Inkjet printed all-polymer flexural plate wave sensors

Busch, John Robert; Sielmann, Christoph; Man, Gabriel; Tsan, Derek; Walus, Konrad; Stoeber, Boris

doi:10.1109/memsys.2012.6170181

Cited by 8 publications

(5 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Note that fiber-waveguide type sensors usually have a strong sensing directivity, but now the directivity can be minimized using the cross-adhesion setup [184]. Other less common options include polyvinylidene fluoride sensors or comb transducers [189][190][191].…”

Section: Transducer Selectionmentioning

confidence: 99%

Guided ultrasonic waves propagation imaging: a review

Chia¹,

Lee²,

Harmin³

et al. 2023

Meas. Sci. Technol.

View full text Add to dashboard Cite

This article presents a comprehensive review of the laser-based guided ultrasonic waves propagation imaging (G-UPI) system and respective signal/data processing methods related to the nondestructive testing and evaluation of thin-walled structures. The primary goal of this study is to review and recognize various processing methods, explain the working principles of the most influential methods, and highlight outstanding capabilities. In addition, the suitability of the methods for multiple types of damage and defect in various materials and structures are presented. At the same time, success stories of difficult-to-inspect cases are highlighted. Its secondary goal is to compare and discuss the merits and demerits of the laser-scanning part of the system for ultrasound generation and acquisition to provide a guideline for scanning scheme or hardware selection. Finally, the potential challenges and prospects of the G-UPI are discussed. It is expected that this review would serve as an entrance key for newcomers and a reference point for researchers to explore the opportunities for further improvement in the laser ultrasound-based evaluation of critical engineering structures.

show abstract

Section: Transducer Selectionmentioning

confidence: 99%

Guided ultrasonic waves propagation imaging: a review

Chia¹,

Lee²,

Harmin³

et al. 2023

Meas. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…Full details of this process can be found in [1] and [3]. Key characteristics of the sensor used here are described in table 1.…”

Section: Fabrication and Experimentsmentioning

confidence: 99%

“…Concentration was adjusted by varying the relative flow rate of clean and toluene-saturated air while maintaining constant total flow. During operation, a custom chirp signal with a 160 kHz centre frequency and 300 Vpp amplitude was applied to the input of the sensor to generate FPWs in the substrate [1][2][3]. For these experiments, one sensor was coated in PVAc and PS and exposed over 3 different test sessions for each of the two layers.…”

Section: Table 1: Sensor Characteristicsmentioning

confidence: 99%

See 1 more Smart Citation

VOC detection using an all polymer flexural plate wave sensor

Berring

Sielmann

Stoeber

et al. 2013

2013 Transducers &Amp; Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems

Self Cite

View full text Add to dashboard Cite

We have developed an all-polymer, micro-inkjet printed, flexural plate wave (FPW) sensor for toluene vapor detection. The sensor consists of a piezoelectric polyvinylidene fluoride (PVDF) substrate with conductive polyethylenedioxythiophene polystyrene sulfonate (PEDOT:PSS) interdigitated transducers (IDTs) and a polymer sensing layer coating for selective absorption of a targeted analyte. Sensor performance is investigated by exposing polyvinyl acetate (PVAc) and polystyrene (PS) sensing layers to varying concentrations of toluene vapor. The resulting frequency shift, due to mass loading, expansion and softening of the sensing layers, is compared with predictions using a semi empirical model. In this work, Flory-Huggins solution theory is used to predict the mechanical response of the sensing layers to solvent vapor concentrations.

show abstract

“…Due to its low cost, resistance to chemicals, oxidation, and UV radiation, as well as its favorable mechanical properties, PVDF is used in pressure sensors, bimorph actuators, microphones, gas flow, and humidity sensors, as well as electro-mechanical and ultrasonic sensors. It is also successfully used as a substrate for sensing flexural waves in plates [ 1 , 2 , 3 , 4 , 5 , 6 ]. PVDF exists in a combination of four crystalline phases, α, β, γ, and δ.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Characterization of Non-Equilibrium Plasma-Treated PVDF Nanofiber Membrane-Based Sensors

Sultana

Khan

Mahamud

et al. 2021

Sensors

View full text Add to dashboard Cite

The effect of a self-pulsing non-equilibrium plasma discharge on piezoelectric PVDF nanofiber membrane was investigated. The plasma discharge was generated in air with a DC power source, with a discharge current of 0.012 mA, a nominal interelectrode separation of 1 mm, and discharge voltage of ~970 V. In a continuous fabrication process, the electrospinning method was used to generate thin nanofiber membrane with a flow rate of 0.7–1 mL h−1 and 25–27 kV voltage to obtain the nanofiber with high sensitivity and a higher degree of alignment and uniformity over a larger area. Plasma treatment was applied on both single layer and multi-layer (three layers) nanomembranes. In addition, simultaneously, the nanofiber membranes were heat-treated at a glass transition temperature (80–120 °C) and then underwent plasma treatment. Fourier-transform infrared (FTIR) spectroscopy showed that the area under the curve at 840 and 1272 cm−1 (β phase) increased due to the application of plasma and differential scanning calorimeter (DSC) indicated an increase in the degree of crystallinity. Finally, PVDF sensors were fabricated from the nanofibers and their piezoelectric properties were characterized. The results suggested that compared to the pristine samples the piezoelectric properties in the plasma and plasma-heat-treated sensors were enhanced by 70% and 85% respectively.

show abstract

Inkjet printed all-polymer flexural plate wave sensors

Cited by 8 publications

References 5 publications

Guided ultrasonic waves propagation imaging: a review

Guided ultrasonic waves propagation imaging: a review

VOC detection using an all polymer flexural plate wave sensor

Fabrication and Characterization of Non-Equilibrium Plasma-Treated PVDF Nanofiber Membrane-Based Sensors

Contact Info

Product

Resources

About