Skip to main navigation menu Skip to main content Skip to site footer
Journal of Modern Mechanical Engineering and Technology

Articles

Vol. 5 (2018)

A Flexible Thin Film Single-Point Force Sensor from PVDF Film

DOI
https://doi.org/10.31875/2409-9848.2018.05.4
Submitted
September 11, 2018
Published
2018-09-11

Abstract

On the basis of piezoelectric effect of PVDF film, the flexible thin film single-point force sensor with total dimension 75mmx20mmx1mm is devised to dynamically measure single-point force in biomedical or mechanical field. New flat interlayer structure with cavum is firstly introduced to enlarge the deformation of PVDF thin film, and a conductive supporting rack is firstly utilized to construct a detecting cavum and to realize the connection between PVDF film and down conductive electrode. Such structure is flat as the traditional sandwich structure; but its cavum may make sensor have a sensitive reaction and larger measurement range. Its measurement range is from 0 to 6217N and it works between -40°C and 80°C. The total thickness 1mm is so thin that the given sensor can be easily placed into aperture. Results of experiment and analysis illustrate that the developed sensor is available and that it may be used to dynamically sense a single-point force. The flat interlayer structure given is thin and flexible and flat and implantable. Such sensor makes that it becomes possible to dynamically measure single-point force in mechanical field or biomedical field.

References

  1. Volf J, Holý S, Vlček J. Using of tactile transducer for pressure-distribution measurement on the sole of the foot [J]. Sensors and Actuators A 1997; 62: 556-561. https://doi.org/10.1016/S0924-4247(97)01568-9
  2. Saxena RS, Bhan RK, Aggrawal A. A new discrete circuit for readout of resistive sensor arrays [J]. Sensors and Actuators A 2009; 1: 93-99. https://doi.org/10.1016/j.sna.2008.10.013
  3. Chang S-P, Lee J-B, Allen MG. Robust capacitive pressure sensor array [J]. Sensors and Actuators A 2002; 2: 231-238. https://doi.org/10.1016/S0924-4247(02)00193-0 A Flexible Thin Film Single-Point Force Sensor from PVDF Film Journal of Modern Mechanical Engineering and Technology, 2018, Vol. 5 55
  4. Crawford SA. Stinson MD, Walsh DM, Porter-Armstrong AP. Impact of sitting time on seat-interface pressure and on pressure mapping with multiple sclerosis patients [J]. Archives of Physical Medicine and Rehabilitation 2005; 6: 1221-1225. https://doi.org/10.1016/j.apmr.2004.08.010
  5. Lowe M, King A, Lovett E, et al. Flexible tactile sensor technology: bringing haptics to life [J]. Sensor Review 2004; 24: 33-36. https://doi.org/10.1108/02602280410515798
  6. Boon K, Tan H. Assessing doctors' compliance with guidelines on diabetes management [J]. International Journal of Health Care Quality Assurance 2006; 3: 267-286. https://doi.org/10.1108/09526860610661482
  7. Zhou GF, Zhao YL, Jiang ZD. A flexibly single-point force sensor[C]. Amer Soc Mechanical Engineers: Micronano2008 international conference 189-193.
  8. Fernandes CP, Glantz P-OJ, Svensson SA, et al. A novel sensor for bite force determinations [J]. Dental Materials 2003; 19: 118-126. https://doi.org/10.1016/S0109-5641(02)00020-9
  9. Vaishnav VS, Patel PD, Patel NG. Indium Tin Oxide thin film gas sensors for detection of ethanol vapors [J]. Thin Solid Films 2005; 490: 94-100. https://doi.org/10.1016/j.tsf.2005.04.006
  10. Yoo KS, Park SH, Kang JH. Nano-grained thin-film indium tin oxide gas sensors for H2 detection [J]. Sensors and Actuators B 2005; 108: 159-164. https://doi.org/10.1016/j.snb.2004.12.105
  11. Katranas GS, Meydan T, Ovari TA, Borza F. Applications of the bi-layer thin film sensor system for registering cardiorespiratory activity[J]. Sensors and Actuators A 2008; 142: 455-458. https://doi.org/10.1016/j.sna.2007.05.007
  12. Webster S, Binnie TD. PVDF sensors with low-temperature bonding techniques [J]. Sensors and Actuators A 1995; 61- 65. https://doi.org/10.1016/0924-4247(95)01010-X
  13. Sokhanvar S, Dargahi J, Packirisamy M. Influence of friction on piezoelectric sensors [J]. Sensors and Actuators A 2008; 141: 120-128. https://doi.org/10.1016/j.sna.2007.07.035
  14. Kohli M, Wuethrich C, Brooks K, et al. Pyroelectric thin-film sensor array[J]. Sensors and Actuators A 1997; 60: 147-153. https://doi.org/10.1016/S0924-4247(97)01484-2
  15. Daku BLF, Mohamed EMA, Prugger AF. A PVDF transducer for low-frequency acceleration measurements [J]. ISA Transactions 2004; 43: 319-328. https://doi.org/10.1016/S0019-0578(07)60151-7
  16. Chen Y, Ge W. Principle of modern sensor and application [M]. Beijing: Science press, 2007; pp. 144-155.
  17. Choi S, Jiang Z. A novel wearable sensor device with conductive fabric and PVDF film for monitoring cardiorespiratory signals [J]. Sensors and Actuators A 2006; 128: 317-326. https://doi.org/10.1016/j.sna.2006.02.012