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          Literature  Tunnel Sensor - Air Flow
               
         Air Flow Monitor          Air Flow & Direction

 The Air Flow Monitor (AFM) uses ultrasonic technology to measure
air velocity. A single transmitter and an array of four receivers are
contained in the measuring head. Air velocity and direction are
computed from measurements of the phase shifts of the ultrasonic
signals at the receivers. The sensor is compact, contains no
moving components, requires no routine maintenance and is
unaffected by interruptions from passing vehicles and acoustic
reflections within the tunnel.

 

Features 
 

Ultrasonic Measurement Technology
Mmeasurement of bi-directional air-flow from one compact sensor uninterrupted by traffic flow and reflections from lighting and ventilation fittings

Quality and Construction
Ddesigned to withstand the harshest of tunnel environments

 

 Accuracy and Performance
 Mmeasurement precision of +/- 0.2m/sec

 
 
Service and Maintenance

 

 

 

 

 

 

 

 Station Building,
 Station Road,
 Bakewell,
 Derbyshire,
 DE45 1GE
 England

 Tell : 01629 814 351
 Fax : 08700 566 307

 No routine maintenance is required

 

 Please click here to download the data sheet for the AFM
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