Browsing by Author "Atashkhooei, Reza"
Now showing items 1-17 of 17
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A nanometric displacement measurement system using differential optical feedback interferometry
(2013-11-01)
Article
Restricted access - publisher's policy -
Adaptive autofocus technique for speckle control in optical feedback interferometry
(2014-09-01)
Article
Restricted access - publisher's policyAn adaptive autofocus technique for the control of speckle effect in optical feedback interferometry (OFI) is discussed. The beam spot size effect over the OFI signal is presented, justifying the proposed approach. An ... -
Adaptive feedback control in self-mixing interferometry using active optical elements
(Universidad de Murcia, 2011)
Conference report
Open AccessA voltage-controlled liquid lens has been used as an adaptive optical element integrated in a conventional self-mixing interferometry setup. The lens is used to control the optical feedback level and the focus position of ... -
Adaptive optical head for industrial vibrometry applications
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2011)
Conference report
Restricted access - publisher's policyA self-mixing laser interferometer has been combined with a compact and robust optical system including an adaptive optical element in the form of a voltage controllable liquid lens. The use of the liquid lens enables the ... -
Adaptive self-mixing interferometry for metrology applications
(Universitat Politècnica de Catalunya, 2013-11-04)
Doctoral thesis
Open AccessAmong the laser based techniques proposed for metrology applications, classical interferometers offer the highest precision measurements. However, the cost of some of the elements involved and the number of optical components ... -
Analysis and control of speckle effects in self-mixing interferometry
(2011)
Conference report
Restricted access - publisher's policy -
Current Developments on Optical Feedback Interferometry as an All-Optical Sensor for Biomedical Applications
(2016-05-13)
Article
Open AccessOptical feedback interferometry (OFI) sensors are experiencing a consistent increase in their applications to biosensing due to their contactless nature, low cost and compactness, features that fit very well with current ... -
Dealing with speckle effects in self-mixing interferometry measurements
(2013-05)
Article
Restricted access - publisher's policy -
Differential optical feedback interferometry for the measurement of nanometric displacements
(2014)
Article
Open AccessWe have recently proposed differential optical feedback interferometry as a convenient method to measure nanometric displacements. In this paper, we present experimental results to support the proposed method. The acquisition ... -
Interferometría autorrealimentada para la medición de deformación en materiales estructurales sometidos a cargas dinámicas
(2012)
Conference report
Open Access -
Microcantilever Displacement Measurement Using a Mechanically Modulated Optical Feedback Interferometer
(2016-06-29)
Article
Open AccessMicrocantilever motion detection is a useful tool for the characterization of the physical, chemical and biological properties of materials. In the past, different approaches have been proposed and tested to enhance the ... -
Nuevas líneas de trabajo en metrología óptica en el CD6 de la UPC
(2009)
Conference report
Open Access -
Null-test dinámico de lentes progresivas personalizadas basado en un modulador puro de fase de cristal líquido
(2009)
Conference report
Restricted access - publisher's policyLos avances en las capacidades de diseño y en las herramientas mecánicas de fabricación de superficies ópticas arbitrarias (free form) hacen posible la generación de lentes de formas más complejas. Entre los procesos de ... -
Optical feedback flowmetry: impact of particle concentration on the signal processing method
(2017-12-11)
Article
Open AccessIEEE Optical feedback interferometry (OFI) based flowmetry enables simple, robust, self-aligned and low cost systems to measure the fluid flow velocity with reasonable accuracy. The particle concentration in the fluid ... -
Proyección de franjas fotogramétrica para la medida in vivo de topografías de piel humana
(2009)
Conference report
Restricted access - publisher's policyLa perfilometría topográfica de la piel en diferentes escalas permite el análisis cuantitativo de los procedimientos médicos y cosméticos. En particular, el uso de parámetros perfilométricos de superficie en las mediciones ... -
Runout tracking in electric motors using self-mixing interferometry
(IEEE Industrial Electronics Society, 2014-01-17)
Article
Restricted access - publisher's policy -
Shaft trajectory analysis in a partially demagnetized permanent magnet synchronous motor
(Institute of Electrical and Electronics Engineers (IEEE), 2013-08-01)
Article
Restricted access - publisher's policyAbstract—Demagnetization faults have a negative impact on the behavior of permanent-magnet synchronous machines, thus reducing their efficiency, generating torque ripple, mechanical vibrations, and acoustic noise, ...
