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TDC1000-C2000EVM: TDC1000-C2000EVM

Sabina Ahn
Prodigy 20 points
Part Number: TDC1000-C2000EVM
Other Parts Discussed in Thread: TDC1000, TUSS4440, PGA460, BOOSTXL-PGA460, PGA460-Q1, MSP-EXP430F5529LP, ENERGIA

Hello,

I need to get the speed of sound in liquid nitrogen and other types of liquid. 

I am thinking to design the container: 10cm diameter and 30~50cm height, so I thought a strong transducer will be necessary.. I would like to test with TDC 1000, but I am not sure if this is okay.

1. Can I use TDC1000-C2000EVM with high power with an ultrasonic cleaning transducer such as this one (https://www.bjultrasonic.com/shop/40khz-50w-ultrasonic-cleaning-transducer-pzt4/)? I also have ultrasonic generators for 40khz, 28khz, and each transducer, do I need to use generator and TDC1000? how can I wire both? 

2.  Is TDC1000-TDC7200EVM no longer available? Between TDC1000-TDC7200EVM and TDC1000-C2000EVM, which one would be suitable for measuring the speed of sound in liquid?

  • 0
    TI__Mastermind 27950 points

    Hi Sabina,

    I do not recommend using the TDC1000 to measure the speed of sound through liquid. Because you need to excite a transducer with a large driver voltage (>100Vpp), I recommend that you consider using the PGA460 or TUSS4440. Both of these devices use a transformer driver mode to generate upwards of hundreds of volts at the transducer, so you can use the PZT-4 transducer you have linked to.

    For evaluation, you can order the BOOSTXL-PGA460, and replace the included Murata transducer with your PZT-4 transducer. The PGA460 is the most integrated solution to help offload MCU time of flight computation and simpify software development. Alternatively, if you do not want to use an integrated DSP as included in the the PGA460 to calculate the time of flight for you, you can use the BOOST-TUSS4440 paired with an external MCU or ADC to capture the time of flight externally.

    You can learn more about the differences of these two devices in the following document: Ultrasonic Sensing Basics

  • 0 in reply to Akeem Whitehead
    Prodigy 20 points

    Dear Akeem,

    Thank you very much for your advice. 

    I have one more question about this board. Is it possible to communicate with other software such as maxmsp or supercollider?

    Usually, when I use Arduino or esp, they can do serial communication between other software, but I have no idea if BOOSTXL-PGA460 can also support serial communication or is there any other way?

    And is the GUI only working in window? Is there any solution to use in mac? I would very much appreciate if you can give me any feedback.

    Thanks for your help!

    Best,

    Sabina 

  • 0 in reply to Sabina Ahn
    TI__Mastermind 27950 points

    Hi Sabina,

    The PGA460 is compatible with any 3.3V or 5.0V logic level microcontroller or serial interface with UART or SPU communication.

    The PGA460 Energia Library and Code Example was designed to be used by the TI LaunchPad series, but can be easily ported to Arduino also.

    The PGA460-Q1 EVM GUI software is exclusive to the MSP-EXP430F5529LP hardware and can only be run on Windows, so you will need to use the LaunchPad or Arudino supported Energia Library and Code Examples for PGA460 evaluation on a Mac. I strongly recommend you use the Windows based EVM GUI tool to help optimize your device settings, as this is a very visual process.