Location

Brunswick, ME

Start Date

1-1-1997 12:00 AM

Description

Traditionally the remote field eddy current (RFEC) phenomenon has been applied to the inspection of ferromagnetic tubes in heat exchangers, boilers etc. The RFEC probe has an exciter and sensor coil spaced such that most of the magnetic field received by the sensor is due to the field that has diffused through the pipe wall. The phase difference between the exciter and sensor signals is indicative of the defect dimensions. This same idea has been applied to the design of a new RFEC probe for inspecting flat ferromagnetic structures [1–3] and thick aluminum plates [4].

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

16A

Chapter

Chapter 4: NDE Sensors

Section

Electromagnetic Probes

Pages

1061-1066

DOI

10.1007/978-1-4615-5947-4_138

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Design Considerations for the Remote Field Eddy Current Probe for Inspecting Ferromagnetic Flat Structures

Brunswick, ME

Traditionally the remote field eddy current (RFEC) phenomenon has been applied to the inspection of ferromagnetic tubes in heat exchangers, boilers etc. The RFEC probe has an exciter and sensor coil spaced such that most of the magnetic field received by the sensor is due to the field that has diffused through the pipe wall. The phase difference between the exciter and sensor signals is indicative of the defect dimensions. This same idea has been applied to the design of a new RFEC probe for inspecting flat ferromagnetic structures [1–3] and thick aluminum plates [4].