Re S.p.A. US3
Rev.12/04/11 11/23
Calibration
To operate as diameter reader / regulator, the US3 ultrasonic sensor must be calibrated.
By measuring the distance from the reel, the sensor can measure the reel diameter. In particular, when the
reel diameter is at its maximum size the sensor reads the minimum distance. As the diameter is reduced,
the distanced measured increases, until the maximum distance corresponding to the minimum diameter
(see images below).
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