GB/T 30820-2014 English PDF

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GB/T 30820-2014: Non-destructive testing -- Practice for determining the impedance of absolute eddy-current probes
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 30820-2014	259	Add to Cart	3 days	Non-destructive testing -- Practice for determining the impedance of absolute eddy-current probes	Valid

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Basic data

Standard ID: GB/T 30820-2014 (GB/T30820-2014)
Description (Translated English): Non-destructive testing -- Practice for determining the impedance of absolute eddy-current probes
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J04
Classification of International Standard: 19.100
Word Count Estimation: 11,181
Date of Issue: 6/24/2014
Date of Implementation: 12/31/2014
Quoted Standard: GB/T 12604.6
Regulation (derived from): National Standards Bulletin No. 14 of 2014
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 method for determination of absolute eddy current probe detection coil impedance. This standard applies to the bridge, air core or ferrite core wound with or without magnetic shielding conductive material flaw detection probe.

GB/T 30820-2014: Non-destructive testing -- Practice for determining the impedance of absolute eddy-current probes

---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. Practice for determining the impedance of absolute eddy-current probes ICS 19.100 J04 National Standards of People's Republic of China Absolute eddy current NDT probe impedance measurement method Issued on. 2014-06-24 2014-12-31 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard non-destructive testing by the National Standardization Technical Committee (SAC/TC56) made and centralized. This standard was drafted. Edson (Xiamen) Electronics Co., Ltd., Beijing Institute of Aeronautical Materials, Nanchang Aeronautical University, the Air Force Armament Research Aviation School, Xi'an Jiaotong University, State Nuclear Power Plant Service Technology Co., Armored Force Engineering Institute. The main drafters of this standard. Jimmy Lam, Xu north, Jilin, rejon, Chenzhen Mao, Chen Ye, Dong World Games. Absolute eddy current NDT probe impedance measurement method

1 Scope

1.1 standard specifies the method for determination of absolute eddy current probe detection coil impedance. This standard applies to the bridge, air core or ferrite Core, wound, with or without magnetic shielding conductive material flaw detection probe. This standard can be used as the purchaser prior to receipt of the probe impedance measurement General method. 1.2 This standard does not apply to differential, AC-coupled or transmit/receive probe. This standard does not involve magnetic sensor used in the test Case material. In addition, this standard is not intended for a specific detection probe or select for optimized for a particular application The basic rules of the probe calibration. 1.3 Unit Recommended International System of Units, values \u200b\u200bin parentheses are for reference only.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 12604.6 Terminology for nondestructive testing Eddy current testing

3 Terms and Definitions

Terms and definitions GB/T 12604.6 defined apply to this document.

4 significance and application

Eddy current probe can be used for non-destructive testing of conductive material and structural parts. In most cases, the aim is to find the detection material stored In defects, such as cracks, security will not be eligible to continue to use part or structure. The item did not meet the requirements of the standard eddy current probes are not It can be used to detect, unless the probe after the certification of any other system or manufacturer and the purchaser signed a use agreement, or two cases Have.

5 principle requires

5.1 Use of the test specimen Test specimen described in this standard apply only to the eddy current probe impedance measurement, inspection or test specimen should not be used to detect when the Spirit Determination acuity. 5.2 responsible The initial measurement of the eddy current probe impedance values \u200b\u200bby the probe manufacturer in accordance with this standard measurements. These measurements and the probe should be placed in a Onwards, and the probe by the consumer to save. When the result of the probe can be applied to re-measure the standard, before the probe should be measured using the original Starting impedance value for comparison. Probe after measured impedance value should not be compared with the original value. ......

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