Selection of ultrasonic level sensor and AFE for 1m-20m range

Alihussain Vohra

Prodigy 30 points

Other Parts Discussed in Thread: PGA460, TUSS4470, TDC1000, BOOSTXL-TUSS4470, BOOSTXL-TUSS4440

Hello,

I am looking for ultrasonic level sensor and AFE for 1m-20m range. Please direct me on the correct part number.

over 3 years ago

0 Isaac Lara over 3 years ago

TI__Mastermind 23045 points

Hello Alihussain,

Thank you for posting to the sensing forum. I am currently out of the office for a US holiday I will respond once I return on Wednesday. Thank you for the patience.

Best,

Isaac

0 Isaac Lara over 3 years ago in reply to Isaac Lara

TI__Mastermind 23045 points

Hello Alihussain,

Thank you for the patience. The sensors we typically recommend and more suited for this type of distance would be TUSS44x0 or PGA460. You did mention level in your post are you trying to measure the level of a liquid?

Best,

Isaac

0 Alihussain Vohra over 3 years ago in reply to Isaac Lara

Prodigy 170 points

Yes majorly liquid, but some times solid debris can also be there.

0 Isaac Lara over 3 years ago in reply to Alihussain Vohra

TI__Mastermind 23045 points

Hello Alihussain,

Thanks for the info. It would also mainly depend on what frequency you going to be using as well as what type of interface you prefer. PGA460 is mainly aimed towards making measurements over the air and provides a digital interface that can give you the results via one of its communication methods. TUSS44x0 devices work great over the air and if you want to use high frequency transducers such as the max 1MHz for higher resolution TUSS4470 allows for this. The interface is a bit different because it provides a conditioned analog output of the ultrasonic signal which you can then sample and process in whichever way you want. I think this might be the best solution for your use case since your liquid may have some debris during your measurement.

Best,

Isaac

0 Alihussain Vohra over 2 years ago in reply to Isaac Lara

Prodigy 30 points

Hi Issac,

Just to close this, can you confirm upto what meters this solution can work?

which part is best for the water level measurement?

any design document?

0 Isaac Lara over 2 years ago in reply to Alihussain Vohra

TI__Mastermind 23045 points

Hello Alihussain,

I am not able to directly answer this question, mainly because the distance depends on a lot of factors. Transducer driving voltage, transducer frequency, measurement topology. These are just some of the factors that influence your measurement range.

If you are trying to get measurements up to 20m my recommendations would be to look at TUSS44x0 devices. The direct drive on TDC1000 is only able to generate 5V max the transducer which does not equate to a large measurement range.

I am not 100% sure what your final applications is but here are some documents you might find helpful:

Ultrasonic Sensing Basics: https://www.ti.com/lit/an/slaa907d/slaa907d.pdf

Ultrasonic sensing basics for liquid coupled applications: https://www.ti.com/lit/an/snaa220a/snaa220a.pdf

Using Ultrasonic Sensing to monitor level in tanks: https://www.ti.com/lit/an/snaa270/snaa270.pdf

How to select and mount a transducer for liquid coupled applications: https://www.ti.com/lit/an/snaa266a/snaa266a.pdf

Ultrasonic sensing for fluid identification and contamination: https://www.ti.com/lit/an/snaa265/snaa265.pdf

Direct driven BOOSTXL-TUSS4470: https://www.ti.com/tool/BOOSTXL-TUSS4470

Transformer driven BOOSTXL-TUSS4440: https://www.ti.com/tool/BOOSTXL-TUSS4440

Best,

Isaac

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Selection of ultrasonic level sensor and AFE for 1m-20m range