Micro-epsilon Messtechnik Gmbh & Co. Kg

Herbert Fuellmeier

Gerhard Kirschner

Achim Sonntag

Guenter Schallmoser

Franz Hochwimmer

A method for measuring the thickness on measurement objects, whereby at least one sensor measures against the object from the top and at least one other sensor measures against the object from the bottom and, at a known distance of the sensors to one another, the thickness of the object is calculated according to the formula D=Gap&#x2212;(S1+S2), whereby D=the thickness of the measurement object, Gap=the distance between the sensors, S1=the distance of the top sensor to the upper side of the measurement object, and S2=the distance of the bottom sensor to the underside of the measurement object, is characterized by the compensation of a measurement error caused by tilting of the measurement object and/or by displacement of the sensors and/or by tilting of the sensors, whereby the displacement and/or the tilting is determined by calibration and the calculated thickness or the calculated thickness profile is corrected accordingly. The invention further concerns a device for applying the method.

Method for thickness measurement on measurement objects and device for applying the method

The invention relates to a device serving for the combined measurement of the width and thickness of a flat object, in particular a plate, a belt, or a web. The device comprises a measurement apparatus which has at least one contactless sensor, which is for width measurement on the object and which is movable crosswise to the longitudinal direction or conveying direction of the object. According to the invention, on the opposite side of the object, there is a second sensor opposite the first sensor which, together with the first sensor, serves for thickness measurement on the object, wherein the two sensors can travel above and below the object, that is, on opposite sides of the object.

Device and method for measuring the width and thickness of a flat object

An apparatus for measuring the thickness of a measurement object, preferably a measurement object in the form of a web or piece goods, in a measuring gap, with a measuring mechanism which is fitted to a machine frame, wherein the measuring mechanism for measuring the thickness comprises one or more travel measurement sensor(s) aimed at the measurement object, is characterized in that a compensation sensor which is coupled to a travel measurement sensor measures the distance to a reference rule in order to detect and compensate for a change in the measuring gap, in that the reference rule is in the form of a side of a frame-shaped reference device integrated in the measuring mechanism, and in that the reference device is configured in such a manner that the distance between the reference rule and that side of the reference device which is opposite the reference rule is known during the thickness measurement. A corresponding method for measuring the thickness is also stated.

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Egglham, Germany

Herbert Fuellmeier