JJF 1349-2012 English PDFUS$349.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. JJF 1349-2012: Calibration Specification for Tool Theodolites Status: Valid JJF 1349: Historical versions
Basic dataStandard 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 ContentsIntroduction (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)IntroductionTheodolite 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 specifications1 ScopeThis 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 OverviewPerpendicular 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 ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of JJF 1349-2012_English be delivered?Answer: Upon your order, we will start to translate JJF 1349-2012_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of JJF 1349-2012_English with my colleagues?Answer: Yes. The purchased PDF of JJF 1349-2012_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version JJF 1349-2012?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJF 1349-2012 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |