Development of an embedded wireless sensing system for the monitoring of concrete

Quinn, W. E.; Kelly, Ger; Barrett, J.

doi:10.1177/1475921711430438

Cited by 50 publications

(28 citation statements)

References 17 publications

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“…Quinn et al 20 proposed to incorporate AD5933 into a wireless sensing device to monitor initial curing of concrete. The feasibility of AD5933 impedance chip was explored and the results were found comparable with HP4192 impedance analyzer.…”

Section: Miniature Impedance Chip Ad5933mentioning

confidence: 99%

Experimental Evaluation of Miniature Impedance Chip for Structural Health Monitoring of Prototype Steel/RC Structures

et al. 2015

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The electro-mechanical impedance (EMI) technique has been very successful so far in monitoring structural components made of both metals and nonmetals in the fields of civil, mechanical, and aerospace engineering. In the last two decades, researchers have reported fairly good results using the EMI technique through costly conventional hardware, such as impedance analyzer and LCR meter. This paper evaluates the performance of the low-cost miniature impedance chip AD5933 for structural health monitoring (SHM) of prototype structures. Most studies involving AD5933 have been restricted to miniature metal structures only, and in particular, no study has been reported so far on reinforced concrete (RC) structures. In this investigation, experiments are first performed on a real-life-sized RC beam, 150 × 210 × 4000 mm in size, instrumented with 19 pairs of piezoelectric-ceramic lead zirconate titanate (PZT) patches in embedded configuration, aiming to detect and locate incipient to severe damages. Experimental investigations are then extended to a large mild steel plate structure, 1200 × 970 × 8 mm in size, divided into 30 equal panels and instrumented with one PZT patch at each node. The results of the two studies confirm that the low-cost miniature impedance chip is suitable for level-one damage diagnosis in large prototype structures, both steel as well as RC. However it is not suitable for higher level analysis involving extraction of the structural impedance parameters.

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Section: Miniature Impedance Chip Ad5933mentioning

confidence: 99%

Experimental Evaluation of Miniature Impedance Chip for Structural Health Monitoring of Prototype Steel/RC Structures

et al. 2015

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“…Several papers show the feasibility of embedding sensors in concrete [ 2 -4 ]. The most common approach for the communication of sensors' readings is the wireless measurement the impedance of the sensor [ 5 ]. This technique presents few inconveniences.…”

Section: Introductionmentioning

confidence: 99%

Wireless Nanosensors for Embedded Measurement in Concrete Structures

Michelis¹,

Bodelot²,

Laheurte³

et al. 2015

Nanotechnology in Construction

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In this work we propose a wireless architecture for embedded monitoring in concrete. The modular structure of the system allows it to be adapted to different types of sensors. We present the application of such architecture for the detection of microcracks in concrete. A carbon nanotube strain sensor recently developed by the group is used to track mechanical deformations. Full temperature compensation is achieved by a specifi c conditioning circuit.

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“…In addition, PZTs are often used in energy harvesting (EH) [ 29 , 30 , 31 , 32 ] and structural health monitoring (SHM) [ 33 , 34 , 35 , 36 , 37 ], as well as integration of the two: EH-SHM [ 38 , 39 ]. Furthermore, when a piezoceramic transducer is bonded on, or embedded in, a structure, its electric impedance is coupled with the mechanical impedance of the structure, based on which the conditions of the structure can be monitored [ 40 , 41 ]. However, PZTs, in general, have some disadvantages, such as brittleness and poor impact resistance.…”

Section: Introductionmentioning

confidence: 99%

A PVDF-Based Sensor for Internal Stress Monitoring of a Concrete-Filled Steel Tubular (CFST) Column Subject to Impact Loads

Song

2018

Sensors

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Impact loads can have major adverse effects on the safety of civil engineering structures, such as concrete-filled steel tubular (CFST) columns. The study of mechanical behavior and stress analysis of CFST columns under impact loads is very important to ensure their safety against such loads. At present, the internal stress monitoring of the concrete cores CFST columns under impact loads is still a very challenging subject. In this paper, a PVDF (Polyvinylidene Fluoride) piezoelectric smart sensor was developed and successfully applied to the monitoring of the internal stress of the concrete core of a CFST column under impact loads. The smart sensor consists of a PVDF piezoelectric film sandwiched between two thin steel plates through epoxy. The protection not only prevents the PVDF film from impact damages but also ensures insulation and waterproofing. The smart sensors were embedded into the circular concrete-filled steel tube specimen during concrete pouring. The specimen was tested against impact loads, and testing data were collected. The time history of the stress obtained from the PVDF smart sensor revealed the evolution of core concrete internal stress under impact loads when compared with the impact force–time curve of the hammer. Nonlinear finite element simulations of the impact process were also carried out. The results of FEM simulations had good agreement with the test results. The results showed that the proposed PVDF piezoelectric smart sensors can effectively monitor the internal stress of concrete-filled steel tubular columns under impact loads.

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Development of an embedded wireless sensing system for the monitoring of concrete

Cited by 50 publications

References 17 publications

Experimental Evaluation of Miniature Impedance Chip for Structural Health Monitoring of Prototype Steel/RC Structures

Experimental Evaluation of Miniature Impedance Chip for Structural Health Monitoring of Prototype Steel/RC Structures

Wireless Nanosensors for Embedded Measurement in Concrete Structures

A PVDF-Based Sensor for Internal Stress Monitoring of a Concrete-Filled Steel Tubular (CFST) Column Subject to Impact Loads

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