A screen-printed flexible flow sensor

A thermal flow sensor was printed on a flexible plastic substrate using exclusively screen-printing techniques. The presented device was implemented with custom made screen-printed thermistors, which allows simple, cost-efficient production on a variety of flexible substrates while maintaining the t...

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Bibliographic Details
Published in:Measurement science & technology 2017-03, Vol.28 (5), p.55105
Main Authors: Moschos, A, Syrovy, T, Syrova, L, Kaltsas, G
Format: Article
Language:English
Subjects:
flexible electronics
flow sensor
screen printing
thick film
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Summary:A thermal flow sensor was printed on a flexible plastic substrate using exclusively screen-printing techniques. The presented device was implemented with custom made screen-printed thermistors, which allows simple, cost-efficient production on a variety of flexible substrates while maintaining the typical advantages of thermal flow sensors. Evaluation was performed for both static (zero flow) and dynamic conditions using a combination of electrical measurements and IR imaging techniques in order to determine important characteristics, such as temperature response, output repeatability, etc. The flow sensor was characterized utilizing the hot-wire and calorimetric principles of operation, while the preliminary results appear to be very promising, since the sensor was successfully evaluated and displayed adequate sensitivity in a relatively wide flow range.
ISSN:0957-0233
1361-6501
DOI:10.1088/1361-6501/aa5fa0