JJG 1076-2012 English PDF

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JJG 1076-2012: Verification Regulation of Verification Equipment for Traffic Loop-based Speed Meters
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Similar standards

GB/T 3222.1   JJF 1234   JJF 1396   JJF 1076   JJG 1074   JJG 1071   

Basic data

Standard ID: JJG 1076-2012 (JJG1076-2012)
Description (Translated English): Verification Regulation of Verification Equipment for Traffic Loop-based Speed Meters
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A57
Classification of International Standard: 17.080
Word Count Estimation: 16,123
Quoted Standard: JJG 180-2002; JJG 527-2007
Regulation (derived from): AQSIQ Announcement No. 35 of 2012
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies by changing the sense coil inductance principle vehicle speed sense coil system verification device initial verification, testing and use of follow-up checks.

JJG 1076-2012: Verification Regulation of Verification Equipment for Traffic Loop-based Speed Meters

---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.
Verification Regulation of Verification Equipment for Traffic Loop-based Speed Meters State verification procedures People's Republic of China Vehicle speed sense coil system verification equipment Issued on. 2012-03-05 2012-06-05 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Vehicle speed sense coil system verification Means test procedures eedMeters Focal point. the National Technical Committee of shock and vibration measurement speed Main drafting unit. Jiangsu Province Institute of Metrology Beijing Institute of Metrology detection Participated in the drafting unit. Fujian Institute of Measurement Science and Technology Xi'an Institute of Measurement Heilongjiang Provincial Academy of verification test This procedure entrust national shock and vibration speed measurement technology committee responsible for the interpretation The main drafters of this procedure. Lin Zhongyang (Jiangsu Province Institute of Metrology) Zhu Junjie (Beijing Institute of Metrology detection) Drafters participate. Jian-Hui Lin (Fujian Institute of Measurement Science Technology) Zang Xiaoxia (Jiangsu Province Institute of Metrology) Zhang Lijun (Xi'an Institute of Measurement) Wu Changshun (Heilongjiang Provincial Academy of verification test) Chen Li (Jiangsu Province Institute of Metrology)

table of Contents

Introduction (Ⅱ) 1 Scope (1) 2. References (1) 3 terminology and units of measurement (1) Trigger 3.1 (1) 3.2 trigger signal (1) Interval 3.3 (1) Sense of distance between the coils to 3.4 (1) 3.5 simulation speed (1) 4 Overview (1) 5 metering performance requirements (1) 5.1 1s frequency stability (1) 5.2 The maximum permissible time interval error (2) 5.3 Analog speed range (2) 5.4 Simulation Speed The maximum permissible error (2) 6 General Requirements (2) 6.1 Appearance (2) 6.2 Other (2) 7 control of measuring instruments (2) 7.1 verification Conditions (2) 7.2 test items and test with appliances (2) 7.3 Verification Methods (3) 7.4 test results processing (4) 7.5 test cycle (4) Appendix A sense coil type speedometer calibration device test records (recommended) format (5) Appendix B test certificate page format (7) Appendix C test results in the notice page format (8) Distance, speed and time interval between the coil table in Appendix D (9)

Introduction

This procedure based on JJF1002-2010 "national verification procedures write rules", JJF1001-1998 "Tong Metering terms and definitions ", JJF1059-1999" Evaluation and Expression of Uncertainty in Measurement ", JJF1094-2002 "Measuring instrument characteristics assessment" and other basic family of specifications developed. Vehicle speed sense coil system verification test procedures means

1 Scope

The order applies to the sense by changing the vehicle speed and the sense coil system verification device inductance coil principle (Hereinafter referred to as "verification unit") the initial verification, subsequent verification and the use of checks. 2. References This procedure references the following documents. JJG 180-2002 electronic measuring instruments within the quartz oscillator JJG 527-2007 vehicle speed automatic monitoring system For dated references, only the dated edition applies to this procedure; undated reference documents Member, the latest version (including all repair orders) applies to this procedure.

3 terminology and units of measurement

3.1 Trigger trigger By a wire wound or hollow core toroidal coil for sensing and sense coil excitation subject. 3.2 trigger triggersignal Verification issued by the host device, the signal generated by the flip-flop, in order to simulate the vehicle speed. 3.3 Interval timeinterval The time between two trigger signals. Distancebetweencoils 3.4 distance between the sense coil Coil mounted on the same lane, according to the direction of travel of the vehicle, adjacent edges of two coils (i.e., vehicle The vertical distance to go through the edge) between. 3.5 analog speed simulationspeed When the distance between adjacent coils being determined by measuring the time interval between their respective trigger signal derived ratio.

4 Overview

Test device to simulate the speed and distance needed to set a given sense coil between the respective trigger signal derived Intervals. The principle of electromagnetic induction trigger signal is transmitted to the sense coil speedometer, thus simulating the bus Traveling speed vehicle. Verification by the host device and flip-flops for more than two and a sense coil vehicle speed automatic monitoring System simulation test speed error.

5 metering performance requirements

5.1 1s frequency stability ......

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