RGR-3 Gravimetric Vehicle-Mounted Road Dust Accumulation Testing

Main Technical Parameters of the System

1、 Purpose

Used to measure road dust accumulation load, enabling the vehicle-mounted system to perform automated measurement while operating, sampling, and weighing simultaneously on the road.

2、 Working Principle

Utilizes vacuum sampling principle. The vehicle body is equipped with a liftable sampling head. During measurement, the sampling head automatically lowers, and a high-negative-pressure suction pump initiates sampling. The vehicle moves slowly forward while automatically measuring the distance traveled. Based on the sampling head size and the distance traveled, the sampling area is automatically calculated. After traveling a certain distance, the system automatically weighs the collected dust and calculates the dust concentration.

3、 Main Configuration

Commercial vehicle (optional), vehicle body modification (certified), vehicle-mounted measurement system controller, high-negative-pressure vacuum suction pump, primary lifting device, secondary lifting sampling head, pressure monitoring device, automatic disengagement and closure sample collection weighing device, built-in balance module, GPS positioning device, wireless communication device, vehicle information communication device, sampling head video monitoring device, etc.

4、 Main Functions and Specifications

4.1 Vehicle-Mounted Measurement System Controller

Can set the travel distance for a single measurement; can display real-time working video of the sampling head; can set the negative pressure value for sampling; can initiate the lifting and lowering of the sampling device.

4.2 High-Negative-Pressure Vacuum Suction Pump

Suction negative pressure not less than 15 kPa, rated power not less than 1.2 kW

4.3 Primary Lifting Device

Lifting height not less than 25 cm, load capacity not less than 100 kg

4.4 Secondary Lifting Sampling Head

Lifting distance not less than 5 cm, strain force less than 10 kg

4.5 Pressure Monitoring Device

Measures the suction negative pressure of the sampling head in real time, with a measurement error of less than 0.1 kPa

4.6 Automatic Disengagement and Closure Sample Collection Weighing Device

4.6.1 Automatically releases under system control

4.6.2 Automatically tightens under system control

4.6.3 The sample collection device disengages from the sampling system for weighing

4.6.4 Sample collector weighs less than 800 g

4.7 Balance Module

Weighing capacity 3 kg, resolution 0.01 g

4.8 Special Road Condition Handling During Operation

The system is equipped with a function to lift the sampling device, ensuring avoidance when the road surface is uneven or obstacles are present.

If the suction head is blocked by large particles, the system will stop the suction pump, continue moving forward to dislodge the particles through vibration, automatically lift the sampling head to remove the large particles, and then resume sampling.

5、 Functions of the Upper Computer Data Processing System

5.1 Automatically records travel distance and calculates sampling area

5.2 Automatically weighs and records initial and final weights, calculates net weight and concentration values

5.3 Records sampling pressure in real time

5.4 Features alarm function for excessively low or high sampling pressure

5.5 Equipped with GPS positioning function, records latitude and longitude at the start and end of sampling intervals

5.6 All data can be exported as Excel reports for data processing

5.7 Sampling operations and data queries can be performed via a mobile client

Qingdao Rongguang Electronic Technology Co., Ltd. provides technical support and comprehensive after-sales service for this instrument!