Products Sensors & Accessories In-Road Sensors
In-Road Sensors
IRD DYNAX® Axle Sensor is a rugged and reliable permanent resistive sensor specially designed to operate independent of speed in stop-and-go traffic. IRD DYNAX® Axle Sensors can either be permanently installed with epoxy in a sawcut in asphalt or concrete road surfaces; or held in place by locking bars in a Treadle frame.
The IRD DYNAX® Single/Dual (S/D) Tire Sensor is durable and reliable, using force sensing resistive technology to determine single or dual tire groups on vehicle axles. The sensor operates independent of vehicle speed and in stop-and-go traffic. The Single/Dual Tire Sensor can be used alone or in conjunction with IRD Treadle Systems and interfaces to the Singe/Dual Logic Card. When used in conjunction with IRD treadles, the Single/Dual tire sensor will provide additional classification information that can be used in pre-classification and post-auditing situations, increasing the accuracy of the classification system.
Piezoelectic Roadtrax BL Sensor
The Roadtrax BLSensor is unencapsulated, conforming to the road profile giving a clean easy-to-read signal that translates into accurate vehicle count, speed and WIM data. The BL sensor is available both as a Class 1 sensor for the highest level of uniformity needed for WIM applications, and as a Class 2 sensor which is more cost effective for counting, classifying, high speed toll booths, and speed detection. These sensors are directly compatible with all counters and WIM systems that have piezoelectric input.
Piezoelectric Vibracoax Sensor
The piezoelectric sensor VIBRACOAX can be installed directly into a slot in the road for permanent applications (bare or encapsulated). VIBRACOAX sensors are available in two classes: Class 1 – very uniform in performance and very sensitive, making them ideal for WIM applications. Class 2 – more cost-effective, yet sensitive enough to be excellent for the axle-detection function in both WIM and AVC (automatic vehicle classification).
Quartz sensors are used for medium and high-speed Weigh-In-Motion (WIM) and/or vehicle classification applications. They utilize quartz crystal force sensing technology. These sensors are easily installed flush with the surface of any existing or new asphalt or concrete pavement surface with epoxy adhesive.
Reliably detects vehicle presence by monitoring magnetic flux changes created when metal objects such as motorcycles, cars, trucks, railcars or heavy equipment are introduced.
Inductive loops may be used alone, or can be incorporated with other traffic systems to provide information regarding vehicle presence. A loop is a wire wrapped around and around to form an inductor. The loop's inductance changes and produces a readable signal when a vehicle passes over it.
