{
  "$type": "site.standard.document",
  "description": "The heating of such as diesel fuel on road vehicles during cold weather is provided by an electrical system. The functionality of the system is periodically checked by measuring heating current using a PTC sensor (5). The current value achieved within a specific time period is measured and compared…",
  "path": "/patents/1090049",
  "publishedAt": "2004-01-28T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M31/125",
    "EICHENAUER HEIZELEMENTE GMBH [DE]"
  ],
  "textContent": "The heating of such as diesel fuel on road vehicles during cold weather is provided by an electrical system. The functionality of the system is periodically checked by measuring heating current using a PTC sensor (5). The current value achieved within a specific time period is measured and compared with a reference value using a microcontroller (20).",
  "title": "Method and apparatus for testing the functionality of an electric heating device"
}