{
  "$type": "site.standard.document",
  "description": "A method for calibrating an inertial angular sensor, includes the steps of: A for at least two electrical angles (θj) of the vibration wave: A applying, via each of the three trim controls CTi, a sinusoidal stiffness disturbance PSi having a disturbance frequency fi, and for each applied…",
  "path": "/patents/1348957",
  "publishedAt": "2023-08-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C25/005",
    "THALES"
  ],
  "textContent": "A method for calibrating an inertial angular sensor, includes the steps of: A for at least two electrical angles (θj) of the vibration wave: A applying, via each of the three trim controls CTi, a sinusoidal stiffness disturbance PSi having a disturbance frequency fi, and for each applied disturbance: A determining and storing an estimated excitation force Fei to be applied to the resonator in the presence of said disturbance PSi, on the basis of excitation controls determined by the servo controls, B determining, on the basis of the three estimated excitation forces Fei i=1, 2, 3 stored in step A11, three 2×2 matrices M′i, a matrix M′i being representative of the response of the gyrometer to the disturbance PSi, C determining and storing an estimated inverse excitation matrix (formula (A)) and an estimated inverse detection matrix (formula (B)) on the basis of the three matrices M′i determined in step B, an excitation matrix E and a detection matrix D being respectively representative of the effects of the excitation chain and of the effect of the detection chain of the sensor.",
  "title": "METHOD FOR CALIBRATING A VIBRATING INERTIAL SENSOR"
}