This title appears in the Scientific Report :
2003
Please use the identifier:
http://dx.doi.org/10.1016/S0925-4005(03)00444-1 in citations.
Chemical sensor as physical sensor: ISFET-based flow-velocity, flow-direction and diffusion-coefficient sensor
Chemical sensor as physical sensor: ISFET-based flow-velocity, flow-direction and diffusion-coefficient sensor
An ion-sensitive field-effect transistor (ISFET), which is well known as a (bio-)chemical sensor is utilised for the development of a novel flow-velocity, flow-direction and diffusion-coefficient sensor. The proposed sensor presents a sensor-actuator system and consists of an ion generator and a pH...
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Personal Name(s): | Poghossian, A. |
---|---|
Berndsen, H. K. / Schöning, M. J. | |
Contributing Institute: |
Institut für Bio- und Chemosensoren; ISG-2 |
Published in: |
Sensors and actuators |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2003
|
Physical Description: |
384 - 390 |
DOI: |
10.1016/S0925-4005(03)00444-1 |
Document Type: |
Journal Article |
Research Program: |
Materialien, Prozesse und Bauelemente für die Mikro- und Nanoelektronik |
Series Title: |
Sensors and Actuators B
95 |
Subject (ZB): | |
Publikationsportal JuSER |
An ion-sensitive field-effect transistor (ISFET), which is well known as a (bio-)chemical sensor is utilised for the development of a novel flow-velocity, flow-direction and diffusion-coefficient sensor. The proposed sensor presents a sensor-actuator system and consists of an ion generator and a pH ISFET that detects the in situ electrochemically generated H+- or OH--ions. A good linearity between the measured flow-velocity with the ISFET and the delivered flow rate of the pump was observed. Since the ISFET has a short response time in the millisecond range, it can be utilised as an excellent detector for the measurement of flow-velocity in a wide range. The experimental results of the determination of the flow-direction and diffusion-coefficient of ions with the ISFET are presented, too. (C) 2003 Elsevier B.V. All rights reserved. |