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JJF 1776-2019 English PDF

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JJF 1776-2019: Program of Pattern Evaluation of Inductive Loop Speed-Measuring Device
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Standard similar to JJF 1776-2019

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Basic data

Standard ID JJF 1776-2019 (JJF1776-2019)
Description (Translated English) Program of Pattern Evaluation of Inductive Loop Speed-Measuring Device
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A53
Classification of International Standard 17.160
Word Count Estimation 27,264
Date of Issue 2019
Date of Implementation 2020-03-31
Issuing agency(ies) State Administration for Market Regulation

JJF 1776-2019: Program of Pattern Evaluation of Inductive Loop Speed-Measuring Device

---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.
(Outline of Type Evaluation of Motor Vehicle Ground Sensing Coil Speed Measurement System) National Measurement Technical Specification of the People's Republic of China Motor vehicle ground sensing coil speed measuring system Type evaluation outline Published on December 31,.2019 2020-03-31 Implementation Issued by the State Administration of Market Supervision and Administration Motor vehicle ground sensing coil speed measuring system Type evaluation outline Centralized unit. National Technical Committee for Vibration Impact Speed Measurement Main drafting unit. China Academy of Metrology Guangdong Academy of Metrology Participated in the drafting unit. Zhejiang Institute of Metrology Jiangsu Academy of Metrology Liaoning Institute of Metrology This outline entrusts the National Vibration Impact Speed Measurement Technical Committee to explain The main drafters of this outline. Sun Qiao (Chinese Academy of Metrology) Du Lei (Chinese Academy of Metrology) Cai Changqing (Chinese Academy of Metrology) Fang Qiang (Guangdong Institute of Metrology) Participating drafters. Yan Jin (Zhejiang Institute of Metrology) Lin Zhongyang (Jiangsu Institute of Metrology) Gao Kuihe (Liaoning Institute of Metrology)

table of Contents

Introduction (Ⅲ) 1 Scope (1) 2 References (1) 3 Terminology (2) 3.1 Ground sense coil (2) 3.2 Vehicle detector (2) 3.3 Motor vehicle ground sensing coil speed measuring system (2) 3.4 Simulation Verification Device of Motor Vehicle Ground Sensing Coil Speed Measurement System (2) 3.5 Simulated speed error (2) 4 Overview (2) 5 Legal management requirements (3) 5.1 Unit of measurement (3) 5.2 External structure (3) 5.3 Logo (3) 5.4 Software (3) 6 Measurement requirements (3) 6.1 Speed measurement range (3) 6.2 Simulated speed error (3) 6.3 On-site speed measurement error (3) 7 General technical requirements (3) 7.1 Appearance, structure and functionality (3) 7.2 Environmental adaptability (4) 7.3 Adaptability of power supply voltage (4) 7.4 Electromagnetic immunity (4) 7.5 Electrical safety (5) 8 Type evaluation items (5) 9 Provide the number of prototypes and how to use them (7) 9.1 Number of prototypes provided (7) 9.2 How to use the prototype (7) 10 Test methods and conditions of test items, data processing and qualification criteria (7) 10.1 Appearance, structure and functionality (7) 10.2 Speed measuring range (7) 10.3 Simulated speed error (8) 10.4 On-site speed measurement error (8) 10.5 Lower operating temperature limit (9) 10.6 Upper working temperature limit (9) 10.7 Alternating Damp Heat Test (10) 10.8 Insulation resistance (10) 10.9 Pressure test (10) 10.10 Grounding resistance (11) 10.11 Power supply voltage adaptability (11) 10.12 Electrostatic discharge immunity test (12) 10.13 Electrical fast transient burst immunity test (12) 10.14 Surge immunity test (12) 10.15 Conducted disturbance immunity test (13) 10.16 Voltage sag and short-term interruption immunity test (13) 10.17 Radio frequency electromagnetic field radiation immunity test (14) 10.18 Measurement performance test after electromagnetic compatibility test (14) 10.19 Vibration test (15) 10.20 Impact test (15) 10.21 Measurement performance test after mechanical environmental test (15) 10.22 Sand and dust test (16) 10.23 Rain test (16) 11 Table of measuring instruments and equipment used in the test project (17) Appendix A Type Evaluation Record Format (19)

Introduction

This outline is based on JJF 1016 "Guidelines for the Compilation of Evaluation Outlines for Measuring Instruments" and JJF 1015 "Types of Measuring Instruments" General Specification for Evaluation", JJF 1001 "General Measurement Terms and Definitions" and JJF 1059.1 "Measurement Uncertainty Evaluation And expression" as the basic norms This outline is published for the first time. Outline of Type Evaluation of Motor Vehicle Ground Sensing Coil Speed Measurement System

1 Scope

This outline is applicable to the ground sensing line of a motor vehicle that is installed on the road of a motor vehicle and uses the ground sensing coil as the vehicle sensing sensor Type evaluation of lap speed measurement system.

2 Reference documents

The outline cited the following documents. JJG1076-2012 Motor vehicle ground sensing coil speed measuring system verification device GB/T 2423.1-2008 Environmental testing for electrical and electronic products Part 2.Test methods Test A. Low temperature GB/T 2423.2-2008 Environmental testing for electrical and electronic products Part 2.Test methods Test B. high temperature GB/T 2423.4-2008 Environmental testing for electrical and electronic products. Part 2.Test method test Db. Alternating damp heat (12h 12h cycle) GB/T 2423.5-1995 Environmental testing for electrical and electronic products. Part 2.Test methods test Ea and Guideline. Impact GB/T 2423.10-2008 Environmental testing for electrical and electronic products. Part 2.Test methods Test Fc. Vibration (sine) GB/T 2423.37-2006 Environmental testing for electrical and electronic products Part 2.Test method test L. Sand and dust test GB/T 2423.38-2008 Environmental testing for electrical and electronic products. Part 2.Test method test R. Water test methods and guidelines GB/T 17626.2-2006 Electromagnetic compatibility test and measurement technology Electrostatic discharge immunity test GB/T 17626.3-2006 Electromagnetic Compatibility Test and Measurement Technology Radio Frequency Electromagnetic Field Radiation Immunity Test GB/T 17626.4-2008 Electromagnetic compatibility test and measurement technology Electrical fast transient pulse group immunity test GB/T 17626.5-2008 EMC test and measurement technology surge (shock) immunity test GB/T 17626.6-2008 Electromagnetic compatibility test and measurement technology RF field induced conducted disturbance immunity Disturbance GB/T 17626.11-2008 Electromagnetic compatibility test and measurement technology Voltage sag, short interruption and voltage Varying immunity test GB/T 21255-2007 Motor vehicle speedometer For dated reference documents, only the dated version applies to this outline; for those without date references The latest version (including all amendments) is applicable to this outline.

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