DEVICE FOR CALIBRATING MULTI-ROLL LEVELLER Russian patent published in 2024 - IPC G01B11/16 B21D1/02 

FIELD: various technological processes.

SUBSTANCE: invention relates to a device for calibrating a multi-roll leveller for levelling a metal strip. Calibration plate comprises a first groove on a first side, in which a first optical fibre is laid by means of an adhesive; second groove is arranged on second side opposite said first side, in which a second optical fibre is laid by means of an adhesive. Said first optical fibre and said second optical fibre comprise a fibre Bragg grating and are substantially parallel. First optical fibre and the said second optical fibre are located at the same distance from the said neutral plane N. First laid optical fibre and the said second laid optical fibre are made so that they can be connected to the optical connector and have a sufficient length to overlap all the rolls of the said multi-roll leveller.

EFFECT: high accuracy of determining key parameters required to perform reproducible calibration under load for any multi-roll leveller without damage to measurement means.

8 cl, 10 dwg