and Navigation system (APNS)
Have you ever tried to hang a poster on a concrete wall?
Then you know what you are in for if you have to use the typical paper grid to orient a GPR concrete scanner.
The C-Thrue APNS consists of two L-shaped rails and three DISTO laser distance meter (LDM) emitters that are mounted in the front and sides of the C-Thrue chassis.
The rails are backed with a special reusable adhesive that holds them in place on concrete much more securely than the folded up tape behind your old Bon Jovi poster.
Mount the rails and power on to activate the laser emitters and orient the C-Thrue in 2D space. As you move the chassis over the surface, the three LDMs provide precise positioning data to the C-Thrue's onboard software.