GB/T 16818-2008 English PDF

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GB/T 16818-2008: Specifications for short to medium ranges electro-optical distance measurements
Status: Valid

GB/T 16818: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 16818-2008	349	Add to Cart	3 days	Specifications for short to medium ranges electro-optical distance measurements	Valid
GB/T 16818-1997	839	Add to Cart	6 days	Specification for short to medium ranges electro-optical distance measurements	Obsolete

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Basic data

Standard ID: GB/T 16818-2008 (GB/T16818-2008)
Description (Translated English): Specifications for short to medium ranges electro-optical distance measurements
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A76
Classification of International Standard: 07.040
Word Count Estimation: 15,164
Date of Issue: 2008-06-20
Date of Implementation: 2008-12-01
Older Standard (superseded by this standard): GB/T 16818-1997
Quoted Standard: JJG 703; JJG 414; JJG 100; CH 1002; CH 1003; CH/T 2004
Regulation (derived from): Announcement of Newly Approved National Standards No. 11 of 2008 (No. 124 overall)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the use of measurement range is less than 15km geodimeter (including total station) in progress, the level of short-range distance measurement and accuracy requirements, technical approach, workflow and distance calculations. This standard applies to control surveying, topographic surveying, engineering surveying and other measurements in the job, the short-range optical distance.

GB/T 16818-2008: Specifications for short to medium ranges electro-optical distance measurements

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Specifications for short to medium ranges electro-optical distance measurements ICS 07.040 A76 National Standards of People's Republic of China Replacing GB/T 16818-1997 The short-range optical distance specifications Posted 2008-06-20 2008-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Symbol 1 4 Basic requirements 1 5 distance measurement 2 6 distance calculation 6 Consolidation and turned over 117 ranging information 8 rangefinder maintenance and repair 11

Foreword

This standard replaces GB/T 16818-1997. This standard compared with GB/T 16818-1997, major changes include. --- According to GB/T 1.1-2000 "Standardization Guide Part 1. Standard structure and write rules" of the original standard grid The formula has been modified; --- Modification and adjustment of the "four basic requirements"; --- Deletion of the requirement of point; --- Modify the documentation requirements; --- Modify the outcome of the consolidation and turned over the contents; --- Deleted Appendix A, Appendix B, Appendix C, Appendix D, Appendix E, Appendix F. This standard was proposed by the State Bureau of Surveying and Mapping. This standard by the National Standardization Technical Committee on Geographical Information. This standard was drafted. National Mapping Bureau of Surveying and Mapping Standardization Institute. The main drafters of this standard. Shaw school year, Zhu Jian, Rendao Sheng. This standard replaces the standards previously issued as follows. --- ZBA76002-1987; --- GB/T 16818-1997. The short-range optical distance specifications

1 Scope

This standard specifies the use of the measuring range is within 15km of EDM (including total station) in progress, and the level of short distance measurement Accuracy requirements, technical methods, workflow and distance calculation method. This standard applies to control survey, topographic survey, engineering survey and other measurement operations, the short-range optical distance.

2 Normative references

Following standard terms of this standard reference and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. JJG703 geodimeter JJG414 theodolite JJG100 total station electronic speed measuring instrument CH1002 mapping products for inspection, acceptance CH1003 Plotting Product Quality Standards CH/T 2004 measurements outside the industry, the basic provisions of electronic records

3 Symbol

Symbols used in this standard as follows. D '--- observation distance in meters (m); D --- by measuring the corrected slope distance in meters (m); D0 --- straight chord length in meters (m); D1 --- horizontal distance or the reference ellipsoid of the chord length, in meters (m); D2 --- horizontal distance or reference ellipsoid arc length in meters (m); H1, H2 --- measuring point reference ellipsoid height in meters (m); ellipsoid elevation in place of normal height; K --- refraction coefficient (≈0.13);

4 Basic requirements

4.1 EDM (hereinafter referred to as DME) divided by the measurement range, a short distance rangefinder. Odometry 3km within a short distance of the Instrument, measuring range 3km ~ 15km of medium-range finder, measuring range is more than 15km distance rangefinder. Press rangefinder factory standard differential is nominal, Imputed to 1km ranging standard deviation calculation accuracy divided into four levels (see Table 1). Table 1 Scopefinder accuracy rating Ranging accuracy class standard deviation NOTE. D is the distance measurement unit in kilometers (km). ......

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