Method and apparatus for determining a characteristic of a construction material

• US 9,587,938 B2
• Filed: 05/22/2012
• Issued: 03/07/2017
• Est. Priority Date: 06/17/2003
• Status: Active Grant

• Current Assignee: Troxler Electronic Laboratories, Inc.
• Original Assignee: Troxler Electronic Laboratories, Inc.
• Inventors: Troxler, Robert Ernest
• Primary Examiner(s): LE, TOAN M
• Application Number:
  US13/478,068
• Publication Number:
  US 20120227475A1
• Time in Patent Office: 1,750 Days
• Field of Search: 702/156, 702/23, 702 32- 33, 702/35, 702/40, 702/127, 702/150, 73/32.R, 73/530.7, 73/73, 731/49, 731/520.5, 734/33, 738/24, 738/649.1, 250/269.1, 25039005-39006, 250/393, 324/639, 356/244, 335/55
• US Class Current: 1/1
• CPC Class Codes: G01B 11/022 by means of tv-camera scanning
• CPC Class Codes: G01B 11/24 for measuring contours or curvatures
• CPC Class Codes: G01B 21/02 for measuring length, width, or thickness G01B21/10 takes precedence
• CPC Class Codes: G01B 21/20 for measuring contours or curvatures, e.g. determining profile
• CPC Class Codes: G01N 2009/024 the volume being determined directly, e.g. by size of container
• CPC Class Codes: G01N 21/6456 Spatial resolved fluorescence measurements; Imaging
• CPC Class Codes: G01N 33/383 Concrete, cement
• CPC Class Codes: G01N 33/42 Road-making materials G01N33/38 takes precedence
• CPC Class Codes: G01N 9/02 by measuring weight of a known volume

Abstract

An apparatus is provided. The apparatus is provided for interacting with a cylindrically-shaped construction material sample that defines a longitudinal axis extending from a central point of an end of the construction material sample. The apparatus includes a translation mechanism configured for rotating the construction material sample about the longitudinal axis and at least one material-interacting device spaced-apart from the translation mechanism and configured for interacting with the construction material sample.

Claims

1. An apparatus for optically interacting with a cylindrically-shaped construction material sample defining a longitudinal axis that extends from a central point of an end of the construction material sample, the apparatus comprising:

a mechanism configured for rotating the construction material sample about the longitudinal axis;

at least one material-interacting device spaced-apart from the mechanism and configured for an optical interaction with the construction material sample to generate multi-dimensional image data of an opaque surface of the construction material sample; and

a computer device configured to generate one of surface data and bulk volumetric data of the construction material sample based on the multi-dimensional optical image data of the opaque surface of the construction material sample.

2. The apparatus of claim 1, wherein the mechanism comprises a translation mechanism having at least one roller wheel positioned about the construction material sample and configured to rotate or translate the construction material sample.

3. The apparatus of claim 1, wherein the at least one roller wheel is operably coupled to a motor configured to provide rotational forces thereto.

4. The apparatus of claim 1, further comprising a housing that carries the mechanism and the construction material sample.

5. The apparatus of claim 4, wherein the housing is configured to translate the construction material sample from a first position to at least a second position.

6. The apparatus of claim 1, wherein the at least one material-interacting device comprises a plurality of material-interacting devices spaced-apart from the mechanism.

7. The apparatus of claim 1, wherein the material-interacting device is configured to determine at least one measurement of the surface of the construction material sample.

8. The apparatus of claim 7, wherein the material-interacting device is configured to generate the at least one measurement to determine a characteristic of the construction material sample.

9. The apparatus of claim 8, wherein the characteristic is one of density, volume, and moisture content.

10. The apparatus of claim 1, wherein the at least one material-interacting device is configured to direct or to receive one of a light point, a light line, or a wave front on a surface of the construction material sample for interacting therewith.

11. The apparatus of claim 1, wherein the at least one material-interacting device is configured to direct or to receive one of sound, ultrasound, light, and radiation on the construction material sample for interacting therewith.

12. The apparatus of claim 1, wherein the at least one material-interacting device is configured to determine a characteristic of one or more surface voids defined in a surface of the construction material sample, and

wherein the computer device is configured to generate the volume data based on the characteristic of the one or more surface voids.

13. The apparatus of claim 1, wherein the at least one material-interacting device comprises at least one camera or lens positioned at different locations or angles and configured to capture stereo images of the construction material sample to generate the multi-dimensional image data.

14. The apparatus of claim 1, further comprising a light source configured to generate and to apply light to the construction material sample.

15. The apparatus of claim 1, further comprising:

one of an ambient, available, and natural light source that applies light to illuminate the construction material sample; and

an imaging device configured to generate multi-dimensional analysis of the construction material sample.

16. The apparatus of claim 1, wherein the at least one material-interacting device is configured to direct further including one of a light point, a light line, ambient light, coherent light, incoherent light, or a wave front directed on a surface of the construction material sample for interacting therewith including stereo vision techniques.

17. The apparatus of claim 1, wherein the at least one material-interacting device is configured to direct further including using one of sound, ultrasound, light, ambient light, available light, natural light, coherent light, and incoherent light directed on the construction material sample for interacting therewith.

18. The apparatus of claim 1, wherein the at least one material-interacting device comprises at least one camera or lens positioned at different locations or angles and configured to capture stereo images of the construction material sample to generate the multi-dimensional image data.

19. A method comprising:

rotating a cylindrically-shaped construction material sample along a longitudinal axis of the construction material sample;

interacting, using at least one material-interacting device, with the construction sample material by optical illumination interaction to generate multi-dimensional image data of an opaque surface of the construction material sample; and

generating, using a computer device, one of surface data and bulk volumetric data of the construction material sample based on the multi-dimensional optical image data of the opaque surface of the construction material sample.

20. The method of claim 19, wherein rotating the cylindrically-shaped construction material sample comprises using at least one roller wheel positioned about the construction material sample for rotating the construction material sample.

21. The method of claim 19, further including projecting one of a light point, a light line, or a wave front on a surface of the construction material sample for interacting therewith.

22. The method of claim 19, further including using one of sound, ultrasound and light for interacting with the construction material sample.

23. The method of claim 19, wherein the at least one material-interacting device further comprises at least one sample-imaging device, and

wherein the multi-dimensional image data defines one or more surface voids of the construction material sample.

24. The method of claim 23, further comprising using surface void data, surface irregularity or surface roughness to obtain an actual volume or a volume estimate of the construction material sample.

25. The method of claim 23, further comprising using volume data or surface void data and mass data of the construction material sample for calculating one of density and moisture content.

26. The method of claim 23, further comprising using the multi-dimensional image data defining the one or more surface voids to correct a dimensional volume or result.

27. The method of claim 19, wherein the surface data defines one of height, shape, texture, surface roughness, color, aggregate size, or combinations thereof of the construction material sample.

28. The method of claim 19, further comprising generating data of the construction material sample to create a histogram of the characteristics.

29. The method of claim 19, further comprising using a computer device for:

determining a characteristic of one or more surface voids defined in a surface of the construction material sample; and

generating the volume data based on the characteristic of the one or more surface voids.

30. The method of claim 19, wherein interacting with the construction material sample comprises using at least one camera or lens positioned at different locations or angles for capturing stereo images of the construction material sample to generate the multi-dimensional image data.

31. The method of claim 19, further comprising generating and applying light to the construction material sample.

32. The method of claim 19, further comprising:

applying one of an ambient, available, and natural light to the construction material sample; and

using an imaging device configured to generate multi-dimensional analysis of the construction material sample.

33. The method of claim 19, further including projecting one of a light point, a light line, ambient light, available light, natural light, coherent light, incoherent light, or a wave front on a surface of the construction material sample for interacting therewith including stereo vision techniques.

34. The method of claim 19, further including using one of sound, ultrasound, light, ambient light, available light, natural light, coherent light, and incoherent light for interacting with the construction material sample.

35. The method of claim 19, wherein interacting with the construction material sample comprises using at least one camera or lens positioned at different locations or angles for capturing stereo images of the construction material sample to generate the multi-dimensional image data.