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JJG 1185-2022 English PDF

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JJG 1185-2022: Standard Ultrasonic Sources for Watt-level
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Basic data

Standard ID JJG 1185-2022 (JJG1185-2022)
Description (Translated English) Standard Ultrasonic Sources for Watt-level
Sector / Industry Metrology & Measurement Industry Standard
Word Count Estimation 16,143
Date of Issue 2022-04-29
Date of Implementation 2022-10-29
Issuing agency(ies) State Administration for Market Regulation

JJG 1185-2022: Standard Ultrasonic Sources for Watt-level

---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.
Standard Ultrasonic Sources for Watt-level National Metrology Verification Regulations of the People's Republic of China Watt-Level Standard Ultrasonic Power Sources Released on 2022-04-29 Implementation on 2022-10-29 Released by the State Administration for Market Regulation Verification rules for watt-level standard ultrasonic power source Responsible unit. National Acoustic Metrology Technical Committee Main drafting unit. Guangdong Institute of Metrology Shaanxi Normal University China Institute of Metrology Participating in the drafting unit. Henan Institute of Metrology China Institute of Testing Technology This regulation entrusts the National Acoustic Metrology Technical Committee to be responsible for interpretation The main drafters of this regulation. Chen Shenli (Guangdong Institute of Metrology) Li Minyi (Guangdong Institute of Metrology) Wu Shengju (Shaanxi Normal University) Xing Guangzhen (National Institute of Metrology) Participating drafters. Guo Guangjian (Guangdong Institute of Metrology) Zhu Weimin (Henan Institute of Metrology) Yao Xiaobing (China Academy of Testing Technology)

Table of contents

Introduction (Ⅱ) 1 Scope(1) 2 References(1) 3 Terms and units of measurement(1) 3.1 Units of measurement(1) 3.2 Terms and Definitions (1) 4 Overview(2) 5 Metrological performance requirements (2) 5.1 Insulation resistance(2) 5.2 Operating frequency(2) 5.3 Relative indication error of ultrasonic output power (2) 5.4 Linearity deviation(2) 6 General technical requirements (2) 6.1 Signs(2) 6.2 Appearance and power supply(2) 7 Measuring Instrument Control(3) 7.1 Test conditions (3) 7.2 Verification items (4) 7.3 Verification method (4) 7.4 Processing of verification results (6) 7.5 Verification cycle (6) Appendix A Format of the inner page of the verification certificate (7) Appendix B Format of the inner page of the test result notification (8) Appendix C Example of Assessment of Measurement Uncertainty (9)

Introduction

JJF1002 "Rules for Writing National Metrology Verification Regulations", JJF1001 "General Metrology Terms and Definitions", JJF1059.1 "Assessment and Expression of Measurement Uncertainty" together constitute the basic series supporting the formulation of this regulation document. This regulation is published for the first time. Verification rules for watt-level standard ultrasonic power source

1 Scope

This regulation is applicable to the frequency range of (0.5~10)MHz, ultrasonic sound power in the range of (0.5~20)W The first verification, follow-up verification and in-use inspection of the watt-level standard ultrasonic power source.

2 References

This procedure references the following documents. JJF1001 General Metrology Terms and Definitions JJF1034-2020 Acoustic Metrology Terms and Definitions JJF1059.1 Evaluation and Expression of Measurement Uncertainty GB/T 3102.7 Acoustic quantities and units GB/T 3947-1996 Acoustic Terminology GB/T 7966-2009 Acoustic ultrasonic power measurement radiation force balance method and performance requirements IEC 61161.2013 Ultrasonic power measurement radiation force balance method and performance requirements (Ultrasonics- For dated references, only the dated version applies to this regulation; for undated references document, its latest version (including all amendments) applies to this regulation.

3 Terminology and units of measurement

3.1 Unit of measurement This regulation adopts the quantities and units specified in GB/T 3102.7. 3.2 Terms and Definitions The following terms and definitions defined in JJF1001, JJF1034 and GB/T 3947-1996 are applicable to this regulation. Time-averaged ultrasound emitted by an ultrasonic transducer into an approximately free field under specified conditions and in a specified medium power. Note. 1 Ultrasound output power is in watts (W). 2 The specified medium is preferably water. 3.2.2 ultrasonic transducer ultrasonictransducer Within the ultrasonic frequency range, a device that can convert electrical energy into mechanical energy or mechanical energy into electrical energy. 3.2.3 radiation conductance radiationconductance The ratio of the acoustic output power of a transducer to the square of the effective value (RMS) of its input voltage. for the characterization of ultrasonic

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