DYNAMIC HIGH-ELASTICITY WIDTH GAGE Russian patent published in 2008 - IPC G01B7/04 

FIELD: physics; transportation.

SUBSTANCE: gage contains sensors 1 and 2 of material edge positions, signal shaping units 3 and 4 of sensors 1 and 2 scanning, "AND" coincidence unit 5, reader units 6 and 7 of carriage 8 linear motion pulses received from fixed linear photodiode array 28. The carriage 8 is equipped with control notched grooves 9 and 10 with regulated relative position. Width gage includes controller 11, microprocessor 12, conveying belt 13 with optically active strip 14 within gaging zone, spiral edge expanders 15 and 16 and guide frame 17. Thus sensors 1 and 2 of material edge positions and expanders 15 and 16 are mounted in pairs and mutually rigid, while the carriage 8 is mounted to reciprocate longitudinally due to kinematic constraint with conveying belt 13. The guide frame 17 supporting traveling unit of optoelectronic sensors 1 and 2, and spiral edge expanders, is mounted to reciprocate within carriage travel end points registered with limiter assembly and position of levers 18 and 19 specifically pitched on the conveying belt 13, due to notched blocks 21 and 22. Output of edge position sensor scanning signal shaping unit is connected with input of carriage linear motion reader directly on one line and through coincidence unit 5 on the other one.

EFFECT: simplification of dynamic high-elasticity width gaging and performance expansion while simultaneously improving measurement accuracy.

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