Experimental Investigation into the Dynamics of a Radially Contracting Actuator with Embedded Sensing Capability

Dang, Yu; Devaraj, Harish; Stommel, Martin; Cheng, Leo K.; McDaid, Andrew; Wang, Xu

doi:10.1089/soro.2019.0064

Cited by 15 publications

(8 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Preliminary studies focused on the actuator design and theoretical modeling [141,142]. A custom-made soft sensor was integrated into the inner surface of the actuator without affecting the actuator compliance [143]. The sensor is an elastomer filled with electrically conductive carbon particles; the electrical resistance variation of the sensor was related to the radial deformation of the actuator, enabling closed-loop control.…”

Section: Digestive Systemmentioning

confidence: 99%

Soft robotics for physical simulators, artificial organs and implantable assistive devices

et al. 2023

View full text Add to dashboard Cite

In recent years, soft robotics technologies enabled the development of a new generation of biomedical devices. The combination of elastomeric materials with tunable properties and muscle-like motions paved the way toward more realistic phantoms and innovative soft active implants as artificial organs or assistive mechanisms. This review collects the most relevant studies in the field, giving some insights about their distribution in the past ten years, and their level of development, and opening a discussion about the most commonly employed materials and actuating technologies. The reported results show some promising trends, highlighting that the soft robotics approach can help replicate specific material characteristics, in the case of static or passive organs, but also reproduce peculiar natural motion patterns for the realization of dynamic phantoms or implants. At the same time, some important challenges still need to be addressed. However, by joining forces with other research fields and disciplines, it will be possible to get one step closer to the development of complex, active, self-sensing and deformable structures able to replicate as closely as possible the typical properties and functionalities of our natural body organs.

show abstract

Section: Digestive Systemmentioning

confidence: 99%

Soft robotics for physical simulators, artificial organs and implantable assistive devices

et al. 2023

View full text Add to dashboard Cite

show abstract

“…A sensory system can be a vital perspective for analysing the interactions between the surface and other elements that might influence the contraction. Though, it is very challenging to design an embedded sensor that can deform largely to accommodate the contraction of the soft ring actuators [35]-solving this problem by introducing sensors that adapt to the large deformation without influencing the performance of the robots. Embedded IOP Publishing doi:10.1088/1757-899X/1261/1/012007 9 sensors in robots can present the forces that occur from the interactions, which aid in understanding the embodied intelligence and quantifying its performance.…”

Section: The Functionality Of Ring Actuatorsmentioning

confidence: 99%

Bio-Inspired Robots Imitating Human Organs with Embodied Intelligence Behaviour

Hashem

Iida

2022

IOP Conf. Ser.: Mater. Sci. Eng.

Self Cite

View full text Add to dashboard Cite

Soft robotics is an emerging field that introduces promising engineering methods that replicate biological behaviours. Soft robotics aims to obtain a delicate interaction with their environment and be adaptable in different situations. Using the morphology and materials in robotics design is recognised as an embodied intelligence of the system. This method provides new ideas other than classic engineering strategies; it can translate biological behaviour into an engineering context. Embodied intelligence introduces potential ways to replicate human organs' motor activities with soft-bodied simulators. Researchers are looking for a test environment that imitates the complex human organs functionalities to advance the knowledge of the human body. Many recent diseases were discovered, such as stomach dysrhythmia. It is believed that a test environment that can replicate such illnesses can introduce a faster solution to patients suffering from those illnesses. This chapter will discuss soft robots that emulate human organs using embodied intelligence in their morphology for simpler control systems and continuous actuation behaviour.

show abstract

“…Many materials for soft strain gauges have been developed, including Ag nanowire aerogels [32], stick-on hydrogel [33], cellulose nanocrystalline hydrogel [34], carbon black/ Ecoflex TM (Smooth-On, Inc., Macungie, PA, USA) composite [35], carbon nanotube/styrenebutadiene-styrene [36], as well as carbon black/silicone composite [19]. Herein, a carbon/silicone nanocomposite developed in our previous research [37] will be printed onto the conversion structure as strain gauges, owing to its sufficient sensitivity, good linearity, and excellent repeatability for a strain up to 50%, as well as its low cost and compatibility with silicone.…”

Section: Hysteresis Of the Materials For Strain Gaugementioning

confidence: 99%

Carbon/Silicone Nanocomposite-Enabled Soft Pressure Sensors with a Liquid-Filled Cell Structure Design for Low Pressure Measurement

Wang

Tao

2021

Sensors

View full text Add to dashboard Cite

In the fields of humanoid robots, soft robotics, and wearable electronics, the development of artificial skins entails pressure sensors that are low in modulus, high in sensitivity, and minimal in hysteresis. However, few sensors in the literature can meet all the three requirements, especially in the low pressure range (<10 kPa). This article presents a design for such pressure sensors. The bioinspired liquid-filled cell-type structural design endows the sensor with appropriate softness (Young’s modulus < 230 kPa) and high sensitivity (highest at 0.7 kPa−1) to compression forces below 0.65 N (6.8 kPa). The low-end detection limit is ~0.0012 N (13 Pa), only triple the mass of a bee. Minimal resistance hysteresis of the pressure sensor is 7.7%. The low hysteresis is attributed to the study on the carbon/silicone nanocomposite, which reveals the effect of heat treatment on its mechanical and electromechanical hysteresis. Pressure measurement range and sensitivity of the sensor can be tuned by changing the structure and strain gauge parameters. This concept of sensor design, when combined with microfluidics technology, is expected to enable soft, stretchable, and highly precise touch-sensitive artificial skins.

show abstract

Experimental Investigation into the Dynamics of a Radially Contracting Actuator with Embedded Sensing Capability

Cited by 15 publications

References 42 publications

Soft robotics for physical simulators, artificial organs and implantable assistive devices

Soft robotics for physical simulators, artificial organs and implantable assistive devices

Bio-Inspired Robots Imitating Human Organs with Embodied Intelligence Behaviour

Carbon/Silicone Nanocomposite-Enabled Soft Pressure Sensors with a Liquid-Filled Cell Structure Design for Low Pressure Measurement

Contact Info

Product

Resources

About