I'm about to start playing with some ultrasound transducers (for =
measuring distance). Is anyone aware of any studies, research, or other =
information about the physiological effects of ultrasound from these =
transducers? I know they are used in a variety of equipment, but I've =
found nothing that talks about possible hazards from exposure to =
ultrasound.

I know ultrasound is used for foetal scanning, physiotherapy, Polaroid =
cameras, and so on, but there is no information about the levels used in =
such equipment, versus the output from transducers available from places =
such as Maplin in the UK.

Thanks, Steve.

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