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GB/T 32522-2016 English PDF

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US$639.00 · In stock
Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 32522-2016: Acoustics -- Electroacoustic characteristics and measurements of piezoelectric spherically focusing ultrasonic transducers
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 32522-2016	639	Add to Cart	6 days	Acoustics -- Electroacoustic characteristics and measurements of piezoelectric spherically focusing ultrasonic transducers	Valid

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Basic data

Standard ID: GB/T 32522-2016 (GB/T32522-2016)
Description (Translated English): Acoustics -- Electroacoustic characteristics and measurements of piezoelectric spherically focusing ultrasonic transducers
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A59
Classification of International Standard: 17.140
Word Count Estimation: 32,333
Date of Issue: 2016-02-24
Date of Implementation: 2016-09-01
Quoted Standard: GB/T 7966-2009
Regulation (derived from): National Standard Announcement No
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
Summary: This standard specifies the electro-acoustic characteristics and measurement methods of a spherical spherical focused ultrasound transducer (hereinafter referred to as a spherical focused ultrasonic transducer) made of a spherical crown-shaped piezoelectric material. This standard applies to the operating frequency range of 1.0MHz ~ 15MHz. This standard does not apply to focusing transducers that focus transducer arrays and acoustic lenses. Note: 1.0MHz the following can refer to this standard.

GB/T 32522-2016: Acoustics -- Electroacoustic characteristics and measurements of piezoelectric spherically focusing ultrasonic transducers

---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.
Acoustics.Electroacoustic characteristics and measurements of piezoelectric spherically focused ultrasonic transducers ICS 17.140 A59 National Standards of People's Republic of China Acoustic Piezoelectric Focused Ultrasonic Transducer Electro - acoustic characteristics and their measurement Acoustics-Electroacousticcharacteristics andmeasurementsof 2016-02-24 released 2016-09-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released Directory Preface III 1 Scope 1 2 normative reference document 1 3 Terms and definitions 1 4 symbol 3 5 General 4 6 Measurement system requirements 5 7 Focus sound field parameter measurement 6 Radiation Conductivity Measurement 9 spherical focusing transducer to send current (voltage) response and receiver sensitivity measurement 8 Measurement of electroacoustic efficiency Measurement of the input impedance (admittance) of the transducer Measurement Uncertainty 10 Appendix A (normative) The average reflection coefficient of the spherical focusing sound beam incident on the water-stainless steel plane interface and the poly Coke (half) angle of the relationship 11 Appendix B (Normative Appendix) Spherical Correction Transducer The self-calibrated diffraction correction factor in the free field with no attenuation medium The numerical table of the Gsf (R/λ, β) function Appendix C (informative) Diffraction correction coefficient of spherical focusing transducers in free-free medium free-range calibration Gsf The calculation of 17 Appendix V (informative) Sound velocity and attenuation coefficient of water 21 Appendix E (informative) Guidelines for reciprocal calibration of spherical focusing transducers 22 Appendix F (informative) The relationship between the electro-acoustic parameters of the transducer and the applicability of the electro-acoustic parameters 24 Appendix G (informative) Measurement Record Table 26 Reference 28

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by the Chinese Academy of Sciences. This standard is under the jurisdiction of the National Acoustics Standardization Technical Committee (SAC/TC17). The standard drafting unit. Shanghai Institute of Ultrasound Medicine, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Institute of Acoustics, Chinese Academy of Sciences, China Institute of Metrology, China Shipbuilding Industry Corporation July 11 Research Institute, Jiangsu Province, Medical Device Testing Institute, Shanghai Food and Drugs Supervisory Authority Certification and Evaluation Center, Kunshan Risheng Electronics Co., Ltd., Wuxi Haiying Electronic Medical System Co., Ltd., Ultrasonic Medical Industry Research Center. The main drafters of this standard. Shou Wende, Yu Lili, Hu Bing, Duan Shimei, Zhu Houqing, Yang Ping, Wang Yuebing, Hu Jimin, Bu Shuzhong, Chen Yi, Geng Xiaoming, Zeng Deping, Xing Guangzhen, Shen Eu. Acoustic Piezoelectric Focused Ultrasonic Transducer Electro - acoustic characteristics and their measurement

1 Scope

This standard specifies a ball-shaped piezoelectric material made of spherical spherical ultrasonic transducer (hereinafter referred to as spherical focus ultrasonic transducer) Electro - acoustic characteristics and their measurement methods. This standard applies to the operating frequency range of 1.0MHz ~ 15MHz. This standard does not apply to focus converters for focusing transducer arrays and acoustic lenses. Note. 1.0MHz below can refer to this standard.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. Acoustics - Measurement of radiated power by ultrasonic power and its performance requirements GB/T

3 terms and definitions

The following terms and definitions apply to this document. 3.1 Free field free-field Uniformly isotropic media, the boundary can not affect the sound field. [GB/T 7966-2009, definition 3.2] 3.2 Radiation conductance Gr The ratio of the acoustic output power to the RMS (RMS) of the transducer input voltage. Used to characterize the electro-acoustic conversion characteristics of the transducer. Note 1. The unit is Siemens (S). Note 2. The frequency of the signal voltage (or current) is indicated. [GB/T 7966-2009, definition 3.8] 3.3 Spherical Focus Transducer Transmit Voltage (Current) Response focusedFItransmittingvoltage (current) responsefor sphericalyfocusingtransducer At a given frequency, the ratio of the emitted sound pressure to the input voltage (current) on the effective radiating surface of the spherical focusing transducer in the free field. Note. The unit is per Pa (Pa/V), Pa per (Pa/A). ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 32522-2016_English be delivered?

Answer: Upon your order, we will start to translate GB/T 32522-2016_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 6 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 32522-2016_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 32522-2016_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 Sales@ChineseStandard.net. 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.