GB/T 16818-1997 中、短程光电测距规范

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基本信息
标准名称:中、短程光电测距规范
英文名称:Specification for short to medium ranges electro-optical distance measurements
中标分类: 综合 >> 测绘 >> 精密工程与地籍测绘
ICS分类: 数学、自然科学 >> 天文学、大地测量学、地理学
替代情况:被GB/T 16818-2008代替
发布部门:国家技术监督局
发布日期:1997-05-02
实施日期:1998-02-01
首发日期:1997-05-28
作废日期:2008-12-01
主管部门:国家测绘局
提出单位:国家测绘局
归口单位:全国地理信息标准化技术委员会
起草单位:国家测绘局测绘标准化研究所
起草人:彭玉辉、任道胜
出版社:中国标准出版社
出版日期:2004-04-11
页数:平装16开, 页数:21, 字数:36千字
书号:155066.1-14299
适用范围

本规范适用于二、三、四等大地测量、城市测量、工程测量(包括施工测量)的各等级、等外级平面控制网以及地形控制测量等中、短程光电测距工作,不涉及控制网的布设问题。其他精度电测距可参照执行。

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所属分类: 综合 测绘 精密工程与地籍测绘 数学 自然科学 天文学 大地测量学 地理学
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Product Code:SAE AS22759/89
Title:Wire, Electric, Polytetrafluoroethylene/Polyimide Insulated, Normal Weight, Silver Coated, High Strength or Ultra High Strength Copper, Alloy, 600-Volt, 200 °C
Issuing Committee:Ae8-D Wire And Cable Committee
Scope:Amendment 1 of AS22759/89BProduct Code:SAE ARP5416
Title:Aircraft Lightning Test Methods
Issuing Committee:Ae-2 Lightning Committee
Scope:This document is one of a set covering the whole spectrum of aircraft interaction with lightning. This document is intended to describe how to conduct lightning direct effects tests and indirect system upset effects tests. Indirect effects upset and damage tolerance tests for individual equipment items are addressed in DO-160/ED-14. Documents relating to other aspects of the certification process, including definition of the lightning environment, zoning, and indirect effects certification are listed in Section 2.This document presents test techniques for simulated lightning testing of aircraft and the associated systems. This document does not include design criteria nor does it specify which items should or should not be tested. Acceptable levels of damage and/or pass/fail criteria for the qualification tests must be approved by the cognizant certification authority for each particular case. When lightning tests are a part of a certification plan, the test methods described herein are an acceptable means, but not the only means, of meeting the test requirements of the certification plan.Each test method is set out in a uniform format, describing the test purpose, test object, test setup, test waveforms (voltage and/or current), measurements and data recording, test procedure and data interpretation. Guidance is provided on how to select the appropriate test or series of tests, and how the test results can be assessed.Natural lightning is a complex and variable phenomenon and its interaction with different types of vehicles may be manifested in many different ways. It is not intended that every test described herein be applied to every system requiring lightning verification tests. The document is written so that specific aspects of the environment can be called out for each specific program as dictated by the vehicle design, performance and mission constraints.