Comparison Of The Performance Of Different Quartz Dynamic Weighing Sensors

 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 abnormal driving than bending/flat plate sensors.

9. Quartz and strain gauge sensors have higher installation requirements, while bending/flat plate sensors have lower requirements.

10. The vehicle driving feeling is more noticeable for bending/flat plate sensors, while others have no impact.

11. The optimal reconstruction length is around 36-50 meters for all sensors.

Comparison of the performance of different quartz dynamic weighing sensors
Comparative item	Quartz sensor(Enviko)	Quartz sensor(Kistler)	Bending/Flat plate	Strip sensor(Intercomp)
Technical principles	1.Fully digital piezoelectric sensor, The acquisition speed is 1000 times that of resistance strain gauge sensors 2.Incomplete wheel load measurement, single wheel weight is collected in segments which can fully reflect the actual weight of the wheel load.	1.Fully digital piezoelectric sensor, The acquisition speed is 1000 times that of resistance strain gauge sensors 2.Incomplete wheel load measurement, single wheel weight is collected in segments, which can fully reflect the actual weight of the wheel load.	1.Mechanical combined structure, individual sensors and steel plates are composed of physical structures 2.The principle of resistance strain gauge, when the sensor is subjected to force, it will produce mechanical deformation, and the size of the mechanical deformation will reflect the size of the force.	Integral resistance strain sensor, when the sensor is stressed, it will produce mechanical deformation, and the amount of mechanical deformation will reflect the amount of force.
Installation layout	The amount of grooves is minimal and the damage to the road surface is minimal. The average excavation area is less than 0.1 square meters per lane	The amount of grooves is minimal and the damage to the road surface is minimal. The average excavation area is less than 0.1 square meters per lane.	Destroy 6 square meters ofroad surface/lane	The amount of grooves is minimal and the damage to the road surface is minimal. The average excavation areais less than 0.1 square meters per lane.
Price	normal	expensive	cheap	expensive
Service life	3~5 years	3~5 years	1-3 years	3~5 years
Weighing accuracy	CLASS 2、5、10	CLASS 2、5、10	CLASS 5、10	CLASS 2、5、10
Stability below 50km	Stablize	Stablize	Better	Stablize
Stability over 50km	Better	Better	Stablize	Stablize
Factors affecting accuracy	none	none	Affected by temperature, temperature compensation sensor or algorithm compensation is required	Affected by temperature, temperature compensation sensor or algorithm compensation is required
Abnormal driving detection-crossing road	Full pavement, weighing accuracy is not affected	Full pavement, weighing accuracy is not affected	Full pavement, increase the number of built-in sensors	Full pavement, weighing accuracy is not affected
Abnormal driving detection-crush gap	Special layout solves inaccurate seam accuracy	No optimized layout	not affected	No optimized layout
Abnormal driving detection-escape weighing	Multi-row layout, cannot be skipped	Multi-row layout, cannot be skipped	easy to skip	Multi-row layout, cannot be skipped
Installation process	Strict installation process	Strict installation process	Integral pouring,lowinstallation process requirements 整体浇注，安装工艺要求低	Strict installation process
Whether drainage is required	none	none	need	none
Whether it affect the driver	none	none	Feeling obvious	none
Whether affect traffic safety	none	none	The surface steel plate area is large, rainy weather has a greater impact on high-speed vehicles, and there is a possibility of lateral sideslip.	none
Optimal pavement reconstruction required length	Below 8 lanes in bothdirections, 36 to 40 meters	Below 8 lanes in both directions36 to 40 meters	Below 8 lanes in both directions, 36 to 40 meters	Below 8 lanes in both directions, 36 to 40 meters
Optimal pavement reconstruction required length	More than 8 lanes in both directions, 50 meters	More than 8 lanes in both directions, 50 meters	More than 8lanes in both directions, 50 meters	More than 8 lanes in both directions 50meters

In summary, quartz sensors have better overall performance but higher prices, while bending/flat plate sensors have cost advantage but slightly lower accuracy and stability. The optimal solution depends on specific project needs.

Enviko Technology Co.,Ltd

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