DocumentCode :
1220385
Title :
Capacitive Modulation of Micropipet Impedance
Author :
Klingler, Doran R.
Author_Institution :
Utah Biomedical Test Laboratory
Issue :
2
fYear :
1977
fDate :
3/1/1977 12:00:00 AM
Firstpage :
129
Lastpage :
134
Abstract :
Quantitative theoretical and experimental evidence is presented suggesting that the saline-filled, glass micropipets employed in microvascular pressure measurements behave electrically as simple, parallel resistor-capacitor combinations in which the capacitance is dependent upon the length of the pipet in contact with the conductive fluid surrounding the tip. Changes in the apparent pipet impedance arising from modest alterations in the immersion length are sufficient to cause zero-level shifts in the measured pressure.
Keywords :
Biomedical measurements; Bridge circuits; Conductivity; Electric resistance; Glass; Immune system; Impedance; Pressure measurement; Testing; Voltage; Blood Pressure Determination; Electric Conductivity; Mathematics; Microcirculation; Models, Theoretical;
fLanguage :
English
Journal_Title :
Biomedical Engineering, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9294
Type :
jour
DOI :
10.1109/TBME.1977.326116
Filename :
4122658
Link To Document :
بازگشت