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Optical systems to evaluate volume o...

Liu, Xin.

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Optical systems to evaluate volume of medical samples in opaque test tubes.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Optical systems to evaluate volume of medical samples in opaque test tubes./
作者:	Liu, Xin.
面頁冊數:	124 p.
附註:	Source: Dissertation Abstracts International, Volume: 72-09, Section: B, page: 5530.
Contained By:	Dissertation Abstracts International72-09B.
標題:	Mechanical engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3460341
ISBN:	9781124720753

Optical systems to evaluate volume of medical samples in opaque test tubes.
Liu, Xin.

Optical systems to evaluate volume of medical samples in opaque test tubes. - 124 p.

Source: Dissertation Abstracts International, Volume: 72-09, Section: B, page: 5530.

Thesis (Ph.D.)--The University of Utah, 2011.

Measuring volume in medical samples without removing the cap of the tube is an important first step in highly automated biomedical laboratories. The variations of liquid properties, tube material, and number as well as location of labels attached to the outside of the test tube are the key points that prevent use of most traditional methods. Research into optical level detection was conducted to resolve the above issues. The research focuses on the optical detection of liquid level and volume of medical samples in the test tubes that are covered by an unknown number of labels. It has been carried out at the Precision Design Laboratory in the Department of Mechanical Engineering at University of Utah since 2006. The project is funded by the ARUP Institute for Clinical and Experimental PathologyRTM (ARUP).

ISBN: 9781124720753Subjects--Topical Terms:

649730
Mechanical engineering.

Optical systems to evaluate volume of medical samples in opaque test tubes.
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245 1 0 $a Optical systems to evaluate volume of medical samples in opaque test tubes.
300 $a 124 p.
500 $a Source: Dissertation Abstracts International, Volume: 72-09, Section: B, page: 5530.
500 $a Adviser: Eberhard Bamberg.
502 $a Thesis (Ph.D.)--The University of Utah, 2011.
520 $a Measuring volume in medical samples without removing the cap of the tube is an important first step in highly automated biomedical laboratories. The variations of liquid properties, tube material, and number as well as location of labels attached to the outside of the test tube are the key points that prevent use of most traditional methods. Research into optical level detection was conducted to resolve the above issues. The research focuses on the optical detection of liquid level and volume of medical samples in the test tubes that are covered by an unknown number of labels. It has been carried out at the Precision Design Laboratory in the Department of Mechanical Engineering at University of Utah since 2006. The project is funded by the ARUP Institute for Clinical and Experimental PathologyRTM (ARUP).
520 $a This research mainly investigates optical methods that detect the liquid level through the side of the test tube. By analyzing the change of power of transmitted light, which passes through the sample, the location of the interface between air and liquid inside the test tube is determined.
520 $a To study the effect of loss of light through sample tubes, the propagation process is modeled and simulated through a ray tracing method. Experiments were conducted to verify the modeling and simulation.
520 $a In this research, two detection principles based on the light propagation principle were developed, and their application systems were prototyped. The first one is a Max/Min Level Detection System, which can verify the minimum and maximum liquid levels in test tubes by computing the power ratio of two wavelengths. The second system is referred to as a Volume Detection System, which takes into account the volume of the meniscus by identifying the height and position of the meniscus.
520 $a In order to determine the liquid volume in different types of test tubes by the liquid level, a machine vision system was developed to identify the type of tube and retrieve the relevant geometric data from a database. An experimental prototype was set up and experiments were conducted to verify the functionality of the system.
590 $a School code: 0240.
650 4 $a Mechanical engineering. $3 649730
650 4 $a Optics. $3 517925
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690 $a 0752
710 2 $a The University of Utah. $b Mechanical Engineering. $3 1675126
773 0 $t Dissertation Abstracts International $g 72-09B.
790 $a 0240
791 $a Ph.D.
792 $a 2011
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3460341