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  • ASTM
    E1629-12 Standard Practice for Determining the Impedance of Absolute Eddy-Current Probes
    Edition: 2012
    $144.00
    Unlimited Users per year

Description of ASTM-E1629 2012

ASTM E1629 - 12

Standard Practice for Determining the Impedance of Absolute Eddy-Current Probes

Active Standard ASTM E1629 | Developed by Subcommittee: E07.07

Book of Standards Volume: 03.03




ASTM E1629

Significance and Use

4.1 Eddy-current probes may be used for the nondestructive examination of parts or structures made of electrically conducting materials. Many of these examinations are intended to discover material defects, such as cracks, that may cause the part or structure to be unsafe or unfit for service. Eddy-current probes that fail to meet the performance level requirements of this practice shall not be used for the examination of material or hardware unless the probe is qualified by some other system or an agreement has been reached by the probe manufacturer and the purchaser, or both.

1. Scope

1.1 This practice covers a procedure for determining the impedance of absolute eddy-current probes (bridge-type, air or ferrite core, wire wound, shielded, or unshielded) used for finding material defects in electrically conducting material. This practice is intended to establish a uniform methodology to measure the impedance of eddy-current probes prior to receipt of these probes by the purchaser or the specifier.

1.2 Limitations This practice does not address the characterization or measurement of the impedance of differential, a-c coupled, or transmit/receive types of probes. This practice does not address the use of magnetic materials in examination probes. This practice shall not be used as a basis for selection of the best probe for a particular application or as a means by which to calibrate or standardize a probe for a specific examination. This practice does not address differences in the impedance values that can be obtained when the probe and material are in relative motion, as in a rotating probe, since the procedure described here requires the probe and material to be stationary.

1.3 Units The values stated in SI units are to be regarded as the standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

E1316 Terminology for Nondestructive Examinations


Keywords

absolute eddy-current probes; eddy-current probes; impedance; nondestructive testing ;


ICS Code

ICS Number Code 19.100 (Non-destructive testing); 77.040.20 (Non-destructive testing of metals)


DOI: 10.1520/E1629-12

ASTM International is a member of CrossRef.

ASTM E1629



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