Live demonstration: A CMOS ASIC for precise reading of a Magnetoresistive sensor array for NDT

Caetano, Diogo; Piedade, M.S.; Graça, João Carlos; Fernandes, Jorge; Rosado, Luís S.; Costa, Tiago

doi:10.1109/iscas.2015.7169039

Cited by 8 publications

(3 citation statements)

References 3 publications

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“…The MR elements were fabricated by Sensitec GmbH (GMR) [16] and INESC-MN (Lisbon, Portugal) (TMR) [17]. The ASIC designed by INESC-ID (Lisbon, Portugal) amplifies and multiplexes the signals coming from the MR elements [18]. Further sub-sequent electronics are onboard of the PCB, which was assembled by Sensitec GmbH [16].…”

Section: Eddy Current Testingmentioning

confidence: 99%

Benefits of GMR sensors for high spatial resolution NDT applications

Pelkner¹,

Stegemann²,

Sonntag³

et al. 2018

AIP Conference Proceedings

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Section: Eddy Current Testingmentioning

confidence: 99%

Benefits of GMR sensors for high spatial resolution NDT applications

Pelkner¹,

Stegemann²,

Sonntag³

et al. 2018

AIP Conference Proceedings

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“…Magnetic sensor bias is a method for creating a bipolar output. Detect defects in conductive materials typically includes a transmitter coil and a receiver coil or magnetoresistive sensor for the system using NDT based on EC [101]. An arrangement sensor and the details of the excitation coil and permanent magnet is shown in Fig.…”

Section: Ect Probementioning

confidence: 99%

“… GMR‐based ECT probe‘s schematic and prototype probe withconfiguration of GMR magnetometers sensor (a) Configuration of sensor for GMR magnetometers are connectedwith Wheatstone bridge [101], (b) The biaxial sensors arrangementand the permanent magnet and coil excitation [102]…”

Section: Ect Probementioning

confidence: 99%

Review on system development in eddy current testing and technique for defect classification and characterization

Ali

Abdalla

Rifai

et al. 2017

IET Circuits, Devices & Systems

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Eddy current testing (ECT) is one of the non-destructive evaluation techniques widely used, especially in oil and gas industries. It characterized noisy data to the less-than-perfect detection and as an indication of serious false alarm problem. However, not many researchers have described in detail the intelligent ECT crack detection system. This paper introduces a review of ECT technique and factors that affect the signal fundamental according to the hardware and software development. First, describe the magnetic excitation resources including the sinusoidal and pulse exciting signal. Second, outlines explanation about the ECT probe. The explanations are more about the probes development for air core probe and giant magnetoresistance probe. Third, there is discussion on ECT circuit that used including ECT system, ECT rotating magnetic field and application measurement for optimal control parameters. The defect in characterizations and measurement are discussed on the fourth part of this paper. The fourth part discusses the ECT lift-off compensation including the lift-off and application of intelligent technique in ECT. The limitations of lift-off for coil probe and compensation techniques also discussed in this part. Finally, a comprehensive review of previous studies on the application of intelligent ECT crack detection in nondestructive ECT is presented.

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Spin Electronics for Non Destructive Testing

Pelkner¹,

Kreutzbruck²

2017

Nanomagnetism: Applications and Perspectives

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Live demonstration: A CMOS ASIC for precise reading of a Magnetoresistive sensor array for NDT

Cited by 8 publications

References 3 publications

Benefits of GMR sensors for high spatial resolution NDT applications

Benefits of GMR sensors for high spatial resolution NDT applications

Review on system development in eddy current testing and technique for defect classification and characterization

Spin Electronics for Non Destructive Testing

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