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FrozenGate by Avery

Using lasers to measure water level

Who says the Tank is lying down and not standing up...
Who says the inside of the tank is reflective...

There is not enough information to come up with a reasonable design.


Jerry
 
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jawdrop.gif
Wow, nice job.
 
lasersbee said:
If Cola was transparent and water was opaque... maybe the camera was
showing a negative image...:thinking: I don't know....

@FML... I think the OP said his "senior design project" was:-
"to be able to use a laser to measure the water level in a cylindrical tank"


Jerry
Click to expand...

Hey, I can read. I was just letting him know of his options.
 
Hey.... no need to get defensive.... FML...:yh:

I could test the level of water in the tank with a wooden stick...
but part of the criteria was not... to use a wooden stick...

I was just pointing that out in case you missed it... no offense intended...
BTW.... I am well aware that you can read... :cool:

Jerry
 
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nuthuram said:
Hello
I am a noob to this forum and also to lasers. I am hoping to find some help with my senior design project for my bachelors.

I wont go into details about the project. Ill just mention the part i need help on.

I need to be able to use a laser to measure the water level in a cylindrical tank. the idea is that when the water level gets too low, more water will be pumped into the tank. Can i build a laser from computer devices that will enable me to do so?

Please help me i am desperate


thank you:thanks:
Click to expand...

Water has an index of refraction of about 1.33. A twenty foot column of water would have an optical length 26.6 feet. Subtract the empty length from the measured length and divide by the index of water - the index of air.

You could use refraction of a beam, but ripples would play hell with the measurement.
 
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I can type this big.

He didn't say why he need a laser, so he might as well use any other method. If however that's he wants then thunderbird's method seem pretty legit.
 
As for orientation, my method should work regardless of the tank being horizontal or vertical, you just need to adjust the angle for that. Although Tech_Junkie's/Hallucynogenyc's method of refracting the beam at an angle should work as well, the basic differece here is the placement of the laser/sensor...
 
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ThunderBird89 said:
As for orientation, my method should work regardless of the tank being horizontal or vertical, you just need to adjust the angle for that. Although Tech_Junkie's method of refracting the beam at an angle should work as well, the basic differece here is the placement of the laser/sensor...
Click to expand...

That was Hallucynogenyc. I'm still a n00b..all I can offer is an outside of the box suggestion.
 
Tech_Junkie said:
That was Hallucynogenyc. I'm still a n00b..all I can offer is an outside of the box suggestion.
Click to expand...

Oh, yeah, sorry about that. But it was you first brought up the idea of refraction, and Hallucynogenyc elaborated on it. When I reread the thread I was looking for the first mention, but you both deserve the credit.

BTW, I'm a 'noob' too :)
 
I must admit, ugliest ... lifeform I've ever seen... :D

Pardon me to speak up, but I find replying with pictures slightly unneccesary. Sure, they can add humour to a post, which is neccesary, but not in a seroius discussion. No offense meant, and that said, on with the discussion. Waiting for the thread starter to speak up on which solution to use :)
 
Nothing wrong with a little comic relief while waiting. These posts are really just wasted energy till he comes back and fills us in with some info so we can continue the discussion. We can "what if" all day. A little laugh breaks things up.
 
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