{
  "$type": "site.standard.document",
  "description": "A signal current I1 that is output from output terminal of semiconductor position detection element is converted to a signal voltage V1 by a current/voltage conversion unit and a signal current I2 that is output from output terminal is converted to a signal voltage V2 by a current/voltage…",
  "path": "/patents/1105447",
  "publishedAt": "2002-04-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C3/06",
    "HAMAMATSU PHOTONICS KK [JP]"
  ],
  "textContent": "A signal current I1 that is output from output terminal of semiconductor position detection element is converted to a signal voltage V1 by a current/voltage conversion unit and a signal current I2 that is output from output terminal is converted to a signal voltage V2 by a current/voltage conversion unit. Signal voltages V1 and V2 are compared in magnitude by a comparison circuit and a comparison signal is output so that maximum signal Vmax and minimum signal Vmin are selected. In A/D conversion circuit, the A/D conversion range is set using maximum signal Vmax, and minimum signal Vmin is converted to a digital signal and output. The position of beam incidence on semiconductor position detection element is found by incidence position calculating unit using the comparison signal and digital signal.",
  "title": "OPTICAL POSITION DETECTOR AND RANGEFINDER"
}