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JJF 1452-2014 English PDF

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JJF 1452-2014: Program of Pattern Evaluation of Contact Anemorumbometer
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Basic data

Standard ID JJF 1452-2014 (JJF1452-2014)
Description (Translated English) Program of Pattern Evaluation of Contact Anemorumbometer
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A53
Classification of International Standard 17.100
Word Count Estimation 25,225
Date of Issue 2/14/2014
Date of Implementation 5/14/2014
Quoted Standard JJG 613-1989; GB/T 7676.1-1998; GB/T 7676.2-1998; JB/T 9452-1999
Regulation (derived from) ?AQSIQ Announcement 2014 No. 17
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This Standard applies to electrical ground wind instrument (hereinafter referred to as the anemometer) the type evaluation.

JJF 1452-2014: Program of Pattern Evaluation of Contact Anemorumbometer

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Program of Pattern Evaluation of Contact Anemorumbometer People's Republic of China National Metrology Technical Specifications Electrically connected wind instrument type evaluation outline Issued on. 2014-02-14 2014-05-14 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Electrically connected wind instrument type evaluation outline Focal point. the National Technical Committee of pressure measurement Drafted by. China Meteorological Administration meteorological observation center China Baicheng Ordnance Test Center Zhejiang Technical Support Center for Atmospheric Sounding This specification commissioned the National Technical Committee of pressure measurement shall be interpreted The main drafters of this specification. HE Xiao Lei (China Meteorological Administration meteorological observation center) Qijiu Cheng (China Baicheng Ordnance Test Center) Feng Yuan (China Baicheng Ordnance Test Center) Shen Yan Yan (China Baicheng Ordnance Test Center) For He Jun (China Meteorological Administration meteorological observation center) Drafters participate. Luo Chang (Zhejiang atmospheric sounding technical support center)

table of Contents

Introduction (Ⅲ) 1 Scope (1) 2. References (1) 3 Overview (1) 4 legal management requirements (1) 4.1 units of measurement (1) 4.2 The maximum permissible error (1) 4.3 legal metrology marking and identification of measuring instruments (1) 4.4 Test Prototype (2) 5 measurement requirements (2) 5.1 vane angle sensor is not (2) 5.2 anemometer wind speed indication error (2) 5.3 anemometer wind speed measuring range (2) 5.4 Start up wind speed wind cup (2) 6 General Requirements (2) 6.1 Appearance (2) 6.2 Mechanical properties (2) 6.3 self-recording clock (3) 6.4 anemometer wind direction instruction request (3) 6.5 storage temperature (3) 6.6 Rain Test (3) 6.7 Insulation resistance (3) 6.8 adaptive power supply (3) 6.9 dielectric strength (3) 7 type evaluation item list (3) 8 pilot projects test methods and conditions (4) 8.1 vane angle sensor is not (4) 8.2 anemometer wind speed indication error (5) 8.3 anemometer wind speed measuring range (5) 8.4 Start up wind speed wind cup (5) 8.5 Appearance (6) 8.6 Mechanical properties (6) 8.7 self-recording clock (6) 8.8 anemometer wind direction instruction request (7) 8.9 storage temperature (7) 8.10 rain test (8) 8.11 Insulation resistance (8) 8.12 power adaptation (9) 8.13 Dielectric Strength (9) Type 9 Judgment principle results (10) Appendix A electrically connected wind instrument type evaluation Tabular original records (11) Appendix B electrically connected wind instrument wind direction and orientation of correspondence (16) Appendix C electrically connected wind instrument measurement equipment manufacturing license examination prerequisites (17)

Introduction

JJF 1016 "Measuring Instruments type evaluation outline guidelines for the preparation", JJF 1015 "Measuring Instruments type evaluation and type Ratify general specification ", JJF 1246" measurement equipment manufacturing license evaluation general specification ", JJF 1001" universal cytometry Language and Definitions "and JJF 1059" Evaluation and Expression of Uncertainty in Measurement "together constitute the fundamental norm-setting series specification. The specification for the specific test methods and technical indicators refinement, additions and modifications. This specification is the first release. Electrically connected wind instrument type evaluation outline

1 Scope

This type of evaluation framework applies to electrical ground wind instrument (hereinafter referred to as anemometer) the type evaluation. 2. References JJG613-1989 electrically connected aerovane GB/T 7676.1-1998 Direct acting indicating analogue electrical measuring instruments and their accessories definitions and general requirements GB/T 7676.2-1998 Direct acting indicating analogue electrical measuring instruments and their accessories ammeter and voltmeter special requirements JB/T 9452-1999 meteorological instruments with a mechanical self-recording machine rotation clock bell Those documents by reference the terms of this syllabus constitute provisions of this outline. For dated references, All subsequent amendments (not including errata content) or revisions do not apply in this outline, however, encourage the All parties that this outline agreement to use the latest versions of these documents. For undated reference documents Member, the latest versions apply to this outline.

3 Overview

Anemometer the instrument ground weather stations for measuring surface wind direction wind speed. Mainly by the sensors, recorders, means It shows part of the like. Wind direction sensor includes a wind vane and bearing block converter. Vane on chassis fitted with eight conductive Block, when the vane is rotated, driven by a set of electrodes on the conductive slide sliding block, connected to the conductive block indicating connected Lights in different combinations to achieve 16 orientation display. Wind speed sensors mainly by the wind cups, wind generators and electrical coupling device components. The rotational speed of the wind cup made by Winds The motor is converted into a current signal, transmitted to the instantaneous wind speed indicator indication. Blowing wind flow per cup reaches 200m wind drive power output device connected to a pulse signal. According to the number of pulses of a period of time recorder records The time period can be calculated airflow wind away, and then calculate the average wind speed in the time period.

4 legal management requirements

4.1 units of measurement Anemometer should be "m/s" as the wind speed units. 4.2 The maximum permissible error Anemometer wind speed maximum permissible error of ± (0.5m/s 0.05v). Note. v standard wind speed, m/s. 4.3 legal metrology marking and measuring instruments logo 4.3.1 legal metrology signs generally include the following --- Measurement equipment manufacturing license logo and number (test prototype should stay out of the corresponding position);

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