Seventh Edition By David A. Madsen, Terence M. Shumaker, and David P. Madsen Civil Drafting Technology Chapter 5 Measuring Distance and Elevation.

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Presentation transcript:

Seventh Edition By David A. Madsen, Terence M. Shumaker, and David P. Madsen Civil Drafting Technology Chapter 5 Measuring Distance and Elevation

Civil Drafting Technology, Seventh Edition David A. Madsen, Terence M. Shumaker, David P. Madsen © 2010 Pearson Higher Education, Upper Saddle River, NJ All Rights Reserved. 2 Figure 5 – 1: A single reflector uses a cube corner prism, which is a corner cut off a cube of glass.

Civil Drafting Technology, Seventh Edition David A. Madsen, Terence M. Shumaker, David P. Madsen © 2010 Pearson Higher Education, Upper Saddle River, NJ All Rights Reserved. 3 Figure 5 – 2: A single surveyor can use a robotic total station to record the location and elevation for thousands of points.

Civil Drafting Technology, Seventh Edition David A. Madsen, Terence M. Shumaker, David P. Madsen © 2010 Pearson Higher Education, Upper Saddle River, NJ All Rights Reserved. 4 Figure 5 – 3a: The digital level measures elevation along a horizontal line of sight and provides vertical accuracy of.3 mm over a distance of 1 km. (Courtesy of Trimble Navigation)

Civil Drafting Technology, Seventh Edition David A. Madsen, Terence M. Shumaker, David P. Madsen © 2010 Pearson Higher Education, Upper Saddle River, NJ All Rights Reserved. 5 Figure 5 – 3b: The automatic level maintains a horizontal line of sight once the instrument is leveled. (Courtesy of Topcon Positioning Systems, Inc.)

Civil Drafting Technology, Seventh Edition David A. Madsen, Terence M. Shumaker, David P. Madsen © 2010 Pearson Higher Education, Upper Saddle River, NJ All Rights Reserved. 6 Figure 5 – 4: The tripod is used to mount levels and other surveying instruments. (Courtesy of Sokkia)

Civil Drafting Technology, Seventh Edition David A. Madsen, Terence M. Shumaker, David P. Madsen © 2010 Pearson Higher Education, Upper Saddle River, NJ All Rights Reserved. 7 Figure 5 – 5: Hand levels are used to obtain approximate elevations. (Courtesy of Sokkia)

Civil Drafting Technology, Seventh Edition David A. Madsen, Terence M. Shumaker, David P. Madsen © 2010 Pearson Higher Education, Upper Saddle River, NJ All Rights Reserved. 8 Figure 5 – 6: Finding an elevation with level and rod (leveling).

Civil Drafting Technology, Seventh Edition David A. Madsen, Terence M. Shumaker, David P. Madsen © 2010 Pearson Higher Education, Upper Saddle River, NJ All Rights Reserved. 9 Figure 5 – 7: Using turning points to find an unknown elevation.

Civil Drafting Technology, Seventh Edition David A. Madsen, Terence M. Shumaker, David P. Madsen © 2010 Pearson Higher Education, Upper Saddle River, NJ All Rights Reserved. 10 Figure 5 – 8: This telescoping rod is divided into whole feet and one-hundredths of a foot. The rod shown here is not extended to its full length. (Courtesy of Topcon)

Civil Drafting Technology, Seventh Edition David A. Madsen, Terence M. Shumaker, David P. Madsen © 2010 Pearson Higher Education, Upper Saddle River, NJ All Rights Reserved. 11 Figure 5 – 9: The vernier on the level rod target reads to ft. (Courtesy of Sokkia)

Civil Drafting Technology, Seventh Edition David A. Madsen, Terence M. Shumaker, David P. Madsen © 2010 Pearson Higher Education, Upper Saddle River, NJ All Rights Reserved. 12 Figure 5 – 10: A data collector transmits to the total station and stores all field data for later download to a computer.

Civil Drafting Technology, Seventh Edition David A. Madsen, Terence M. Shumaker, David P. Madsen © 2010 Pearson Higher Education, Upper Saddle River, NJ All Rights Reserved. 13 Figure 5 – 11: Field notes based on leveling contain only location and elevation information.

Civil Drafting Technology, Seventh Edition David A. Madsen, Terence M. Shumaker, David P. Madsen © 2010 Pearson Higher Education, Upper Saddle River, NJ All Rights Reserved. 14 Figure 5 – 12a: The face of the digital level rod is graduated with a bar code.

Civil Drafting Technology, Seventh Edition David A. Madsen, Terence M. Shumaker, David P. Madsen © 2010 Pearson Higher Education, Upper Saddle River, NJ All Rights Reserved. 15 Figure 5 – 12b: The reverse side of the digital rod contains standard numerical increments.

Civil Drafting Technology, Seventh Edition David A. Madsen, Terence M. Shumaker, David P. Madsen © 2010 Pearson Higher Education, Upper Saddle River, NJ All Rights Reserved. 16 Figure 5 – 13: A laser level projects a rotating beam as a plane of reference. (Courtesy of Topcon Positioning Systems, Inc.)

Civil Drafting Technology, Seventh Edition David A. Madsen, Terence M. Shumaker, David P. Madsen © 2010 Pearson Higher Education, Upper Saddle River, NJ All Rights Reserved. 17 Figure 5 – 14a: This 3D laser scanner is used for fast, accurate work in industrial and outdoor environments. (Courtesy of Trimble Navigation)

Civil Drafting Technology, Seventh Edition David A. Madsen, Terence M. Shumaker, David P. Madsen © 2010 Pearson Higher Education, Upper Saddle River, NJ All Rights Reserved. 18 Figure 5 – 14b: This high-resolution 3D spatial imaging scanner is designed for capturing photorealistic detail required in worksite evolution, historic restorations, and crime scene and accident forensics. (Courtesy of Trimble Navigation)

Civil Drafting Technology, Seventh Edition David A. Madsen, Terence M. Shumaker, David P. Madsen © 2010 Pearson Higher Education, Upper Saddle River, NJ All Rights Reserved. 19 Figure 5 – 15: A 3D laser scanner in use at a job site to capture spatial imaging of buildings. (Courtesy of Trimble Navigation)