1 / 27

Sonic Tracker Theory of Operation

Sonic Tracker Theory of Operation. Paver System Five Sonic Tracker Theory of Operation. Sonic Tracker Control. The Sonic Tracker controls grade, or the mat thickness The Tracker can use any physical grade reference to control the mat thickness. Track a Curb.

lorrij
Download Presentation

Sonic Tracker Theory of Operation

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Sonic Tracker Theory of Operation Paver System Five Sonic Tracker Theory of Operation

  2. Sonic Tracker Control • The Sonic Tracker controls grade, or the mat thickness • The Tracker can use any physical grade reference to control the mat thickness.

  3. Track a Curb The Tracker can be positioned to control thickness referencing a curb.

  4. Track an existing mat The Tracker can be positioned to control paving thickness referencing an existing mat.

  5. Track an elevated stringline The Tracker can track an elevated stringline.The mat thickness will be controlled as the Sonic Tracker follows the stringline that has been set to the desired grade.

  6. Track a Surface Stringline The Sonic Tracker can even control grade from a Surface Stringline.

  7. Sonic Tracker Function • The Tracker sends sound pulses 39 times per second. • The sounds waves bounce off of any physical object • The sound echo returns to the Tracker • The Tracker measures the time, and therefore the distance to the reference.

  8. Sonic Tracker Function • Think of the Tracker as a stopwatch Distance = (Time)(Speed of sound)

  9. Working Window Slow Flashing Arrow (No Grade Correction) String SOLID UP ARROW .15’ (4.5cm) FLASHING UP ARROW .05’ (1.5cm) .2’ (6cm) .2’ (6cm) Working Window ON GRADE .01 (3mm) FLASHING DOWN ARROW .05’ (1.5cm) SOLID DOWN ARROW .15’ (4.5cm) Slow Flashing Arrow (No Grade Correction)

  10. Working Window Slow Flashing Arrow (No Grade Correction) SOLID UP ARROW .15’ (4.5cm) FLASHING UP ARROW .05’ (1.5cm) .2’ (6cm) .2’ (6cm) Working Window ON GRADE .01 (3mm) FLASHING DOWN ARROW .05’ (1.5cm) SOLID DOWN ARROW .15’ (4.5cm) Slow Flashing Arrow (No Grade Correction) String

  11. Sonic Tracker Function • Screed is at the desired mat thickness • Tracker is set to On-Grade. • On-Grade is represented by a specific distance from the Tracker to the grade reference. • The Tracker sets the “stopwatch” to a specific time representing On-Grade

  12. Sonic Tracker Function • If the Tracker raises, the distance to the grade reference has increased. • The time for the echo to return to the Tracker also increases. • The Tracker indicates a lower signal.

  13. Sonic Tracker Function • If the Tracker lowers, the distance to the grade reference has decreased. • The time for the echo to return to the Tracker also decreases. • The Tracker indicates a raise signal.

  14. Sonic Tracker Function • If the Tracker receives an echo indicating the Tracker is more than 2 ½” (.2’) above the grade reference, an ‘out of working window’ signal is displayed. • Slow-flashing down arrow • System Five does not send a valve output.

  15. Sonic Tracker Function • If the Tracker receives an echo indicating the Tracker is less than 2 ½” (.2’) from above the grade reference, an ‘out of working window’ signal is displayed. • Slow-flashing up arrow • System Five does not send a valve output.

  16. Sound Wave Pattern • The sound waves come out of the Tracker in a cone shape. • At a distance of 24” from the bottom of the Tracker, the cone should be about 6” in diameter.

  17. Working Distance • The closest working distance = 14” • The farthest working distance = 55” • Recommended height for Paving applications = between 14” and 24”. • “Rule of Thumb” for paving; • Double the bail distance = 18”

  18. Temperature Bail Function • The Temperature Bail acts as a reference for the dramatic, rapid changes in temperature and humidity that occur in paving applications.

  19. Sonic Tracker Setup 14” to 24” 9” 18” • Recommended height for Paving applications is between 14” and 24”. • “Rule of Thumb” good starting point for setup: • Double the Bail Distance = 18”

  20. Sonic Tracker Setup • Recommended height for Paving applications is between 14” and 24”. • “Rule of Thumb” good starting point for setup: • Double the Bail Distance = 18”

  21. Temperature Compensation • Dramatic, rapid temperature changes • Gusty wind blowing over hot mix Temperature Bail compensates for temperature changes here No compensation for temperature changes here

  22. Sonic Tracker Setup • Gusty wind blowing over hot mix • Dramatic, rapid temperature changes • Tracker displaying erratic grade lights • Tracker feels hot! Lower theTracker! No temperature compensation • Minimize the atmosphere between the Tracker bail and the grade reference

  23. Sonic Tracker Setup • Tracking a mechanical ski • If a string or wire is used, keep the string at least 4” (10cm) above the ski • Mechanical skis commonly shift sideways – the Tracker will be out of the Working window”

  24. Sonic Tracker Setup CENTER • Tracking a mechanical ski • Beam surging will cause the ski to move a few inches underneath the Tracker • Upon startup, center the Tracker between shoe bolts

  25. Sonic Tracker Setup = d1 d2 d1 d2 • Tracking a mechanical ski • Center the Tracker on the entire ski

  26. Sonic Tracker Setup • Tracking a mechanical ski • Center the Tracker on the entire ski • Proper placement giving 30’ averaging = d1 d2 15’ 15’

  27. Sonic Tracker Theory of Operation Paver System Five Sonic Tracker Theory of Operation

More Related