Working on a project using TDC1000-TDC72000-EVM (also access to TDC1000-C2000-EVM) and I’m having a problem.
The goal is to measure liquid level contained (stainless steel tank) through the bottom surface. Tank is around 1/16in(1.5-2 mm) thick and liquid level is at max 20in(500mm) high. Also the tank’s bottom is slightly convex and there is an extraction pipe in the middle going through to the bottom of the tank so there is no ideal place to put it. Liquid is prone to foaming and so not ideal to be measured from above. The container also is pressurized so can’t modify the tank.
Already tried using the following transducers: Audiowell US0014 and Steminc SMD15T21R111WL(came with the TDC7200-kit). As a adhesive I have used cyanoacrylate based quick glue(as per app.note: SNA266A). Also Steminc transducer has been tested without dampening and hot glue as a dampening material.
With these I can measure with an oscilloscope the signal and see that there is an echo but it is slightly too low that the TDC1000 can get a lock on to it.
What steps I could take to get a reliable reading from the TDC? Do you have recommendations for other transducers?
(One option considered has been adding amplifiers, but I would like to avoid adding voltage booster to the mix.)
Thanks.
