GB/T 34885-2017 English PDF

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GB/T 34885-2017: Non-destructive testing -- Electromagnetic ultrasonic testing -- General principles
Status: Valid

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Basic data

Standard ID: GB/T 34885-2017 (GB/T34885-2017)
Description (Translated English): Non-destructive testing -- Electromagnetic ultrasonic testing -- General principles
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J04
Classification of International Standard: 19.100
Word Count Estimation: 21,239
Date of Issue: 2017-11-01
Date of Implementation: 2018-05-01
Regulation (derived from): National Standard Announcement 2017 No. 29
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 34885-2017: Non-destructive testing -- Electromagnetic ultrasonic testing -- General principles

---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.
Non-destructive testing-Electromagnetic ultrasonic testing-General principles ICS 19.100 J04 National Standards of People's Republic of China Nondestructive testing Electromagnetic ultrasonic testing General Posted.2017-11-01 2018-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Foreword Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Method Summary 2 4.1 Detection principle 2 4.2 advantages and features 2 4.3 limitations 3 4.4 Application 3 4.5 Influencing factors 3 5 safety requirements 3 6 staff requirements 4 7 common test procedures 4 8 testing equipment and equipment 4 8.1 detection system 4 8.2 Electromagnetic Acoustic Probe 4 8.3 Electromagnetic ultrasound instrument 6 8.4 test block 8 8.5 Operating aids 8 8.6 Testing Equipment Maintenance and Calibration 8 9 test procedures 8 9.1 Preparation before testing 8 9.2 Instrument Debug 9 9.3 Detection System Calibration 9 9.4 test system review 9 9.5 In-service equipment testing 9 9.6 Manufacturing Process Testing 10 10 test results evaluation and processing 10 10.1 Thickness reading directly read the thickness value of the instrument 10 10.2 Flaw detection should be based on the test object, purpose or user requirements of the corresponding standards for the evaluation of the results 10 10.3 Unacceptable signs of discovery are dealt with as agreed by both parties to the contract 10 11 Test Record and Report 10 11.1 Test Record 10 11.2 Test Report 10 Appendix A (informative) electromagnetic sound transducer coil common structure 11 Appendix B (Normative) Pulse echo electromagnetic thickness measurement method 12 Appendix C (Normative) Magnetic ultrasound oblique incident pulse echo detection method 15

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard by the National Standardization Technical Committee nondestructive testing (SAC/TC56) and focal point. This standard drafting unit. China Special Equipment Inspection and Research Institute, Huazhong University of Science and Technology, North University, Wuhan Branch of Innovation and Technology Co., Ltd. Company, Shuo Tak (Beijing) Technology Co., Ltd., Edson (Xiamen) Electronics Co., Ltd. The main drafters of this standard. Shen Gongtian, Zheng Yang, Hu Bin, Wu Xinjun, Zhou Jin Festival, Prince, Xiang Yong, Wang Baoxuan, Shen Yongna, Zhang Zongjian, Tan Jidong, Li Sujun, Lin Junming, Ding Xu. Nondestructive testing Electromagnetic ultrasonic testing General

1 Scope

This standard specifies the general principles of electromagnetic and ultrasonic testing of materials and components. This standard applies to electromagnetic ultrasound can produce the material. This standard provides guidance on the development of electromagnetic ultrasonic testing standards or testing procedures for products, equipment and materials.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 9445 non-destructive testing personnel qualification and certification GB/T 11344 nondestructive testing contact ultrasonic pulse echo thickness measurement method GB/T 12604.1 Non-destructive testing - Ultrasonic testing GB/T 23905 Nondestructive testing Ultrasonic testing block JB/T 9214 non-destructive testing A pulse reflection ultrasonic testing system performance test methods

3 Terms and definitions

GB/T 12604.1 defined and the following terms and definitions apply to this document. 3.1 Electromagnetic sound transducer electromagneticacoustictransducer; EMAT In the magnetic field for energy and sound energy conversion between the electromagnetic device. 3.2 Electromagnetic ultrasonic testing; Electromagneticultrasonictesting; EMUT Electromagnetic transducer as an ultrasonic excitation, the core device to receive ultrasonic testing. 3.3 Electromagnetic guided wave ultrasonicultrasonicguidedwavetesting Electromagnetic sound transducer as the ultrasonic guided wave excitation, receive the core components of the ultrasonic guided wave detection. 3.4 Coil coil Electromagnetic sound transducer used to radiate and receive electromagnetic wave components. 3.5 Pancake coil pancakecoil Spiral coil spiralcoil Circling at different pitches of equal radius forms a loop with a solid multi-turn circular coil. 3.6 Annular coil annularcoil Circling at different pitches of equal radius form a loop with a hollow multi-turn circular coil. ......

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