Computation of Eddy Current Signals and Quantitative Inversion with Realistic Probe Models

Muennemann, F.; Ayter, S.; Auld, B. A.

doi:10.1007/978-1-4684-1194-2_59

Cited by 4 publications

(4 citation statements)

References 2 publications

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“…Its physical dimensions were: r = 0.81 mm, ar = 1.22 mm, t = 3.56 mm, and ho = 0.51 mm. This same probe was used in several earlier studies by other groups (Auld et al, 1984c;Muennemann et al, 1984;and Rummel and Rathke, 1984).…”

Section: Methodsmentioning

confidence: 99%

“…Yet much progress has been made in recent years on quantitative modeling of probe field-flaw interactions, as delineated in the recent reviews by Auld et al (1984 a and b). In particular, fully parametrized solutions for the response of an eddy current probe to a flaw are now available for the case of rectangular-shaped surface-breaking flaws interrogated by a nonuniform probe-field (Muennemann et al, 1983;Auld et al, 1984a).…”

Section: Theorymentioning

confidence: 99%

See 1 more Smart Citation

Calibration Methods for Eddy Current Measurement Systems

Moulder

Gerlitz

Auld

et al. 1985

Review of Progress in Quantitative Nondestructive Evaluation

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Section: Methodsmentioning

confidence: 99%

Section: Theorymentioning

confidence: 99%

Calibration Methods for Eddy Current Measurement Systems

Moulder

Gerlitz

Auld

et al. 1985

Review of Progress in Quantitative Nondestructive Evaluation

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“…Figure 6 compares the theoretical phase and magnitude of ~Z , calculated from the analysis above, with measurements performed, using the technique described by Muennemann, et al (1984), on an EDM notch. The measurements were made by scanning along the Xo direction in Fig.…”

Section: Comparison Of Theory and Experimentsmentioning

confidence: 99%

Eddy Current Signal Calculations for Surface Breaking Cracks

Auld

Ayter

Muennemann

et al. 1984

Review of Progress in Quantitative Nondestructive Evaluation

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“…A brief review of this material, together with some of this year's extensions, is given by a companion paper (Muennemann, et al, 1984). At this point it is sufficient to recall that the general form of the general eddy current equation is …”

Section: Theory Of Ec Probe Operationmentioning

confidence: 99%

Experimental Methods for Eddy Current Probe Design and Testing

Auld

Muennemann

Burkhardt

1984

Review of Progress in Quantitative Nondestructive Evaluation

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The purpose of this paper is to briefly review the influence of EC probe parameters on the performance of the complete NDE system and to describe experimental methods for measuring these parameters. Combined theory and experiment is required to quantify probe response, to design optimum probes for specific applications, to verify the reproducibility of probe performance during manufacture, and to verify the stability and precision of probe calibration. For these purposes it is necessary to consider, at least, the following probe parameters: (1) input impedance, for design of adjacent circuitry; (2) selfresonant frequency, for upper frequency limits of operation; (3) the ratio of probe field intensity to input current, for sensitivity; and (4) the distribution (or shape) of the flaw interrogating field generated by the probe -for control of flaw response, liftoff response and spatial resolution (i.e., separation of closely spaced flaws and discrimination against edges and corners).Measurements of probe impedance and self-resonant frequency are standard, and will not be discussed here. For items (3) and (4) there are, in general, two classes of experiment that may be used: direct methods, where one measures probe characteristics with instruments which are independent of the probe (such as measuring the magnetic field distribution of a probe with a small Hall-effect probe), and perturbation methods, where one examines the field 477

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Computation of Eddy Current Signals and Quantitative Inversion with Realistic Probe Models

Cited by 4 publications

References 2 publications

Calibration Methods for Eddy Current Measurement Systems

Calibration Methods for Eddy Current Measurement Systems

Eddy Current Signal Calculations for Surface Breaking Cracks

Experimental Methods for Eddy Current Probe Design and Testing

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