Are there in-tank ethanol/gasoline ratio sensors?
Are there in-tank ethanol/gasoline ratio sensors?
(OP)
Are there some sensors submerged that can measure the approximate ethanol to gasoline ratio in the fuel tank?
So far I've only heard of exhaust sensors.
Is there a more direct way to measure this ratio?
Maybe some sensors still in R&D stage?
So far I've only heard of exhaust sensors.
Is there a more direct way to measure this ratio?
Maybe some sensors still in R&D stage?





RE: Are there in-tank ethanol/gasoline ratio sensors?
----------------------------------------
The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.
RE: Are there in-tank ethanol/gasoline ratio sensors?
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: Are there in-tank ethanol/gasoline ratio sensors?
RE: Are there in-tank ethanol/gasoline ratio sensors?
RE: Are there in-tank ethanol/gasoline ratio sensors?
Bill
RE: Are there in-tank ethanol/gasoline ratio sensors?
RE: Are there in-tank ethanol/gasoline ratio sensors?
RE: Are there in-tank ethanol/gasoline ratio sensors?
RE: Are there in-tank ethanol/gasoline ratio sensors?
Thanks for your replies guys.
What do you mean by unreliable?
Is it that they are inaccurate or that they break down?
I actually designed a sensor some years back that would do this. It was a no-moving-part fuel-level sensor that with a few extra line of code in the processor (a small microcontroller) could also measure ethanol or detect water. Adding the feature didn't require any additional parts. Got a patent (which was assigned to the employer). However that employer never did any additional development. Got a lot of complements from others who worked with the measurement technology used. Promised "$1 plus other considerations" from the employer, but never even saw the $1. At least I got a line in my resume.
Would you mind disclosing more details on this patent? Maybe the patent number?
I assume you measured electric conductance didn't you?
I seem to recall that ethanol conducts electricity slightly better than alkanes. Did fuel additives fool the sensor?
Well if you want a sensor specific to ethanol and nothing else, that would be a gas chromatograph. The gas drier is isopropyl alcohol and it maybe a good thing to sense it as ethanol rather than gasoline.
Accurate but isn't it too large and heavy for a car?
Maybe some ionizer and detector might help?
Maybe small amounts of a slightly radioactive element (like those in smoke detectors, coupled with a simple detector?
RE: Are there in-tank ethanol/gasoline ratio sensors?
http://www.haltech.com/flex-fuel-sensor-explained/
----------------------------------------
The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.
RE: Are there in-tank ethanol/gasoline ratio sensors?
RE: Are there in-tank ethanol/gasoline ratio sensors?
http://www.conti-online.com/www/automotive_de_en/t...