Page 2 - E017-0 Vibracoax.PDF

THERMOCOAX
from vision to reality

VIBRACOAX® - a simple, versatile effective sensor

The piezo-electric VIBRA- VIBRACOAX® sensors are Counting
COAX® cable is in fact a cy- available in two classes : n Flexible VIBRACOAX -
lindrical condensator and Ø 1.5 mm - Class 2
when the piezo-electric ma- Class 1 (sensitivity dis- n can be used directly on
terial is disturbed (by flexing persion : ± 7 %): the surface of the road
the cable, compressing it or very uniform in performance n maximum length : 30 m
applying vibration, etc.), a and very sensitive, making
potential is developed be- them ideal for WIM (Weigh- Counting - Speed -
tween the sheath and the In-Motion) applications. Classification
central wire (electrical repre-
senting a capacitor) which is Class 2 (sensitivity dis- n Rigid VIBRACOAX - Ø
directly proportional to the persion : ± 20 %): 3 mm - Class 1 or 2
extent of the disturbance. n Weigh-in-Motion (Class 1)
more cost-effective, yet sen- n automatic vehicle classifi-
Bare sensors cation (class 2)
sitive enough to be excellent
These sensors are used for for the axle-detection func- n maximum length : 30 m
the counting or speed meas- tion in both WIM and AVC Counting - Classificati-
urements and WIM. They are (Automatic Vehicle Classifi- on - Weigh-In-
constituted by a piezo- cation). Motion
electric cable and a flexible
prolongation cable assem- nRigid VIBRACOAX - Ø
bled by an undismountable 6 or 8 mm - Class 1
connection. neasy to install directly into
the road,
On request nweigh-in-motion, high sensi-

VIBRACOAX® sensors could tivity, small dispersion,
be encapsulated for installa- nmaximum length : 4 m
tion into the pavements.
Other area of applications:
Surveillance and
security
VIBRACOAX for road and
®
traffic analysis •Aeroplane load measure-
ment,
Speed and Length of vehicle
Speed and Length of vehicle •Surface pressure variation,
•Control of utilisation rate,
•Pedestrian crossing sur-
veillance,
•Bank safe room surveil-
Class
Class
Class
Class
Class 2
Class 2 Class Class lance,
Class 2
AVR / ATR
AVR / ATR 1 1 1 1 1 1
AVR / ATR
Halte
Halte •No Man's Land trespassing,
WIM
WIM
WIM
WIM
Péage
Péage WIM WIM
•Protection of personnel work-
Load distribution Part of road most used ing around
Load distribution
Part of road most used
an hazardous machine tool,
•Vibration measurement in Data subject to alteration without notice
ground, at sea,
•Measurement of
shock waves.
E017-0
Sales : 40 Bd Henri Sellier - F 92156 SURESNES Cedex - Tel.: +33 (0)1 41 38 80 50 - Fax :+33 (0)1 41 38 80 58
http : //www.thermocoax.com - e-mail: info@thermocoax.fr
Head Office : Planquivon - F 61430 ATHIS DE L’ORNE France - THERMOCOAX S.A.S. au capital de 457 500 € –
RCS CONDE s/NOIREAU B 323 459 925 - N° TVA / VAT Nr : CEE FR 32 323 459 92