hi
to complete my electrical project I need to get some feedback from
the beverage containers.
I am only looking for -NOT EMPTY / EMPTY signal, meaning i do not want to know exact amount of liquid present.
I was researching and found QT114 IC but I was unable to order it because it was being sold in minimum 50 quantity and I am not even sure if it will work.
I need around 20 of these sensors. My alcohol dispesing machine is currently made so that the original alcohol bottles maybe used by inverting them and only putting a special cap on them. So I am looking for any solution that i can use that will work with any bottle ?
for example an IR transmitter and reciever will not work (i think) because of having different shade/thickness of glass/label position on bottles.
The cap that i am using, I can actually put some probe etc through it so that the inside of the bottle can be accessed.
Earlier I used a conduction method where I had two probes and 5V was attached to them and when there was liquid there was small current flow but when liquid flowed out the voltage changed /(on comparator) and high was received. However this was objected to by the teacher on the grounds that some beverages may not conduct ? / It might not be FDA approved to pass current through the beverage.
The idea i have used right now is to use two contact and have a floating steel ball, and when it comes down as liquid flow it connects the two contacts and current flows...(again i will hv to defend that it is safe to do so)
So any suggestions guys ?
IF we have to stick something through the bottles (right now for display we are using 20oz water bottles). I would do it as a last option, to make a hole on the side of bottle to put something like a float switch etc.
so what will work, i dont think ultrasonic would reflect off the surface ? and even if it does i would need microcontroller/ microcontrollers and program them to altert etc.?
so any suggestions /help
if you know any websites where I can buy QT114 IC from right now...i need 2-3 to check if it works and then around 20. (so site that are offering bulk are not an option)....Will the QT114 IC EVEN WORK ?
which ICs /sensor (infra/ultrasonic/proximity) would work ?
pleasssssssssse help
thanks in advance.
to complete my electrical project I need to get some feedback from
the beverage containers.
I am only looking for -NOT EMPTY / EMPTY signal, meaning i do not want to know exact amount of liquid present.
I was researching and found QT114 IC but I was unable to order it because it was being sold in minimum 50 quantity and I am not even sure if it will work.
I need around 20 of these sensors. My alcohol dispesing machine is currently made so that the original alcohol bottles maybe used by inverting them and only putting a special cap on them. So I am looking for any solution that i can use that will work with any bottle ?
for example an IR transmitter and reciever will not work (i think) because of having different shade/thickness of glass/label position on bottles.
The cap that i am using, I can actually put some probe etc through it so that the inside of the bottle can be accessed.
Earlier I used a conduction method where I had two probes and 5V was attached to them and when there was liquid there was small current flow but when liquid flowed out the voltage changed /(on comparator) and high was received. However this was objected to by the teacher on the grounds that some beverages may not conduct ? / It might not be FDA approved to pass current through the beverage.
The idea i have used right now is to use two contact and have a floating steel ball, and when it comes down as liquid flow it connects the two contacts and current flows...(again i will hv to defend that it is safe to do so)
So any suggestions guys ?
IF we have to stick something through the bottles (right now for display we are using 20oz water bottles). I would do it as a last option, to make a hole on the side of bottle to put something like a float switch etc.
so what will work, i dont think ultrasonic would reflect off the surface ? and even if it does i would need microcontroller/ microcontrollers and program them to altert etc.?
so any suggestions /help
if you know any websites where I can buy QT114 IC from right now...i need 2-3 to check if it works and then around 20. (so site that are offering bulk are not an option)....Will the QT114 IC EVEN WORK ?
which ICs /sensor (infra/ultrasonic/proximity) would work ?
pleasssssssssse help
thanks in advance.