{
  "$type": "site.standard.document",
  "description": "Provided is a physical quantity detection device capable of not only measuring tire air pressure without using a sensor component other than a strain sensor, but also detecting a load and wear from a strain signal corrected using information on the tire air pressure. The physical quantity detection…",
  "path": "/patents/1380325",
  "publishedAt": "2026-04-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C23/064",
    "HITACHI ASTEMO, LTD."
  ],
  "textContent": "Provided is a physical quantity detection device capable of not only measuring tire air pressure without using a sensor component other than a strain sensor, but also detecting a load and wear from a strain signal corrected using information on the tire air pressure. The physical quantity detection device according to the present invention detects air pressure of a tire at a reference level of a signal waveform of the strain sensor, and detects a load and wear of the tire from a strain signal corrected by the air pressure of the tire. The physical quantity detection device according to the present invention holds a reference value stored in a storage unit as a table, and detects each physical quantity by comparison with the reference value.",
  "title": "PHYSICAL QUANTITY DETECTION DEVICE"
}