Measuring system equipped with two inductive loops and a polymer pressure sensor

Najprostszy system umożliwiający ważenie pojazdów w ruchu.

Required Module:
p. WIM – a module that works with two inductive loops and a single polymer pressure sensor
Required sensors:
2 inductive loops
Polymeric pressure sensor

Module: p. WIM

Measured parameters:

• vehicle arrival time (with 0.01s resolution),
• vehicle counting,
• vehicle interval (0.01s resolution),
• magnetic profile and vehicle classification based on it
  (distinguished by 4 classes: passenger cars, vans, trucks, buses)
• trailer detection,
• speed measurement (measurement error 1. 5%),
• length measurement (measurement error 2%),
• number of axles,
• distance between axles,
• classification by length (4 vehicle classes are distinguished),
• classification by FHWA F or ALT,
• axle tensions (measurement error 20 – 30%),
• total vehicle mass (measurement error 15 – 20%).

Determined characteristics (variation as a function of time):

• traffic density,
• flow (mass and vehicles),
• lane occupancy,
• average speed,
• number of vehicles by class (according to selected classification scheme).

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