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Publication Number: FHWA-RD-02-034
Date: September 2005
Long-Term Pavement Performance Materials Characterization
Program: Verification of Dynamic Test Systems With An Emphasis On
Chapter 2. GENERAL EQUIPMENT REQUIREMENTS
To perform the complete dynamic test system evaluation, it is
necessary to have available certain pieces of equipment. The
equipment should be selected based upon the experiments to be
conducted. This equipment includes:
- Computer with sufficient hardware/software for data
- Oscilloscope (two or more channels).
- Sine wave generator.
- Digital voltmeter with resistance-reading capabilities.
- Mechanical oscillator (to simulate deformation device
movement)—this is generally a custom built apparatus.
- Strain indicator, in this case, Measurements Group P-3500 (or
- One micro strain resolution.
- Balanced signal disable capability.
- Digital readout.
- Cables for connecting signal conditioner/data-acquisition
inputs and outputs to test instruments. These cables may
incorporate attenuation, termination, or identification
- Cables for connecting the load cell(s) to the strain
- National Institute of Standards and Technology (NIST)-traceable
- Independent LVDT with power source and signal
- A micrometer head-based calibrator with .001 millimeter (mm)
resolution (for ±2.5 mm calibration).
- Pressure gauge for an independent measurement (secondary
pressure gauge) of the pressure inside the triaxial cell. The gauge
should have a capacity of at least 170 kilopascals (kPa).
- Independent calibrated temperature gauge.
- All applicable equipment required by the test procedure.
These pieces of equipment will be used to verify the operating
accuracy of all essential system components in a logical