NDLI: Σ-integration Analog to Digital Converter , Idea , Implementation and Results

Please wait, while we are loading the content...

Σ-integration Analog to Digital Converter , Idea , Implementation and Results

Content Provider	Semantic Scholar
Author	Ṕı̌sa, Pavel Porazil, Petr
Copyright Year	2005
Abstract	The paper presents a new analog signal to digital representation conversion technique. The proposed approach tries to combine and preserve significant excellent features of double integration and sigma-delta analog to digital converters. The proposed AD-converter is constructed for a direct conversion of two analog signals ratio to the digital domain. The design uses an oversampling technique and the digital output resolution and bandwidth can be tuned by digital data post-processing. Other outstanding feature is an accurate area under signal curve measurement. The output data rate is constant (unlike for voltagefrequency converters) and the response time is maintained short without need of high modulator switching frequency. The described AD-converter features are a big advantage for the spectrophotometric absorbance measurement. Most of other measurement applications of AD-converters request mainly a great relative accuracy of conversion, but the absorbance is computed as a logarithm of the measured ratio between the measurement and the reference optical sensor response. The developed converter is already successfully used in serially produced UV-VIS spectrophotometric HPLC detectors. The converter has some drawback as well, the borders of sampling interval burden by some jitter although it has no influence on accumulated area computation. Copyright c ©2005 IFAC
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.nt.ntnu.no/users/skoge/prost/proceedings/ifac2005/Fullpapers/03810.pdf
Alternate Webpage(s)	http://folk.ntnu.no/skoge/prost/proceedings/ifac2005/Fullpapers/03810.pdf
Language	English
Access Restriction	Open
Subject Keyword	Analog signal Analog-to-digital converter Clock rate Computation Converter Device Component Copyright DNA Integration Data rate units Delta-sigma modulation Detectors Digital data Html Link Type - copyright Liquid Chromatography Logarithm Modulator Device Component Oversampling Response time (technology) Sampling (signal processing) Sensor Universities Video post-processing Visual Instruction Set
Content Type	Text
Resource Type	Article

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in