Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

"Electronic Tongue" tastes fluids.

08.02.2002


Several years ago an “electronic nose” was developed at Linköping University in Sweden. It was based on a number of different gas sensors and programmed to differentiate between various substances in air. This nose is now being joined by a corresponding sensor for fluids, the “electronic tongue.” The principle behind the “electronic tongue” is that a number of electrodes are submerged in the fluid. When a current is turned on across the electrodes the response varies depending on the liquid’s content of electromagnetically active substances and/or charged particles. The idea is the sensors should be able to be used to monitor quality in the production of fluid products.



In a dissertation, researcher Susanne Holmin has tested the “electronic tongue” on liquid washing detergent and on cultured milk. Her results show that it is important to find the right combination of electrodes of various materials (copper, gold, iridium, silver, platinum, etc.) and various metering methods (metering conductivity, current, and/or voltage) to maximize the information attained.

Before the “tongue” can be used in full scale industrial applications, further development needs to be carried out to ensure that the process functions over the long term, even if the electrodes build up deposits of particles in the fluids. But industries are keenly interested, and a variant of the “tongue” has just started to be tested at a dairy in the southern province of Skåne.


Susanne Holmin has done her work within the framework of S-Sence, Swedish Sensor Center, in Linköping. This is a so-called Center of Excellence where university scientists and industrial entrepreneurs pursue joint research questions, in this case focusing on sensor technology.

Ingela Björck | alphagalileo
Further information:
http://www.liu.se

More articles from Information Technology:

nachricht Predictive touch response mechanism is a step toward a tactile internet
24.01.2020 | The Optical Society

nachricht The easy route the easy way: New chip calculates the shortest distance in an instant
23.01.2020 | Tokyo University of Science

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Integrate Micro Chips for electronic Skin

Researchers from Dresden and Osaka present the first fully integrated flexible electronics made of magnetic sensors and organic circuits which opens the path towards the development of electronic skin.

Human skin is a fascinating and multifunctional organ with unique properties originating from its flexible and compliant nature. It allows for interfacing with...

Im Focus: Dresden researchers discover resistance mechanism in aggressive cancer

Protease blocks guardian function against uncontrolled cell division

Researchers of the Carl Gustav Carus University Hospital Dresden at the National Center for Tumor Diseases Dresden (NCT/UCC), together with an international...

Im Focus: New roles found for Huntington's disease protein

Crucial role in synapse formation could be new avenue toward treatment

A Duke University research team has identified a new function of a gene called huntingtin, a mutation of which underlies the progressive neurodegenerative...

Im Focus: A new look at 'strange metals'

For years, a new synthesis method has been developed at TU Wien (Vienna) to unlock the secrets of "strange metals". Now a breakthrough has been achieved. The results have been published in "Science".

Superconductors allow electrical current to flow without any resistance - but only below a certain critical temperature. Many materials have to be cooled down...

Im Focus: Programmable nests for cells

KIT researchers develop novel composites of DNA, silica particles, and carbon nanotubes -- Properties can be tailored to various applications

Using DNA, smallest silica particles, and carbon nanotubes, researchers of Karlsruhe Institute of Technology (KIT) developed novel programmable materials....

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

11th Advanced Battery Power Conference, March 24-25, 2020 in Münster/Germany

16.01.2020 | Event News

Laser Colloquium Hydrogen LKH2: fast and reliable fuel cell manufacturing

15.01.2020 | Event News

„Advanced Battery Power“- Conference, Contributions are welcome!

07.01.2020 | Event News

 
Latest News

Towards better anti-cancer drugs: New insights into CDK8, an important human oncogene

28.01.2020 | Life Sciences

Rice lab turns trash into valuable graphene in a flash

28.01.2020 | Materials Sciences

AI can jump-start radiation therapy for cancer patients

28.01.2020 | Health and Medicine

VideoLinks
Science & Research
Overview of more VideoLinks >>>