{
  "$type": "site.standard.document",
  "description": "The measurement system consists of a closed chamber (4) which may be pressurized or evacuated. It has a pressure gauge (6) and a distance measurement sensor (7) aimed toward one or more electronic modules with thin foil housings (5). When the chamber is evacuated to 500 mbar absolute pressure, the…",
  "path": "/patents/1085606",
  "publishedAt": "2004-07-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01M3/363",
    "VARTA MICROBATTERY GMBH [DE]"
  ],
  "textContent": "The measurement system consists of a closed chamber (4) which may be pressurized or evacuated. It has a pressure gauge (6) and a distance measurement sensor (7) aimed toward one or more electronic modules with thin foil housings (5). When the chamber is evacuated to 500 mbar absolute pressure, the thin foils may bulge and this movement may be measured. Valves (3) connect the chamber alternately to an air pump (1), giving a pressure of 1-10 bar absolute and to a vacuum pump (2).",
  "title": "Procedure for testing the leak tightness of galvanic elements"
}