RI-2 vehicle-mounted bump integrator measuring VBI, International Roughness Index (IRI) and ride quality of road pavements.
Overview
The RI-2 bump integrator measures the vehicle bump accumulator value (VBI), International Roughness Index (IRI), roughness standard deviation () and Ride Quality Index (RQI). It uses a Celesco string potentiometer (NEMA4/IP67) and a high-accuracy distance measurement system (DMI) to acquire, process, display and store data at equal intervals. Suitable for construction control, acceptance and network survey of highways, municipal roads and airport runways. Complies with JJG (Transport) 052-2004, JTJ059-95 T0933-95 and ASTM E1082-90.
Applications
• Road and highway engineering laboratory testing
• Construction material quality control and acceptance
• Research and teaching laboratories
• Third-party inspection and certification bodies
Features
• High measurement accuracy with stable repeatability
• Large LCD display showing real-time test parameters and results
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international testing standards
• Complete with calibration certificate and operation manual
Technical Specifications
| Item | Specification |
| Displacement sensor resolution | 0.1mm |
| Displacement range | >1m (±50cm) |
| Distance accuracy | <0.1% |
| Distance resolution | <10mm |
| IRI report interval | 10–1000m |
| Test speed | 20–100km/h |
| IRI correlation R² | >0.98 |
| IRI range | 0–15m/km |
| Repeatability | CV<5% |
| Data interface | USB 2.0 |
| Output format | ASCII, Excel |
| Inverter | 300W (DC12V in / AC220V out) |
Standards
GB/T, JTG, ASTM
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Dedicated analysis software (PC)
• Spare parts kit
FAQ
Q1: What standards does the RI-2 Vehicle-Mounted Bump Integrator comply with?
A1: The RI-2 Vehicle-Mounted Bump Integrator is designed and manufactured in accordance with relevant Chinese national (GB) and transport industry (JTG) standards, as well as applicable ASTM and AASHTO international standards. A calibration certificate traceable to national standards is provided with each unit.
Q2: How often should the RI-2 Vehicle-Mounted Bump Integrator be calibrated?
A2: We recommend annual calibration by authorized technicians or by iRoad after-sales service center. For high-frequency laboratory use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. Custom configurations may require 20-30 days. iRoad provides on-site installation, commissioning and operator training for major equipment; remote video guidance is available for standard laboratory instruments.
Overview
The RI-2 bump integrator measures the vehicle bump accumulator value (VBI), International Roughness Index (IRI), roughness standard deviation () and Ride Quality Index (RQI). It uses a Celesco string potentiometer (NEMA4/IP67) and a high-accuracy distance measurement system (DMI) to acquire, process, display and store data at equal intervals. Suitable for construction control, acceptance and network survey of highways, municipal roads and airport runways. Complies with JJG (Transport) 052-2004, JTJ059-95 T0933-95 and ASTM E1082-90.
Applications
• Road and highway engineering laboratory testing
• Construction material quality control and acceptance
• Research and teaching laboratories
• Third-party inspection and certification bodies
Features
• High measurement accuracy with stable repeatability
• Large LCD display showing real-time test parameters and results
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international testing standards
• Complete with calibration certificate and operation manual
Technical Specifications
| Item | Specification |
| Displacement sensor resolution | 0.1mm |
| Displacement range | >1m (±50cm) |
| Distance accuracy | <0.1% |
| Distance resolution | <10mm |
| IRI report interval | 10–1000m |
| Test speed | 20–100km/h |
| IRI correlation R² | >0.98 |
| IRI range | 0–15m/km |
| Repeatability | CV<5% |
| Data interface | USB 2.0 |
| Output format | ASCII, Excel |
| Inverter | 300W (DC12V in / AC220V out) |
Standards
GB/T, JTG, ASTM
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Dedicated analysis software (PC)
• Spare parts kit
FAQ
Q1: What standards does the RI-2 Vehicle-Mounted Bump Integrator comply with?
A1: The RI-2 Vehicle-Mounted Bump Integrator is designed and manufactured in accordance with relevant Chinese national (GB) and transport industry (JTG) standards, as well as applicable ASTM and AASHTO international standards. A calibration certificate traceable to national standards is provided with each unit.
Q2: How often should the RI-2 Vehicle-Mounted Bump Integrator be calibrated?
A2: We recommend annual calibration by authorized technicians or by iRoad after-sales service center. For high-frequency laboratory use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. Custom configurations may require 20-30 days. iRoad provides on-site installation, commissioning and operator training for major equipment; remote video guidance is available for standard laboratory instruments.
