Using a magnetite/thermoplastic composite in 3D printing of direct replacements for commercially available flow sensors

Leigh, Simon J.; Purssell, C. P.; Billson, D.R.; Hutchins, David A.

doi:10.1088/0964-1726/23/9/095039

Cited by 65 publications

(37 citation statements)

References 16 publications

(26 reference statements)

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“…In Leigh et al (2014) layers of magnetite are printed in order to enable a Hall effect sensor to measure the rotation of a magnetised impeller in order to determine flow velocities. The work stresses the suitability of the technology to provide replacements for obsolete parts and shows better than original performance for the specific case studied.…”

Section: Magnetic Sensingmentioning

confidence: 99%

Embedded sensing: integrating sensors in 3-D printed structures

Dijkshoorn

Werkman

Welleweerd

et al. 2018

J. Sens. Sens. Syst.

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Abstract. Current additive manufacturing allows for the implementation of electrically interrogated 3-D printed sensors. In this contribution various technologies, sensing principles and applications are discussed. We will give both an overview of some of the sensors presented in literature as well as some of our own recent work on 3-D printed sensors. The 3-D printing methods discussed include fused deposition modelling (FDM), using multi-material printing and poly-jetting. Materials discussed are mainly thermoplastics and include thermoplastic polyurethane (TPU), both un-doped as well as doped with carbon black, polylactic acid (PLA) and conductive inks. The sensors discussed are based on biopotential sensing, capacitive sensing and resistive sensing with applications in surface electromyography (sEMG) and mechanical and tactile sensing. As these sensors are based on plastics they are in general flexible and therefore open new possibilities for sensing in soft structures, e.g. as used in soft robotics. At the same time they show many of the characteristics of plastics like hysteresis, drift and non-linearity. We will argue that 3-D printing of embedded sensors opens up exciting new possibilities but also that these sensors require us to rethink how to exploit non-ideal sensors.

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Section: Magnetic Sensingmentioning

confidence: 99%

Embedded sensing: integrating sensors in 3-D printed structures

Dijkshoorn

Werkman

Welleweerd

et al. 2018

J. Sens. Sens. Syst.

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“…Thus, the results in comparison to a standard design suggest strongly that it would be worthwhile for a prototype based on the Sierpinski tetrix to be built, in order to determine whether experimental results support these theoretical results, especially for fractal generation level five. Three-dimensional printing of electronic sensors and additively-manufactured piezoelectric devices are still emerging technologies [31,32,33]. However, the scope exists for tackling the construction of these three-dimensional piezoelectric structures.…”

Section: Resultsmentioning

confidence: 99%

A Mathematical Model of a Novel 3D Fractal-Inspired Piezoelectric Ultrasonic Transducer

Walker

Roach

2016

Sensors

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Piezoelectric ultrasonic transducers have the potential to operate as both a sensor and as an actuator of ultrasonic waves. Currently, manufactured transducers operate effectively over narrow bandwidths as a result of their regular structures which incorporate a single length scale. To increase the operational bandwidth of these devices, consideration has been given in the literature to the implementation of designs which contain a range of length scales. In this paper, a mathematical model of a novel Sierpinski tetrix fractal-inspired transducer for sensor applications is presented. To accompany the growing body of research based on fractal-inspired transducers, this paper offers the first sensor design based on a three-dimensional fractal. The three-dimensional model reduces to an effective one-dimensional model by allowing for a number of assumptions of the propagating wave in the fractal lattice. The reception sensitivity of the sensor is investigated. Comparisons of reception force response (RFR) are performed between this novel design along with a previously investigated Sierpinski gasket-inspired device and standard Euclidean design. The results indicate that the proposed device surpasses traditional design sensors.

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“…Incorporation of magnetic materials into a printable matrix enables printing of complex 3D shapes and structures with magnetic properties and fabrication of actuators, sensing devices, reinforced structures, and medical devices …”

Section: Magnetic Materialsmentioning

confidence: 99%

Hybrid Materials for Functional 3D Printing

Cooperstein

Keneth

Shukrun-Farrell

et al. 2018

Adv Materials Inter

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This review focuses on the development of hybrid materials based on inorganic–organic compositions with improved and new functionalities, and their utilization for 3D printing of various devices: magnetic materials, flexible and stretchable materials for conductive and shape‐memory devices, materials for photonics and optics, materials with enhanced mechanical properties, and dielectric and piezoelectric materials. Various methods of functional 3D printing are briefly discussed.

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Using a magnetite/thermoplastic composite in 3D printing of direct replacements for commercially available flow sensors

Abstract: Please refer to published version for the most recent bibliographic citation information. If a published version is known of, the repository item page linked to above, will contain details on accessing it.

Cited by 65 publications

References 16 publications

Embedded sensing: integrating sensors in 3-D printed structures

Embedded sensing: integrating sensors in 3-D printed structures

A Mathematical Model of a Novel 3D Fractal-Inspired Piezoelectric Ultrasonic Transducer

Hybrid Materials for Functional 3D Printing

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