Enviko

  To reduce errors caused by road factors in weighing, the following requirements should be met in the area affecting weighing before and after the weighing equipment at non-site enforcement points: 1. The longitudinal slope should not exceed 2%, and the transverse slope of the road surface should not exceed 2%; 2. When on a cement road surface, deformation joints, pull rods, and fillers should be set between backfilled cement concrete and existing cement road surfaces; 3. When on an asphalt road surface, a gradient transition should be used between backfilled cement concrete and existing asphalt surface layers. Non-site enforcement points should avoid installation on the following road sections: 1. Sections within 200 meters of a flat intersection; 2. Sections with changes in the number of lanes; 3. Overpasses (affecting aerodynamics) and ramps (unevenness) sections; 4. Sections on bridges or other structures that will have dynamic effects on vehicles; 5. Sections under high-volta...

  1.1     Proposal introduction   Weighing in motion pre-detection system of which the full name is no parking highway early warning detection and management of out of limit Internet of things system. This internet of things system has three levels, in which physical perception, data processing and data sharing are included. The system is divided into three parts according to its function, the dynamic weighing and speed measuring part, the vehicle license plate recognition part and the PC software part. According to the working spots, high-speed pre-detection monitoring station, sub-center, and provincial center (optional) these three parts are divided. Detection station is the scene of the perception level of the data collection. When vehicle is running on the highway normally and passing by the dynamic weighing system testing area without stop, the dynamic weighing system can automatically detect the vehicle speed, axl...

  1. In terms of technical principles, quartz sensors (Enviko and Kistler) adopt fully digital piezoelectric technology with faster acquisition speed, and can obtain segmented wheel loads. Bending/flat plate sensors and strain gauge sensors use mechanical structure and strain gauge principles, with slightly lower accuracy. 2. Quartz sensors and strain gauge sensors have smaller installation destruction to road surface, while bending/flat plate sensors have larger affected area. 3. In terms of price, bending/flat plate sensors are relatively cheaper, while quartz and strain gauge sensors are more expensive. 4. The service life is around 3-5 years for all sensors. 5. The weighing accuracy can reach class 2, 5 and 10 for all sensors. 6. The stability is good for all sensors under 50km/h. Quartz sensors have better stability above 50km/h. 7. Quartz sensors are not affected by temperature, while other sensors need compensation. 8. Quartz and strain gauge sensors are better at detecting ...

Infrared Vehicle Intelligent heating function. Self-diagnostic function. Detection output Alarm output function. RS 485 series communication. 99.9% precision for Vehicle separation. Protection Rating: IP67.   Infrared Vehicle

  Piezoelectric Traffic Sensor The CET8311 intelligent traffic sensor is designed for permanent or temporary installation on the road or under the road to collect traffic data. The unique structure of the sensor allows it to be mounted directly under the road in a flexible form and thus conforms to the contour of the road. The flat structure of the sensor is resistant to road noise caused by bending of the road surface, adjacent lanes, and bending waves approaching the vehicle. The small incision on the pavement reduces damage to the road surface, increases installation speed, and reduces the amount of grout required for installation. Piezoelectric Traffic Sensor for AVC (Automatic Vehicle Classification)

  CET-DQ601B Charge Amplifier charge amplifier is a channel charge amplifier whose output voltage is proportional to the input charge. Equipped with piezoelectric sensors, it can measure the acceleration, pressure, force and other mechanical quantities of objects. It is widely used in water conservancy, power, mining, transportation, construction, earthquake, aerospace, weapons and other departments. This instrument has the following characteristic. CET-DQ601B Charge Amplifier

https://www.envikotech.com/   Piezoelectric Quartz Dynamic Weighing Sensor CET8312 CET8312 Piezoelectric Quartz Dynamic Weighing Sensor has the characteristics of wide measuring range, good long-term stability, good repeatability, high measurement precision and high response frequency, so it is especially suitable for dynamic weighing detection. It is a rigid, strip dynamic weighing sensor based on piezoelectric principle and patented structure. It is composed of piezoelectric quartz crystal sheet, electrode plate and special beam bearing device. Divided into 1-meter, 1.5-meter, 1.75-meter, 2-meter size specifications, can be combined into a variety of dimensions of road traffic sensors, can adapt to the dynamic weighing needs of the road surface. Cross section dimensions （ 48mm+58mm ） *58 mm Length 1m, 1.5m, 1.75m, 2m Wheel weighing range 0.05T ～ 35T Overload capacity 150%FS Loa...