INKtelligent printed strain gauges

Abstract Strain gauges for non-destructive testing could successfully deposited by INKtelligent printing®. Metal strain gauges are fabricated by Aerosol Jet® technology, starting with deposition of a polymer isolation layer, followed by a printed metal layer and finally an encapsulation to protect the printed sensor. Characterizations of printed and sintered sensors show a good densification of the printed material which allows high electrical conductivity up to 70% of bulk value. Performance tests of printed sensors show a reproducible and reliable functionality in terms of strain measurements.

[1]  Horst Kuchling,et al.  Taschenbuch der Physik , 2022 .

[2]  G. Kovacs.  Micromachined Transducers Sourcebook , 1998 .

[3]  Ullrich Scherf,et al.  Direct Ink‐Jet Printing of Ag–Cu Nanoparticle and Ag‐Precursor Based Electrodes for OFET Applications , 2007 .

[4]  D. Vaselaar,et al.  Direct-Write Vapor Sensors on FR4 Plastic Substrates , 2007, IEEE Sensors Journal.

[5]  M. Kardos,et al.  Mesoscale Deposition Technology for Electronics Applications , 2005, Polytronic 2005 - 5th International Conference on Polymers and Adhesives in Microelectronics and Photonics.

[6]  K. Bethe.  The scope of the strain gage principle , 1989, Proceedings. VLSI and Computer Peripherals. COMPEURO 89.