The Ames HSP Pavement Profiler meets or
exceeds the following requirements: ASTM E950 Class 1 profiler specifications, AASHTO PP 51-02 and Texas
test method TEX 1001-S. The profiler is provided in "kit" form for
mounting on your own vehicle. There is no longer any reason to
have a specialty vehicle that is used only for roadway profiling. The
HSP mounts quickly and easily into any 2" hitch receive and can
be removed for storage or safekeeping.
System overview:
· High Speed system mounted on rear hitch of
vehicle; standard 2” hitch receiver · Ruggedized laptop mounted in cab of vehicle with test personnel
· Single or dual laser systems are available
· High speed mounting hardware is height adjustable for different vehicles
Computer hardware:
· IBM compatible system with daylight readable screen
·
Panasonic Toughbook 1.66 MHz Intel Core Duo laptop with a 80 GB
hard drive and 512MB of RAM
· Color 13.3" SVGA anti-reflective, outdoor readable touch display screen
· Ethernet
(wired or wireless) or RS-232 serial port connection from
laptop to data acquisition computer
· RS-485 serial network
between data acquisition computer and all modules
· Compact Flash PC card with 1 GB memory for fast file transfer
· Wireless high speed (2 inches/second) thermal strip printer for plotting
pavement profile at job site
· All electronic components housed in water resistant and dust tight enclosures
· Field replacement of any component does not require re-calibration of the system
· Capable of connecting a second sensor to profile
both wheel tracks simultaneously
· Second sensor is field installable, and can be installed later without modification if
you choose.
Computer software:
· Microsoft Windows operating system
· Display profile in real time while data is being collected
· Calculates Profile Index (PI), International Roughness Index (IRI), Half-car Roughness
Index (HRI), Ride Quality Index (RQI), and Ride Number (RN)
· Plots true profile, California
profilograph profile, and rolling straightedge profile
·
Equipped with variable high and low pass filter options
·
Contains automatic bump detection software
· Capable of
displaying "true" profile, rolling straightedge, and California
type profilograph profile on screen
· Identifies location of
"out-of-specification" bumps and dips
· Bumps can be located
easily using system's odometer mode
· Equipped with the
following export file options: profile elevation points, Michigan
ERD format, Texas PRO format, comma separated variable (CSV)
format and generated report tables format (HTML)
System:
· Capable of collecting measurements at
speeds between 25 and 60 mph
· Laser height sensor with a
range of eight inches and a resolution of 0.002 inch
·
Horizontal distance measured with an optical encoder that has a
resolution of 0.15 inches
· Horizontal distance can also be
measured with a Speed Sensor or non-contact Doppler sensor which
has a resolution of 0.2 inches
· Pavement elevation sampling:
16,000 samples per second
· Pavement elevation sample storage:
software selectable 1-16 samples/foot
· Profile wavelength
range: 0.5 to 760 feet
· Accelerometer resolution: 0.0001g
· Data interchange: standard 3.5 IBM compatible floppy disk or
Compact Flash (CF) PC card
