Research of a Novel 3D Printed Strain Gauge Type Force Sensor

A 3D printed force sensor with a composite structure developed by combining digital light processing (DLP) based printing and inkjet printing technologies is described in this paper. The sensor has cost effectiveness and time-saving advantages compared to the traditional sensor manufacturing process...

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Main Authors: Mingjie Liu, Qi Zhang, Yiwei Shao, Chuanqi Liu, Yulong Zhao
Format: Article
Language:English
Published: MDPI AG 2018-12-01
Series:Micromachines
Subjects:
Online Access:http://www.mdpi.com/2072-666X/10/1/20
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spelling doaj-31a399b71e57474a9e6b139aa0a92e2b2020-11-24T23:58:37ZengMDPI AGMicromachines2072-666X2018-12-011012010.3390/mi10010020mi10010020Research of a Novel 3D Printed Strain Gauge Type Force SensorMingjie Liu0Qi Zhang1Yiwei Shao2Chuanqi Liu3Yulong Zhao4State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaA 3D printed force sensor with a composite structure developed by combining digital light processing (DLP) based printing and inkjet printing technologies is described in this paper. The sensor has cost effectiveness and time-saving advantages compared to the traditional sensor manufacturing process. During this work, the substrate of the force sensor was printed by a DLP based 3D printer using a transparent high-temperature resin, and the strain gauge of the force sensor was inkjet printed using poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT/PSS) conductive ink. Finite element (FE) simulation was conducted to find the print origin of the strain gauge. The relationship between the mechanical properties of the post-cured resin and the curing time was investigated and the resistance of the printed strain gauges was characterized to optimize process parameters. Afterward, the force sensor was characterized. Experimental results show that the sensitivity of the sensor is 2.92% N−1 and the linearity error is 3.1485% full scale (FS) within the range from 0 mN–160 mN, and the effective gauge factor of the strain gauge is about 0.98. The resistance drifting is less than 0.004 kΩ within an hour. These figures prove that the device can perform as a force sensor and 3D printing technology may have great applied potential in sensor fabrication.http://www.mdpi.com/2072-666X/10/1/203D printed force sensordigital light processinginkjet printingsensor fabrication
collection DOAJ
language English
format Article
sources DOAJ
author Mingjie Liu
Qi Zhang
Yiwei Shao
Chuanqi Liu
Yulong Zhao
spellingShingle Mingjie Liu
Qi Zhang
Yiwei Shao
Chuanqi Liu
Yulong Zhao
Research of a Novel 3D Printed Strain Gauge Type Force Sensor
Micromachines
3D printed force sensor
digital light processing
inkjet printing
sensor fabrication
author_facet Mingjie Liu
Qi Zhang
Yiwei Shao
Chuanqi Liu
Yulong Zhao
author_sort Mingjie Liu
title Research of a Novel 3D Printed Strain Gauge Type Force Sensor
title_short Research of a Novel 3D Printed Strain Gauge Type Force Sensor
title_full Research of a Novel 3D Printed Strain Gauge Type Force Sensor
title_fullStr Research of a Novel 3D Printed Strain Gauge Type Force Sensor
title_full_unstemmed Research of a Novel 3D Printed Strain Gauge Type Force Sensor
title_sort research of a novel 3d printed strain gauge type force sensor
publisher MDPI AG
series Micromachines
issn 2072-666X
publishDate 2018-12-01
description A 3D printed force sensor with a composite structure developed by combining digital light processing (DLP) based printing and inkjet printing technologies is described in this paper. The sensor has cost effectiveness and time-saving advantages compared to the traditional sensor manufacturing process. During this work, the substrate of the force sensor was printed by a DLP based 3D printer using a transparent high-temperature resin, and the strain gauge of the force sensor was inkjet printed using poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT/PSS) conductive ink. Finite element (FE) simulation was conducted to find the print origin of the strain gauge. The relationship between the mechanical properties of the post-cured resin and the curing time was investigated and the resistance of the printed strain gauges was characterized to optimize process parameters. Afterward, the force sensor was characterized. Experimental results show that the sensitivity of the sensor is 2.92% N−1 and the linearity error is 3.1485% full scale (FS) within the range from 0 mN–160 mN, and the effective gauge factor of the strain gauge is about 0.98. The resistance drifting is less than 0.004 kΩ within an hour. These figures prove that the device can perform as a force sensor and 3D printing technology may have great applied potential in sensor fabrication.
topic 3D printed force sensor
digital light processing
inkjet printing
sensor fabrication
url http://www.mdpi.com/2072-666X/10/1/20
work_keys_str_mv AT mingjieliu researchofanovel3dprintedstraingaugetypeforcesensor
AT qizhang researchofanovel3dprintedstraingaugetypeforcesensor
AT yiweishao researchofanovel3dprintedstraingaugetypeforcesensor
AT chuanqiliu researchofanovel3dprintedstraingaugetypeforcesensor
AT yulongzhao researchofanovel3dprintedstraingaugetypeforcesensor
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