Title :
A method for liquid cryogen level measurement in cryopreservation containers
Author :
Keskin, Ali Ümit ; Koyuncu, Cihat
Author_Institution :
Biyomed. Muhendisligi Bolumu, Yeditepe Univ., Istanbul, Turkey
Abstract :
A simple liquid sensing and measurement system for determining the level of cryogen in a tissue cryopreservation container is described. Liquid-gas boundary determination is made by detecting a thermal transient of the series-connected light emitting diodes. An electronic control and display unit located on the outer wall of the container indicates the level of cryogenic liquid, and alarms the operator if it reaches a pre-determined critical level.
Keywords :
biomedical engineering; containers; cryogenics; level measurement; light emitting diodes; LED; cryogen level determination; cryopreservation containers; light emitting diodes; liquid cryogen level measurement method; liquid measurement system; liquid sensing system; liquid-gas boundary determination; thermal transient; tissue cryopreservation container; Containers; Cryogenics; Displays; Level measurement; Light emitting diodes;
Conference_Titel :
Biomedical Engineering Meeting (BIYOMUT), 2010 15th National
Conference_Location :
Antalya
Print_ISBN :
978-1-4244-6380-0
DOI :
10.1109/BIYOMUT.2010.5479866
