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Automatic micro flow rate measurement using a modified computer mouse device

  • National Institute of Advanced Industrial Science and Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations

Abstract

An automatic system for measuring micro flow rate of liquid is presented. A computer mouse device was modified as an optical encoder for this purpose. All the sensing and electrical signal are processed by the mouse device. A very simple structure has been realized using the PS/2 mouse interface to get electric power and transfer the data to computer directly. The data treatment was programmed using the Microsoft Visual Basic. This system shows a useful solution for micropump's evaluation. Because this device works in digital On/Off principle, there is no lower limit for measurable range of flow rate and bidirectional measurement is also possible. The full measurable range is up to 115 μl/min, at which the measurement precision is assured within ±2%. The resolution is depended on the sampling speed of computer (0.05 second). The device is not affected by the change of temperature or thermal capacity of fluids. It is an alternate as a tool to calibrate mass flow meter. Automatic parallel measurements in multi-channel are also possible.

Original languageEnglish
Title of host publication1st Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology - Proceedings
EditorsAndre Dittmar, David Beebe
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages288-291
Number of pages4
ISBN (Electronic)0780366034, 9780780366039
DOIs
StatePublished - 2000
Externally publishedYes
Event1st Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology, MMB 2000 - Lyon, France
Duration: 12 Oct 200014 Oct 2000

Publication series

Name1st Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology - Proceedings

Conference

Conference1st Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology, MMB 2000
Country/TerritoryFrance
CityLyon
Period12/10/0014/10/00

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