System-on-Chip Integration of a New Electromechanical Impedance Calculation Method for Aircraft Structure Health Monitoring

Boukabache, Hamza; Escriba, Christophe; Zedek, Sabeha Fettouma; Medale, Daniel; Rolet, S.; Fourniols, Jean-Yves

doi:10.3390/s121013617

Cited by 23 publications

(13 citation statements)

References 18 publications

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“…Detecting a crack or notch using the EMI technique of structures can be said to be one of the most investigated areas of the EMI technique. This includes detecting damage subjected to different structure types such as metal, composites and concrete structures [ 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 ]. A good correlation relationship can be seen between the distance and severity of damage compared to a statistical metric.…”

Section: Investigations On the Emi Techniquementioning

confidence: 99%

A Review of the Piezoelectric Electromechanical Impedance Based Structural Health Monitoring Technique for Engineering Structures

Baek

2018

Sensors

246

153

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The birth of smart materials such as piezoelectric (PZT) transducers has aided in revolutionizing the field of structural health monitoring (SHM) based on non-destructive testing (NDT) methods. While a relatively new NDT method known as the electromechanical (EMI) technique has been investigated for more than two decades, there are still various problems that must be solved before it is applied to real structures. The technique, which has a significant potential to contribute to the creation of one of the most effective SHM systems, involves the use of a single PZT for exciting and sensing of the host structure. In this paper, studies applied for the past decade related to the EMI technique have been reviewed to understand its trend. In addition, new concepts and ideas proposed by various authors are also surveyed, and the paper concludes with a discussion of the potential directions for future works.

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Section: Investigations On the Emi Techniquementioning

confidence: 99%

A Review of the Piezoelectric Electromechanical Impedance Based Structural Health Monitoring Technique for Engineering Structures

Baek

2018

Sensors

246

153

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“…It is based on a System on Chip (SoC) that integrates a dual core ARM Cortex-A9 microprocessor in the same die of a Field-Programmable Gate Array (FPGA) programmable logic, granting both great flexibility and processing power to the digital system. The FPGA part of the SoC ( 4 ) is commonly referred as Programmable Logic, while the dual ARM Cortex-A9 is referred as the Processing System. The first part is used for low level or low latency functionalities: Communication with digitalisation circuits and fast commutation chips.…”

Section: System Architecturementioning

confidence: 99%

Towards a Novel Modular Architecture for Cern Radiation Monitoring

Boukabache

Pangallo

Ducos

et al. 2016

Radiation Protection Dosimetry

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The European Organization for Nuclear Research (CERN) has the legal obligation to protect the public and the people working on its premises from any unjustified exposure to ionising radiation. In this context, radiation monitoring is one of the main concerns of the Radiation Protection Group. After 30 y of reliable service, the ARea CONtroller (ARCON) system is approaching the end of its lifecycle, which raises the need for new, more efficient radiation monitors with a high level of modularity to ensure better maintainability. Based on these two main principles, new detectors are currently being developed that will be capable of measuring very low dose rates down to 50 nSv h−1, whilst being able to measure radiation over an extensive range of 8 decades without any auto scaling. To reach these performances, CERN Radiation MOnitoring Electronics (CROME), the new generation of CERN radiation monitors, is based on the versatile architecture that includes new read-out electronics developed by the Instrumentation and Logistics section of the CERN Radiation Protection Group as well as a reconfigurable system on chip capable of performing complex processing calculations. Beside the capabilities of CROME to continuously measure the ambient dose rate, the system generates radiation alarms, provides interlock signals, drives alarm display units through a fieldbus and provides long-term, permanent and reliable data logging. The measurement tests performed during the first phase of the development show very promising results that pave the way to the second phase: the certification.

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“…Monitoring fast changes in structure integrity such as crack propagation or damage from impact may benefit from a broad-band chirp excitation developed in [13,14]. Paper [15] also describes generation of a broad-band comb-spectrum chirp utilizing a related chip: programmable waveform generator AD5932.…”

Section: Resonator-based Structural Health Monitoringmentioning

confidence: 99%

Improving Performance and Versatility of Systems Based on Single-Frequency DFT Detectors Such as AD5933

Matsiev

2014

Electronics

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Abstract:Turning grand concepts such as the Internet of Things (IoT) and Smart Cities into reality requires the development and deployment of a wide variety of computing devices incorporated into the Internet infrastructure. Unsupervised sensing is the cornerstone capability that these devices must have to perform useful functions, while also having low cost of acquisition and ownership, little energy consumption and a small footprint. Impedimetric sensing systems based on the so-called single-frequency DFT detectors possess many of these desirable attributes and are often introduced in remote monitoring and wearable devices. This study presents new methods of improving performance of such detectors. It demonstrates that the main source of systematic errors is the discontinuous test phasor causing the crosstalk between the in-phase and quadrature outputs and the leakage of the input signal. The study derives expressions for these errors as a function of the number of samples and operating frequency, and provides methods for correction. The proposed methods are applied to the operation of a practical device-a network analyzer integrated circuit AD5933-and discussed in detail. These methods achieve complete elimination of leakage errors and expansion of the low limit of the operation frequency range by nearly two decades without additional hardware.

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System-on-Chip Integration of a New Electromechanical Impedance Calculation Method for Aircraft Structure Health Monitoring

Cited by 23 publications

References 18 publications

A Review of the Piezoelectric Electromechanical Impedance Based Structural Health Monitoring Technique for Engineering Structures

A Review of the Piezoelectric Electromechanical Impedance Based Structural Health Monitoring Technique for Engineering Structures

Towards a Novel Modular Architecture for Cern Radiation Monitoring

Improving Performance and Versatility of Systems Based on Single-Frequency DFT Detectors Such as AD5933

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