Reg: contactless sensors for liquids

@barath-uBS8aH • Oct 20, 2024

Oct 20, 2024

935

hey all
i am was thinking about making a contact-less sensor to measure the amount of diesel in a open tank. i need a 0-10V DC input from the sensor so that i can take it to the PLC or any other things. i get the idea with the ball valve concept but to get the 0-10VDC calibrated is something i don't know. or is there any other simpler idea.
Kindly clarify

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chithrachennai

@chithrachennai-Xvts5V • Aug 13, 2012

u can use optical sensor but its lil costly... uv sensor is also there...
Ramani Aswath

@ramani-VR4O43 • Aug 13, 2012

Freescale semiconductors situated on the ring road between Marathhalli and KR Puram have a range of MEMS based pressure sensors. You can easily put together an PLC compatible system that can measure liquid level. I use them a lot for various biomedical applications.
However, if you are considering for diesel I would design an indirect non invasive system using the same sensor but with an inert gas intermediate stage to avoid any fire hazard.
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barath rajamani

@barath-uBS8aH • Dec 7, 2012

thank you but for industrial harsh conditions and for diesel related issues, we would not go for MEMS, i think (or can we?)... but i am working on a DIY stuff for this.. will see if itworks out..
lal

@lal-R60Xjx • Dec 7, 2012

-deleted-

Reason: Replied without reading previous posts 😐 came to know that I repeated the same thing said above.
Ramani Aswath

@ramani-VR4O43 • Dec 7, 2012

bobgalle
thank you but for industrial harsh conditions and for diesel related issues, we would not go for MEMS, i think (or can we?)... but i am working on a DIY stuff for this.. will see if itworks out..
I am currently using one of these for sensing steam pressure for a sterilizer. To avoid steam and condensate from reaching the sensor I have used a small diameter silicone rubber tube filled with silicone oil at the sensor end. No problem in the two years use so far.