Difference between revisions of "Samuel Achamfuo-Yeboah"

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__NOTOC__
 
__NOTOC__
 
='''Samuel Osei Achamfuo-Yeboah'''=
 
='''Samuel Osei Achamfuo-Yeboah'''=
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Micro-electronics research engineer with experience in design and test of full-custom CMOS integrated circuits, special interest in Optical Systems, Laser Ultrasound Systems
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Research engineer with experience in design and test of full-custom CMOS integrated circuits, special interest in Optical Systems, Laser Ultrasound Systems
  
 
[[Image:say_profile_pix.png|right|150px|Samuel Achamfuo-Yeboah]]
 
[[Image:say_profile_pix.png|right|150px|Samuel Achamfuo-Yeboah]]
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I also work on the use of a novel laser ultrasound detector, the Speckle Knife Edge Detector (SKED). I recently spent a year characterizing it and investigating its feasibility for field work. The SKED is currently under test as a suitable detector in a [[SRAS for materials characterisation|SRAS]] system, especially for components with rough surfaces. I'm working with [[Rikesh Patel|Rikesh]], [[Roger Light|Roger]] and [[Steve Sharples|Steve]] on this project.
 
I also work on the use of a novel laser ultrasound detector, the Speckle Knife Edge Detector (SKED). I recently spent a year characterizing it and investigating its feasibility for field work. The SKED is currently under test as a suitable detector in a [[SRAS for materials characterisation|SRAS]] system, especially for components with rough surfaces. I'm working with [[Rikesh Patel|Rikesh]], [[Roger Light|Roger]] and [[Steve Sharples|Steve]] on this project.
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[http://orcid.org/0000-0002-7432-4724 ORCID]
  
 
'''Location'''
 
'''Location'''
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@article{Summers20101399, title = "Modulated light camera for space applications and assessment via a test bench system ", journal = "Acta Astronautica ", volume = "66", number = "9–10", pages = "1399 - 1403", year = "2010", note = "", issn = "0094-5765", doi = "http://dx.doi.org/10.1016/j.actaastro.2009.10.030", pdf = {http://www.sciencedirect.com/science/article/pii/S0094576509005311/pdfft?md5=67b2f392f27118b14456acc1db79ca09&pid=1-s2.0-S0094576509005311-main.pdf}, url = "http://www.sciencedirect.com/science/article/pii/S0094576509005311", author = "David Summers and Matt Clark and Ian Stockford and Samuel Achamfuo-Yeboah and Joao Pereira Do Carmo", keywords = "Modulated light camera", keywords = "Optical", keywords = "Ranging", keywords = "Imagery", keywords = "ASIC design", keywords = "Short range \{GNC\} ", abstract = "The modulated light camera technology, developed by the University of Nottingham, illuminates a target with modulated laser light and measures the distance to the target scene by the phase change of the return, across an imaging array. This enables the measurement of distance to different parts of the scene simultaneously, on a pixel by pixel basis. A prototype camera has been assembled under the \{ESA\} Innovation Triangle Initiative and supplied to \{SEA\} where there has been an assessment of the potential of this technology for a range of space applications, including Rover Vision, Rendezvous and Docking, and monitoring the deployment of large structures. The supplied device has been tested with appropriate modulation schemes. Finally, a roadmap has been devised to show the developments needed to take this test system forward to a fully fledged spaceborne instrument. " }
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@article{Summers20101399, title = "Modulated light camera for space applications and assessment via a test bench system ", journal = "Acta Astronautica ", volume = "66", number = "9 - 10", pages = "1399 - 1403", year = "2010", note = "", issn = "0094-5765", doi = "http://dx.doi.org/10.1016/j.actaastro.2009.10.030", pdf = {http://www.sciencedirect.com/science/article/pii/S0094576509005311/pdfft?md5=67b2f392f27118b14456acc1db79ca09&pid=1-s2.0-S0094576509005311-main.pdf}, url = "http://www.sciencedirect.com/science/article/pii/S0094576509005311", author = "David Summers and Matt Clark and Ian Stockford and Samuel Achamfuo-Yeboah and Joao Pereira Do Carmo", keywords = "Modulated light camera", keywords = "Optical", keywords = "Ranging", keywords = "Imagery", keywords = "ASIC design", keywords = "Short range \{GNC\} ", abstract = "The modulated light camera technology, developed by the University of Nottingham, illuminates a target with modulated laser light and measures the distance to the target scene by the phase change of the return, across an imaging array. This enables the measurement of distance to different parts of the scene simultaneously, on a pixel by pixel basis. A prototype camera has been assembled under the \{ESA\} Innovation Triangle Initiative and supplied to \{SEA\} where there has been an assessment of the potential of this technology for a range of space applications, including Rover Vision, Rendezvous and Docking, and monitoring the deployment of large structures. The supplied device has been tested with appropriate modulation schemes. Finally, a roadmap has been devised to show the developments needed to take this test system forward to a fully fledged spaceborne instrument. " }
 
</bibtex>
 
</bibtex>
  

Latest revision as of 20:07, 29 February 2016

Samuel Osei Achamfuo-Yeboah

Research engineer with experience in design and test of full-custom CMOS integrated circuits, special interest in Optical Systems, Laser Ultrasound Systems

Samuel Achamfuo-Yeboah

Current Research

I am currently working on a novel temporal pixel multiplexing camera. At the heart of it is a novel CMOS chip - the TPM. It offers a novel way of capturing images in low light a a very high frame rate, with user-customizable frame interleaving. The chip has been manufactured and is under rigorous characterization now. I'm working with Roger on this project.

I also work on the use of a novel laser ultrasound detector, the Speckle Knife Edge Detector (SKED). I recently spent a year characterizing it and investigating its feasibility for field work. The SKED is currently under test as a suitable detector in a SRAS system, especially for components with rough surfaces. I'm working with Rikesh, Roger and Steve on this project.

ORCID

Location

B24 [IBIOS], Life Sciences Building, University Park

202/306 [AO], Electrical Systems and Optics, University Park

Phone

+44 (0)115 82-32322

Email

samuel.achamfuo-yeboahAtnotts.png

Education/Posts

2001-2005: BSc Electrical and Electronic Engineering (1st Class), Kwame Nkrumah University of Science and Technology

2006-2007: MSc Electronic Communications and Computer Engineering (1st Class), University of Nottingham

2007-2012: PhD Electrical and Electronic Engineering (Thesis), University of Nottingham

2012-present: Research Associate, University of Nottingham

PhD Research

Design and implementation of a full-custom Modulated Light Camera. My work focussed on the design of a CMOS MLC. It was manufactured and characterized successfully. (Thesis). I was supervised by Prof M Clark for this work.

Awards

  • Standard Chartered Scholar Award, KNUST 2002-2005
  • Deans Award, KNUST 2003-2005
  • Tower Innovation Scholarship, University of Nottingham 2008 - 2010

Journal publications

Samuel Achamfuo-Yeboah, R A Light, S D Sharples - Optical detection of ultrasound from optically rough surfaces using a custom CMOS sensor
Journal of Physics: Conference Series 581(1):012009,2015
http://stacks.iop.org/1742-6596/581/i=1/a=012009
Bibtex
Author : Samuel Achamfuo-Yeboah, R A Light, S D Sharples
Title : Optical detection of ultrasound from optically rough surfaces using a custom CMOS sensor
In : Journal of Physics: Conference Series -
Address :
Date : 2015

S D Sharpies, R A Light, Samuel Achamfuo-Yeboah, M Clark, M G Somekh - The SKED: speckle knife edge detector
Journal of Physics: Conference Series 520(1):012004,2014
http://stacks.iop.org/1742-6596/520/i=1/a=012004
Bibtex
Author : S D Sharpies, R A Light, Samuel Achamfuo-Yeboah, M Clark, M G Somekh
Title : The SKED: speckle knife edge detector
In : Journal of Physics: Conference Series -
Address :
Date : 2014

Rikesh Patel, Samuel Achamfuo-Yeboah, Roger Light, Matt Clark - Widefield two laser interferometry
Opt. Express 22(22):27094--27101, Nov 2014
http://www.opticsexpress.org/abstract.cfm?URI=oe-22-22-27094
Bibtex
Author : Rikesh Patel, Samuel Achamfuo-Yeboah, Roger Light, Matt Clark
Title : Widefield two laser interferometry
In : Opt. Express -
Address :
Date : Nov 2014

Rikesh Patel, Samuel Achamfuo-Yeboah, Roger Light, Matt Clark - Ultrastable heterodyne interferometer system using a CMOS modulated light camera
Opt. Express 20(16):17722--17733, Jul 2012
http://www.opticsexpress.org/abstract.cfm?URI=oe-20-16-17722
Bibtex
Author : Rikesh Patel, Samuel Achamfuo-Yeboah, Roger Light, Matt Clark
Title : Ultrastable heterodyne interferometer system using a CMOS modulated light camera
In : Opt. Express -
Address :
Date : Jul 2012

Rikesh Patel, Samuel Achamfuo-Yeboah, Roger Light, Matt Clark - Widefield heterodyne interferometry using a custom CMOS modulated light camera
Opt. Express 19(24):24546--24556, Nov 2011
http://www.opticsexpress.org/abstract.cfm?URI=oe-19-24-24546
Bibtex
Author : Rikesh Patel, Samuel Achamfuo-Yeboah, Roger Light, Matt Clark
Title : Widefield heterodyne interferometry using a custom CMOS modulated light camera
In : Opt. Express -
Address :
Date : Nov 2011

David Summers, Matt Clark, Ian Stockford, Samuel Achamfuo-Yeboah, Joao Pereira Do Carmo - Modulated light camera for space applications and assessment via a test bench system
Acta Astronautica 66(9 - 10):1399 - 1403,2010
http://www.sciencedirect.com/science/article/pii/S0094576509005311
Bibtex
Author : David Summers, Matt Clark, Ian Stockford, Samuel Achamfuo-Yeboah, Joao Pereira Do Carmo
Title : Modulated light camera for space applications and assessment via a test bench system
In : Acta Astronautica -
Address :
Date : 2010

Conferences

  • UON Institute of Aerospace exposition, Nottingham UK - 2010
  • IOP Anglo-French physical acoustic conference AFPAC2014, London - 2014
  • RCNDE Annual research review, Manchester UK - 2015
  • International Symposium on Laser Ultrasonics LU2015, Evanston IL USA - 2015
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