A proposal of new layer sensor based on PVDF film for material identification

Kimoto, Akira; Fujisaki, Shintarou; Sugitani, Naoki

doi:10.1016/j.sna.2010.04.013

Cited by 7 publications

(3 citation statements)

References 24 publications

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“…The resonance frequencies match well with commercial sensors and good coherence over a wide frequency range was observed. PVDF film is a proven material in many sensing applications including, but not limited to, material identification sensors [100], pressure sensors [101], adaptive vibration control [102], and for investigating the dynamic response of vibrating structures [103,104]. Simultaneous sensing and actuation are desirable in microrobotic and biomedical applications.…”

Section: Piezopolymer Thin Filmsmentioning

confidence: 99%

Piezoelectric thin films: an integrated review of transducers and energy harvesting

Khan

Abas

Kim

et al. 2016

Smart Mater. Struct.

199

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Piezoelectric thin films offer a number of advantages in various applications, such as high energy density harvesters, a wide dynamic range, and high sensitivity sensors, as well as large displacement and low power consumption actuators. This review covers the available material forms and applications of piezoelectric thin films: lead zirconate titanate (PZT)-based thin films, lead-free piezoelectric thin films, piezopolymer films, cellulose-based electroactive paper (EAPap), and many other thin films used for electromechanical transduction. The electromechanical properties and performances of piezoelectric films are compared and their suitability for particular applications are reported. The key ideas of piezoelectric thin films are reviewed and discussed for sensory and actuation systems, energy harvesting, and medical and acoustic transducers. In the last section, an insight into the future outlook and possibilities for thin film-based devices and their integration into real-world applications is presented.

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Section: Piezopolymer Thin Filmsmentioning

confidence: 99%

Piezoelectric thin films: an integrated review of transducers and energy harvesting

Khan

Abas

Kim

et al. 2016

Smart Mater. Struct.

199

View full text Add to dashboard Cite

show abstract

“…That is, while optical sensors are not able to penetrate deep into opaque samples, the eddy current sensor cannot efficiently probe dielectric materials in its proximity. Previous studies have shown that optical reflectance probes can be successfully combined with capacitance [22,23] and eddy current measurements [24]. However, we are not aware of any studies wherein optical spectroscopy is combined with eddy current sensing in one sensor.…”

Section: Introductionmentioning

confidence: 98%

Optical fibre spectrometer combined with a magnetic resonance sensor for multiple depth monitoring

Helseth

2013

Meas. Sci. Technol.

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Under some circumstances, it is necessary to do optical spectroscopy on a front surface while at the same time monitoring the presence of a hidden metallic layer. Here, a novel sensor system to do this based on the combination of a visible light optical fibre spectrometer with a magnetic resonance eddy current sensor is demonstrated. It is shown that the the eddy current sensor can probe a hidden metallic film placed up to 1 cm behind the dielectric front surface. The combination of two such detection principles allows one to probe layered materials at multiple depths, revealing their electromagnetic properties at different frequencies.

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“…Bhavanasi et al 26 used PVDF‐TrFE and graphene oxide compounds to fabricate energy‐collecting piezoelectric double films after heat treatment, whose bilayer film exhibited superior energy harvesting performance with a voltage output of 4 V and power output of 4.41 μW cm −2 compared with poled PVDF‐TrFE films alone (voltage output of 1.9 V and power output of 1.77 μW cm −2 ). Kimoto et al 27 proposed a new layer sensor based on PVDF film using vertical array strips to measure the pressure distribution. Yang et al 28 prepared PVDF/zinc oxide (ZnO) nanofiber piezoelectric sensors with 3D layer interlocking by electrospinning PVDF nanofibers and then growing ZnO nanorods on the surface of the fiber by epitaxial growth, which enabled the physiological electronics monitoring (PEM) of well flexibility and high gas permeability.…”

Section: Introductionmentioning

confidence: 99%

Hierarchically structured polyvinylidene fluoride core‐shell composite yarn based on electrospinning coating method to improve piezoelectricity

Peng

et al. 2022

Polymers for Advanced Techs

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Wearable electronic skin with high sensitivity and self-power has shown increasing prospects for applications, such as human health monitoring and intelligent electronic products. Here, AgNY/polyvinylidene fluoride (PVDF)@TiO 2 /Ag/PVDF (APTAP) composite yarn with 3D hierarchically structure is fabricated by a conjugate electrospinning coating method and wet chemical deposition. The fabricated APTAP yarn has respectable piezoelectric performance whose voltage output and current output reached 1650 mV and 70 nA when the silver-plated concentration is 2%. In addition, the composite piezoelectric yarn shows good mechanical properties that tensile strength and elongation at break of the piezoelectric yarn with a silver-plated concentration of 3% reach 284.37 MPa and 61.80%. A fabric is woven based on this yarn and it has a respectable signal output and shows satisfactory sensitivity that can be used to detect subtle signals. Therefore, this fiber-based sensor provides an idea for monitoring the subtle physiological signals of the human body and shows broad potential in the extended application of medical care and clinical diagnosis in the future.

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A proposal of new layer sensor based on PVDF film for material identification

Cited by 7 publications

References 24 publications

Piezoelectric thin films: an integrated review of transducers and energy harvesting

Piezoelectric thin films: an integrated review of transducers and energy harvesting

Optical fibre spectrometer combined with a magnetic resonance sensor for multiple depth monitoring

Hierarchically structured polyvinylidene fluoride core‐shell composite yarn based on electrospinning coating method to improve piezoelectricity

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