标准编号：ISO 12858-3:2005
中文名称：光学和光学仪器 测地信器的辅助装置 第3部分： 三角基座
英文名称：Optics and optical instruments — Ancillary devices for geodetic instruments — Part 3: Tribrachs
发布日期：2005-02
标准范围
This part of ISO 12858 specifies the most important requirements of tribrachs used in geodesy for theconnection of the instrument's body with its base.The requirements in this part of lSO 12858, however, do not guarantee the full interchangeability of theinstrument's body with tribrachs of different manufacturers, but give the detailed specifications of the clampsystem to ensure the reliable mounting and clamping without prejudicing their performance and theirusefulness. There are mainly two types of tribrach in use, categorized in this part of ISO 12858 as Types Wand Z.This part of ISO 12858 is applicable to tribrachs which are used for levels, theodolites, tacheometers, GPSequipment, EDM instruments and in combination with targets, reflectors, antennae etc.
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