Device for Detecting the thickness of a medium in the form of sheet includes: a Carrier ROLLER, a roller screen, a sensor Unit, a calculation of the thickness, the device further comprises a zero value Correction Unit, a Storage Unit gives Cough; a process for Detecting the thickness of a medium in the form of Leaf.

摘要

A method and a device for continuously detecting thickness of a sheet-type medium in a continuous conveying process can achieve a more accurate and stable detected thickness value. The device for detecting thickness of a sheet-type medium comprises a conveying roller (1); a detection roller (2), the detection roller (2) being arranged opposite to the conveying roller (1), and an elastic displacement existing between the detection roller (2) and the conveying roller (1); a plate spring (3), arranged by pressing opposite to the other side of the detection roller (2) relative to the conveying roller (1); a sensor (4), arranged above the plate spring (3); and a thickness calculation unit (6), calculating a thickness value of the sheet-type medium according to a distance detection value and a standard zero value; and further comprises a zero value correction unit (7), used for correcting a dynamically detected zero value according to a zero value correction formula to obtain the standard zero value; and a data storage unit, used for storing a preset distance measurement zero value and operating data required for zero value correction.