensor), consists of a stator and a rotor that outputs rotational angles as two-phase AC voltages (analog signals). It features structurally high environmental resistance compared to other sensors due to its simple design comprised of only an iron core and a coil. The most common type of resolver is the brushless transmitter resolver. On the outside, this type of resolver may look like a small electrical motor having a stator and rotor. On the inside, the configuration of the wire windings makes it different. The stator portion of the resolver houses three windings: an exciter winding and two two-phase windings. The exciter winding is located on the top; it is a coil of a turning (rotary) transformer. This rotary transformer induces current in the rotor without wires or brushes to provide a direct electrical connection. The two other windings are on the bottom, wound on a lamination. They are configured at 90 degrees from each other. The rotor houses a coil, which is the secondary winding of the turning transformer, and a separate primary winding in a lamination, exciting the two two-phase windings on the stator. The primary winding of the transformer, fixed to the stator, is excited by a sinusoidal electric current, which by electromagnetic induction induces current in the rotor. As these windings are arranged on the axis of the resolver, the same current is induced no matter what its position. This current then flows through the other winding on the rotor, in turn inducing current in its secondary windings, the two-phase windings back on the stator. The two two-phase windings, fixed at right (90°) angles to each other on the stator, produce a sine and cosine feedback current. The relative magnitudes of the two-phase voltages are measured and used to determine the angle of the rotor relative to the stator. Upon one full revolution, the feedback signals repeat their waveforms. It can be used in a wide variety of position and velocity feedback applications which includes light duty/servo, light industrial or heavy duty applications. The global key manufacturers of Resolvers include Tamagawa Seiki, Hengstler, Shanghai Yingshuang Electric Machinery, MinebeaMitsumi, Moog, Ametek, LTN Servotechnik, TE Connectivity, Woodward, Honeywell, etc. In 2022, the global top five players had a share approximately 47.0% in terms of revenue. For more information, please contact the following e-mail address: Email: global@qyresearch.com Website: https://www.qyresearch.com  | |
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2024-11-21 (0.231 sec)