Browse > Article
http://dx.doi.org/10.14775/ksmpe.2022.21.05.016

The Effect of the Deformation on the Sensitivity of a Flexible PDMS Membrane Sensor to Measure the Impact Force of a Water Droplet  

Kang, Dong Kwan (Division of Mechanical, Automotive and Robot Component Engineering, Dong-Eui University)
Lee, Sangmin (Division of Mechanical, Automotive and Robot Component Engineering, Dong-Eui University)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.21, no.5, 2022 , pp. 16-21 More about this Journal
Abstract
This study investigates the effect of the deformation on the sensitivity of a flexible polydimethylsiloxane (PDMS) membrane sensor. A PDMS membrane sensor was developed to measure the impact force of a water droplet using a silver nanowire (AgNW). The initial deformation of the membrane was confirmed with the application of a tensile force (i.e., tension) and fixing force (i.e., compressive force) at the gripers, which affects the sensitivity. The experimental results show that as the tension applied to the membrane increased, the sensitivity of the sensor decreased. The initial electrical resistance increased as the fixing force increased, while the sensitivity of the sensor decreased as the initial resistance increased. The movement of the membrane due to the impact force of the water droplet was observed with a high-speed camera, and was correlated with the measured sensor signal. The analysis of the motion of the membrane and droplets after collision confirmed the periodic movement of not only the membrane but also the change in the height of the droplet.
Keywords
Membrane Sensor; Deformation; Tensile Force; Drop Impact;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Mitchell, B. R., Klewicki, J. C., Korkolis, Y. P., and Kinsey, B. L., "The Transient Force Profile of Low-speed Droplet Impact: Measurements and Model," Journal of Fluid Mechanics, Vol. 867, No. 5, pp. 300-302, 2019.   DOI
2 Khojasteh, D., Kazerooni, M., Salarian, S., and Kamali, R., "Droplet Impact on Superhydrophobic Surfaces: A Review of Recent Developments," Journal of Industrial and Engineering Chemistry, Vol. 42, No. 25, pp. 1-14, 2016.   DOI
3 Pasandideh-Fard, M., Qiao, Y. M., Chandra, S., and Mostaghimi, J., "Capillary Effects During Droplet Impact on a Solid Surface," Physics of Fluids, Vol. 8, No. 3, pp. 650-659, 1996.   DOI
4 de Oliveira, J. G., Muhammad, T., and Kim, S., "A Silver Nanowire-based Flexible Pressure Sensor to Measure The Non-nutritive Sucking Power of Neonates," Micro and Nano Systems Letters, Vol. 8, No.1, pp. 1-9, 2020.   DOI
5 Kim, K., Ahn, J., Jeong, Y., Choi, J., Gul, O., and Park, I., "All-soft Multiaxial Force Sensor Based on Liquid Metal for Electronic Skin," Micro and Nano Systems Letters, Vol. 9, No.1, pp. 1-8, 2021.   DOI
6 Grinspan, A. S., & Gnanamoorthy, R., "Impact Force of Low Velocity Liquid Doplets Masured using Piezoelectric PVDF Film," Colloids and Surface A: Physicochemical and Engineering Aspects, Vol. 356, No. 1-3, pp. 162-168, 2010.   DOI
7 Mangili, S., Antonini, C., Marengo, M., and Amirfazli, A., "Understanding the Drop Impact Phenomenon on Soft PDMS Substrates," Soft Matter, Vol. 8, No. 39 pp. 45-54, 2012.
8 Amjadi, M., Pichitpajongkit, A., Lee, S., Ryu, S., and Park, I., "Highly Stretchable and Sensitive Strain Sensor Based on Silver Nanowire-Elastomer Nanocomposite," ACS Nano, Vol. 8, No. 5, pp. 5154-5163, 2014.   DOI
9 Sin, Y., Kim, S., Lee, J., Lee, S., and Lee, K., "Analysis of Signal Characteristics of Resistance Scanning-type Flexible Tactile Sensor," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 14 No. 5, pp.28-35, 2015.
10 Zhang, B., Li, J., Guo, P., and Lv, Q., "Experimental Studies on the Effect of Reynolds and Weber Numbers on the Impact Forces of Low-speed Droplets Colliding with a Solid Surface," Experiments in Fluids, Vol. 58, No.9, pp. 1-12, 2017.   DOI
11 Pang, C., Lee, G. Y., Kim, T. I., Kim, S. M., Kim, H. N., Ahn, S. H., and Suh, K. Y., "A Flexible and Highly Sensitive Strain-gauge Sensor using Reversible Iterlocking of Nanofibres," Nature Materials, Vol. 11, No. 9, pp. 795-801, 2012.   DOI
12 Kim, S., Kim, H., and Lee, H., "Study on the Performance of Flexible Tactile Sensors According to the Substrate Stiffness," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 20, No. 9, pp. 104~109, 2021.   DOI