A Microconductometer Utilizing Bipolar Pulse Method for Electro-Chemical Sensors

Author

Fujcik, L. ; Vrba, R. ; Prokop, R. ; Hubalek, J. ; Steffan, P. ; Hornochova, H.

Author_Institution

Dept. of Microelectron., BUT Brno, Brno

fYear

2008

fDate

13-18 April 2008

Firstpage

81

Lastpage

84

Abstract

The microelectronic measuring system for conductivity electro-chemical sensor measurement of liquid materials properties was designed in AMIS CMOS 0.7 mum technology. The main parts of the system are current source with switchable subranges, the sensor switches allowing change of the current polarity in compliance with the bipolar pulse method, which was developed specially for this measurement purposes at the Dept. of Microelectronics. The most important part of the system is a sensor voltage drop measuring circuit using opamp´s offset switched compensation.

Keywords

CMOS integrated circuits; electrical conductivity measurement; electrochemical sensors; microsensors; operational amplifiers; AMIS CMOS technology; bipolar pulse method; electrochemical sensor measurement; liquid material properties; microconductometer; microelectronic measuring system; opamp offset switched compensation; sensor switches; sensor voltage drop measuring circuit; Ambient intelligence; CMOS technology; Conductivity measurement; Current measurement; Material properties; Microelectronics; Pulse measurements; Sensor systems; Switches; Voltage; mixed analog-digital integrated circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Systems, 2008. ICONS 08. Third International Conference on

Conference_Location

Cancun

Print_ISBN

978-0-7695-3105-2

Electronic_ISBN

978-0-7695-3105-2

Type

conf

DOI

10.1109/ICONS.2008.59

Filename

4497101