{
  "$type": "site.standard.document",
  "description": "The device use phase displacement of reflected light of a modulated transmission light beam. It has a light transmitter (21) for transmitting modulated light, a high frequency generator (11) for generating a high frequency control signal and a modulation circuit (13) for generating a light…",
  "path": "/patents/1091409",
  "publishedAt": "2003-12-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C3/08",
    "SICK AG [DE]"
  ],
  "textContent": "The device use phase displacement of reflected light of a modulated transmission light beam. It has a light transmitter (21) for transmitting modulated light, a high frequency generator (11) for generating a high frequency control signal and a modulation circuit (13) for generating a light transmission control signal with the frequency of the high frequency control signal and an adjustable light transmission amplitude.",
  "title": "Opto-electronic sensor"
}