I'm liking these posts.

I have a water tank that I want to add guaging to, and so far all the other solutions require adding something inside the tank.

This means it has very high moisture content, and it requires very good sealing that has to last many years.

Using this method it could be outside and being plastic will be suitable for this solution.

Thanks, and keep working through the issues.

Mark

I've received help on TI's e2e forum.

TDC1000-TDC7200EVM errors when importing Register file generated by design tool - Ultrasonic Sensing Forum - Ultrasonic …

An application expert has detected why the file that I generated on the Webench doesn't put my evaluation kit in a working modus, and has made corrections to the configuration.

I'll post back when I tried the solution...

The application specialist acknowledged the issue with loading files generated by the Webench utility,

but the core issue - that the utility's settings don't put the board in a working configuration, hasn't been resolved yet.

I've updated the e2e topic with my test results:

http://e2e.ti.com/support/sensor/ultrasonic/f/991/t/478399

I'll keep posting progress here...

Do you have an idea of how to use TDC 1000 without evaluation module?

Do you have an idea of how to use TDC 1000 without evaluation module?

shubhamg, you would use a similar design as the evaluation module. You'd need a replacement for all the functional blocks in the evaluation module.

Have a look at the reference design section for this IC

Thanks Jan Cumps. I am quite new in electronics.It would be great if you can help me. I would like to know that if I have an arduino, tdc 1000 and ultrasonic transducer(10PCS/LOT Ultrasonic sensor waterproof type diameter TR40 16(TCT40 16) Receiving and Transmitting on a chip-in Sensors f… ). Will it be possible to operate with arduino mini or uno and the mentioned ultrasonic sensors? What else would I need? Also is it necessary to put these sensors at the bottom, can they put in top also?

The sensor is not ok. That's a 40 KHz sensor. For liquids you need MHz range transducers.

TI's proposed sensors:

I have to pass on the suitability of the Arduino family. That will be driven by their capability to "measure the time interval between the rising edge of the START pulse and the rising edge of the STOP pulse produced by the TDC1000" with suficient precision for your use. It will have to measure times down to the low µs range.

Check this document for more info:

TDC1000 | Ultrasonic Analog Front End | Ultrasonic Sensing | Online datasheet

Thanks jancumps . Can you tell if I can measure the air in the container with these sensors or not, that might also serve my purpose? Also, the diagram you gave doesn't mention any resistors or capacitors in the circuit. Would I need one while making my own circuit?

shubhamg The links I gave above do point to documents that mention the capacitors and resistors needed - the TI reference designs. I don't know if you 'll find designs that are closer to your needs than those TI reference designs.

I checked if you can measure µs with an Arduino. The standard micros() method has a resolution of 4µs, and that's on the border of what you need for your project. There's a library, untested by me, that's able to get to 0.5µs.

I have no experience on measuring air. The article above, about measuring liquids, is the only experience I have on the susbject of ultrasonic measurements.

The evaluation kit that I received for this road test was my very first step into this subject - a step that I enjoyed a lot.