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L-Bar Mini Prism
L-Bar Prism is a versatile optical target used with AMTS to monitor displacements and deformations. It can be installed on tunnel walls, building facades, foundation slabs, retaining walls, bridge decks, and almost any other location.
Prism: 25 mm optical glass prism with anti-reflection coating. Prism offset is -25.5 mm for Topcon, Trimble,etc; +8.92 mm for Leica.
Bracket: Black-anodized aluminum bracket has 3-inch arms and two 5/16-inch holes for mounting screws.
L-Bar Micro Prism
L-Bar Micro Prism
The L-Bar Micro Prism is a tiny 0.5 inch prism designed for low visual impact. It is almost invisible in most environments.
Prism: 12.7 mm optical glass prism with silver anti-reflection coating. 5 Arc Second accuracy. Offset is -17.5 mm for Topcon, Trimble, etc.
Bracket: Black-anodized aluminum bracket has 25 mm arms and a single mounting hole.
L-Bar 360 Prism
L-Bar 360 Prism
L-bar mounted 360° prism that can be targeted by two more AMTS as a monitoring point, reference point, or a tie-in point between separate AMTS networks.
Prism: Omni-directional prism consists of 6 triple prisms. Offset is -6.5 for Topcon and Trimble, 27.9 for Leica.
Bracket: Black-anodized aluminum bracket has 3-inch arms and two 5/16-inch holes for mounting screws.
Rail Clip Prism
Rail Clip Prism
Rail Clip prisms are used with AMTS track monitoring systems to provide early warning of unwanted changes in track geometry. It includes two components: a rail clip and an L-Bar prism.
Rail Clip: Available in 5.5 and 6-inch sizes, the rail clip is powered coated steel with two stainless steel clamping screws and one prism mounting screw.
L-Bar Prism: 25 mm optical glass prism with a 3-inch aluminum bracket.
Polymer Road Prism
Polymer Road Prism
Road prisms are low-profile optical targets used to monitor settlement and deformation of roads, pavement, and other surfaces.
Features: The polymer road prism features a low-profile, non-reflective black housing that is nearly invisible to drivers. It is fixed to the surface with an FHWA / AASHTO approved adhesive.
Dimensions: 3.9 dia. x 0.7 inch.
Materials: Injection molded polymer dome
Prism: 0.4 inch optical glass. Choose 10, 20 or 40 degree prism angle to achieve the best match with the elevation of the AMTS.
HD Road Prism
HD Road Prism
Road prisms are low-profile optical targets used to monitor settlement and deformation of roads, pavement, and other surfaces.
Features: The HD road prism has a heavy-duty, cast-aluminum housing made to withstand heavy traffic. It is installed with screws which help keep the prism in place during repeated freeze-thaw cycles. Choose single prism or a double prism (180° opposed).
Dimensions: 4 x 4 x 1 inch.
Materials: Cast aluminum housing.
Prism: 0.7 inch (17 mm) diameter optical glass. Double-sided unit has two prisms. Prism angle is 20°.