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PGA460: Automotive standard Ultrasonic sensor, HW/SW systems for harness NDT

Pradeep Nagaraj
Prodigy 10 points
Part Number: PGA460
Other Parts Discussed in Thread: TUSS4470

Hi,

Can we use PGA460 (Automotive standard) ultrasonic sensor and hardware for Nondestructive testing NDT? 

We have wiring harness as the testing medium. Also, it would be great to know the measurement range, DSP tuning etc.to suit the the Harness NDT.

Thanks & Regards,

Pradeep N

  • 0
    TI__Mastermind 22675 points

    Hello Pradeep,

    Thanks for posting to the sensors forum! 

    We have had customers use PGA460 for NDT before but it has not been regarding a wiring harness, so it may work but I am not certain what you are testing for on the wiring harness.

    It is difficult to define a measurement range for ultrasonic devices because the range is dependent on other factors such as transducer frequency, medium of travel, and driving voltage. If using a lower frequency such as 40kHz and large driving voltage you can achieve distances around 11-12m for large targets. For smaller objects and higher resolution you would want to use a higher frequency, but the issue with higher frequencies is that they do not carry as much energy as lower frequencies meaning they become attenuated over the air much faster so they are not able to travel as far. Lower frequencies will also penetrate through items much better while higher frequencies are not as efficient at this.

    As mentioned I dont have experience with a harness so I am not able to make many recommendations on that space or what would work best, but if you have any other questions please let me know to see if I can help out! As a side note another device that may be worthwhile looking into might be the TUSS4470, it is an analog out device capable of going to 1MHz. It does not have built in DSP like the PGA460 but it does offer a higher frequency if needed.

    Best,

    Isaac