{
  "$type": "site.standard.document",
  "description": "The present invention relates to a MEMS gyroscope and a method for compensating drift of sensitivity of a MEMS gyroscope. The method performed by circuitry of the MEMS gyroscope comprises demodulating an angular rate signal with an in-phase carrier signal for producing a raw rate signal, obtaining…",
  "path": "/patents/1418206",
  "publishedAt": "2023-06-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B81B7/02",
    "MURATA MANUFACTURING CO [JP]"
  ],
  "textContent": "The present invention relates to a MEMS gyroscope and a method for compensating drift of sensitivity of a MEMS gyroscope. The method performed by circuitry of the MEMS gyroscope comprises demodulating an angular rate signal with an in-phase carrier signal for producing a raw rate signal, obtaining a DC test signal by processing the angular rate signal or by further processing the raw rate signal, low-pass filtering the DC test signal for obtaining a raw test signal, and zeroing offset of the raw test signal by comparing each sample of the raw test signal to a test signal normalization value for producing an offset zeroed test signal that represents a deviation of the sample of the raw test signal from the test signal normalization value. The method further comprises determining a sensitivity compensation multiplier on basis of the offset zeroed test signal and a predefined gain coefficient and compensating drift of sensitivity by multiplying the raw rate signal with the sensitivity compensation multiplier for providing a sensitivity compensated rate signal.",
  "title": "MEMS GYROSCOPE SENSITIVITY COMPENSATION"
}