GB/T 30820-2014 (English Version) PDF

Standard No.: GB/T 30820-2014
Language: Chinese, Available in English version
Release Date: 2014
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 30820-2014

Scope: 1.1 This standard specifies the method for measuring the impedance of the detection coil of an absolute eddy current probe. This standard applies to conductive material flaw detection probes of bridge type, air core or ferrite core, wire wound, with or without magnetic shielding. This standard can be used as a general method for measuring the probe impedance before the purchaser receives the goods. 1.2 This standard does not apply to differential, AC-coupled, or transmit/receive probes. This standard does not address the case of magnetic materials used in test probes. In addition, this standard does not apply to the basic rules for the optimal selection of probes for a specific application or the calibration of probes for a specific test. 1.3 It is recommended to use the International System of Units, and the values in brackets are for reference only.

GB/T 30820-2014 Referenced Document

GB/T 12604.6 Non-destructive testing—Terminology—Eddy current testing*， 2021-05-21 Update

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