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Ultrasonic Transducer Driver
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Engineering & Manufacturing > Electrical

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May 22, 2012
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Job Description

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  • Posted: Sun, May 20, 2012
  • Time Left: Closed
  • Location: Anywhere
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  • Start: Immediately
  • Budget: Less than $500
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we are looking for a design that drives the Massa TR-89 Model 23 transducer to maximise its output Sound Pressure Level. We need to interface this design into an AVR micro circuit which means that ideally the transducer will be driven by a MOSFET via PWM. Although the Massa data sheet gives an example of using a square wave, we think that it might be better to use a sine wave ie the MOSFET drives a transformer. However we are open to suggestions and ideas.

Attached is the Massa data sheet on this device. We also have an example of a simple commercial circuit that uses this device (cannot attach more than one here).

Please only apply if you have capability in this area ie analog design, RC and tuned circuits.
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Added 20 MAY 2012, 6:45 AM EDT
Sorry...Elance interface not allowing attachments
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Added 20 MAY 2012, 6:48 AM EDT
OK...now it is. Also attached example circuit of a commercial device using this...

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Job ID: 30654381
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