{
  "abstract": "The provided is a rotational speed detection structure of an actuator and an actuator. The rotational speed detection structure of an actuator includes an outer housing, a motor, and a reducer mechanism, where the motor includes a stator and a rotor; a shaft sleeve is connected to the rotor; the reducer mechanism includes an input end connected to the rotor, and an output end connected to an encoder shaft; a first mounting surface is disposed on the encoder shaft; a second mounting surface is disposed on the shaft sleeve; a first magnetic ring is fixed on the first mounting surface; a second magnetic ring is fixed on the second mounting surface; a printed circuit board (PCB) is fixed on the outer housing; the PCB includes a third mounting surface; a first Hall element and a second Hall element are provided on the third mounting surface.",
  "assignees": [
    "FOURIER INTELLIGENCE INC"
  ],
  "authors": [
    "Xia hanyu",
    "ZHONG XUEGANG"
  ],
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    "name": "Creative Commons Attribution 4.0 International",
    "url": "https://creativecommons.org/licenses/by/4.0/"
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  "publication_id": "OT-2026-000001981",
  "published_at": "2026-09-15T19:09:57.185428Z",
  "publisher": "Nebula Innovations Limited",
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  "source_date": "2026-03-12",
  "source_id": "US-2026072054-A1",
  "source_name": "the United States Patent and Trademark Office",
  "source_url": "https://patents.google.com/patent/US2026072054A1",
  "supersedes": null,
  "title": "Rotational speed detection structure of actuator and actuator",
  "uuid": "01a0a679-d440-7588-bc36-89fb64519e65"
}