1. Len Palek for Bob Strommen MnROAD Research Conference October 4, 2011 Latest Technologies in Pavement Testing and Instrumentation

2. Presentation Outline Dynamic Testing Static Data Collection Sensors Other

3. MnROAD Dynamic Collection

4. The Heart of the System National Instruments Model 1052 Combination PXI/SCXI Chassis System

5. Measurement & Automation Explorer (MAX)

6. MnROAD Data Collection Version 4

7. MnROAD Trigger Systems SoftwareWireless GPSLive Traffic Optical BeamManual Switch

8. The Output

9. What a Longitudinal Trace Should Look Like..

10. Trace for a PCC Embedded Strain Gauge

11. Dynamic CE Data After Noise Reduction

12. Static Data Collection

13. CR1000 AVW200 TDR100 SDMX50SP AM16/32 Static Data Collection Systems

14. Campbell Scientific Loggernet

15. Campbell Scientific CRBasic

16. The Output

17. Daily Temperature Data

18. Instrumentation Soil Pressure HMA and PCC Strains Deflection Weigh in Motion Temperature Moisture Frost Lysimeter

19. A Little Explanation All resistive strain gauges work on the principles of the Wheatstone bridge. A Wheatstone bridge is a network of four resistive arms. The circuit is very sensitive to changes within each arm. One or more of these arms can be an active sensing element.

20. Dynamic Sensors Asphalt Strain Concrete Strain CTL ASG-152 Dynatest Tokoyo Sokki PML-60

21. Dynamic Sensors Cont’d Soil Pressure Pavement Displacement Soil Compression Geokon 3500Macro sensor GHSAR 750-250CTL SCG

22. Static Sensors T emperatureConcrete Strain Moisture Decagon 5TE Campbell Scientific CS616/CS635 Irrometer Watermark 200 Sensirion SHT-75 Omega THX-20 Geokon 4200

23. Pavement Monitoring Tools ALPS 2 ALPS LISA Sound Impedance Tube