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JJF 1349-2012 English PDF

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JJF 1349-2012: Calibration Specification for Tool Theodolites
Status: Valid

JJF 1349: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJF 1349-2012English349 Add to Cart 3 days [Need to translate] Calibration Specification for Tool Theodolites Valid JJF 1349-2012
JJF 1349-1990English199 Add to Cart 2 days [Need to translate] O.T.N. of Primary Standard for Neutron Source Strength Obsolete JJF 1349-1990

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Basic data

Standard ID JJF 1349-2012 (JJF1349-2012)
Description (Translated English) Calibration Specification for Tool Theodolites
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A52
Classification of International Standard 17.040
Word Count Estimation 15,181
Quoted Standard JJF 1071-2010
Regulation (derived from) AQSIQ Announcement No. 96 of 2012
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to instruments theodolite calibration.

JJF 1349-2012: Calibration Specification for Tool Theodolites

---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 Tool Theodolites People's Republic of China National Metrology Technical Specifications Theodolite tool calibration specifications Issued on. 2012-06-18 2012-09-18 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Theodolite tool calibration specifications CalibrationSp Focal point. the National Technical Committee of length measuring geometry The main drafting units. China Aviation Industry Corporation Beijing Great Wall Measurement and Testing Technology Institute The study measured test Hospital of Guizhou Province Aviation Great Wall Measurement and Testing (Tianjin) Co., Ltd. Participated in the drafting. the Shaanxi Provincial Institute of Metrology Tianjin Institute of Supervision and Testing Weighing PLA 61 365 troops specializing in mapping metering station This specification length measuring geometry commissioned the National Technical Committee is responsible for interpretation The main drafters of this specification. Teachers will be born (China Aviation Industry Corporation Beijing Great Wall Measurement and Testing Technology Institute The study) Lv Xiaojie (Guizhou Province Measurement and Testing Institute) Zhang Hong (CNAC measurement test Great Wall (Tianjin) Co., Ltd.) Drafters participate. Liu Ying (Shaanxi Provincial Institute of Metrology) Tian Yong (Tianjin Supervision and Testing Institute of Metrology) Tangcui Rong (China Aviation Industry Corporation Beijing Great Wall Measurement and Testing Technology Institute The study) Liu Zhichao (PLA 61 365 troops mapping professional metering station)

table of Contents

Introduction (Ⅱ) 1 Scope (1) 2. References (1) 3 Overview (1) 4 Metrological characteristics (2) 4.1 micrometer and the backward error indication difference (2) 4.2 degree of collimation axis and perpendicular to the horizontal axis (2) 4.3 degree horizontal and vertical vertical axis (2) 4.4 side mirror surface of the horizontal and vertical (2) 4.5 boresight telescope focusing fluctuation error (2) 4.6 stars displacements of reticle coincides with the center axis collimation (2) 4.7 lateral telescope with the main telescope verticality (2) Calibration Condition 5 (2) 5.1 environmental conditions (2) 5.2 measurement standards and equipment (2) 6 calibration items and calibration methods (2) 6.1 micrometer indication error and return the difference (2) 6.2 degree of collimation axis and perpendicular to the horizontal axis (3) 6.3 degree horizontal and vertical vertical axis (3) 6.4 side mirror surface of the horizontal and vertical (4) 6.5 boresight telescope focusing fluctuation error (4) 6.6 stars displacements of reticle coincides with the center axis collimation (4) 6.7 lateral telescope with the main telescope verticality (4) 7 Calibration result expression (5) 8 Recalibration interval (5) Appendix A calibration record format and a sample (6) Appendix B Measurement Uncertainty Example (7) Appendix C calibration certificate page format (9)

Introduction

Theodolite tool measurement and calibration method with reference to the characteristics JJG414 "theodolite" and JJG (aviation) Corresponding provisions 45-1988 "theodolite tool" in the regulations. Theodolite tool calibration specifications

1 Scope

This standard applies to tool theodolite calibration. 2. References This specification refers to the following documents. JJF 1071-2010 National Calibration Specifications writing rules For dated references, only the dated edition applies to this specification; undated reference documents Member, the latest edition (including any amendments) applies to this specification.

3 Overview

Perpendicular to the tool straight through self-collimation theodolite, reflection, projection, etc., to establish its telescope collimation axis Line, plane and measuring the angular displacement or linear displacement of optical instruments. Theodolite tool is mainly used in the aerospace, heavy machine Shipbuilding and other industries as well as mechanical installation and adjustment of large machinery. Its shape shown in Figure 1. Figure 1 tool theodolite 1- azimuth stop pulley; 2- orientation micro handwheel; 3- pitch micro handwheel; 4- side mirror; 5- light source; 6- level Calibration screw; 7- vial; 8- focusing hand wheel; 9- optical micrometer drum; 10- displacement reticle

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