HOME   Cart(4)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189759 (19 Oct 2025)

JJF 1871-2020 English PDF

US$329.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1871-2020: Calibration Specification for Electromagnetic Sensors of Rotational Speed
Status: Valid
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJF 1871-2020English329 Add to Cart 3 days [Need to translate] Calibration Specification for Electromagnetic Sensors of Rotational Speed Valid JJF 1871-2020

PDF similar to JJF 1871-2020


Standard similar to JJF 1871-2020

JJF 1943   GB/T 36126   GB/T 1885   JJF 1867   JJF 1870   JJF 1866   

Basic data

Standard ID JJF 1871-2020 (JJF1871-2020)
Description (Translated English) Calibration Specification for Electromagnetic Sensors of Rotational Speed
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A53
Word Count Estimation 14,193
Date of Issue 2020-09-11
Date of Implementation 2021-03-11
Regulation (derived from) Announcement No. 40 (2020) of the State Administration for Market Regulation
Issuing agency(ies) State Administration for Market Regulation

JJF 1871-2020: Calibration Specification for Electromagnetic Sensors of Rotational Speed

---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 Electromagnetic Sensors of Rotational Speed National Metrology Technical Specifications of the People's Republic of China Calibration specification for magnetoelectric speed sensor 2020-09-11 released 2021-03-11 implementation Issued by the State Administration for Market Regulation Calibration specification for magnetoelectric speed sensor Focal point. National Technical Committee of Vibration and Shock Speed Measurement Main drafting unit. China Institute of Metrology Xi'an Thermal Power Research Institute Co., Ltd. Participated in the drafting. Jiangxi Institute of Metrology and Testing Beijing Institute of Metrology and Testing Beijing Aerospace Metrology and Testing Technology Institute Beijing Yimate Technology Co., Ltd. This specification entrusts the National Technical Committee of Vibration and Shock Speed Measurement to be responsible for the interpretation The main drafters of this specification. Sun Qiao (China Institute of Metrology) Bai Jie (China Institute of Metrology) Qu Lili (Xi'an Thermal Power Research Institute Co., Ltd.) Participating drafters. Yang Qiqi (Jiangxi Institute of Metrology and Testing) Yu Baoliang (Beijing Institute of Metrology and Testing Science) Liu Hui (Beijing Institute of Aerospace Metrology and Testing Technology) Chen Jinfa (Beijing Immet Technology Co., Ltd.)

table of Contents

Introduction (Ⅱ) 1 scope (1) 2 Reference documents (1) 3 Term (1) 3.1 Speed sensor (1) 3.2 Magnetoelectric speed sensor (1) 3.3 Speed measuring gear (1) 4 Overview (1) 5 Measurement characteristics (1) 6 Calibration conditions (2) 6.1 Environmental conditions (2) 6.2 Measurement standards and other equipment (2) 7 Calibration items and calibration methods (2) 7.1 Calibration items (2) 7.2 Calibration method (2) 8 Calibration result expression (4) 9 Recalibration interval (4) Appendix A Calibration Record Format of Magnetoelectric Speed Sensor (5) Appendix B Contents of Calibration Certificate for Magnetoelectric Speed Sensor (6) Appendix C Evaluation of Uncertainty of Measurement Results of Rotational Speed Indication Error (7)

Introduction

This specification is based on JJF 1071-2010 "Rules for Compiling National Metrology and Calibration Specifications" JJF 1059.1-2012 "Evaluation and Expression of Measurement Uncertainty" and other metrological technical specifications were compiled. This specification mainly refers to JJG105 "speed meter", JJG1134-2017 "speed measuring instrument", JJG326 "speed standard device", JJF 1094-2002 "Measurement Instrument Characteristic Evaluation" and other metrological technical regulations are the technical guarantee for the traceability of the rotational speed value of the magnetoelectric speed sensor. This specification is released for the first time. Calibration specification for magnetoelectric speed sensor

1 Scope

This specification is applicable to the rotation of the measuring range not less than (1~10000)r/min using the working principle of electromagnetic induction. Speed sensor calibration.

2 Reference documents

This specification refers to the following documents. JJG105 Tachometer JJG326 Speed standard device JJG1134-2017 Speed measuring instrument For dated reference documents, only the dated version applies to this specification; for undated references The latest version (including all amendments) is applicable to this specification.

3 term

3.1 Speed sensor A sensor that measures the rotation speed of a rotating object. 3.2 Magnetoelectric speed sensor Rotational speed sensor using electromagnetic induction working principle. 3.3 Speed measuring gear The involute ring gear made of metal material with high magnetic permeability is installed on the rotating shaft for the speed sensor to obtain the pulse signal.

4 overview

According to the working principle of electromagnetic induction, the magnetoelectric speed sensor mainly includes the following types. variable reluctance speed sensor Speed sensor, eddy current speed sensor, Hall speed sensor, etc. Active or passive magnetoelectric speed sensor, its measurement The measurement methods are all non-contact direct measurement, and the sensing object is a quilt with convex or concave magnetic materials and magnetic materials. Measure the object. As the measured object rotates, the output of the magnetoelectric speed sensor corresponds to the rotation speed and the number of gear teeth Pulse signal, through the counter to display the measured speed value.

5 Metrological characteristics

The measurement characteristics of the magnetoelectric speed sensor are shown in Table 1.

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1871-2020_English be delivered?

Answer: Upon your order, we will start to translate JJF 1871-2020_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 1871-2020_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1871-2020_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 [email protected]. 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.