I bought the above sensor (it is on its way). I wanted to try it as one of a couple of methods of measuring fluid level in a tank. I also plan on using infrared sensor and a pressure sensor in an upside down sealed tube. I want to see what will be the most reliable. With the ultrasonic sensor above will I need any other circuitry to filter, convert, amplify the signal or something else? I have not found anything referenced on the internet.
Thank you,
Anthony
Sensor element is useless without a driver board.
Search for "Waterproof JSN SR04T" on ebay.
Leo..
Thank you, I have already bought one of those. I was trying to find a sensor with a metal enclosure and a different communication method. The JSN SR04T uses TX and RT for its communication and I also had an A6 Thinker board that I will be using and I think it uses the same communication method and I don't think I can have two items using that. The think the A6 has other options for communication but I haven't found searches that people got it working.
Anthony
aiannar974:
Thank you, I have already bought one of those. I was trying to find a sensor with a metal enclosure and a different communication method. The JSN SR04T uses TX and RT for its communication and I also had an A6 Thinker board that I will be using and I think it uses the same communication method and I don't think I can have two items using that. The think the A6 has other options for communication but I haven't found searches that people got it working.Anthony
Personally I have dismissed the JSN SR04T because it is not reliable sometimes and also has a higher minimum detection distance of >20cm. And its not fully enclosed in an enclosure like you pointed out. I personally switched to this sensor Sealed Waterproof ultrasonic/distance small blind sensor arduino Fully Genuine | eBay since it is completely enclosed and sealed therefore fully waterproof and has 2 transducers instead of 1 hence lesser minimum distance of ~3cm.
aiannar974:
I want to see what will be the most reliable.
For reliability one can't go past an everyday float switch.
Naturally you may not be able to use this for some other as-yet unmentioned reason.
The fluid pressure at the bottom of the tank (which can be measured outside the tank if there is an outlet, under no-flow conditions) is an extremely reliable method of measuring the liquid level.
Fluid pressure is directly proportional to height, regardless of tank diameter.
Thank you everyone - I am trying to get the actual amount of fluid so a float won't work. The container is a 275 gal tote. There is an outlet at the bottom that is being used but a guess I could us a splitter on that to measure pressure. Does the pressure need compensated with atmospheric pressure? What is this type of sensor called? Is is a pressure transducer? The fluid is acid, I will need to find something that will hold up.
Thank again,
Anthony
Does the pressure need compensated with atmospheric pressure?
Not if you buy a gage (or gauge, spelling varies) type of sensor.
The fluid is acid
There are pressure sensors designed for that and other very harsh environments. High quality ones tend to be expensive.
Anything you put inside the tank, or exposed to acidic vapor won't function for long (maybe not even minutes) unless specifically designed for an acidic environment.