Basavaprabhu Sheeparamatti - Academia.edu (original) (raw)

Papers by Basavaprabhu Sheeparamatti

Sensing and imaging, Dec 15, 2021

Gear teeth failure due to fatigue is a common phenomenon observed. Even a slight reduction in the... more Gear teeth failure due to fatigue is a common phenomenon observed. Even a slight reduction in the root tensile stress results in great increase in the fatigue life of a gear. If gear fails in tensile fatigue, the results are catastrophic and occur with little or no warnings. Therefore for all the reasons mentioned above, this work is of more practical importance. For many years, gear design has been improved by using improved material, hardening surfaces with heat treatment and carburization, and shot penning to improve surface finish etc. Few more efforts have been made to improve the durability and strength by altering the pressure angle, using the asymmetric teeth, altering the geometry of root fillet curve and so on. Most of the above methods do not guarantees the interchangeability of the existing gear systems. This work presents the possibilities of using the stress redistribution techniques by introducing the stress relieving features in the stressed zone to the advantage of ...

IETE Technical Review

Nanotechnology is molecular manipulation. Any branch of technology that results from our ability ... more Nanotechnology is molecular manipulation. Any branch of technology that results from our ability to control and manipulate matter on length scales of 1-100 nm can be treated as nanotechnology. Nanotechnology is not new to nature. Nature has been doing molecular manipulation to build its systems like plants and animals. After observing and understanding the fundamental design principles of natural products, one gets inspiration to build his own nanoproducts. This paper stimulates a nanotechnician or a student to study nanotechnology and to think inline with nature, since it has been a great nanoscientist and nanotechnologist.

International Journal of Applied Evolutionary Computation

This article describes how modeling is an integral part of design and development of any system t... more This article describes how modeling is an integral part of design and development of any system that provides the theoretical characterization of the system and helps in understanding the relations between various parameters of the system, before the system is developed. The capability of an Artificial Neural Network (ANN) to model the complex relations between a set of inputs and outputs is exploited to model the motional resistance and resonance frequency for a contour mode disk resonator. The solution was to develop a multilayer feed forward neural network. The data set required to train the ANN is obtained by developing an electrical equivalent model and through the MEMS simulation software Coventorware. The network is trained using a Levenberg Marquardt algorithm. The number of hidden layers and the number of neurons in each hidden layer is optimized using a genetic algorithm. The ANN model developed an efficient model of the motional resistance and resonance frequency of the d...

MEMS(Micro-ElectroMechanical Systems) pressure sensors are designed to operate in linear range an... more MEMS(Micro-ElectroMechanical Systems) pressure sensors are designed to operate in linear range and presently the most widely used devices. MEMS pressure sensors have gained popularity in automotive, biomedical and industrial applications. In this paper, the design and simulation of capacitive, piezoelectric and piezoresistive MEMS pressure sensors are proposed. The piezoelectric sensor is composed of Lead Zirconate Titanate(PZT-5A), piezoresistive pressure sensor is composed of n-Silicon(single-crystal, lightly doped) and p-Silicon(single-crystal, lightly doped), the capacitive pressure sensor is composed of SiC(6H) these pressure sensors deflects due to applied pressure from 0 to 2MPa over it are accounted. The modelling and simulation is carried out for different MEMS

IETE Technical Review

Nanotechnology is molecular manipulation. Any branch of technology that results from our ability ... more Nanotechnology is molecular manipulation. Any branch of technology that results from our ability to control and manipulate matter on length scales of 1-100 nm can be treated as nanotechnology. Nanotechnology is not new to nature. Nature has been doing molecular manipulation to build its systems like plants and animals. After observing and understanding the fundamental design principles of natural products, one gets inspiration to build his own nanoproducts. This paper stimulates a nanotechnician or a student to study nanotechnology and to think inline with nature, since it has been a great nanoscientist and nanotechnologist.

Employing the MEMS technology, high sensitivities and resolutions have been achieved. Capacitive ... more Employing the MEMS technology, high sensitivities and resolutions have been achieved. Capacitive sensing uses the diaphragm deformation-induced capacitance change. In this paper, the design and simulation of conventional slotted and touch mode MEMS capacitive pressure sensor is proposed. The designed sensors are composed of a polysilicon diaphragm that deflects due to pressure applied over it, is accounted for modeling. The simulation results shows that the slotted MEMS capacitive pressure sensor achieves good sensitivity where as the touch mode MEMS capacitive pressure sensor achieves good linearity and large operating pressure range. The proposed MEMS capacitive pressure sensor demonstrated with diaphragm of side length 20 μm, gap depth 2 m is being modelled. The sensor exhibit a linear response for the pressure applied between 0 to 50 MPa. The simulation is carried out for different types of MEMS capacitive pressure sensor using COMSOL Multiphysics.

IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society, 2011

... Haslina Jaafar, Othman Sidek, Azman Miskam and Shukri Korakkottil, American J. of Engineering... more ... Haslina Jaafar, Othman Sidek, Azman Miskam and Shukri Korakkottil, American J. of Engineering and Applied Sciences 2 (4), 2009-ISSN ... Abstract |Full Text: PDF (884KB); Hamood UrRahman,Tim Hesketh, Rodica Ramer, IEEE-ICET 2008, "Low Actuation Voltage RF MEMS ...

2014 International Conference on Electronic Systems, Signal Processing and Computing Technologies, 2014

ABSTRACT Micro cantilever based biochemical sensors have been around for a quite some time. Thoug... more ABSTRACT Micro cantilever based biochemical sensors have been around for a quite some time. Though they are limited to simple rectangular type of sensing surface, they are quite capable in detecting agents of interest. However one can improve their performance by enhancing their mass sensitivity. In this paper, a numerical study is performed to assess the influence of micro cantilever geometry on its resonance frequency. The change in resonance frequency can be used to detect the added mass. Thus one can use these results to improve the performance of micro cantilever based sensors. ANSYS/Multi physics and COMSOL/Multi physics analysis for frequency is carried out.

Microcantilevers are the basic and fundamental MEMS based structures used in microsystems. Microc... more Microcantilevers are the basic and fundamental MEMS based structures used in microsystems. Microcantilevers have been used both as sensors and actuators. In this paper, modeling and simulation details of a microcantilever for thermal actuation are presented. The advantage of this actuator is, the tip of this actuator which actually drives some other object doesn't gets heated and hence can be used in any environment safely. The main objective of this work is to investigate the nature of deflection of microcantilever based actuator for the applied potential difference across the base pads. In this device, two microcantilevers of different dimensions are considered and when these are subjected to same current, deflect differently. The current density in the thin arm is greater than the current density in the thick arm. Therefore, the thin arm heats up more than the thick arm, which makes the thin arm to bend. Thus, temperature produces thermal strain and thermally induced deflecti...

IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society, 2011

ABSTRACT Microcantilevers are the basic and fundamental structures used in microsystems for both ... more ABSTRACT Microcantilevers are the basic and fundamental structures used in microsystems for both sensing and actuating applications. In this paper, modeling, simulation and optimization details of a microcantilever based thermal actuator is presented. The advantage of this actuator is, the tip of this actuator which actually drives some other object doesn't get heated and hence can be used in any environment safely. The main objective of this work is to investigate the nature of deflection of microcantilever based actuator for the applied potential difference across the base pads and to find the optimized dimensions for maximum displacement. In this device, two microcantilevers of different dimensions are considered and when these are subjected to same current, deflect differently. This turns the microstructure into a thermal actuator. Then Genetic Algorithm (GA) optimization technique along with ANN is used for finding optimum length of shorter arm of electrothermal actuator for maximum deflection and minimum applied voltage. An ANN simulator is used to generate the deflections for various values of applied voltages and the short arm lengths further the optimal values are found using a Genetic Algorithm using newly derived chromosome representation and crossover operators. This neuro-genetic optimization is realized using MATLAB.

IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics, 2006

Double buffering is essential in complex, real time data acquisition and analysis systems. It is ... more Double buffering is essential in complex, real time data acquisition and analysis systems. It is also a programming technique used to create smooth flowing graphics. Double buffering uses two buffers to speed up a computer that can overlap I/O with processing. While the data in one buffer is being processed, the next set of data is read into the other

Journal of Physics: Conference Series, 2006

ABSTRACT Bio-Micro Electro Mechanical Systems/Nano Electro Mechanical Systems include a wide vari... more ABSTRACT Bio-Micro Electro Mechanical Systems/Nano Electro Mechanical Systems include a wide variety of sensors, actuators, and complex micro/nano devices for biomedical applications. Recent advances in biosensors have shown that sensors based on bending of microfabricated cantilevers have potential advantages over earlier used detection methods. Thus, a simple cantilever beam can be used as a sensor for biomedical, chemical and environmental applications. Here, microfabricated multilayered cantilever beam is exposed to sensing environment. Lower layer being pure structural silicon or polymer and upper layer is of polymer with antigen/antibody immobilized in it. Obviously, it has an affinity towards its counterpart i.e. antibody/antigen. In the sensing environment, if counter elements exists, they get captured by this sensing beam head, and the cantilever beam deflects. This deflection can be sensed and the presence of counter elements in the environment can be predicted. In this work, a finite element model of a biosensor for sensing antibody/antigen reaction is developed and simulated using ANSYS/Multiphysics. The optimal dimensions of the microcantilever beam are selected based on permissible deflection range with the aid of MATLAB. In the model analysis, both weight and surface stress effects on the cantilever are considered. Approximate weights are taken into account because of counter elements, considering their molecular weight and possible number of elements required for sensing. The results obtained in terms of lateral deflection are presented.

Journal of Physics: …, 2006

... International Conference on Engineering Education (Manchester, UK 18-21 August 2002) [2] BG S... more ... International Conference on Engineering Education (Manchester, UK 18-21 August 2002) [2] BG Sheeparamatti, MS Hebbal and PV Hungund 2005 ... Microelectronics symposium (Boise, Idaho, June 30-July 2, 2003) [5] CM Javalagi, SA Angadi, GS Basavaprabhu 2002 Synergy ...

Sensing and imaging, Dec 15, 2021

Gear teeth failure due to fatigue is a common phenomenon observed. Even a slight reduction in the... more Gear teeth failure due to fatigue is a common phenomenon observed. Even a slight reduction in the root tensile stress results in great increase in the fatigue life of a gear. If gear fails in tensile fatigue, the results are catastrophic and occur with little or no warnings. Therefore for all the reasons mentioned above, this work is of more practical importance. For many years, gear design has been improved by using improved material, hardening surfaces with heat treatment and carburization, and shot penning to improve surface finish etc. Few more efforts have been made to improve the durability and strength by altering the pressure angle, using the asymmetric teeth, altering the geometry of root fillet curve and so on. Most of the above methods do not guarantees the interchangeability of the existing gear systems. This work presents the possibilities of using the stress redistribution techniques by introducing the stress relieving features in the stressed zone to the advantage of ...

IETE Technical Review

Nanotechnology is molecular manipulation. Any branch of technology that results from our ability ... more Nanotechnology is molecular manipulation. Any branch of technology that results from our ability to control and manipulate matter on length scales of 1-100 nm can be treated as nanotechnology. Nanotechnology is not new to nature. Nature has been doing molecular manipulation to build its systems like plants and animals. After observing and understanding the fundamental design principles of natural products, one gets inspiration to build his own nanoproducts. This paper stimulates a nanotechnician or a student to study nanotechnology and to think inline with nature, since it has been a great nanoscientist and nanotechnologist.

International Journal of Applied Evolutionary Computation

This article describes how modeling is an integral part of design and development of any system t... more This article describes how modeling is an integral part of design and development of any system that provides the theoretical characterization of the system and helps in understanding the relations between various parameters of the system, before the system is developed. The capability of an Artificial Neural Network (ANN) to model the complex relations between a set of inputs and outputs is exploited to model the motional resistance and resonance frequency for a contour mode disk resonator. The solution was to develop a multilayer feed forward neural network. The data set required to train the ANN is obtained by developing an electrical equivalent model and through the MEMS simulation software Coventorware. The network is trained using a Levenberg Marquardt algorithm. The number of hidden layers and the number of neurons in each hidden layer is optimized using a genetic algorithm. The ANN model developed an efficient model of the motional resistance and resonance frequency of the d...

MEMS(Micro-ElectroMechanical Systems) pressure sensors are designed to operate in linear range an... more MEMS(Micro-ElectroMechanical Systems) pressure sensors are designed to operate in linear range and presently the most widely used devices. MEMS pressure sensors have gained popularity in automotive, biomedical and industrial applications. In this paper, the design and simulation of capacitive, piezoelectric and piezoresistive MEMS pressure sensors are proposed. The piezoelectric sensor is composed of Lead Zirconate Titanate(PZT-5A), piezoresistive pressure sensor is composed of n-Silicon(single-crystal, lightly doped) and p-Silicon(single-crystal, lightly doped), the capacitive pressure sensor is composed of SiC(6H) these pressure sensors deflects due to applied pressure from 0 to 2MPa over it are accounted. The modelling and simulation is carried out for different MEMS

IETE Technical Review

Nanotechnology is molecular manipulation. Any branch of technology that results from our ability ... more Nanotechnology is molecular manipulation. Any branch of technology that results from our ability to control and manipulate matter on length scales of 1-100 nm can be treated as nanotechnology. Nanotechnology is not new to nature. Nature has been doing molecular manipulation to build its systems like plants and animals. After observing and understanding the fundamental design principles of natural products, one gets inspiration to build his own nanoproducts. This paper stimulates a nanotechnician or a student to study nanotechnology and to think inline with nature, since it has been a great nanoscientist and nanotechnologist.

Employing the MEMS technology, high sensitivities and resolutions have been achieved. Capacitive ... more Employing the MEMS technology, high sensitivities and resolutions have been achieved. Capacitive sensing uses the diaphragm deformation-induced capacitance change. In this paper, the design and simulation of conventional slotted and touch mode MEMS capacitive pressure sensor is proposed. The designed sensors are composed of a polysilicon diaphragm that deflects due to pressure applied over it, is accounted for modeling. The simulation results shows that the slotted MEMS capacitive pressure sensor achieves good sensitivity where as the touch mode MEMS capacitive pressure sensor achieves good linearity and large operating pressure range. The proposed MEMS capacitive pressure sensor demonstrated with diaphragm of side length 20 μm, gap depth 2 m is being modelled. The sensor exhibit a linear response for the pressure applied between 0 to 50 MPa. The simulation is carried out for different types of MEMS capacitive pressure sensor using COMSOL Multiphysics.

IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society, 2011

... Haslina Jaafar, Othman Sidek, Azman Miskam and Shukri Korakkottil, American J. of Engineering... more ... Haslina Jaafar, Othman Sidek, Azman Miskam and Shukri Korakkottil, American J. of Engineering and Applied Sciences 2 (4), 2009-ISSN ... Abstract |Full Text: PDF (884KB); Hamood UrRahman,Tim Hesketh, Rodica Ramer, IEEE-ICET 2008, "Low Actuation Voltage RF MEMS ...

2014 International Conference on Electronic Systems, Signal Processing and Computing Technologies, 2014

ABSTRACT Micro cantilever based biochemical sensors have been around for a quite some time. Thoug... more ABSTRACT Micro cantilever based biochemical sensors have been around for a quite some time. Though they are limited to simple rectangular type of sensing surface, they are quite capable in detecting agents of interest. However one can improve their performance by enhancing their mass sensitivity. In this paper, a numerical study is performed to assess the influence of micro cantilever geometry on its resonance frequency. The change in resonance frequency can be used to detect the added mass. Thus one can use these results to improve the performance of micro cantilever based sensors. ANSYS/Multi physics and COMSOL/Multi physics analysis for frequency is carried out.

Microcantilevers are the basic and fundamental MEMS based structures used in microsystems. Microc... more Microcantilevers are the basic and fundamental MEMS based structures used in microsystems. Microcantilevers have been used both as sensors and actuators. In this paper, modeling and simulation details of a microcantilever for thermal actuation are presented. The advantage of this actuator is, the tip of this actuator which actually drives some other object doesn't gets heated and hence can be used in any environment safely. The main objective of this work is to investigate the nature of deflection of microcantilever based actuator for the applied potential difference across the base pads. In this device, two microcantilevers of different dimensions are considered and when these are subjected to same current, deflect differently. The current density in the thin arm is greater than the current density in the thick arm. Therefore, the thin arm heats up more than the thick arm, which makes the thin arm to bend. Thus, temperature produces thermal strain and thermally induced deflecti...

IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society, 2011

ABSTRACT Microcantilevers are the basic and fundamental structures used in microsystems for both ... more ABSTRACT Microcantilevers are the basic and fundamental structures used in microsystems for both sensing and actuating applications. In this paper, modeling, simulation and optimization details of a microcantilever based thermal actuator is presented. The advantage of this actuator is, the tip of this actuator which actually drives some other object doesn't get heated and hence can be used in any environment safely. The main objective of this work is to investigate the nature of deflection of microcantilever based actuator for the applied potential difference across the base pads and to find the optimized dimensions for maximum displacement. In this device, two microcantilevers of different dimensions are considered and when these are subjected to same current, deflect differently. This turns the microstructure into a thermal actuator. Then Genetic Algorithm (GA) optimization technique along with ANN is used for finding optimum length of shorter arm of electrothermal actuator for maximum deflection and minimum applied voltage. An ANN simulator is used to generate the deflections for various values of applied voltages and the short arm lengths further the optimal values are found using a Genetic Algorithm using newly derived chromosome representation and crossover operators. This neuro-genetic optimization is realized using MATLAB.

IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics, 2006

Double buffering is essential in complex, real time data acquisition and analysis systems. It is ... more Double buffering is essential in complex, real time data acquisition and analysis systems. It is also a programming technique used to create smooth flowing graphics. Double buffering uses two buffers to speed up a computer that can overlap I/O with processing. While the data in one buffer is being processed, the next set of data is read into the other

Journal of Physics: Conference Series, 2006

ABSTRACT Bio-Micro Electro Mechanical Systems/Nano Electro Mechanical Systems include a wide vari... more ABSTRACT Bio-Micro Electro Mechanical Systems/Nano Electro Mechanical Systems include a wide variety of sensors, actuators, and complex micro/nano devices for biomedical applications. Recent advances in biosensors have shown that sensors based on bending of microfabricated cantilevers have potential advantages over earlier used detection methods. Thus, a simple cantilever beam can be used as a sensor for biomedical, chemical and environmental applications. Here, microfabricated multilayered cantilever beam is exposed to sensing environment. Lower layer being pure structural silicon or polymer and upper layer is of polymer with antigen/antibody immobilized in it. Obviously, it has an affinity towards its counterpart i.e. antibody/antigen. In the sensing environment, if counter elements exists, they get captured by this sensing beam head, and the cantilever beam deflects. This deflection can be sensed and the presence of counter elements in the environment can be predicted. In this work, a finite element model of a biosensor for sensing antibody/antigen reaction is developed and simulated using ANSYS/Multiphysics. The optimal dimensions of the microcantilever beam are selected based on permissible deflection range with the aid of MATLAB. In the model analysis, both weight and surface stress effects on the cantilever are considered. Approximate weights are taken into account because of counter elements, considering their molecular weight and possible number of elements required for sensing. The results obtained in terms of lateral deflection are presented.

Journal of Physics: …, 2006

... International Conference on Engineering Education (Manchester, UK 18-21 August 2002) [2] BG S... more ... International Conference on Engineering Education (Manchester, UK 18-21 August 2002) [2] BG Sheeparamatti, MS Hebbal and PV Hungund 2005 ... Microelectronics symposium (Boise, Idaho, June 30-July 2, 2003) [5] CM Javalagi, SA Angadi, GS Basavaprabhu 2002 Synergy ...