Hand push type Pavement Walking Profilometer for International Roughness Index (IRI)

Hand pushed laser flatness meter is a portable road surface flatness detection device that uses laser ranging technology combined with inertial compensation system to measure the local flatness of pedestrian walkways, small roads, construction sections and other areas with high precision. Compared to vehicle mounted systems, it is more suitable for detecting low-speed, small range, or areas that are difficult for vehicle mounted devices to cover.

It can test quality acceptance of the building, rebuilding, pavement engineering and no serious potholes and rutting disease, and the road surface roughness without water, snow, mud and normal traffic detection.

Precision can be up to 0.01 mm, to measure the surface smoothness of the asphalt, the reliability of generating high speed transmission measurement data into the computer processed by special software,it also can output calculation table and waveform figure .

Laser flat instrument host computer program is application software mating road flat instrument host supporting, the software can run on Windows operating system, for data acquisition, storage, printing and data processing, calculation and generate reports and to facilitate further analysis.

product details

product description

Working principle

Manual pushing: The operator pushes the equipment at a constant speed (usually 3-6km/h), and the laser sensor continuously collects road elevation data.

Dynamic compensation: IMU real-time corrects angle deviation caused by hand push shaking or uneven ground.

Real time analysis: The built-in software automatically calculates the flatness index, and some devices can generate cross-sectional curve graphs or defect markers.

Core advantages

Portable and flexible: lightweight (usually 10-30kg), suitable for inspection in narrow areas such as bridge joints and underground garages.

Ultra high precision: In static measurement mode, it can reach micrometer level and is suitable for laboratory or precision construction (such as high-speed rail track plates).

Low cost: No need for vehicle modification, maintenance costs are lower than in car systems.

Human computer interaction friendly: Some models support touch screen operation and on-site report generation.

Parameter

Detection speed	20 km/h - 100 km/h
Continuous measurable distance	> 50 km
Minimum sampling interval	10 mm
Sensor precision	0.1 mm
The number of operators (including the driver)	1-2 people
Operating temperature	0 ℃ to 50 ℃
System power supply	DC 12 V
Between the bottom of the laser sensor and the clear distance pavement	100 mm (testing)
Detection range: TRI	0-100 m and other detection distance can be set
Test repeatability	Deviation factor: CV < 3%