scholarly journals Capacitance Response of Concave Well Substrate MEMS Double Touch Mode Capacitive Pressure Sensor: Robust Design, Theoretical Modeling, Numerical Simulation and Performance Comparison

2021 ◽  
Author(s):  
Guru Aathavan Alagu Uthaya Kumar ◽  
Sumit Kumar Jindal ◽  
SREEKANTH P K
Keyword(s):  
Pressure Sensor ◽  
Industrial Condition ◽  
Industrial Applications ◽  
Performance Comparison ◽  
Capacitive Pressure Sensor ◽  
Pressure Sensing ◽  
Flat Substrate ◽  
Small Deflection ◽  
Proposed Model ◽  
And Performance

Abstract Touch Mode Capacitive Pressure Sensor (TMCPS) is very suitable for industrial applications where pressure sensing is necessary because of their linearity, mechanical robust nature and large overload protection from harsh industrial condition. This work proposes an introduction of a notch in the concave substrate for further improvement of the sensitivity of the sensor. Small deflection mode is utilized for the mathematical analysis of the design proposed and MATLAB is utilized for all the software simulations. The sensitivity of the proposed model is very high compared to other models with flat substrate. The analysis and simulation show significant increase in sensitivity in touch mode. The pressure at which the value of the capacitance saturates is also much higher than the designs stated in the literature. The analysis of concave substrate Double Touch Mode Capacitive Pressure Sensor (DTMCPS) will be helpful in designing new sensor for performance increase and to evaluate the behaviour of it.

Analysis, Design, and Performance of a Capacitive Pressure Sensor IC

1986 ◽  
Vol BME-33 (2) ◽  
pp. 163-174 ◽  
Author(s):  
Michael J. S. Smith ◽  
Lyn Bowman ◽  
James D. Meindl
Keyword(s):  
Pressure Sensor ◽  
Capacitive Pressure Sensor ◽  
Analysis Design ◽  
And Performance

scholarly journals Capacitive pressure sensing with suspended graphene–polymer heterostructure membranes

Nanoscale ◽  
2017 ◽  
Vol 9 (44) ◽  
pp. 17439-17449 ◽  
Author(s):  
Christian Berger ◽  
Rory Phillips ◽  
Alba Centeno ◽  
Amaia Zurutuza ◽  
Aravind Vijayaraghavan
Keyword(s):  
Pressure Sensor ◽  
Capacitive Pressure Sensor ◽  
Large Array ◽  
Pressure Sensing ◽  
Suspended Graphene ◽  
Membrane Spanning

We describe the fabrication and characterisation of a capacitive pressure sensor formed by an ultra-thin graphene–polymer heterostructure membrane spanning a large array of micro-cavities each up to 30 μm in diameter with 100% yield.

scholarly journals Structure and Performance Attributes Optimization and Ranking of Gamma Irradiated Polymer Hybrids for Industrial Application

Polymers ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 47
Author(s):  
Suhail H. Serbaya ◽  
Emad H. Abualsauod ◽  
Mohammed Salem Basingab ◽  
Hatim Bukhari ◽  
Ali Rizwan ◽  
...  
Keyword(s):  
Young Modulus ◽  
High Strength ◽  
Industrial Applications ◽  
Gamma Dose ◽  
Decision Matrix ◽  
Suitability Index ◽  
Proposed Model ◽  
Dump Trucks ◽  
And Performance ◽  
Gamma Irradiated

The selection of suitable composite material for high-strength industrial applications, from the list of available alternatives, is a tedious task as it requires an optimized structural performance-based solution. This study aimed to optimize the concentration of fillers, i.e., vinyl tri-ethoxy silane and absorbed gamma-dose, to enhance the properties of an industrial scale polymer, i.e., ultra-high molecular weight polyethylene (UHMWPE). The UHMWPE hybrids, in addition to silane, were treated with (30, 65, and 100 kGy) gamma dose and then tested for ten application-specific structural and performance attributes. The relative importance of attributes based on an 11-point fuzzy conversation was used for establishing the material assessment graph and corresponding adjacency matrix. Afterwards, the normalized values of attributes were used to establish the decision matrix for each alternative. The normalization was performed after the identification of high obligatory valued (HOV) and low obligatory valued (LOV) attributes. After this, suitability index values (SIVs) were calculated for ranking the hybrids that revealed hybrids 65 kGy irradiated the hybrid as the best choice and ranked as first among the existing alternatives. The major responsible factors were higher oxidation strength, a dense cross-linking network, and elongation at break. The values of the aforementioned factors for 65 kGy irradiated hybrids were 0.24, 91, and 360 MPa, respectively, as opposed to 0.54, 75, and 324 MPa for 100 kGy irradiated hybrids, thus placing the latter in second place regarding higher values of Yield Strength and Young Modulus. Finally, it is believed that the reported results and proposed model in this study will improve preoperative planning as far as considering these hybrids for high-strength industrial applications including total joint arthroplasty, textile-machinery pickers, dump trucks lining ships, and harbors bumpers and sliding, etc.

The Influence of Cognitive and Affective Reactions to Feedback on Subsequent Goals

2010 ◽  
Vol 15 (2) ◽  
pp. 121-131 ◽  
Author(s):  
Remus Ilies ◽  
Timothy A. Judge ◽  
David T. Wagner
Keyword(s):  
Performance Feedback ◽  
Business School ◽  
Structural Equation ◽  
Emotional Reactions ◽  
Equation Model ◽  
Proposed Model ◽  
And Performance ◽  
Dispositional Measure ◽  
The Relationship ◽  
Reactions To Feedback

This paper focuses on explaining how individuals set goals on multiple performance episodes, in the context of performance feedback comparing their performance on each episode with their respective goal. The proposed model was tested through a longitudinal study of 493 university students’ actual goals and performance on business school exams. Results of a structural equation model supported the proposed conceptual model in which self-efficacy and emotional reactions to feedback mediate the relationship between feedback and subsequent goals. In addition, as expected, participants’ standing on a dispositional measure of behavioral inhibition influenced the strength of their emotional reactions to negative feedback.

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