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Dynamic Measurements Using FDM 3D-Printed Embedded Strain Sensors.
Marco Maurizi1, Janko Slavič2, Filippo Cianetti3
1Department of Engineering, University of Perugia, Goffredo Duranti 93, 06125 Perugia, Italy. marcomaurizi06@gmail.com.
Sensors (Basel, Switzerland)
|June 20, 2019
Summary
This study explores dynamic measurements using 3D-printed strain sensors made from conductive Polylactic Acid (PLA). Results show these sensors offer reliable performance for dynamic strain sensing in various applications.
Area of Science:
- Materials Science
- Engineering
- Sensor Technology
Background:
- 3D-printing enables co-printing of sensory elements, but dynamic performance remains under-researched.
- Conductive Polylactic Acid (PLA) is a promising material for embedded strain sensors.
Purpose of the Study:
- To investigate the dynamic performance of 3D-printed smart structures with embedded strain sensors.
- To evaluate the suitability of conductive PLA for dynamic strain measurements.
Main Methods:
- Developed smart 3D structures with embedded conductive PLA strain sensors.
- Investigated piezoresistivity, temperature effects, linearity, dynamic range, electromagnetic sensitivity, and frequency response.
- Utilized quasi-static calibration for dynamic measurements.
Main Results:
- Temperature effects on the sensor were found to be negligible.
- The sensor exhibited linear behavior when the structure's response was linear.
- The dynamic range commenced around 30 μϵ.
- Broadband performance extended to a few kHz, dependent on sensor size.
Conclusions:
- 3D-printed conductive PLA strain sensors show potential for dynamic measurements.
- These sensors could be viable alternatives to piezo-crystal sensors in specific applications.
- Further research supports the use of smart 3D-printed systems in dynamic sensing.
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