{
  "$type": "site.standard.document",
  "description": "Contactless measurement device for determining the distance between a railway vehicle and various elements of the permanent way has a reference measurement unit (20) with which one or more distance measurement units (14-17) can be checked by measurement of a distance to a characteristic point on a…",
  "path": "/patents/1076639",
  "publishedAt": "2005-06-22T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B61K9/02",
    "FRAUNHOFER GES FORSCHUNG [DE]"
  ],
  "textContent": "Contactless measurement device for determining the distance between a railway vehicle and various elements of the permanent way has a reference measurement unit (20) with which one or more distance measurement units (14-17) can be checked by measurement of a distance to a characteristic point on a rail. A correction module is then used to correct other measurements based on the measurement of the distance to the reference point.",
  "title": "Non-contact object sensing device"
}