Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Detection of flow pulsation by micro-controller equipped ultrasonic flow meter
2006 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This thesis demonstrates that the small micro-controller present in ultrasonic flow meters can detect error inducing flow pulsations. The implemented code is provided in the appendices. The application targets the district heating industry where the use of ultrasonic flow meters is growing more and more common as they are accurate, non-intrusive and low cost. District heating companies desire accurate and low cost flow measurement. An underestimation of the flow rate leads to a loss of income and the total cost of measuring, the reading, maintenance and installation represents a relatively large part of the total cost. Recently, in competitive market, micro-controllers have become inexpensive and those are capable of doing complex computations. In this thesis, as part of self-diagnosis techniques, the detection of the pulsating flow is implemented on an 8-bit ATMEL AVR micro-controller. It saves a huge installation cost and is economically beneficial for an industry. Serial communication and data conversion are also implemented to receive velocity input data. The work shows that even with an 8-bit micro-controller flow pulsations are detectable.

Place, publisher, year, edition, pages
2006.
Keyword [en]
Technology, FFT, DFT, Pulsating flow, Ultrasonic Flow Meter, Hamming, window, Atmel AVR
Keyword [sv]
Teknik
Identifiers
URN: urn:nbn:se:ltu:diva-48051ISRN: LTU-PB-EX--06/39--SELocal ID: 5878bbd3-4bab-4354-a92e-c21f317c3c20OAI: oai:DiVA.org:ltu-48051DiVA: diva2:1021389
Subject / course
Student thesis, at least 30 credits
Educational program
Computer Science and Engineering, master's level
Examiners
Note
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

Open Access in DiVA

fulltext(1675 kB)16 downloads
File information
File name FULLTEXT01.pdfFile size 1675 kBChecksum SHA-512
a0aec5fb68ea89aae1f59ca146f860c5337f453a41402eeae2c21984f4892e61de99bdcf3ee4aefb64cf3b729daad01872d72bf95ae40e7d7b77fa50c85b1baf
Type fulltextMimetype application/pdf

Search outside of DiVA

GoogleGoogle Scholar
Total: 16 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 16 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf