I have a wter tank in my house.It is already controled by digital level controler(with three iron rods dip in water) but i want to use infrared sensor to sense the water level & dismiss iron rods.
2007-09-02 07:30:31 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Other - Science
I want to make this infrared sensor for detect the preset min & max level not contineously and i want to make a circuit to sense the alternating rays not contineous.
2007-09-02 08:59:52 · update #1
I dont know why you want infrared?? there are many easier and cheaper ways to do such a simple thing. Is there a reason for wanting infrared?
2007-09-02 10:58:10 · answer #1 · answered by Mike M 4 · 1⤊ 0⤋
Infrared Water Level Sensor
2016-12-14 07:00:42 · answer #2 · answered by ? 4 · 0⤊ 0⤋
The best way I can think of would be to use ultrasonic sound to measure the height of water in a tank. But if you have to use IR, then I can think of a few ways that might work.
Set the emitter and detector at an angle like the letter V so that at a certain level the IR light beam will reflect off the surface of the water and into the detector. You might need to set up more than one to tell if the level is going up or down.
Or, if the tank is transparent, perhaps you could shine the light horizontally through the tank and detect when the meniscus passes in front of the emitter. I would think that would slightly reduce the light level to the detector. Or maybe you could measure the slight loss that the water would cause instead of shooting through air. You could do that with the sensors inside or outside the tank.
If you could use longwave IR, you could put the emitter and detector in the tank, and when they became submerged, the water would absorb the longwave IR. This would be much harder with regular shortwave IR LEDs though. The change in absorbtion would probably be pretty small.
For that matter, if you could use a longwave detector, you could just read the temperature change of the water in the tank.
2007-09-02 16:36:58 · answer #3 · answered by I don't think so 5 · 0⤊ 0⤋
If you are using Warrick sensors, or something similar, they are extremely reliable. I've been using 3 sets for over 30 years without a single problem. You probably will not get that reliability with an infrared sensor, especially without frequent maintenance.
2007-09-03 05:24:34 · answer #4 · answered by Frank N 7 · 0⤊ 0⤋
can u tell me what kinda sensors do you possess and how many u plan to use. Whether u want to detect continuos change in water level or discreet.
2007-09-02 07:57:55 · answer #5 · answered by lilmaninbigpants 3 · 0⤊ 0⤋
need more info! what kind of water tank? And what it is used for.
2016-03-13 01:27:24 · answer #6 · answered by ? 4 · 0⤊ 0⤋