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JJF 1350-2012 English PDF

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Q: Should I purchase the latest version JJF 1350-2012?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJF 1350-2012 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.

US$349.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1350-2012: Calibration Specification for Gyrotheodolites
Status: Valid

JJF 1350: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1350-2012	349	Add to Cart	3 days	Calibration Specification for Gyrotheodolites	Valid
JJF 1350-1990	199	Add to Cart	2 days	O.T.N. of Thermal Neutron Fluence Rate(Flux Density) Primary Standard	Obsolete

Similar standards

JJF 1561 JJF 1406 JJF 1280 JJF 1347 JJF 1349 JJF 1345

Basic data

Standard ID: JJF 1350-2012 (JJF1350-2012)
Description (Translated English): Calibration Specification for Gyrotheodolites
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A52
Classification of International Standard: 17.040
Word Count Estimation: 15,143
Quoted Standard: JJF 1071-2010; GB/T 17159-2009; GB/T 17943-2000
Regulation (derived from): AQSIQ Announcement No. 96 of 2012
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies gyroscope calibration.

JJF 1350-2012: Calibration Specification for Gyrotheodolites

---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 Gyrotheodolites People's Republic of China National Metrology Technical Specifications Gyroscope calibration specifications Issued on. 2012-06-18 2012-09-18 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Gyroscope calibration specifications 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 PLA 61 365 troops specializing in mapping metering station Participated in the drafting unit. China Institute of Metrology Aviation Great Wall Measurement and Testing (Tianjin) Co., Ltd. Surveying and Mapping, Information Engineering University 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) Zhangze Yu (People's Liberation Army 61365 troops mapping professional metering station) Liu Zhichao (PLA 61 365 troops mapping professional metering station) Drafters participate. Dual Li (China Institute of Metrology) Zhang Hong (CNAC measurement test Great Wall (Tianjin) Co., Ltd.) Lizong Chun (Institute of Surveying and Mapping, Information Engineering University) Wangji Hu (China Aviation Industry Corporation Beijing Great Wall Measurement and Testing Technology Institute The study)

Introduction (Ⅰ) 1 Scope (1) 2. References (1) 3 terminology and units of measurement (1) 3.1 astronomical azimuth (1) 3.2 Instrument Constant (1) 3.3 sling zero (1) 4 Overview (1) 5 Metrological characteristics (1) 5.1 degree of collimation axis and perpendicular to the horizontal axis (1) 5.2 degree horizontal and vertical axis perpendicular to the (1) 5.3 telescope focusing run error (1) 5.4 pairs in the alignment error (1) One measuring 5.5 in the horizontal direction standard deviation (1) 5.6 Instrument Constant (1) 5.7 Northfinder Repeatability (2) 5.8 Northfinder standard deviation (2) 5.9 north seeking time (2) Calibration Condition 6 (2) 6.1 environmental conditions (2) 6.2 measurement standards and equipment (2) 7 calibration items and calibration methods (2) 7.1 appearance and function tests (2) 7.2 degree of collimation axis and perpendicular to the horizontal axis (2) 7.3 degree horizontal and vertical vertical axis (3) 7.4 telescope focusing run error (3) 7.5 pairs in the alignment errors (4) One measuring 7.6 standard deviation in the horizontal direction (4) 7.7 Instrument Constant (5) 7.8 Northfinder repeatability (5) 7.9 Northfinder standard deviation (6) 7.10 Northfinder time (6) 8 calibration results expression (6) 9 Recalibration interval (6) Appendix A calibration record format include (7) Appendix B Measurement Uncertainty Example (8)

Introduction

This specification theodolite horizontal angle measurement characteristics and calibration methods used JJG414 "theodolite" And the corresponding provisions JJG100 "total station electronic speed measuring instrument" in the regulations. Astronomical azimuth gyroscope measurement and calibration methods of metrological characteristics with reference to the GJB2863-1997 "Gyro North The corresponding provisions of instrument universal norms "in the regulations. Gyroscope calibration specifications

1 Scope

This standard applies to Gyrotheodolite calibration. 2. References This specification refers to the following documents. JJF 1071-2010 National Calibration Specifications writing rules GB/T 17159-2009 Geodetic term GB/T 17943-2000 geodetic astronomy For dated references, only the dated edition applies to this specification; undated references, The latest version (including any amendments) applies to this specification.

3 terminology and units of measurement

3.1 astronomical azimuth astronomicazimuth Gravity line through a point at the intersection of the geoid to astronomical meridian plane through the point of intersection of the tangents and gravity over another Angle at the intersection point of the gravity line geoid surface consisting of a plane. (GB/T 17159-2009) 3.2 Instrument constant instrumentconstant Gyrotheodolite axis gyro stable position on the meridional surface and the ground line of intersection of the angle between the true meridian. 3.3 sling zero tapezero When the gyro sensitive unit does not start swinging freely equilibrium position.

4 Overview

Gyroscope is a kind of theodolite (optical theodolite, electronic theodolite or total station, hereinafter referred to as the latitude and longitude Instrument) and gyroscope combined into one for the ground directional edge precision directional azimuth measuring instruments. It uses the gyroscope Fixed axis and the precession of the two characteristic instrument, under the action of rotation of the earth, to get the station to any destination point true north Azimuth. It mainly consists of a theodolite, a gyroscope, connecting means and power supply. Gyroscope is mainly used in directional measurement mines, underground, tunnels, forests and other areas.

5 Metrological characteristics

5.1 degrees vertical axis and the horizontal axis collimation 5.2 degree horizontal and vertical axis vertical 5.3 telescope focusing operation error 5.4 pairs in the alignment error One measuring 5.5 standard deviation in the horizontal direction 5.6 Instrument Constant ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1350-2012_English be delivered?

Answer: Upon your order, we will start to translate JJF 1350-2012_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 1350-2012_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1350-2012_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+ countries

Question 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 1350-2012?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJF 1350-2012 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.