{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "A vibration controller controls vibrations generated in a driven object included in a system subject to vibrations due to the dynamic unbalance or eccentricity of a rotating member driven for rotation by an electric motor. An angular position transforming unit (45) and an angular velocity…",
  "path": "/patents/1081799",
  "publishedAt": "2004-12-08T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F16F15/02",
    "TOSHIBA ELEVATOR KK [JP]"
  ],
  "textContent": "A vibration controller controls vibrations generated in a driven object included in a system subject to vibrations due to the dynamic unbalance or eccentricity of a rotating member driven for rotation by an electric motor. An angular position transforming unit (45) and an angular velocity transforming unit (47) transform the output signal of a rotating motion measuring means (Cl) into an angular position and an angular velocity, respectively. A sine calculating unit (55) calculates the sine of an angle obtained by adding up the angular position and a predetermined phase angle provided by a phase adjusting unit (49) by an adder (53). A multiplier (61) calculates the product of the output of a gain adjusting unit (57) that multiplies the output of the sine calculating unit (55) by a predetermined gain and the output of a multiplier (59) that calculates the square of the angular velocity. A gain adjusting unit (57') multiplies the output of a sine calculating unit (55') by a predetermined gain. An adder (68) adds up the respective outputs of the multiplier (61) the gain adjusting unit (57') and a specified torque calculating unit.",
  "title": "OSCILLATION ADJUSTER AND OSCILLATION ADJUSTING METHOD"
}