3 Advantages of Wireless Magnetometers for Vehicle Detection
July 17, 2017
What is a Magnetometer?
Magnetometers can be either wired or wireless, but for the purposes of this article we will focus on wireless magnetometers, which offer important advantages to the end user.
A magnetometer works by using a passive sensing technology to detect large ferrous objects (for example, a truck, automobile, or rail car) by measuring the change in the ambient magnetic field.
When a vehicle alters that magnetic field, the sensor detects those changes. As with other sensors, the range of the magnetometer will depend on the target.
Advantages of Wireless Magnetometers for Vehicle Detection
1. Cost Effective
A wireless magnetometer provides a cost-effective and convenient alternative to other sensing technologies. It requires no wiring or external control box, but achieves an accurate and repeatable response.
2. Minimally Invasive
Wireless magnetometers are much less invasive, less expensive, and easier to commission quickly compared to inductive loops, because wireless magnetometer units are small, self-contained, and don’t require extensive work under the concrete.
The wireless M-Gage sensor from Banner, for example, can be installed above grade or below grade. Below-grade installation requires only a small 3-inch diameter hole drilled into the concrete for each sensor location, which means less downtime for installation.
3. Low Maintenance
A truly wireless magnetometer will not only offer wireless communication via radio, but will also be completely self-contained, including the battery. The long life of the battery ensures continuous performance for years at a time.
For More Information
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