Inertial Profiler: Simple Facts Laser for height between vehicle and road › Mounted 12-16” (300-400mm) above surface DMI (“Distance Measurement Interface”) for measuring longitudinal position Accelerometer for vertical acceleration › Double integration process applied to accelerometer data to effectively eliminate vehicle suspension.
How Inertial Profiling Systems Work to Measure and Specify …
2020年8月20日 · An inertial profiler captures an elevation sample from the accelerometer and height sensor for every 1-inch traveled. SSI now offers a GPS-DMI option which uses the accurate real-time position of the inertial profiler to govern data collection intervals.
Inertial Profiler Certification Program (IPCP) - Caltrans
This Inertial Profiler Certification Program is intended to capture the annual calibration verification in accordance with California Test 387. Caltrans IA oversees and assists our partners from UCPRC in administering the practical exams at the testing site shown below.
Pavements – FHWA InfoTechnology - Transportation
Inertial profilers are primarily used to measure the profile of the pavement surface. Road profiles are analyzed to calculate a smoothness or ride quality index, the most common of which is the International Roughness Index (IRI).
Surface Systems & Instruments (SSI)
How Inertial Profiling Systems Work to Measure and Specify Pavement Smoothness. A manufacturer of specialty devices that test the profile (or smoothness) of surfaces, including roads, floors (flatness/levelness), and bridges.
2024年7月29日 · This practice outlines procedures for the certifying, verifying, and operating of inertial profiling equipment. It also provides guidance for qualifying the equipment operators and inertial profiling equipment mounted on a specific host vehicle make and model. 5. 5.1.
Inertial Profiler (GM Design) In the 1960’s, a breakthrough in design made high-speed profiling possible for monitoring large road networks. This was when General Motors Research Laboratories developed the inertial profiler. Measurements from the inertial profiler combine the same three ingredients as the static rod and level and the Dipstick.
Inertial Profilers are used to measure a longitudinal surface elevation profile of highways based on an inertial reference system that is mounted on a host vehicle. The devices must be calibrated, and operators certified, to measure profiles for acceptance and verification on projects.
How Inertial Profiling Systems Work to Measure and Specify …
Inertial profiling systems generate 2D surface profiles under industry standards such as ASTM E950 and AASHTO r57. They record the wheelpath elevation profiles that affect the ride quality of the traveling public.
Slide 1. Achieving High Correlations of Inertial Profilers with Reference Profilers at the Smart Road. Edgar de León Izeppi Ph. D., Virginia Tech Paul Toom P. Eng. MBA, ICC. 16 September 2014 Pavement Evaluation 2014. Objectives. State DOTs want to certify Inertial Profilers using. ASTM E950 which requires. 94% IRI Cross Correlation.