GB/T 35680-2017 English PDF

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GB/T 35680-2017: Measuring method for electromagnetic parameters of liquid materials at microwave frequencies using an open-ended coaxial probe
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 35680-2017	359	Add to Cart	4 days	Measuring method for electromagnetic parameters of liquid materials at microwave frequencies using an open-ended coaxial probe	Valid

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Basic data

Standard ID: GB/T 35680-2017 (GB/T35680-2017)
Description (Translated English): Measuring method for electromagnetic parameters of liquid materials at microwave frequencies using an open-ended coaxial probe
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N05
Classification of International Standard: 17.240
Word Count Estimation: 18,129
Date of Issue: 2017-12-29
Date of Implementation: 2018-07-01
Regulation (derived from): National Standards Bulletin 2017 No. 32
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 35680-2017: Measuring method for electromagnetic parameters of liquid materials at microwave frequencies using an open-ended coaxial probe

---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.
Measuring method for electromagnetic parameters of liquid materials at microwave frequencies using an open-ended coaxial probe ICS 17.240 N05 National Standards of People's Republic of China The microwave band of liquid material uses an open coaxial probe Electromagnetic parameters measurement method 2017-12-29 Posted 2018-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 test sample requirements 1 5 General requirements 2 6 electromagnetic parameters measurement 3 Appendix A (informative) coaxial probe parameters 5 Appendix B (informative) single-port probe terminal calibration principle 6 Appendix C (Informative) Electromagnetic parameters inversion method 9 Appendix D (informative) test results Example 11 References 14

Foreword

This standard was drafted in accordance with the rules given GB/T 1.1-2009. This standard proposed by the China Electrical Equipment Industry Association. This standard by the National Electromagnetic shielding materials Standardization Technical Committee (SAC/TC323) centralized. This standard was drafted unit. China Electronics Technology Group Corporation forty-first Institute, Shanghai Institute of Measurement and Testing Technology, Security High-Tech Electromagnetic Safety Technology (Beijing) Co., Ltd., Suzhou City, Quality and Technical Supervision Comprehensive Inspection and Testing Center, Beijing University of Posts and Telecommunications, Beijing Institute of Technology, Shanghai Jiaotong University. The main drafters of this standard. Nifu Shun, Guo Rongbin, Wang Yahai, Zhao Rui, Hu Dahai, Cai Qing, Lu Fumin, Zhu Andong, Liu Bin, Huang Xin, Liu Xiaoming, Hu Weidong, Lu Xin, Lai Lei, Chen Chaocha, Zuo Jiansheng, Sang Yu, Miu Miu, Zhu Jiangang, Jin Ronghong. The microwave band of liquid material uses an open coaxial probe Electromagnetic parameters measurement method

1 Scope

This standard specifies the method of measuring the electromagnetic parameters of liquid materials using an open coaxial probe in the microwave frequency band. This standard applies to the range of 100MHz ~ 50GHz coaxial probe using open coaxial, isotropic liquid materials Relative permittivity and loss tangent detection.

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 4365 Electrotechnical terminology Electromagnetic compatibility

3 Terms and definitions

GB/T 4365 defined and the following terms and definitions apply to this document. 3.1 Complex dielectric constant complexrelativepermittivity Can be calculated by equation (1). ε = ε0 · εr = ε0 (ε'-jε ") (1) In the formula. ε0 --- vacuum dielectric constant, equal to 8.85 × 10-12F/m; εr --- complex relative permittivity; ε '--- the real part of the relative permittivity; ε "--- the imaginary part of relative permittivity. NOTE The complex dielectric constant referred to in this standard actually refers to the relative dielectric constant, and the relative permittivity of the real part of ε 'and dielectric loss tangent tanδε = ε "/ ε 'characterization.

4 test sample requirements

Test sample is uniform, isotropic liquid material, placed in a glass container, the sample dose should meet the type (2), type (3). S ≧ 10S1 (2) h≥80mm (3) In the formula. S --- test sample surface area of the test surface, in square meters (m2); S1 --- probe terminal surface area, in square meters (m2); h --- test sample depth. Samples without impurities, before the test should ensure that the liquid even without bubbles. ......

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