Problem: No signal change.
I need to measure the fuel level in an oil tank from the top, I'm trying to use the TDC1000-BSTEVM.
Sensor housing construction:
1: Both the transmitter and receiver are mounted on a 0.04" thick disk of aluminum with loctite super glue.
2: The disk is attached to a PVC threaded coupler with Silicon to provide vibration dampening.
3:The coupler is then set into a hole in the top of a five gallon bucket.
when I run the GUI I see no change in the TOF measurement when I add water, when I look at the signals with the scope I see the start pulse and stop pulse and the signal to the comp in, but when I add water I see no change at all. I'm using the default settings. I'v made sure the HV is turned on for TX1.
The way I have the sensors mounted should be no different than if mounted directly to the top of the tank. Is it the glue, the settings.
I also tried the TDC1000-TDC7200EVM, I mounted the sensor that came with the eval board to the bottom of a 44oZ wawa cup, same results no signal change as I add water.
At this point I'm not looking for accuracy, just getting the thing to register a change would be helpful.
Thanks in advance,
Dave
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