A Hybrid Vibration Powered Microelectromechanical Strain Gauge

Jia, Yu; Do, Cuong; Zou, Xudong; Seshia, Ashwin A.

doi:10.1109/jsen.2015.2479295

Cited by 11 publications

(9 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For instance, stretch sensors can be mounted on a wearable device such as a prosthetic hand, data glove, or exoskeleton to provide vital information on the angular orientation of the joints, as illustrated in Figure 1. The use of traditional metallic and semiconducting techniques in this sensing field, though previously demonstrated [1][2][3], has limited potential due to the amount of stretch/strain that the device can undergo before fatigue, which in some areas might be well beyond the traditional strain sensor's capabilities. The term stretch and strain will be interchangeably used here.…”

Section: Introductionmentioning

confidence: 99%

The Development of Highly Flexible Stretch Sensors for a Robotic Hand

et al. 2018

View full text Add to dashboard Cite

Demand for highly compliant mechanical sensors for use in the fields of robotics and wearable electronics has been constantly rising in recent times. Carbon based materials, and especially, carbon nanotubes, have been widely studied as a candidate piezoresistive sensing medium in these devices due to their favorable structural morphology. In this paper three different carbon based materials, namely carbon black, graphene nano-platelets, and multi-walled carbon nanotubes, were utilized as large stretch sensors capable of measuring stretches over 250%. These stretch sensors can be used in robotic hands/arms to determine the angular position of joints. Analysis was also carried out to understand the effect of the morphologies of the carbon particles on the electromechanical response of the sensors. Sensors with gauge factors ranging from one to 1.75 for strain up to 200% were obtained. Among these sensors, the stretch sensors with carbon black/silicone composite were found to have the highest gauge factor while demonstrating acceptable hysteresis in most robotic hand applications. The highly flexible stretch sensors demonstrated in this work show high levels of compliance and conformance making them ideal candidates as sensors for soft robotics.

show abstract

Section: Introductionmentioning

confidence: 99%

The Development of Highly Flexible Stretch Sensors for a Robotic Hand

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Though, for consistency in order to enable comparison, this load resistance was fixed. For realistic applications, a dynamic control system needs to be employed to enable maximum power point tracking, which is available with commercial power conditioning elec- tronic chips such as LTC3588 that is popularly used for vibration energy harvesting [11,41].…”

Section: Vibration Data Responsementioning

confidence: 99%

Multiphysics vibration FE model of piezoelectric macro fibre composite on carbon fibre composite structures

Jia

Wei

et al. 2019

Composites Part B: Engineering

Self Cite

View full text Add to dashboard Cite

This paper presents a finite element (FE) model developed using commercial FE software COMSOL to simulate the multiphysical process of pieozoelectric vibration energy harvesting (PVEH), involving the dynamic mechanical and electrical behaviours of piezoelectric macro fibre composite (MFC) on carbon fibre composite structures. The integration of MFC enables energy harvesting, sensing and actuation capabilities, with applications found in aerospace, automotive and renewable energy. There is an existing gap in the literature on modelling the dynamic response of PVEH in relation to real-world vibration data. Most simulations were either semi-analytical MATLAB models that are geometry unspecific, or basic FE simulations limited to sinusoidal analysis. However, the use of representative environment vibration data is crucial to predict practical behaviour for industrial development. Piezoelectric device physics involving solid mechanics and electrostatics were combined with electrical circuit defined in this FE model. The structure was dynamically excited by interpolated vibration data files, while orthotropic material properties for MFC and carbon fibre composite were individually defined for accuracy. The simulation results were validated by experiments with <10% deviation, providing confidence for the proposed multiphysical FE model to design and optimise PVEH smart composite structures.

show abstract

“…The domain for such a low-profile, yet intrinsically flexible, is surging in wearable devices, such as prosthetic hands and wired gloves with artificial intelligence, to report the angular orientation of the joints. This trend has become widespread since conventional methods are limited by the strength of stretch before fatigue [38][39][40]. There is a high need for replacing traditional approaches for mechanical perturbation sensing using optical, for example, optical interferometry, or magnetic elements, for example, Hall-effect encoders, with highly accurate, low-cost, compact, and low-profile methods that are integrable with CMOS/MEMS technology.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Ultrahigh Sensitive Microwave Planar Sensor to Monitor Mechanical Motion: Rotation, Displacement, and Stretch

Abdolrazzaghi

Daneshmand

2020

Sensors

View full text Add to dashboard Cite

This paper presents a novel planar multifunctional sensor that is used to monitor physical variations in the environment regarding distance, angle, and stretch. A double split-ring resonator is designed at 5.2 GHz as the core operating sensor. Another identical resonator is placed on top of the first one. The stacked configuration is theoretically analyzed using an electric circuit model with a detailed parameter extraction discussion. This design is first employed as a displacement sensor, and a compelling high sensitivity of 500 MHz/mm is observed for a wide dynamic range of 0-5 mm. Then, in another configuration, the stacked design is used as a rotation sensor that results in a high sensitivity of 4.5 MHz/ ° for the full range of 0-180 ° . In addition, the stacked resonator is utilized as a strain detector, and a 0–30% stretch is emulated with a linear sensitivity of 12 MHz/%. Measurements are well in congruence with simulated results, which proves the accurate functionality of the sensor in tracking mechanical deformations, all in a single compact contraption.

show abstract

A Hybrid Vibration Powered Microelectromechanical Strain Gauge

Cited by 11 publications

References 23 publications

The Development of Highly Flexible Stretch Sensors for a Robotic Hand

The Development of Highly Flexible Stretch Sensors for a Robotic Hand

Multiphysics vibration FE model of piezoelectric macro fibre composite on carbon fibre composite structures

Multifunctional Ultrahigh Sensitive Microwave Planar Sensor to Monitor Mechanical Motion: Rotation, Displacement, and Stretch

Contact Info

Product

Resources

About