page_title: Tribrach (instrument)
hierarchical_section_title: Tribrach (instrument)
caption_attribution_description: English: Tribrach with optical plummet for surveying instruments like for example total stations and more modern theodolites. The eyepice for the optical plummet is the black cylinder pointing to the lower left corner of the image. Svenska: Trefot med optiskt lod för geodetiska instrument som till exempel totalstationer och modernare teodoliter. Det optiska lodets okular är den svarta cylinder som pekar mot bildens nedre vänstra hörn.
context_page_description: A tribrach is an attachment plate used to attach a surveying instrument, for example a theodolite, total station, GNSS antenna or target to a tripod. A tribrach allows the survey instrument to be repeatedly placed in the same position over a surveying marker point with sub-millimetre precision, by loosening and re-tightening a lock to adjust the instrument base in a horizontal plane.
context_section_description: A tribrach is an attachment plate used to attach a surveying instrument, for example a theodolite, total station, GNSS antenna or target to a tripod. A tribrach allows the survey instrument to be repeatedly placed in the  same position over a surveying marker point with sub-millimetre precision, by loosening and re-tightening a lock to adjust the instrument base in a horizontal plane.
caption: A tribrach with an optical plummet (the black cylinder pointing to the left lower corner of the image).
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