Non-contact strain measurement system and method for using the same
First Claim
1. A non-contact strain and/or displacement measurement system for use with structural objects, such as load bearing structural objects, the non-contact strain measurement system comprising an optical device, a data store and an image arrangement that is fixed relative to an associated structural object, the optical device including an image receiving device for receiving visual images and the data store being operable to record the received visual images, the image receiving device being spaced from the associated structural object, the image receiving device being spaced from the image arrangement fixed relative to the associated structural object by an optical spacing such that the image receiving device has a visual range that includes a portion of the associated structural object and the image arrangement being within the portion, the image arrangement having at least one image element, the at least one image element of the image arrangement moving with the associated structural object when an associated applied force is directed against the associated structural object and the associated applied force produces an object movement in the associated structural object along the associated structural axis during a measurement period, the image receiving device receiving the visual images of movements of the at least one image element and the data store recording the visual images of the movements of the at least one image element during the measurement period, the movements of the at least one image element providing image data to calculate at least one of a structural object strain in the associated structural object and a displacement of the associated structural object during the measurement period;
- wherein the at least one image element includes a first image element and a second image element and the first image element and the second image element are axially spaced from one another by an image spacing;
wherein the image receiving device includes a first image receiving device and a second image receiving device and the first and second image receiving devices are space from one another by an image receiving device spacing, the image receiving device spacing being generally equal to the image spacing.
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Accused Products
Abstract
A non-contact strain and/or displacement measurement system for use with structural objects having an optical device, a data store and an image arrangement that is fixed relative to the structural object to be tested, the optical device including an image receiving device for receiving visual images and the data store being configured to record the received visual images, the image receiving device being spaced from the image arrangement by an optical spacing such that the image receiving device has a visual range that includes a portion of the structural object and the image arrangement being within the portion, the image arrangement having at least one image element wherein movement of the at least one image element during a measurement period provides image data to calculate structural object strain and/or structural object displacement.
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Citations
19 Claims
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1. A non-contact strain and/or displacement measurement system for use with structural objects, such as load bearing structural objects, the non-contact strain measurement system comprising an optical device, a data store and an image arrangement that is fixed relative to an associated structural object, the optical device including an image receiving device for receiving visual images and the data store being operable to record the received visual images, the image receiving device being spaced from the associated structural object, the image receiving device being spaced from the image arrangement fixed relative to the associated structural object by an optical spacing such that the image receiving device has a visual range that includes a portion of the associated structural object and the image arrangement being within the portion, the image arrangement having at least one image element, the at least one image element of the image arrangement moving with the associated structural object when an associated applied force is directed against the associated structural object and the associated applied force produces an object movement in the associated structural object along the associated structural axis during a measurement period, the image receiving device receiving the visual images of movements of the at least one image element and the data store recording the visual images of the movements of the at least one image element during the measurement period, the movements of the at least one image element providing image data to calculate at least one of a structural object strain in the associated structural object and a displacement of the associated structural object during the measurement period;
- wherein the at least one image element includes a first image element and a second image element and the first image element and the second image element are axially spaced from one another by an image spacing;
wherein the image receiving device includes a first image receiving device and a second image receiving device and the first and second image receiving devices are space from one another by an image receiving device spacing, the image receiving device spacing being generally equal to the image spacing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
- wherein the at least one image element includes a first image element and a second image element and the first image element and the second image element are axially spaced from one another by an image spacing;
Specification