A curvature radius measurer, an electronic device and a manufacturing method for the curvature radius measurer are provided. The curvature radius measurer is adhered to a panel. When the panel is pressed, the panel can be bent and deformed, and strain sensing resistors are deformed therewith, thus causing change of electrical characteristics of a curvature radius measurement circuit. The electrical property is only determined by the curvature radius of the panel, and the corresponding electric signal is obtained through the curvature radius measurement circuit, that is, the curvature radius of the panel at a pressed position can be accurately detected.

A detection arrangement for detecting a state of wear of a chopping assembly comprises at least one magnet arrangement which includes a magnetic excitation arrangement and a flux-conducting device magnetically coupled thereto. The magnet arrangement provides a pole arrangement which forms at least one magnetic pole for outwardly conducting magnetic flux. At least one portion of the chopping blades moves past the pole arrangement during a rotation of the cutting cylinder, and forms an air gap arrangement including at least one air gap with respect to the pole arrangement and, as a result, at least one magnetic circuit excited by the excitation arrangement is closed via the chopping blade. At least one portion of the magnetic flux generated by the magnetic excitation arrangement is longitudinally guided in the chopping blade at least across one longitudinal portion of the chopping blade.

A detection arrangement for detecting a state of wear of a chopping assembly comprises at least one magnet arrangement which includes a magnetic excitation arrangement and a flux-conducting device magnetically coupled thereto. The magnet arrangement provides a pole arrangement which forms at least one magnetic pole for outwardly conducting magnetic flux. At least one portion of the chopping blades moves past the pole arrangement during a rotation of the cutting cylinder, and forms an air gap arrangement including at least one air gap with respect to the pole arrangement and, as a result, at least one magnetic circuit excited by the excitation arrangement is closed via the chopping blade. At least one portion of the magnetic flux generated by the magnetic excitation arrangement is longitudinally guided in the chopping blade at least across one longitudinal portion of the chopping blade.

The present invention relates to a method for manufacturing an angle and curvature detection sensor, and the sensor and, more specifically, to: a method for manufacturing a thin-film transistor array-based backplane by a roll-to-roll gravure printing process and manufacturing a sensor for measuring an angle change and a degree of curvature of the X axis and the Y axis by using the backplane; and the sensor. The method for manufacturing an angle and curvature detection sensor, according to an embodiment of the present invention, comprises the steps of: manufacturing a thin-film transistor backplane by a roll-to-roll gravure printing process; forming a protective layer on the thin-film transistor backplane by printing; forming a sealed space by adhering a flexible plastic case onto the upper part of the protective layer by means of an adhesive; and filling the sealed space with a first liquid and injecting a second liquid.

The present invention relates to a method for manufacturing an angle and curvature detection sensor, and the sensor and, more specifically, to: a method for manufacturing a thin-film transistor array-based backplane by a roll-to-roll gravure printing process and manufacturing a sensor for measuring an angle change and a degree of curvature of the X axis and the Y axis by using the backplane; and the sensor. The method for manufacturing an angle and curvature detection sensor, according to an embodiment of the present invention, comprises the steps of: manufacturing a thin-film transistor backplane by a roll-to-roll gravure printing process; forming a protective layer on the thin-film transistor backplane by printing; forming a sealed space by adhering a flexible plastic case onto the upper part of the protective layer by means of an adhesive; and filling the sealed space with a first liquid and injecting a second liquid.

In a detecting device, a second strain gage element of a second strain gage and a third strain gage element of a third strain gage are arranged symmetrically from a position of a center in a thickness direction of a substrate, and are superposed on each other as viewed in plan. A first strain gage element of a first strain gage and a fourth strain gage element of a fourth strain gage are arranged symmetrically from the position of the center in the thickness direction of the substrate, and are superposed on each other as viewed in plan. As viewed in plan, the first strain gage element and the second strain gage element are shifted from each other in a length direction of the substrate. In addition, as viewed in plan, the third strain gage element and the fourth strain gage element are shifted from each other in the length direction of the substrate.

In a detecting device, a second strain gage element of a second strain gage and a third strain gage element of a third strain gage are arranged symmetrically from a position of a center in a thickness direction of a substrate, and are superposed on each other as viewed in plan. A first strain gage element of a first strain gage and a fourth strain gage element of a fourth strain gage are arranged symmetrically from the position of the center in the thickness direction of the substrate, and are superposed on each other as viewed in plan. As viewed in plan, the first strain gage element and the second strain gage element are shifted from each other in a length direction of the substrate. In addition, as viewed in plan, the third strain gage element and the fourth strain gage element are shifted from each other in the length direction of the substrate.