Pub Date : 2010-10-25DOI: 10.1109/ISOT.2010.5687387
G. Duceux, B. Tamadazte, N. Piat, S. Dembélé, É. Marchand, G. Fortier
In MEMS microassembly areas, different methods of automatic focusing are presented in the literature. All these methods have a common point. Thus, the current autofocusing methods for microscopes need to perform a scanning on all the vertical axis of the microscope in order to find the peak corresponding to the focus (sharpen image). Those methods are time consuming. Therefore, this paper presents an original method of autofocusing based on a velocity control approach which is developed and validated on real experiments.
{"title":"Autofocusing-based visual servoing: Application to MEMS micromanipulation","authors":"G. Duceux, B. Tamadazte, N. Piat, S. Dembélé, É. Marchand, G. Fortier","doi":"10.1109/ISOT.2010.5687387","DOIUrl":"https://doi.org/10.1109/ISOT.2010.5687387","url":null,"abstract":"In MEMS microassembly areas, different methods of automatic focusing are presented in the literature. All these methods have a common point. Thus, the current autofocusing methods for microscopes need to perform a scanning on all the vertical axis of the microscope in order to find the peak corresponding to the focus (sharpen image). Those methods are time consuming. Therefore, this paper presents an original method of autofocusing based on a velocity control approach which is developed and validated on real experiments.","PeriodicalId":91154,"journal":{"name":"Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)","volume":"68 ","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2010-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91463951","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 : 2010-10-01DOI: 10.1109/ISOT.2010.5687329
Sangtak Park, Yanhui Bai, J. Yeow
Most electrostatic actuators fabricated by MEMS technologies require high actuation voltage and suffer from the pull-in phenomenon in the presence of high parasitic capacitance, either driven by conventional voltage control or charge control. The resonant drive circuit presented in this paper uses much lo wer supply voltage to drive electrostatic actuators, which usually require a high actuation voltage from a high voltage am plifier, through passive amplification at its electrical resonance. Furthermore, it is shown that the resonant drive circuit is able to extend operation range of electrostatic actuators beyond the pull-in point even in the presence of high parasitic capacitance due to its inherent negative feedback. Analytical and numerical models of the resonant drive circuit are derived and built to demonstrate the advantages of the resonant drive circuit implemented with two logic gates arranged in the BTL configuration.
{"title":"Design and analysis of resonant drive circuit for electrostatic actuators","authors":"Sangtak Park, Yanhui Bai, J. Yeow","doi":"10.1109/ISOT.2010.5687329","DOIUrl":"https://doi.org/10.1109/ISOT.2010.5687329","url":null,"abstract":"Most electrostatic actuators fabricated by MEMS technologies require high actuation voltage and suffer from the pull-in phenomenon in the presence of high parasitic capacitance, either driven by conventional voltage control or charge control. The resonant drive circuit presented in this paper uses much lo wer supply voltage to drive electrostatic actuators, which usually require a high actuation voltage from a high voltage am plifier, through passive amplification at its electrical resonance. Furthermore, it is shown that the resonant drive circuit is able to extend operation range of electrostatic actuators beyond the pull-in point even in the presence of high parasitic capacitance due to its inherent negative feedback. Analytical and numerical models of the resonant drive circuit are derived and built to demonstrate the advantages of the resonant drive circuit implemented with two logic gates arranged in the BTL configuration.","PeriodicalId":91154,"journal":{"name":"Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)","volume":"17 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75159674","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 : 2010-10-01DOI: 10.1109/ISOT.2010.5687384
Jun-kao Liu, S. Shi, Weishan Chen, Huijun Dong
A cylindrical traveling wave ultrasonic motor using outer excitation of two bending transducers is proposed in this paper. To avoid the drawbacks of conventional traveling wave ultrasonic motors, sandwich structure of PZT elements and d33 mode of PZT are used here. Working principle and design analysis by means of FEM method are detailed. A prototype motor has been fabricated and tested. Although the tested results of output torque was not ideal as compared with desired, the original configuration idea has great potential to obtain strong out put in our further study on it.
{"title":"Design and primitive study of a cylindrical traveling wave ultrasonic motor using outer excitation","authors":"Jun-kao Liu, S. Shi, Weishan Chen, Huijun Dong","doi":"10.1109/ISOT.2010.5687384","DOIUrl":"https://doi.org/10.1109/ISOT.2010.5687384","url":null,"abstract":"A cylindrical traveling wave ultrasonic motor using outer excitation of two bending transducers is proposed in this paper. To avoid the drawbacks of conventional traveling wave ultrasonic motors, sandwich structure of PZT elements and d33 mode of PZT are used here. Working principle and design analysis by means of FEM method are detailed. A prototype motor has been fabricated and tested. Although the tested results of output torque was not ideal as compared with desired, the original configuration idea has great potential to obtain strong out put in our further study on it.","PeriodicalId":91154,"journal":{"name":"Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)","volume":"244 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74047106","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 : 2010-10-01DOI: 10.1109/ISOT.2010.5687327
M. Jurca, C. Urs
The present paper shows the results of a new development in the field of industrial contactless temperature measurement typically in the range of 650 K up to 1200 K. Using fiber optics, the new sensor head has a small size matching the requirements for integration in demanding applications. The sensor delivers an irradiance dependent signal of the targeted (metallic) surface under test together with the acquired distance in the same measuring spot and the corresponding surface reflectivity. Thus a simple processing unit can calculate in realtime the emissivity and the influence of the measuring distance on the temperature measurement. The target application of this sensor is a multi-spot temperature profile acquisition for on-line monitoring of joining processes (welding, brazing, etc.) or any heat affected metal processing including the case of low-emissivity materials like Aluminum.
{"title":"Novel noncontact temperature fiber sensor for multi-spot field measurements","authors":"M. Jurca, C. Urs","doi":"10.1109/ISOT.2010.5687327","DOIUrl":"https://doi.org/10.1109/ISOT.2010.5687327","url":null,"abstract":"The present paper shows the results of a new development in the field of industrial contactless temperature measurement typically in the range of 650 K up to 1200 K. Using fiber optics, the new sensor head has a small size matching the requirements for integration in demanding applications. The sensor delivers an irradiance dependent signal of the targeted (metallic) surface under test together with the acquired distance in the same measuring spot and the corresponding surface reflectivity. Thus a simple processing unit can calculate in realtime the emissivity and the influence of the measuring distance on the temperature measurement. The target application of this sensor is a multi-spot temperature profile acquisition for on-line monitoring of joining processes (welding, brazing, etc.) or any heat affected metal processing including the case of low-emissivity materials like Aluminum.","PeriodicalId":91154,"journal":{"name":"Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)","volume":"20 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78197383","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 : 2010-10-01DOI: 10.1109/ISOT.2010.5687326
Amir Badkoubeh, G. Zhu, R. Beguenane
This paper presens a new conrol scheme for open-loop adapive opics. The considered deformable mirror is a MEMS (Micro-elecronic-mechanical Sysems) device wih coninuous face-shee In order o improve sysem performance, we inroduce a scheme based on closed-loop conrol of deformable mirror, which racks he reference signal provided by opical loop. The dynamics of he deformable mirror are modeled as a ime-dependen parial differenial equaion (PDE). To carry ou conrol design, we discreize his PDE model on space and apply he echnique of linear quadraic regulaor o his discreized model. In addiion o he advanages offered by closed-loop conrol, he proposed scheme works in a dynamic fashion, which is more computationally efficient compared to saic inversion of desired mirror shape. The simulaion resuls show he effeciveness of he proposed mehod.
{"title":"Open-loop adapive opics wih closed-loop conrol of deformable mirror","authors":"Amir Badkoubeh, G. Zhu, R. Beguenane","doi":"10.1109/ISOT.2010.5687326","DOIUrl":"https://doi.org/10.1109/ISOT.2010.5687326","url":null,"abstract":"This paper presens a new conrol scheme for open-loop adapive opics. The considered deformable mirror is a MEMS (Micro-elecronic-mechanical Sysems) device wih coninuous face-shee In order o improve sysem performance, we inroduce a scheme based on closed-loop conrol of deformable mirror, which racks he reference signal provided by opical loop. The dynamics of he deformable mirror are modeled as a ime-dependen parial differenial equaion (PDE). To carry ou conrol design, we discreize his PDE model on space and apply he echnique of linear quadraic regulaor o his discreized model. In addiion o he advanages offered by closed-loop conrol, he proposed scheme works in a dynamic fashion, which is more computationally efficient compared to saic inversion of desired mirror shape. The simulaion resuls show he effeciveness of he proposed mehod.","PeriodicalId":91154,"journal":{"name":"Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)","volume":"45 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81768187","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 : 2010-10-01DOI: 10.1109/ISOT.2010.5687346
P. Shiu, G. Knopf, M. Ostojic, S. Nikumb
Many analytical microsystems use molecular diffusion to mix small quantities of different liquids. However, this passive mixing process requires a relatively long microchannel which may impose design restrictions on the physical dimensions of the fluidic network. To shorten the length of the mixing channels, an active micromixer driven by a focused laser beam is described in this paper. The proposed solution improves the mixing rate by using low power laser radiation to heat the disparate fluids being transported through the channels. The operating principle is ba sed on the observation that the rate of molecular diffusion for non-reactive fluids increases with elevated temperatures. Preliminary experiments on a Y-channel micromixer were conducted using a 1mW, 670nm laser. The laser beam was focused on the microchannel using a 100mm focal length objective lens. The laser-assisted mixing of the test fluids showed a 36.4% increase in the average diffusion coefficient value with 1 to 10μL/min flow rates. The maximum percentage difference of diffusion distances had increased by approximately 7.85% over the non-laser-assisted conditions.
{"title":"Laser-assisted active microfluidic mixer","authors":"P. Shiu, G. Knopf, M. Ostojic, S. Nikumb","doi":"10.1109/ISOT.2010.5687346","DOIUrl":"https://doi.org/10.1109/ISOT.2010.5687346","url":null,"abstract":"Many analytical microsystems use molecular diffusion to mix small quantities of different liquids. However, this passive mixing process requires a relatively long microchannel which may impose design restrictions on the physical dimensions of the fluidic network. To shorten the length of the mixing channels, an active micromixer driven by a focused laser beam is described in this paper. The proposed solution improves the mixing rate by using low power laser radiation to heat the disparate fluids being transported through the channels. The operating principle is ba sed on the observation that the rate of molecular diffusion for non-reactive fluids increases with elevated temperatures. Preliminary experiments on a Y-channel micromixer were conducted using a 1mW, 670nm laser. The laser beam was focused on the microchannel using a 100mm focal length objective lens. The laser-assisted mixing of the test fluids showed a 36.4% increase in the average diffusion coefficient value with 1 to 10μL/min flow rates. The maximum percentage difference of diffusion distances had increased by approximately 7.85% over the non-laser-assisted conditions.","PeriodicalId":91154,"journal":{"name":"Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)","volume":"59 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88420571","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 : 2010-10-01DOI: 10.1109/ISOT.2010.5687349
Y. Fu, M. Guo, P. Phua
In recent years, interferometry-based dynamic measurement has been widely used in industrial area for non-contact measurement of vibration or continuous deformation. In dynamic measurement, the traditional phase extraction method, phase shifting technique, is not easily accomplished with either hig h-speed camera or single-pixel photo detector. Hence spectrum analysis becomes a predominant method to extract tran sient phases. Due to the development of high-speed cameras and photo detectors, now it is possible to encode different info rmation at separated positions in spectrum. In this paper, we will present two applications on fully utilizing spectrum space in dynamic measurement. One is a dual-wavelength image-plane digital holography using high-speed camera, and another is a spatially encoded multi-beam laser Doppler vibrometry using a single detector. The former experiment encodes information of two wavelengths at different parts of the spectrum. Two phase maps can be retrieved from one hologram. These two phase maps can generate a new phase distribution with an equivalent wavelength, so that the capturing rate of the camera can be reduced dramatically. The latter application encodes vibration information of different points on separated frequency ranges. The experiment verifies it is possible to do a precise vibration measurement on a 2×5 matrix simultaneously using a single photo detector. These results show with fully utilization of spectrum space, the capability of optical dynamic measurement will be tremendously improved.
{"title":"Utilization of full spectrum space in single-sensor-based optical dynamic measurement","authors":"Y. Fu, M. Guo, P. Phua","doi":"10.1109/ISOT.2010.5687349","DOIUrl":"https://doi.org/10.1109/ISOT.2010.5687349","url":null,"abstract":"In recent years, interferometry-based dynamic measurement has been widely used in industrial area for non-contact measurement of vibration or continuous deformation. In dynamic measurement, the traditional phase extraction method, phase shifting technique, is not easily accomplished with either hig h-speed camera or single-pixel photo detector. Hence spectrum analysis becomes a predominant method to extract tran sient phases. Due to the development of high-speed cameras and photo detectors, now it is possible to encode different info rmation at separated positions in spectrum. In this paper, we will present two applications on fully utilizing spectrum space in dynamic measurement. One is a dual-wavelength image-plane digital holography using high-speed camera, and another is a spatially encoded multi-beam laser Doppler vibrometry using a single detector. The former experiment encodes information of two wavelengths at different parts of the spectrum. Two phase maps can be retrieved from one hologram. These two phase maps can generate a new phase distribution with an equivalent wavelength, so that the capturing rate of the camera can be reduced dramatically. The latter application encodes vibration information of different points on separated frequency ranges. The experiment verifies it is possible to do a precise vibration measurement on a 2×5 matrix simultaneously using a single photo detector. These results show with fully utilization of spectrum space, the capability of optical dynamic measurement will be tremendously improved.","PeriodicalId":91154,"journal":{"name":"Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)","volume":"23 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86685350","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 : 2010-10-01DOI: 10.1109/ISOT.2010.5687337
Yukimasa Matsumura, W. Inami, Y. Kawata
We present a controlling technique of microporous structure by laser irradiation during self-organization process. Polymer solution was dropped on the substrate at high humid condition and the honeycomb structure of regularly aligned pores on the film was fabricated by attaching of water droplets on the solution surface. We demonstrated that it was possible to prevent forming of pores at the region of laser irradiation and flat surface was fabricated. We also demonstrated that a combination structure with two sizes pores by laser irradiation. Our method is a unique microfabrication processing technique that combines the advantages of bottom up and top down techniques. This method is expected that application for photonic crystals, biological cell culturing, surface science and electronics fields, etc.
{"title":"Control of self-organization microporous honeycomb film by the irradiation of nano second laser pulse: Deliberation of heat affected and shock wave by laser irradiation","authors":"Yukimasa Matsumura, W. Inami, Y. Kawata","doi":"10.1109/ISOT.2010.5687337","DOIUrl":"https://doi.org/10.1109/ISOT.2010.5687337","url":null,"abstract":"We present a controlling technique of microporous structure by laser irradiation during self-organization process. Polymer solution was dropped on the substrate at high humid condition and the honeycomb structure of regularly aligned pores on the film was fabricated by attaching of water droplets on the solution surface. We demonstrated that it was possible to prevent forming of pores at the region of laser irradiation and flat surface was fabricated. We also demonstrated that a combination structure with two sizes pores by laser irradiation. Our method is a unique microfabrication processing technique that combines the advantages of bottom up and top down techniques. This method is expected that application for photonic crystals, biological cell culturing, surface science and electronics fields, etc.","PeriodicalId":91154,"journal":{"name":"Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)","volume":"30 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90774646","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 : 2010-10-01DOI: 10.1109/ISOT.2010.5687375
Song Zhang, Yuanzheng Gong, Yajun Wang, J. Laughner, I. Efimov
High-speed, high-resolution 3-D shape measurement becomes increasingly important, with broad applications including medicine, homeland security, and entertainment. In recent years, we have made some progress, and developed an unprecedented 60 Hz rate 3-D shape measurement system with a digital fringe projection and phase-shifting method. However, a hardware bottleneck was met to further improve its speed. Since 2009, we have been studying a new method that could potentially eliminate this speed bottleneck. This technique is essentially to generate sinusoidal fringe patterns by properly defocusing binary ones. It coincides with the operation mechanism of the digital-light-processing (DLP) technology, and thus permits some speed breakthroughs. This paper summarizes some of our recent studies with this technology. In particular, we will include three major pieces: (1) double the speed of our real-time 3-D shape measurement system without significantly increase the hardware cost; (2) reach tens-of-kHz rate 3-D shape measurement by using a relatively inexpensive and off-the-shelf DLP projector; and (3) achieve kHz rate phase shifting for superior high-speed, high-quality 3-D shape measurement with the DLP Discovery platform. We will explain the principles of the technology, show some experimental results, and discuss the advantages and shortcomings of this technology.
{"title":"Some recent advance on high-speed, high-resolution 3-D shape measurement using projector defocusing","authors":"Song Zhang, Yuanzheng Gong, Yajun Wang, J. Laughner, I. Efimov","doi":"10.1109/ISOT.2010.5687375","DOIUrl":"https://doi.org/10.1109/ISOT.2010.5687375","url":null,"abstract":"High-speed, high-resolution 3-D shape measurement becomes increasingly important, with broad applications including medicine, homeland security, and entertainment. In recent years, we have made some progress, and developed an unprecedented 60 Hz rate 3-D shape measurement system with a digital fringe projection and phase-shifting method. However, a hardware bottleneck was met to further improve its speed. Since 2009, we have been studying a new method that could potentially eliminate this speed bottleneck. This technique is essentially to generate sinusoidal fringe patterns by properly defocusing binary ones. It coincides with the operation mechanism of the digital-light-processing (DLP) technology, and thus permits some speed breakthroughs. This paper summarizes some of our recent studies with this technology. In particular, we will include three major pieces: (1) double the speed of our real-time 3-D shape measurement system without significantly increase the hardware cost; (2) reach tens-of-kHz rate 3-D shape measurement by using a relatively inexpensive and off-the-shelf DLP projector; and (3) achieve kHz rate phase shifting for superior high-speed, high-quality 3-D shape measurement with the DLP Discovery platform. We will explain the principles of the technology, show some experimental results, and discuss the advantages and shortcomings of this technology.","PeriodicalId":91154,"journal":{"name":"Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)","volume":"11 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74103816","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 : 2010-10-01DOI: 10.1109/ISOT.2010.5687306
T. Haylock, A. Cenko, Jeff T. Meade, Farnoud Kazemzadeh, A. Hajian
Remote sensing from an aerial platform has many similarities to medical imaging. Line, whiskbroom, and pushbroom scanning techniques are compared with scan patterns from medical imaging. Satellite imaging uses a scan mirror or sensor array to achieve across track imagery and uses its procession in orbit to achieve along track movement. Medical imaging technologies, like confocal microscopy and optical coherence tomography, use similar scanning mechanisms for across track imagery, but are not in orbit and must introduce the along track movement with a second galvanometer scan mirror or linear stage. Square, triangle, sinusoidal, and sawtooth waveform inputs to the galvanometer provide the actuation signal to control sweeping patterns across a sample. A tissue handling system for medical applications is introduced for discussion and simulation of scan mechanism implementation. The scan system uses a galvanometer and linear stage combination to provide control over light delivery and sample positioning. The synchronization r equirements and efficacy of various scan patterns are examined.
{"title":"Unification of satellite and medical scan methods","authors":"T. Haylock, A. Cenko, Jeff T. Meade, Farnoud Kazemzadeh, A. Hajian","doi":"10.1109/ISOT.2010.5687306","DOIUrl":"https://doi.org/10.1109/ISOT.2010.5687306","url":null,"abstract":"Remote sensing from an aerial platform has many similarities to medical imaging. Line, whiskbroom, and pushbroom scanning techniques are compared with scan patterns from medical imaging. Satellite imaging uses a scan mirror or sensor array to achieve across track imagery and uses its procession in orbit to achieve along track movement. Medical imaging technologies, like confocal microscopy and optical coherence tomography, use similar scanning mechanisms for across track imagery, but are not in orbit and must introduce the along track movement with a second galvanometer scan mirror or linear stage. Square, triangle, sinusoidal, and sawtooth waveform inputs to the galvanometer provide the actuation signal to control sweeping patterns across a sample. A tissue handling system for medical applications is introduced for discussion and simulation of scan mechanism implementation. The scan system uses a galvanometer and linear stage combination to provide control over light delivery and sample positioning. The synchronization r equirements and efficacy of various scan patterns are examined.","PeriodicalId":91154,"journal":{"name":"Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)","volume":"37 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83811310","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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