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i don't have a part number

Tarik MAHIOUZ
Prodigy 20 points
Other Parts Discussed in Thread: TDC1000

Hi, 

I'm interested in buying one of the evaluation modules for ultrasonic level sensing, the medium is a fluid in a vibrating environment.

My question is :

Can i use the TDC1000-BSTEVM with TDC1000-TDC7200EVM ?

Because i want to drive the piezoelectric transducer with ultrasonic waves going from 0.3 Mhz to 4 Mhz and  an amplitude going from 3.7 to 12 Volts.


regards.




TDC1000-BSTEVM Board   TDC1000-GASEVM  TDC1000-TDC7200EVM



  • 0
    TI__Mastermind 31655 points
    Hello,

    You cannot purchase the TDC1000-BSTEVM separately from the TDC1000-GASEVM. However, the TDC1000-GASEVM is not very different from the TDC1000-TDC7200EVM. The TDC1000-GASEVM users guide ( www.ti.com/.../sniu026a.pdf ) describes the differences between the board. In your case, the only changes you may need to make would be to change the filter components on the receive signal path to allow the proper frequencies the pass through.

    If you have not purchased an EVM yet, I recommend you get the TDC1000-GASEVM.

    Regards,
  • 0 in reply to Scott Cummins
    Prodigy 20 points
    Hi Scott,

    Thanks for your reply , i have some additional questions :

    1- Regarding the GUI :
    Are the RTD1 et RTD2 data saved on the data file ?
    In which format the data file is saved ?

    2- TDC1000-GASEVM:

    Can i drive the PZT with a voltage between 3,7V and 30V ( 5V or 12V for example) or it's either 3,7V or 30V ?

    Looking forward for your reply.


    Best regards,

    Tarik Mahiouz.
  • 0 in reply to Tarik MAHIOUZ
    TI__Mastermind 31655 points
    1. The calculated temperature value will show up in the temperature column on the data file if you have the temp measurement active in the graph tab, however you will not see the actual measured time between start and stop signals. If you wish to see the start and stop signals, you will need to run the TDC1000 in temperature mode, and then the data log will have the start to stop times from the RTD measurements.

    2. The BSTEVM will only supply the direct output of the TDC1000, or a boosted 30V signal. Unfortunately there is no way to adjust the output without modifying the external components for the boost regulator on the BSTEVM board. The schematic for the BSTEVM is included in the TDC1000-GASEVM users guide ( www.ti.com/.../sniu026a.pdf )

    Regards,