Breaking News
Comments
Newest First | Oldest First | Threaded View
JLodger
User Rank
Rookie
re: Use capacitive sensing to Implement reliable liquid level sensing—Part I
JLodger   7/10/2014 2:10:26 PM
NO RATINGS
In reply to Tom bits and bytes, there actually have been many advances in the use of capacitive technology in this area. One water level sensor that uses this is found here: http://vegetronix.com/Products/AquaPlumb/. Just to see how far capacitive technology has gone, this particular sensor actually can sense other things than water. As far as I can tell, it is able to sense any liquid - both polar and nonpolar. 

Like you, I too am amazed at just what technology can do these days.

Hope you found this interesting!

JBD2013
User Rank
Rookie
re: Use capacitive sensing to Implement reliable liquid level sensing—Part I
JBD2013   3/21/2013 2:05:28 PM
NO RATINGS
Good article. In some non-critical application you could use a simple n cheap discrete delta-sigma modulator build form 555 series or opamps.

Sachin Gupta
User Rank
Rookie
re: Use capacitive sensing to Implement reliable liquid level sensing—Part I
Sachin Gupta   7/27/2012 4:15:28 PM
NO RATINGS
No doubt it is not a very innovative way to measure liquid level. But, the main point is the ease-of-use compared to a solution that can be done using opamp. Today technology has evolved and allows liquid level sensing to be implemented using controllers that are primarily manufactured for user interface. Key benefit of using these devices over opamp based implementation is ease-of-use in terms of calibration, integration and reliability. Moreover, a single controller can integrate liquid level sensing, user interface and control functions i.e. a humidifier can be implemented using one-chip.

elektryk321
User Rank
Rookie
re: Use capacitive sensing to Implement reliable liquid level sensing—Part I
elektryk321   7/27/2012 10:38:35 AM
NO RATINGS
This metod is not so innovative. Aproximatelly ten years ago I have seen a DIY/Hobby kit which implemented this method. Using few opamps module was able to measure liquid level and convert it to voltage. Probably industrial implementations were a little longer on the market.

Tom bits and bytes
User Rank
Rookie
re: Use capacitive sensing to Implement reliable liquid level sensing—Part I
Tom bits and bytes   7/19/2012 5:36:00 PM
NO RATINGS
It is an interesting piece and talks about an innovative method to measure liquid level. Looks like this solution can be installed even in existing tanks that are in use and that also without much efforts. I believe it will make designers' life easy because it will take away the pain of sensor installation inside the tank and maintenance issues. I am curious to read next part of this article. Expecting to see some more insights on liquid level sensing using this technology.

Display Alliance
User Rank
Rookie
re: Use capacitive sensing to Implement reliable liquid level sensing—Part I
Display Alliance   7/19/2012 4:33:32 PM
NO RATINGS
Trackback: http://www.displayalliance.com/news-categories/2012/7/19/use-capacitive-sensing-to-implement-reliable-liquid-level-se.html



Flash Poll
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

Fist Bumps & the Zombie Apocalypse
Max Maxfield
22 comments
Are you concerned about the possibility of a Zombie Apocalypse or do you scoff at the thought of such an eventuality? If the latter, would you be surprised to hear that the US military has ...

Rishabh N. Mahajani, High School Senior and Future Engineer

Future Engineers: Don’t 'Trip Up' on Your College Road Trip
Rishabh N. Mahajani, High School Senior and Future Engineer
8 comments
A future engineer shares his impressions of a recent tour of top schools and offers advice on making the most of the time-honored tradition of the college road trip.

Larry Desjardin

Engineers Should Study Finance: 5 Reasons Why
Larry Desjardin
41 comments
I'm a big proponent of engineers learning financial basics. Why? Because engineers are making decisions all the time, in multiple ways. Having a good financial understanding guides these ...

Karen Field

July Cartoon Caption Contest: Let's Talk Some Trash
Karen Field
151 comments
Steve Jobs allegedly got his start by dumpster diving with the Computer Club at Homestead High in the early 1970s.

Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)