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JJF 1214-2008 English PDF

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JJF 1214-2008: Calibration Specification for Baseline and Basenet
Status: Valid

JJF 1214: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJF 1214-2008English579 Add to Cart 5 days [Need to translate] Calibration Specification for Baseline and Basenet Valid JJF 1214-2008
JJF 1214-1990English199 Add to Cart 2 days [Need to translate] O.T.N.of Taper Primary Standard for Circle Taper Gauge Obsolete JJF 1214-1990

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Basic data

Standard ID JJF 1214-2008 (JJF1214-2008)
Description (Translated English) Calibration Specification for Baseline and Basenet
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A52
Classification of International Standard 17.040
Word Count Estimation 25,259
Date of Issue 2008-12-23
Date of Implementation 2009-03-23
Quoted Standard GB 16789-1997; GB/T 14267-1993; JJF 1118-2004; JJG 703-2003; JJG 306-2004; JJF 1001-1998; JJF 1094-2002; JJF 1059-1999
Regulation (derived from) AQSIQ Announcement No. 143 of 2008
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to EDM, total station sites and the length of the base length of baseline global positioning system receiver field calibration and verification period.

JJF 1214-2008: Calibration Specification for Baseline and Basenet

---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.
Calibration Specification for Baseline and Basenet People's Republic of China National Metrology Technical Specifications The length of the field calibration baseline specification Posted 2008-12-23 2009-03-23 implementation The State Administration of Quality Supervision, Inspection and Quarantine released The length of the field calibration baseline specification This specification by the State Administration of Quality Supervision, Inspection and Quarantine approved on December 23, 2008, and from From March 23, 2009 into effect. Focal point. the National Technical Committee of length measuring geometry Main drafting unit. the PLA Information Engineering University of Surveying and Mapping National Testing Center EDM Participated in the drafting unit. China Institute of Seismology Bureau Henan Institute of Metrology This specification entrusted focal point responsible for the interpretation The main drafters of this specification. Proud to pay child (PLA Information Engineering University of Surveying and Mapping Institute) Qiwei Jun (National Testing Center EDM) Ling mold (China Institute of Seismology Bureau) Drafters participate. Fan Gang (PLA Information Engineering University of Surveying and Mapping Institute) Fang Aiping (National Testing Center EDM) ZHANG Zhi-feng (China Institute of Seismology Bureau) Xue Ying (PLA Information Engineering University of Surveying and Mapping Institute) Zhang Weidong (Henan Institute of Metrology)

table of Contents

1 Scope (1) 2. Referenced Documents (1) 3 Terms (1) 4 Overview (1) 5 Metrological characteristics (2) Ranging Baseline 5.1 (2) 5.2 GPS Baseline (2) Calibration Condition 6 (2) 6.1 environmental conditions (2) 6.2 calibration standard device (2) 7 calibration items and calibration methods (3) 7.1 Baseline Ranging (3) 7.2 GPS baseline (6) 8 ranging verification baseline (7) 8.1 verification requirements (7) 8.2 Verification of the rangefinder multiplication constant calibration (8) 8.3 Verification methods ranging from baseline (8) 8.4 Use of verification results (9) 9 calibration results expression (9) Calibration interval 10 (9) Appendix A baseline calculation used Yinwa Ji ruler line length table (Example) (10) Appendix B segment length calculation (example) (11) Appendix C to calculate the final length of each section (example) (12) Appendix D tilt correction calculation (example) (13) Appendix E Using Yin Waji line scale for ranging baseline calibration uncertainty assessment (14) Uncertainty Appendix F GPS calibration baseline assessment (16) Baseline Verification Annex G sixth analytical method (17) Appendix H ranging baseline correction result (Example) (20) The length of the field calibration baseline specification

1 Scope

This specification is applicable to optical range finder, total station baseline length field and a global positioning system (GPS) receiver length Calibration and verification within the field of the baseline period.

2 Citations

GB 16789-1997 than long baseline measurement specification GB/T 14267-93 short geodimeter JJF 1118-2004 Global Positioning System (GPS) receiver (navigation and geodetic type type) calibration specification JJG703-2003 geodimeter JJG306-2004 24m Yinwa Ji-foot line JJF 1001-1998 common measurement terms and definitions JJF 1094-2002 measuring instrument characteristics evaluation JJF 1059-1999 Evaluation and Expression of Uncertainty in Measurement When using this specification it should be noted that using the currently valid version of the documents cited.

3 Terms

3.1 Fine frequency finefrequency EDM for accurate determination of the maximum signal frequency modulation distance. 3.2 offset frequencyoffset Fine frequency measured value and the nominal value (or UUT displayed value) of the difference. 3.3 baseline length field baselineandbasenet Ground signs stable, clear, with sufficient accuracy a set of measurement points, the distance between the landmark known as the length of the baseline The length of the standard value.

4 Overview

Baseline length field is used to test (or calibration) Total Station, range finder and a GPS receiver and other geodetic instruments The standard length of the outdoor unit. The length of the field includes at least one baseline EDM calibration baseline (referred ranging baseline). Ranging from the baseline is located Several observation pier (or ground point, hereinafter the same) on a line formed between the marked distance meter traceable to definition. The distance between adjacent landmarks combined into a plurality of standard length, and total station for verification rangefinder ranging project. Global Positioning System (GPS) receiver baseline length field (hereinafter referred to as GPS baseline) include USBL, Short baseline, baseline, and four kinds of long baseline baseline, its length is divided in Table 1. GPS measurements meet the ring Environmental requirements under the premise of short baseline can be shared with baseline distance, it may be separately laid into a polygon mesh. Baseline and Long Baseline generally laid into a triangle mesh shape. Through the four baseline should at least have a common point, in order to harmonize with a

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