{
  "$type": "site.standard.document",
  "description": "An angular velocity detection element includes: a drive vibration arm configured to perform flexural vibration according to an applied drive signal; and a detection vibration arm configured to perform flexural vibration according to an applied angular velocity. Each of the drive vibration arm and…",
  "path": "/patents/1392637",
  "publishedAt": "2025-10-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C19/5642",
    "SEIKO EPSON CORP [JP]"
  ],
  "textContent": "An angular velocity detection element includes: a drive vibration arm configured to perform flexural vibration according to an applied drive signal; and a detection vibration arm configured to perform flexural vibration according to an applied angular velocity. Each of the drive vibration arm and the detection vibration arm has a bottomed groove portion along an extending direction. d2/t2 > d1/t1, in which t1 is a thickness of the drive vibration arm, d1 is a depth of the groove portion of the drive vibration arm, t2 is a thickness of the detection vibration arm, and d2 is a depth of the groove portion of the detection vibration arm.",
  "title": "ANGULAR VELOCITY DETECTION ELEMENT AND ANGULAR VELOCITY SENSOR"
}