Settlement Monitoring 360 Degree Prism 2mm Robotic Prism

Place of Origin China
Brand Name Leosurvey
Model Number TB360
Minimum Order Quantity 5 Pieces
Price 60USD~80USD
Packaging Details Box and Carton
Delivery Time 3-5 work day
Payment Terms T/T
Supply Ability 100 pieces per month
Product Details
Prism Constant 2mm Prism Size 25.4mm
Range 400m Accuracy ≤5"
Type Trimble Condtion New
Package Soft Bag As Inner Pack Catagory Total Station Accessories
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Settlement Monitoring 360 Degree Prism


2mm 360 Degree Prism


Settlement Monitoring 2mm robotic prism

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Product Description

Timble Type 360 Degree Surveying Prism for Robotic Total Station


Model: TB360



Prism Constant: 2mm

Prism Angle Accuracy: ≤5"

Prism Size: 25.4mm

Target Range:400m



Trimble Type 360 degree prism assembly features seven 25.4mm silver-coated prisms and incorporates a protective rubber bumper on the exterior ring.

The built in bulls-eye bubble helps keep the prism level when used with a stakeout point.

The prism has a 5/8*11 mounting thread.

This 360 prism is compatible with all robotic total station like Trimble, Topcon, Sokkia, Leica etc.


Optical Survey Prism Applications:

Survey prisms are used by surveyors and engineers to measure the change in position of a target that is assumed to be moving. Survey prisms are used for a wide range of monitoring applications including:

  • Rail Monitoring
  • Settlement Monitoring
  • Displacement Monitoring
  • Deformation Monitoring
  • Convergence Monitoring

Prism Range
Surveying Prisms, also known as retro-reflectors, redirect a measuring beam back to the EDM (Electronic Distance Measurement) for processing distance. There are two main factors for good range measurement: prism diameter and beam deviation. If the beam deviation is not accurate then the returned beam will miss the EDM completely. This occurs mainly near the maximum range of the EDM.


Prism Holder Accuracy
Prism accuracy is determined by the physical location of the prism in its canister and then to the prism holder.

Survey Prism Offsets
Some Surveying Prisms have an offset due to the fact that the transmitted beam from the EDM takes longer to enter and exit the prism. The longer time translates to a longer distance measured. The distance is corrected by using an 'offset' and/or positioning the prism in relationship to the plumb line of the prism holder. Common offsets are 0, -17.5 mm, -30 mm, -34 mm, and -40 mm. The offset is determined by multiplying the height of the prism against the refractive index of the glass used.


Settlement Monitoring 360 Degree Prism  2mm Robotic Prism 0

Settlement Monitoring 360 Degree Prism  2mm Robotic Prism 1