Pub Date : 2012-03-07DOI: 10.1109/ISPTS.2012.6260945
Rutuja Laulkar, Nivedita Daimiwal
Optical sensors that use photons as sensing elements are increasingly becoming important and relevant in the field of non-invasive diagnostics. The reason is that they are simple in construction, easy to use and relatively inexpensive in comparison with tools such as EEG, MRI and FMRI that can be used for research purposes without much investment. Among the various optical sensors available, the photoplethysmographic sensors that are capable of measuring the blood volumetric changes in subcutaneous vessels are used in present study. Objective is to diagnose different parameters like heart rate, blood pressure, respiratory rate, with the help of reflectance type PPG sensor. Real time PPG signal is captured from the sensor and with the help of microcontroller and RS 232 serial communication, the real time acquisition of PPG signal is observed on MATLAB. Detailed analysis of frequency spectrum of PPG signal shows a cardiac peak around 1Hz corresponding to 60 pulsations a minute and respiratory peak around 0.25 Hz corresponding to 15 inspiration/expiration cycles per minute. After the analysis of PPG signal, all the parameters are calculated and with the help of graphic user interface (GUI), all the parameters can simultaneously be seen on GUI window.
{"title":"Acquisition of PPG signal for diagnosis of parameters related to heart","authors":"Rutuja Laulkar, Nivedita Daimiwal","doi":"10.1109/ISPTS.2012.6260945","DOIUrl":"https://doi.org/10.1109/ISPTS.2012.6260945","url":null,"abstract":"Optical sensors that use photons as sensing elements are increasingly becoming important and relevant in the field of non-invasive diagnostics. The reason is that they are simple in construction, easy to use and relatively inexpensive in comparison with tools such as EEG, MRI and FMRI that can be used for research purposes without much investment. Among the various optical sensors available, the photoplethysmographic sensors that are capable of measuring the blood volumetric changes in subcutaneous vessels are used in present study. Objective is to diagnose different parameters like heart rate, blood pressure, respiratory rate, with the help of reflectance type PPG sensor. Real time PPG signal is captured from the sensor and with the help of microcontroller and RS 232 serial communication, the real time acquisition of PPG signal is observed on MATLAB. Detailed analysis of frequency spectrum of PPG signal shows a cardiac peak around 1Hz corresponding to 60 pulsations a minute and respiratory peak around 0.25 Hz corresponding to 15 inspiration/expiration cycles per minute. After the analysis of PPG signal, all the parameters are calculated and with the help of graphic user interface (GUI), all the parameters can simultaneously be seen on GUI window.","PeriodicalId":6431,"journal":{"name":"2012 1st International Symposium on Physics and Technology of Sensors (ISPTS-1)","volume":"52 1","pages":"274-277"},"PeriodicalIF":0.0,"publicationDate":"2012-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85910738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-03-07DOI: 10.1109/ISPTS.2012.6260916
S. Enjamuri, A. Amsanpally, K. C. James Raju
This paper reports the behavior of the FBAR and its performance due to change of materials and their thicknesses. The resonance of the resonator depends on the thickness of the piezoelectric thin film acoustic resonator. The confinement of the acoustic wave in resonator depends on the electrode thickness and materials. Here such materials effects and the geometric effects are studied. It is found that acoustic properties of all the layers influences the resonator performance, with increased resonance frequency results from thinner electrodes, as it decreases the mass loading effect of resonator's electrodes and uses high longitudinal velocity of the piezoelectric materials.
{"title":"Optimization and analysis of piezoelectric and electrode materials' thickness effects on the performance of film bulk acoustic resonator","authors":"S. Enjamuri, A. Amsanpally, K. C. James Raju","doi":"10.1109/ISPTS.2012.6260916","DOIUrl":"https://doi.org/10.1109/ISPTS.2012.6260916","url":null,"abstract":"This paper reports the behavior of the FBAR and its performance due to change of materials and their thicknesses. The resonance of the resonator depends on the thickness of the piezoelectric thin film acoustic resonator. The confinement of the acoustic wave in resonator depends on the electrode thickness and materials. Here such materials effects and the geometric effects are studied. It is found that acoustic properties of all the layers influences the resonator performance, with increased resonance frequency results from thinner electrodes, as it decreases the mass loading effect of resonator's electrodes and uses high longitudinal velocity of the piezoelectric materials.","PeriodicalId":6431,"journal":{"name":"2012 1st International Symposium on Physics and Technology of Sensors (ISPTS-1)","volume":"19 1","pages":"185-188"},"PeriodicalIF":0.0,"publicationDate":"2012-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85341296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-03-07DOI: 10.1109/ISPTS.2012.6260880
Y.S. Sarma
Vision ranks highest in hierarchy of human senses. Our perception of the world and things around us are perceived through our eye-sight with limitations such as resolution, speed, wave-length, etc. Sensors are devices used to sense signals of various forms of energy such as electro-magnetic (em) radiation, chemical, thermal, mechanical and magnetic in nature. Sensors used for detection of em radiation are generally termed as ‘detectors’. Detectors used to obtain images with imaging systems (viz., cameras, camcorders, etc) by placing them at their focal planes are termed as ‘Focal Plane Detectors or Focal Plane Sensors’. Any one type of focal plane sensor cannot be made to satisfy all the user needs because of varying requirements for their intended applications and thus often require custom design.
{"title":"Focal plane sensors","authors":"Y.S. Sarma","doi":"10.1109/ISPTS.2012.6260880","DOIUrl":"https://doi.org/10.1109/ISPTS.2012.6260880","url":null,"abstract":"Vision ranks highest in hierarchy of human senses. Our perception of the world and things around us are perceived through our eye-sight with limitations such as resolution, speed, wave-length, etc. Sensors are devices used to sense signals of various forms of energy such as electro-magnetic (em) radiation, chemical, thermal, mechanical and magnetic in nature. Sensors used for detection of em radiation are generally termed as ‘detectors’. Detectors used to obtain images with imaging systems (viz., cameras, camcorders, etc) by placing them at their focal planes are termed as ‘Focal Plane Detectors or Focal Plane Sensors’. Any one type of focal plane sensor cannot be made to satisfy all the user needs because of varying requirements for their intended applications and thus often require custom design.","PeriodicalId":6431,"journal":{"name":"2012 1st International Symposium on Physics and Technology of Sensors (ISPTS-1)","volume":"2013 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2012-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87722943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-03-07DOI: 10.1109/ISPTS.2012.6260917
A. Joshi, S. Gangal, R. Gandhi, K. Natarajan, D. Bodas
RF MEMS switches are key components in lowpower communication system. The present paper reports fabrication of MEMS based series and shunt switches for actuation voltage in the range of 30–50V. Focusing on low cost fabrication approach, Aluminum was chosen as a cost effective alternative for fabrication of transmission line and structural beam. The switches were designed for higher isolation of >25dB and low insertion loss of <0.5dB. The shunt and series switches were investigated for the frequency range of 1–20 GHz. The shunt switch shows an insertion loss of 0.5db and isolation of −28dB @ 20GHz and the series switch shows an insertion loss of 0.7db and isolation of −27dB @ 20GHz. The measured actuation voltage was 30V for shunt switch and 42V for series switch.
{"title":"Low cost fabrication and testing of high isolation RF MEMS switches","authors":"A. Joshi, S. Gangal, R. Gandhi, K. Natarajan, D. Bodas","doi":"10.1109/ISPTS.2012.6260917","DOIUrl":"https://doi.org/10.1109/ISPTS.2012.6260917","url":null,"abstract":"RF MEMS switches are key components in lowpower communication system. The present paper reports fabrication of MEMS based series and shunt switches for actuation voltage in the range of 30–50V. Focusing on low cost fabrication approach, Aluminum was chosen as a cost effective alternative for fabrication of transmission line and structural beam. The switches were designed for higher isolation of >25dB and low insertion loss of <0.5dB. The shunt and series switches were investigated for the frequency range of 1–20 GHz. The shunt switch shows an insertion loss of 0.5db and isolation of −28dB @ 20GHz and the series switch shows an insertion loss of 0.7db and isolation of −27dB @ 20GHz. The measured actuation voltage was 30V for shunt switch and 42V for series switch.","PeriodicalId":6431,"journal":{"name":"2012 1st International Symposium on Physics and Technology of Sensors (ISPTS-1)","volume":"32 1","pages":"189-192"},"PeriodicalIF":0.0,"publicationDate":"2012-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82808752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-03-07DOI: 10.1109/ISPTS.2012.6260904
R. Hatwar, S. Ambad, M. Kumbhalkar, T. Singh, P. Gandhi, M. Atrey, P. Joshi, S. Joseph, G. Phatak
This paper reports the Simulation, Design, fabrication and preliminary testing results of a single channel, open cycle miniature Joule-Thomson (JT) refrigerator. Miniaturization of the refrigerator is aimed at providing an alternative that would suffice both the requirements of milli watt cooling as well as high portability owing to its light weight. The present work describes the manufacturing details and experimental investigations carried out on the heat exchanger that forms the most important component of such refrigerators. The miniature heat exchanger is made out of micro channels. This paper reports performance of heat exchangers, with varying sample dimensions. The width of the samples was varied keeping the channel dimensions constant and another set of studies with variations in sample length were carried. Out The channel had dimension of 58.5 × 1 (width) × 0.25 mm (depth).
{"title":"Development of a miniature Joule-Thomson refrigerator using LTCC (Low Temperature Co-fired Ceramic) technique","authors":"R. Hatwar, S. Ambad, M. Kumbhalkar, T. Singh, P. Gandhi, M. Atrey, P. Joshi, S. Joseph, G. Phatak","doi":"10.1109/ISPTS.2012.6260904","DOIUrl":"https://doi.org/10.1109/ISPTS.2012.6260904","url":null,"abstract":"This paper reports the Simulation, Design, fabrication and preliminary testing results of a single channel, open cycle miniature Joule-Thomson (JT) refrigerator. Miniaturization of the refrigerator is aimed at providing an alternative that would suffice both the requirements of milli watt cooling as well as high portability owing to its light weight. The present work describes the manufacturing details and experimental investigations carried out on the heat exchanger that forms the most important component of such refrigerators. The miniature heat exchanger is made out of micro channels. This paper reports performance of heat exchangers, with varying sample dimensions. The width of the samples was varied keeping the channel dimensions constant and another set of studies with variations in sample length were carried. Out The channel had dimension of 58.5 × 1 (width) × 0.25 mm (depth).","PeriodicalId":6431,"journal":{"name":"2012 1st International Symposium on Physics and Technology of Sensors (ISPTS-1)","volume":"1 1","pages":"145-148"},"PeriodicalIF":0.0,"publicationDate":"2012-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89595746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-03-07DOI: 10.1109/ISPTS.2012.6260903
K. Jayaprakash Reddy., C. K. Malhi, R. Pratap, N. Bhat
Suspended gate MOSFETs exist since last few decades. Resonant gate transistors were first demonstrated as a means of getting high Q devices [1]. The advantages of transistor based transduction as compared to the capacitive detection have also been demonstrated [2,3]. The behaviors of SGFETs have been studied using equivalent lumped parameter modeling methodology [4–7]. Numerical simulations involving “hybrid” FEA coupling between two different tools, ANSYS Multiphysics and ISE-DESIS, with the help of an external Perl script have also been tried [8]. Here ANSYS is used for the coupled electrostatic and structural physics calculations and ISE-DESIS provides the correct boundary conditions for the electrostatic domain using semiconductor physics. Another related study [9] solved the beam equation coupled with the Poisson equation numerically using finite difference and Newton Raphson method. Our work presents an easier modeling and analysis of a suspended gate MOSFET in COMSOL, successfully demonstrating a solution of a moving gate type device. In our analysis, we consider the air gap as a deformable continuum and we report the standard Id-Vg characteristics of the transistor. Commercially available packages such as ISE-DESIS specialize in only fixed gap analysis wherein air is also modeled as a material with a known permittivity. In such an analysis the capacitor formed due to the air gap remains fixed. We demonstrate here that this analysis can be easily carried out in COMSOL using its multiphysics features. Using two dimensional analysis involving structural mechanics domain, moving mesh ALE, convection and diffusion, and the electrostatics domain, the effect of moving gate and hence the moving air gap can be modeled and analyzed.
{"title":"Coupled numerical analysis of Suspended gate field effect transistor (SGFET)","authors":"K. Jayaprakash Reddy., C. K. Malhi, R. Pratap, N. Bhat","doi":"10.1109/ISPTS.2012.6260903","DOIUrl":"https://doi.org/10.1109/ISPTS.2012.6260903","url":null,"abstract":"Suspended gate MOSFETs exist since last few decades. Resonant gate transistors were first demonstrated as a means of getting high Q devices [1]. The advantages of transistor based transduction as compared to the capacitive detection have also been demonstrated [2,3]. The behaviors of SGFETs have been studied using equivalent lumped parameter modeling methodology [4–7]. Numerical simulations involving “hybrid” FEA coupling between two different tools, ANSYS Multiphysics and ISE-DESIS, with the help of an external Perl script have also been tried [8]. Here ANSYS is used for the coupled electrostatic and structural physics calculations and ISE-DESIS provides the correct boundary conditions for the electrostatic domain using semiconductor physics. Another related study [9] solved the beam equation coupled with the Poisson equation numerically using finite difference and Newton Raphson method. Our work presents an easier modeling and analysis of a suspended gate MOSFET in COMSOL, successfully demonstrating a solution of a moving gate type device. In our analysis, we consider the air gap as a deformable continuum and we report the standard Id-Vg characteristics of the transistor. Commercially available packages such as ISE-DESIS specialize in only fixed gap analysis wherein air is also modeled as a material with a known permittivity. In such an analysis the capacitor formed due to the air gap remains fixed. We demonstrate here that this analysis can be easily carried out in COMSOL using its multiphysics features. Using two dimensional analysis involving structural mechanics domain, moving mesh ALE, convection and diffusion, and the electrostatics domain, the effect of moving gate and hence the moving air gap can be modeled and analyzed.","PeriodicalId":6431,"journal":{"name":"2012 1st International Symposium on Physics and Technology of Sensors (ISPTS-1)","volume":"10 1","pages":"141-144"},"PeriodicalIF":0.0,"publicationDate":"2012-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77832512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-03-07DOI: 10.1109/ISPTS.2012.6260879
V. Patel, S. Bhati, Sandip Paul, A. Roy Chowdhury, R. Parmar, Rakesh Vikraman Nair Rema, P. N. Babu, A. K. Lal, R. Dave, D. Samudraiah, A. S. Kiran Kumar, Mathieu Gil
Miniaturization is an essential requirement for development of space-borne electronics hardware. Recently, advancements in the device and packaging technology such as Analog Front End (AFE), FPGA and ASIC has enabled on-board designers to develop space worthy, high reliability miniaturized hardware meeting the functional and performance requirements. HMC, SIP, 3D packaging technology etc. can further miniaturize the hardware by embedding dice, devices, active and passive components. 3D packaging technology, which is ESA qualified, allows us to integrate packaged devices and printed circuit boards (PCB) with high reliability vertical interconnections. It is possible to migrate from existing PCB designs along with the same bill of material to 3D packaging technology. A development of miniaturized camera module consisting of 4K elements linear detector, detector drive electronics, analog video processing and digitizing electronics, timing and control logic along with serial data output has been carried out for space use using 3D packaging. Brief details of this camera hardware, development steps and realization challenges along with test results are given in this paper.
{"title":"3D packaged camera head for space use","authors":"V. Patel, S. Bhati, Sandip Paul, A. Roy Chowdhury, R. Parmar, Rakesh Vikraman Nair Rema, P. N. Babu, A. K. Lal, R. Dave, D. Samudraiah, A. S. Kiran Kumar, Mathieu Gil","doi":"10.1109/ISPTS.2012.6260879","DOIUrl":"https://doi.org/10.1109/ISPTS.2012.6260879","url":null,"abstract":"Miniaturization is an essential requirement for development of space-borne electronics hardware. Recently, advancements in the device and packaging technology such as Analog Front End (AFE), FPGA and ASIC has enabled on-board designers to develop space worthy, high reliability miniaturized hardware meeting the functional and performance requirements. HMC, SIP, 3D packaging technology etc. can further miniaturize the hardware by embedding dice, devices, active and passive components. 3D packaging technology, which is ESA qualified, allows us to integrate packaged devices and printed circuit boards (PCB) with high reliability vertical interconnections. It is possible to migrate from existing PCB designs along with the same bill of material to 3D packaging technology. A development of miniaturized camera module consisting of 4K elements linear detector, detector drive electronics, analog video processing and digitizing electronics, timing and control logic along with serial data output has been carried out for space use using 3D packaging. Brief details of this camera hardware, development steps and realization challenges along with test results are given in this paper.","PeriodicalId":6431,"journal":{"name":"2012 1st International Symposium on Physics and Technology of Sensors (ISPTS-1)","volume":"82 1","pages":"63-66"},"PeriodicalIF":0.0,"publicationDate":"2012-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80333728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-03-07DOI: 10.1109/ISPTS.2012.6260955
A. Kumbhar, D. Gharpure, B. Botre, S. Sadistap
This paper details development of a low cost, small size, portable embedded electronic nose (e-nose). The odor Sensor array is composed of commercially available metal oxide semiconductor sensors by Figaro. The embedded E-nose consists of PIC18F4520 and has an RS 232 interface to Desktop PC for data acquisition, storage and analysis of the odor signals. The developed system is used to analyze odors of onions and oranges. The paper presents the response of the array and results obtained.
{"title":"Embedded e-nose for food inspection","authors":"A. Kumbhar, D. Gharpure, B. Botre, S. Sadistap","doi":"10.1109/ISPTS.2012.6260955","DOIUrl":"https://doi.org/10.1109/ISPTS.2012.6260955","url":null,"abstract":"This paper details development of a low cost, small size, portable embedded electronic nose (e-nose). The odor Sensor array is composed of commercially available metal oxide semiconductor sensors by Figaro. The embedded E-nose consists of PIC18F4520 and has an RS 232 interface to Desktop PC for data acquisition, storage and analysis of the odor signals. The developed system is used to analyze odors of onions and oranges. The paper presents the response of the array and results obtained.","PeriodicalId":6431,"journal":{"name":"2012 1st International Symposium on Physics and Technology of Sensors (ISPTS-1)","volume":"11 1","pages":"311-314"},"PeriodicalIF":0.0,"publicationDate":"2012-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78710715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-03-07DOI: 10.1109/ISPTS.2012.6260899
N. K. Pandey, A. Roy, K. Tiwari, A. Mishra, A. Rai, S. Jayaswal, M. Rashmi, A. Govindan
In this paper we report humidity sensing studies of undoped and SnO2 doped WO3. Sensitivity is 13.48 MΩ/%RH for WO3-SnO2 nanocomposite. Hysteresis is less than 3% for WO3-SnO2 nanocomposite. Aging for WO3-SnO2 nanocomposite is 5.7%. Activation energy for conduction obtained from Arrhenius graph are 0.127 eV in 27°C to 200°C and 0.547 eV in 200°C to 600°C temperature range . Response time and recovery time for sample WO3-SnO2 nanocomposite are 117 s and 411 s respectively, while that for sample WO3 are 172 s and 557 s respectively. Average grain size calculated from SEM micrographs for WO3 and WO3-SnO2 nanocomposite are 135 nm and 150 nm respectively.
{"title":"Humidity sensor based on synthesized pure WO3 and WO3-SnO2 nanocomposite","authors":"N. K. Pandey, A. Roy, K. Tiwari, A. Mishra, A. Rai, S. Jayaswal, M. Rashmi, A. Govindan","doi":"10.1109/ISPTS.2012.6260899","DOIUrl":"https://doi.org/10.1109/ISPTS.2012.6260899","url":null,"abstract":"In this paper we report humidity sensing studies of undoped and SnO<inf>2</inf> doped WO<inf>3</inf>. Sensitivity is 13.48 MΩ/%RH for WO<inf>3</inf>-SnO<inf>2</inf> nanocomposite. Hysteresis is less than 3% for WO<inf>3</inf>-SnO<inf>2</inf> nanocomposite. Aging for WO<inf>3</inf>-SnO<inf>2</inf> nanocomposite is 5.7%. Activation energy for conduction obtained from Arrhenius graph are 0.127 eV in 27°C to 200°C and 0.547 eV in 200°C to 600°C temperature range . Response time and recovery time for sample WO<inf>3</inf>-SnO<inf>2</inf> nanocomposite are 117 s and 411 s respectively, while that for sample WO<inf>3</inf> are 172 s and 557 s respectively. Average grain size calculated from SEM micrographs for WO<inf>3</inf> and WO<inf>3</inf>-SnO<inf>2</inf> nanocomposite are 135 nm and 150 nm respectively.","PeriodicalId":6431,"journal":{"name":"2012 1st International Symposium on Physics and Technology of Sensors (ISPTS-1)","volume":"54 1","pages":"129-132"},"PeriodicalIF":0.0,"publicationDate":"2012-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75802859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-03-07DOI: 10.1109/ISPTS.2012.6260897
Jitendra Khubani, M. Mhetre
A spirometer is an apparatus for measuring the volume of air inspired and expired by the lungs. Spirometry is one of the most widely applied clinical tests in respiratory medicine to diagnose obstructive and to rule out restrictive pulmonary diseases. In this work, attempt has been made to predict pattern recognition accuracy using support vector regression in order to enhance the spirometric investigations. Support vector machine constructs a hyperplane or set of hyperplanes in a high-or infinite- dimensional space, which can be used for classification, regression, or other tasks. We have collected data from different hospitals. The acquired data are then used to predict pattern recognition accuracy. Since this method is useful in diagnosing the pulmonary abnormalities with incomplete data and data with poor recording. We applied the SVM to construct the prediction model and select Polynomial Function as the kernel function.
{"title":"Spirometric data analysis by support vector machine","authors":"Jitendra Khubani, M. Mhetre","doi":"10.1109/ISPTS.2012.6260897","DOIUrl":"https://doi.org/10.1109/ISPTS.2012.6260897","url":null,"abstract":"A spirometer is an apparatus for measuring the volume of air inspired and expired by the lungs. Spirometry is one of the most widely applied clinical tests in respiratory medicine to diagnose obstructive and to rule out restrictive pulmonary diseases. In this work, attempt has been made to predict pattern recognition accuracy using support vector regression in order to enhance the spirometric investigations. Support vector machine constructs a hyperplane or set of hyperplanes in a high-or infinite- dimensional space, which can be used for classification, regression, or other tasks. We have collected data from different hospitals. The acquired data are then used to predict pattern recognition accuracy. Since this method is useful in diagnosing the pulmonary abnormalities with incomplete data and data with poor recording. We applied the SVM to construct the prediction model and select Polynomial Function as the kernel function.","PeriodicalId":6431,"journal":{"name":"2012 1st International Symposium on Physics and Technology of Sensors (ISPTS-1)","volume":"2 1","pages":"121-124"},"PeriodicalIF":0.0,"publicationDate":"2012-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74982893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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