A wireless smart PVDF sensor for structural health monitoring

Gu, Haoshuang; Yang, Zhao; Wang, Ming L.

doi:10.1002/stc.61

Cited by 53 publications

(35 citation statements)

References 9 publications

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“…In some studies, this is done using wireless data transmission [18,22,23,72]. Wireless transmitters require a power source, meaning that there must also be a battery on the wheel or tire.…”

Section: Slip Ringsmentioning

confidence: 99%

Investigation into use of piezoelectric sensors in a wheeled robot tire for surface characterization

Armstrong

Sandu

Taheri

2015

Journal of Terramechanics

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A differential steered, 13.6 kg robot was developed as an intelligent tire testing system and was used to investigate the potential of using piezoelectric film sensors in small tube-type pneumatic tires to characterize tire-ground interaction.One focus of recent research in the tire industry has been on instrumenting tires with sensors to monitor the tire, vehicle, or external environment. On small robots, tire sensors that measure the forces and deflections in the contact patch could be used to improve energy efficiency and/or mobility during a mission.The robot was assembled from a SuperDroid Robots kit and instrumented with low-cost piezoelectric film sensors from Measurement Specialties between the inner tube and the tire. An unlaminated and a laminated sensor were placed circumferentially along the tread and an unlaminated sensor was placed along the sidewall. A slip ring transferred the signals from the tire to the robot. There, the signal conditioning circuit extended the time constant of the sensors and filtered electromagnetic interference. The robot was tested with a controlled power sequence carried out on polished cement, ice, and sand at three power levels, two payload levels, and with two tire sizes.The results suggest that the sensors were capable of detecting normal pressure, deflection, and/or longitudinal strain. Added payload increased the amplitude of the signals for all sensors. On the smaller tires, sensors generally recorded a smaller, wider signal on sand compared to cement, indicating the potential to detect contact patch pressure and length. The signals recorded by the unlaminated sensor along the tread of the smaller tire were lower on ice compared to cement, indicating possible sensitivity to tractive force. Results were less consistent for the larger tires, possibly due to the large tread pattern.

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“…In some studies, this is done using wireless data transmission [18,22,23,72]. Wireless transmitters require a power source, meaning that there must also be a battery on the wheel or tire.…”

Section: Slip Ringsmentioning

confidence: 99%

Investigation into use of piezoelectric sensors in a wheeled robot tire for surface characterization

Armstrong

Sandu

Taheri

2015

Journal of Terramechanics

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“…They can be utilized as fibers and films mostly in linear movement requirements in various engineering applications such as active micro air vehicle wings 4 , piezolaminated columns 18 , and shape correction films in space applications 19 . Other applications may include: Proton exchange membranes 20 , filtration membranes 21 , structural health monitoring 22 , endoscopic tactile sensors 23 , and macrofluidic control 24 , Kwon and Dzenis, for instance, embedded PVDF films of tens of microns thick into the graphite/epoxy (CFRP) composite laminates to monitor the tensile failure of unidirectional CFRP laminates 25 .…”

Section: Introductionmentioning

confidence: 99%

Poly(vinylidene fluoride)/zinc oxide smart composite material

Öğüt

Yördem

Menceloǵlu

et al. 2007

Behavior and Mechanics of Multifunctional and Composite Materials 2007

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This work aimed at fabrication and electromechanical characterization of a smart material system composed of electroactive polymer and ceramic materials. The idea of composite material system is on account of complementary characteristics of the polymer and ceramic for flexibility and piezoelectric activity. Our preliminary work included Polyvinylidene Fluoride (PVDF) as the flexible piezoelectric polymer, and Zinc Oxide (ZnO) as the piezoelectric ceramic brittle, but capable to respond strains without poling. Two alternative processes were investigated. The first process makes use of ZnO fibrous formation achieved by sintering PVA/zinc acetate precursor fibers via electrospinning. Highly brittle fibrous ZnO mat was dipped into a PVDF polymer solution and then pressed to form pellets. The second process employed commercial ZnO nanopowder material. The powder was mixed into a PVDF/acetone polymer solution, and the resultant paste was pressed to form pellets. The free standing composite pellets with electrodes on the top and bottom surfaces were then subjected to sinusoidal electric excitation and response was recorded using a fotonic sensor. An earlier work on electrospun PVDF fiber mats was also summarized here and the electromechanical characterization is reported.

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“…It is recommended for complex and large structures because of practical measurements. It uses a vibration response to detect defects in a structure [23][24][25].…”

Section: Related Literaturementioning

confidence: 99%

The Continuous Monitoring of the Health of Composite Structure

Masango

Philander

Msomi

2018

Journal of Engineering

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Currently nondestructive testing techniques for composite aircraft structures are disadvantaged when compared to instant structural health monitoring (SHM) systems that monitor the structure while being in-service and give real-time data. This paper reports on the use of Polyvinylidene Fluoride (PVDF) sensors in sensing (or monitoring) and locating the defect of a flexible composite structure. The samples used for the tests were manufactured through the use of vacuum infusion process. The threepoint bending test was performed to determine the material properties. The vertical sample deflection was measured through the use of vertical height Vernier. It should be noted that the samples were analyzed as cantilever beam due to limited availability of test equipment. The sample health was monitored through the use of PVDF sensor. The sensor data was logged and recorded through the use of Fluke-View scopemeter. The 50 g mass pieces were used as a mode of subjecting the structure to the vertical load. The experiment was performed on samples with defects (drilled 3 mm hole) sample and no-defected sample. The deflection and output voltage from the PVDF sensor of all the samples were comparatively studied.

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A wireless smart PVDF sensor for structural health monitoring

Cited by 53 publications

References 9 publications

Investigation into use of piezoelectric sensors in a wheeled robot tire for surface characterization

Investigation into use of piezoelectric sensors in a wheeled robot tire for surface characterization

Poly(vinylidene fluoride)/zinc oxide smart composite material

The Continuous Monitoring of the Health of Composite Structure

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