The Enviko CET-40 Quartz Weigh-In-Motion (WIM) system offers a cutting-edge solution for dynamic highway vehicle weighing, providing comprehensive data and robust performance for effective overloaded management and WIM direct enforcement. This system, utilizing advanced Enviko CET8312 quartz sensor technology, is designed to enhance road safety, protect infrastructure, and optimize traffic flow.
Key Functional Outputs and Capabilities
Powered by CET8312 quartz sensors embedded in the road surface, the CET-40 WIM system captures vital vehicle data as they pass over, including:
- Axle load & axle group weight
- Vehicle gross weight
- Axle configuration (e.g., tandem, tridem)
- Axle spacing and tire count
- Speed and direction
- Overload rate and road surface pressure
- Temperature conditions
- Vehicle type classification
The system's basic principle involves embedding
quartz weighing sensors in the road surface to detect pressure, speed, and horizontal force of each passing vehicle's axle, calculating individual axle weights and the total vehicle weight. This makes it an invaluable tool for overloaded management, allowing authorities to identify and address overloaded vehicles efficiently.
System Performance Parameters
The Enviko CET-40 boasts impressive technical specifications ensuring reliable and accurate measurements:
- Maximum Single Axle (Axle Group) Load: 40 tons
- Minimum Single Axle (Axle Group) Load: 0.5 tons
- Scale Interval (d): 50 kg
- Single Axle Overload Capacity: 150%
- Temperature Range: -40°C to 80°C
- Relative Humidity Range: 0 to 95%
- Service Life: Over 10 years (under good road conditions)
- Accuracy:
- Class 2: Verification Accuracy ≤±1%, Operating Accuracy ≤±2% for speed range 0.5 - 40 km/h
- Class 5: Verification Accuracy ≤±2.5%, Operating Accuracy ≤±5% for speed range 0.5 - 200 km/h
Notably, the system demonstrates High-Speed Weigh In Motion capabilities, maintaining high accuracy even at elevated speeds.
Main Equipment Parameters
The CET-40 weigh-in-motion system comprises several key components:
- CET 8312 Quartz Weighing Sensors: These sensors utilize the piezoelectric effect of quartz crystals to generate an electrical charge when a wheel's weight acts upon them. This charge is then converted into a voltage signal for processing. They are crucial for vehicle wheel axle weighing and auxiliary speed detection.
- Rated Load (Single Axle): 0.5t - 40t
- Overload Capacity: 150%FSO
- Allowable Passing Speed: 0.5 - 200 km/h
- Protection Level: IP68
- CET-SJ402T Vehicle Detector: This component is essential for vehicle separation and system wake-up functions, ensuring accurate judgment of passing vehicles and distinguishing intervals between them. It transmits signals to the quartz weighing controller for joint vehicle detection.
- Correct rate of vehicle separation judgment by inductive loops (when vehicle spacing
≥ 2m): ≥99%
- Not affected by adverse weather conditions
- CET-40 Quartz Weighing Controller: This is the brain of the system, processing signals and data from various sensors and vehicle detectors to calculate axle weight, total weight, and other data. The Enviko CET-40 controller features:
- Automatic data caching and re-sending capabilities for data uniqueness and integrity
- Communication Interface: Standard RS232 serial port, COM1
- Vehicle separation accuracy:≥99%
- Vehicle type recognition rate:≥99%
- Protection class: IP65
- Quartz Weighing Control Cabinet: Made of 304 stainless steel, this cabinet houses the weighing controller and other devices, with an integrated air conditioner for temperature, heating, and dehumidification control. It also includes lightning protection and anti-surge impact devices.
- Temperature Range: -40°C~60°C
- Relative Humidity Range: 0~95%
Application Scenarios
The Enviko CET-40 High-Speed Weigh In Motion system is ideal for a variety of applications, particularly in contexts requiring robust overloaded management and support for WIM direct enforcement. Its ability to accurately measure dynamic wheel forces and provide comprehensive vehicle data makes it suitable for:
- Highway weight enforcement stations
- Pre-selection for static weighbridges
- Traffic data collection and analysis
- Bridge protection and pavement preservation
- Logistics and fleet management
The long service life and high accuracy, even at high speeds, solidify Enviko's CET-40 as a reliable solution for modern traffic management challenges.
Enviko Technology Co.,Ltd
E-mail: info@enviko-tech.com
http://www.enviko-tech.com/
https://www.envikotech.com
Chengdu Office: No. 2004, Unit 1, Building 2, No. 158, Tianfu 4th Street, Hi-tech Zone, Chengdu
Hong Kong Office: 8F, Cheung Wang Building, 251 San Wui Street, Hong Kong
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