Difference between revisions of "Ultrasonic air transducers"
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Latest revision as of 16:51, 11 September 2015
MAXQ7667
- MAXQ7667 SOC Datasheet
- MAXQ7767 Evaluation Kit with Schematics
- MAXQ7667 User Guide (Sectoin 17 describes Ultrasonic Dist. Meas. Module)
- Above Datasheets suggest using Ultrasonic Transducers driven by a Transformer that is driven by a MOSFET in ON/OFF mode.
- Evaluation Kit Datasheet depicts the peripherals' schamatics on page 11.
Transducers
- Tx and Rx Separate Components, farnell, EUR14.24
- Tx and RX on Single Module, farnell, ~EUR 15
- Prowave USTransducers Range, Includes High Power Models, 200LM450 looks interesting
Transformers
- Transformer1, farnell, EUR8.33
- Transformer2, farnell, EUR10.62
- The two transformers above are not a preferred choice for this application.
Alternatives to MAXQ7667
- Texas Instruments, MSP430-based, farnell, <EUR5 (excl. peripherals)
- This system uses the TI MCU in conjunction with peripheral circuitry cimilar to that of the MAXQ7667. The schematic diagram is provided, along with the Assembly source code.
- It uses two separate Transducers,Tx and Rx.
- It does NOT use any Transformers.
- Key Peripherals: