Hello,
Any sensor to work decently in high humidy enviroment? Plan is to measure water level on a marine aquarium, the sensor will be positioned 2cm above the water level beaming into a floating flat material. Since water runs at 26 Celsius degrees there is plenty of evaporation which may affect the sensor?
I may be able to isolate the sensor and target floating piece into some plastic tube to minimize the evaporation area but wondering if I can go without.
Or a better way to do it?
Thanks.
Except for the humidity you must also take corrosion into account.
The easiest way is to make several measurements and create a lookup table.
What is the accuracy and precission you need to measure? 1 mm 1 cm?
Of course a lookup table to pair dinstance to volume would be useful or just compute the volume using the formula, width and depth a constant and height delta measured by sensor.
The issues I foresee are the stability under high humidy and the corrosion as you've said.
I think I saw somewhere some waterproof sensor but was expensive.
There are many easier ways than ultrasound to do this.
michinyon:
There are many easier ways than ultrasound to do this.
With all the respect, you could refrain from posting a reply or do it with some useful information, your above statement is completely pointless without any idcication of those 'many easier ways'.
cio74:
michinyon:
There are many easier ways than ultrasound to do this.With all the respect, you could refrain from posting a reply or do it with some useful information, your above statement is completely pointless without any idcication of those 'many easier ways'.
No it is not useless. It is telling you there are other ways.
Now you might have considered some of these other ways in which case you would reply, well I have thought about X and Y Aref three other ways.
Or you might not have considerd anything in which case your reply should be,
Thanks I haven't thought of other ways what would you suggest?
So I would respectfully ask you to change your attitude.
Grumpy_Mike:
cio74:
michinyon:
There are many easier ways than ultrasound to do this.With all the respect, you could refrain from posting a reply or do it with some useful information, your above statement is completely pointless without any idcication of those 'many easier ways'.
No it is not useless. It is telling you there are other ways.
Now you might have considered some of these other ways in which case you would reply, well I have thought about X and Y Aref three other ways.
Or you might not have considerd anything in which case your reply should be,
Thanks I haven't thought of other ways what would you suggest?So I would respectfully ask you to change your attitude.
With all the respect, another post which makes no sense and does not address the topic. I'm wondering if some posts are made just to increase the number/rank.
Anyway, to make some of my own post and don't fall into the same category:
Thanks I haven't thought of other easy ways what would you suggest?
I suggest that you alter your attitude or you will be give very short shrift here.
You have not said what you want to do with this measurement but I am assuming that you want to check for change in water level.
If so I would suggest this sensor.
Mike, I have said marine aquarium. Like any other marine aquarium this contains salt. We both know, salt is corrosive. You have suggested a device which, from the datasheet:
"Description
The eTape sensor is a solid state, continuous (multi-level) fluid level sensor for measuring levels in water, non-corrosive water based liquids and dry fluids (powders)."
Your device will not work for my project.
Do you know other easy method ?
Thanks.
The comments section on the spark fun site from the makers say:-
The non-corrosive liquids referenced in the datasheet was meant to address strong acids and bases. The eTape sensor envelope is made of PET, the same stuff water bottles are made from. The concern is not the sensor envelope itself but the adhesive that we use to form the envelope which is susceptible to solvents, acids, etc. The chemical version of this sensor will do away with the adhesive. Since the eTape is a solid state sensor and has no moving parts it is not affected by salt creep, etc.
They further say:-
This sensor will hold up well to salt water/marine environments.
Of course I have read that section, couldn't find any link between thank nickname and the producer. Even so, they should update their datasheet if this is the case, there are plenty of concerns about salt/marine environment.
Assuming I do not like this method for some reason, any other ideas?
Google
float liquid level sensor