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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-6100986-A, on 8 August 2000. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000003142

Arrangement for optic measuring of both width and thickness of an object moving along a straight path

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Classification
Sensors, Controls & Machine Vision › Position and Presence Sensing
Original source
US-6100986-A, the United States Patent and Trademark Office, 8 August 2000
Document SHA-256
f2d4fc9c2bd7adf2a01abb03f7803a90a774354fe2d9e04faa17bc0a47d6c5ba

A device for touchless measuring of thickness and width of an object travelling along a straight path, based on the use of CCD video camera and laser. The device, by means of installed cameras, laser(s) and two parabola-shaped mirrors, measures both thickness and width of an object as the center line thereof passes directly below the width measuring camera. The device is intended to be coupled to a computer or PC or PLS. Communicating equipment does not become "stuck", occupied with reading measuring values even if the object to be measured comes to rest within the measuring area. Parabola-shaped mirrors are mounted parallel in the longitudinal direction, and with the concave and mirror-coated sides angled 90° to each other in the plane of the short sides, (short dimensions); further, these are positioned with the longitudinal direction parallel with the transport direction of the object to be measured and above the same, such that light and contrast transitions are mirrored in these and recorded by the camera. The device may be used for e.g. measuring thickness and width of laterally conveyed timber in adjusting works.

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Abstract

A device for touchless measuring of thickness and width of an object travelling along a straight path, based on the use of CCD video camera and laser. The device, by means of installed cameras, laser(s) and two parabola-shaped mirrors, measures both thickness and width of an object as the center line thereof passes directly below the width measuring camera. The device is intended to be coupled to a computer or PC or PLS. Communicating equipment does not become "stuck", occupied with reading measuring values even if the object to be measured comes to rest within the measuring area. Parabola-shaped mirrors are mounted parallel in the longitudinal direction, and with the concave and mirror-coated sides angled 90° to each other in the plane of the short sides, (short dimensions); further, these are positioned with the longitudinal direction parallel with the transport direction of the object to be measured and above the same, such that light and contrast transitions are mirrored in these and recorded by the camera. The device may be used for e.g. measuring thickness and width of laterally conveyed timber in adjusting works.

1. Drawings

[0001]Sheet 1.

[0002]Sheet 2.

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Citation

OpenTechnical Publication OT-2026-000003142, “Arrangement for optic measuring of both width and thickness of an object moving along a straight path,” published September 15, 2026 at 19:37:43 UTC, https://opentechnical.org/p/OT-2026-000003142.

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