PE1O Sensor

Piezoelectric weighing sensor : PE1O

The PE1O sensor is a ceramic piezoelectric sensor that delivers class I signals (7%). Once installed in the road surface, this sensor provides a signal for each axle of the vehicles moving over it.

These signals are then used by the HERA Road Traffic Analysis Station to provide measurements of weight – total, by axle, by axle group, etc.

This sensor is custom made at ECM’s premises. The length of the sensor is defined according to the width of the lane in order to cover its entire width.

With the HERA station, up to 4 piezoelectric sensors can be installed per lane.

Depending on the location of the sensors in the road surface, different data can be obtained.

Key features :

OperationSpecificationsPicturesDocumentations

The piezoelectric sensor PE1O must be installed on the road pavement with the ECM resin P5G. Once installed on the road, whenever axles move over it, it emits a signal that varies based on the pressure exerted.

The signal is then transmitted to the HERA road traffic station, which analyses and measures it to provide different road traffic data (number of axles, speed, length, classification, etc.).

Piezoelectric materials : polarized ceramic,
Speed for dynamic weighing : >20km/h,
Sensitivity dispersion : Class I (7%),
Sensor length : adaptable to the width of the lane, from 1.00 metres up to 4.00 meters maximum,
Sable length : from 25 up to 100 metres maximum,
Cable : RG58,
MTBF (Mean Time Before Failure) : ≈ 5 years (20 million axles), (this is an estimate and not a definite duration)
Insulation resistance : ≥ 10 ¹⁰ Ωm,
Operating temperature : -30 ° C to + 70 ° C,
Installation resin : P5G.