{
  "$type": "site.standard.document",
  "description": "The invention relates to a method for measuring the sag of electrical overhead lines on tracks of rail-bound traffic, wherein the measurement is carried out with the aid of optical detection. The invention is based on the object of developing a method which permits mobile deployment, can be set up…",
  "path": "/patents/955740",
  "publishedAt": "2015-11-11T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60M1/28",
    "DB SYSTEMTECHNIK GMBH [DE]"
  ],
  "textContent": "The invention relates to a method for measuring the sag of electrical overhead lines on tracks of rail-bound traffic, wherein the measurement is carried out with the aid of optical detection. The invention is based on the object of developing a method which permits mobile deployment, can be set up and dismantled in very short time, wherein the measuring technology is arranged outside the track and has high measurement accuracy. This is achieved according to the invention in that a calibrated angle sensor is used, whereby • using a camera/laser scanner, a sag measuring device is positioned between the contact wire and the track plane, or a track calculation of the contact wire is carried out via the support point geometry, and the correct sag a is determined according to the relationship a = h + m · 1 - x/d - h",
  "title": "METHOD FOR MEASURING THE UPLIFT OF ELECTRICAL CONTACT LINES ON RAIL LINES"
}