Performance Evaluation of Strain Gauge Printed Using Automatic Fluid Dispensing System on Conformal Substrates

International Research and Innovation Summit 2017

Khairilhijra Khirotdin, Rd.^1 ; Ngadiron, Mohamad Faridzuan^1 ; Mahadzir, Muhammad Adzeem^1 ; Hassan, Nurhafizzah^2

Faculty of Mechanical and Manufacturing Engineering, University of Tun Hussein Onn Malaysia, Parit Raja, Johor, Batu Pahat

86400, Malaysia^1

Faculty of Engineering Technology, University of Tun Hussein Onn Malaysia, Parit Raja, Johor, Batu Pahat

86400, Malaysia^2

关键词: Curing temperature;    Curvature radii;    Curvature radius;    Dispensing systems;    Performance evaluations;    Printing speed;    Printing techniques;    Process parameters;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/226/1/012019/pdf
DOI  :  10.1088/1757-899X/226/1/012019

来源: IOP

【 摘 要 】

Smart textiles require flexible electronics that can withstand daily stresses like bends and stretches. Printing using conductive inks provides the flexibility required but the current printing techniques suffered from ink incompatibility, limited of substrates to be printed with and incompatible with conformal substrates due to its rigidity and low flexibility. An alternate printing technique via automatic fluid dispensing system is proposed and its performances on printing strain gauge on conformal substrates were evaluated to determine its feasibility. Process parameters studied including printing speed, deposition height, curing time and curing temperature. It was found that the strain gauge is proven functional as expected since different strains were induced when bent on variation of bending angles and curvature radiuses from designated bending fixtures. The average change of resistances were doubled before the strain gauge starts to break. Printed strain gauges also exhibited some excellence elasticity as they were able to resist bending up to 70° angle and 3 mm of curvature radius.