{
  "$type": "site.standard.document",
  "description": "An inertial measurement apparatus includes a first gyro sensor that has a detection axis set in the direction of a first axis, is driven at a first drive frequency, and detects angular velocity around the first axis, a second gyro sensor that has a detection axis set in the direction of a second…",
  "path": "/patents/1289066",
  "publishedAt": "2021-04-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C19/5776",
    "Seiko Epson Corporation"
  ],
  "textContent": "An inertial measurement apparatus includes a first gyro sensor that has a detection axis set in the direction of a first axis, is driven at a first drive frequency, and detects angular velocity around the first axis, a second gyro sensor that has a detection axis set in the direction of a second axis, is driven at a second drive frequency, and detects angular velocity around the second axis, a third gyro sensor that has a detection axis set in the direction of a third axis, is driven at a third drive frequency, and detects angular velocity around the third axis, and a substrate on which the first, second, and third gyro sensors are provided. The natural vibration frequency of the substrate is set at a frequency that does not coincide with any of fd, fd, and fd, where fd, fd, and fd represent the first, second, and third drive frequencies.",
  "title": "INERTIAL MEASUREMENT APPARATUS, ELECTRONIC INSTRUMENT, AND MOVING OBJECT"
}