Evaluation of electrical resistance of electrodes with conductive ink for agriculture applications using computer technology
Citation:Novák V., Volf J., Novák D., Vrbík V., Ryženko V., Stebila J. (2022): Evaluation of electrical resistance of electrodes with conductive ink for agriculture applications using computer technology. Res. Agr. Eng., 68: 194–200.
The article presents the ongoing research, which aims to select suitable electrodes and mixtures of conductive inks, which will be used as a converter between the pressure and electrical quantities in the design of planar pressure transducers. In the described research, we continue our previous work and the work of other authors who have previously dealt with the properties of conductive inks and electrodes. Due to the only partial results in the given field, we decided to perform an extensive and original measurement of a total of 172 combinations of different electrode sizes, various conductive ink mixtures and ink layer thicknesses. Thanks to this, it will be possible, in the future, to select a suitable combination of electrodes and inks when designing pressure sensors for industrial and agricultural applications without the need to perform time-consuming preparatory measurements. The aim of the measurements is also to determine the usable working range of the pressures and the corresponding sensitivity for certain combinations of electrodes and inks, and to also exclude those variants which are unsuitable for the given purposes. This paper presents the introductory part of the measurements, which aims to verify the methodology of the measurements on a test plate at robotised workspace that is connected to a PC in real time via the program LabView. The described introductory measurements proved our methodology to be suitable to the given purpose; however, there minor problems emerged with the actual working pressure range of the transducer and the consequential necessary adjustments of the control program.
conductive ink; electrode; LabView; pressure; tactile sensor; tyre
Barman S., Guha S.K. (2006): Analysis of a new combined stretch and pressure sensor for internal nodule palpation. Sensors and Actuators A: Physical, 125: 210–216.
https://doi.org/10.1016/j.sna.2005.07.010
Bílek J., Neuberger P., Volf J., Prikner P. (2012): Determination size of tire contact area on a hard surface by the electronic pressure sensor. Agritech Science, 2: 1–4. (in Czech)
Dimitriou E., Michailidis N. (2021): Printable conductive inks used for the fabrication of electronics: An overview. Nanotechnology, 32: 502009.
https://doi.org/10.1088/1361-6528/abefff
Gao L., Zhu C., Li L., Zhang C., Liu J., Yu H., Huang W. (2019): All paper-based flexible and wearable piezoresistive pressure sensor. ACS Applied Materials and Interfaces, 11: 25034–25042.
https://doi.org/10.1021/acsami.9b07465
Giovanelli D., Farella E. (2016): Force sensing resistor and evaluation of technology for wearable body pressure sensing. Journal of Sensors, 2016: 9391850.
https://doi.org/10.1155/2016/9391850
Koder P., Novak V., Ryzhenko V., Hruby D., Volf J., Novak D. (2018): Plantograf V18 – New construction and properties. Agronomy Research, 16 (Special issue 1): 1085–1094.
Maddipatla D., Narakathu B., Ali M., Chlaihawi A., Atashbar M. (2017): Development of a novel carbon nanotube based printed and flexible pressure sensor. In: 12th IEEE Sensors Applications Symposium. Glassboro, March 13–15, 2017: 7894034.
Seo S., Kim S., Jung J., Ma R., Baik S., Moon H. (2016): Flexible touch sensors made of two layers of printed conductive flexible adhesives. Sensors, 16: 1515.
https://doi.org/10.3390/s16091515
Souza F.G., Michel R.C., Soares B.G. (2005): A methodology for studying the dependence of electrical resistivity with pressure in conducting composites. Polymer Testing, 24: 998–1004.
https://doi.org/10.1016/j.polymertesting.2005.08.001
Volf J., Svatos J., Koder P., Novak V., Papezova S., Ryzhenko V., Hurtecak J. (2015): Pressure distribution measurement system PLANTOGRAF V12 and its electrodes configuration. Agronomy Research, 13: 732–738.
Volf J., Novak D., Novak V., Papezova S. (2019): Evaluation of foil transducers and their use in tactile sensors. Measurement, 136: 573–578.
https://doi.org/10.1016/j.measurement.2018.09.060
