Geoscanners HA-2000
HORN ANTENNA
The HA-2000 GPR horn antenna has all the properties of the HA-1000, but it has a double the center frequency. This means that thinner layers of asphalt in road investigations can be isolated easily.
This antenna is equipped with very sensitive electronics and the weak signal is further amplified with a very low noise amplifier to obtain access to even the faintest of the reflections.
By shifting the Bandwidth and the center frequency of the antenna to 2GHz as expected we got an antenna working on the same principles like the HA-1000. The difference is that now we have a significantly improved resolution and therefore can determine much thinner layers. This of course comes at the price of maximum penetration depth.
Nevertheless, when combined with HA-1000 and/or FLB-390 into a full fledged Road Survey System this antenna will record even the smallest changes in the asphalt layer. This is very valuable in planning the asphalt layer replacement or localized reparation.
It is also very important to keep the antenna distance from the surface between 50 and 75 centimeters for best results. The combination of narrow beams and high speeds makes this antennas hard to use when it comes to utility detecting (hyperbolas are narrower). On the other hand these antennas can reveal shallow voids, delaminations and thickness of the layers with ease. This antenna is often used in survey systems where it is combined with HA-2000 and/or FLB-390 to collect all the relevant data.
With a little ingenuity the antenna can easily be used for tunnel lining (with no rebar mesh reinforcement) inspections (consider it an upside down road survey).
Area of Application
- High speed read assessment
- High speed tunnel lining assessment
- Ballast assessment
Features
Technical specifications
