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Latest Technologies in Pavement Testing and Instrumentation. Len Palek for Bob Strommen MnROAD Research Conference October 4, 2011. Presentation Outline. Dynamic Testing Static Data Collection Sensors Other. MnROAD Dynamic Collection. The Heart of the System.

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Presentation Transcript
latest technologies in pavement testing and instrumentation
Latest Technologies in Pavement Testing and Instrumentation

Len Palek for Bob Strommen

MnROAD Research Conference

October 4, 2011

presentation outline
Presentation Outline

Dynamic Testing

Static Data Collection

Sensors

Other

slide4
The Heart of the System

National Instruments Model 1052

Combination PXI/SCXI Chassis System

slide7
MnROAD Trigger Systems

Software

Wireless GPS

Live Traffic

Optical Beam

Manual Switch

slide13
Static Data Collection Systems

CR1000

TDR100

AVW200

SDMX50SP

AM16/32

AM16/32

instrumentation
Instrumentation

Soil Pressure

HMA and PCC Strains

Deflection

Weigh in Motion

Temperature

Moisture

Frost

Lysimeter

a little explanation
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.

dynamic sensors
Dynamic Sensors

Concrete Strain

Asphalt Strain

CTL

ASG-152

Tokoyo Sokki

PML-60

Dynatest

dynamic sensors cont d
Dynamic Sensors Cont’d

Pavement Displacement

Soil Compression

Soil Pressure

Geokon 3500

Macro sensor GHSAR 750-250

CTL SCG

static sensors
Static Sensors

Temperature

Concrete Strain

Geokon 4200

Omega THX-20

Moisture

Sensirion SHT-75

Campbell Scientific CS616/CS635

Irrometer Watermark 200

Decagon 5TE

pavement monitoring tools
Pavement Monitoring Tools

Sound Impedance Tube

ALPS

ALPS 2

LISA

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