From: Don Pearce
Subject: Re: Difference between AC adapter and charger?
Date: Thu, 24 Oct 2002 11:14:11 +0430
References: <_KIt9.74300$zE6.firstname.lastname@example.org> <_pJt9.153956$S8.email@example.com>
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On Thu, 24 Oct 2002 06:37:51 GMT, DarkMatter
>On Thu, 24 Oct 2002 05:40:05 GMT, "Ratch" Gave us:
>>"Don Pearce" wrote in message
>>> On Thu, 24 Oct 2002 04:36:09 GMT, "Ratch" wrote:
>>> > Quite so, but converter is more descriptive of an electric
>>> >which converts one type of energy (mechanical) into another kind
>>> >(electrical). The electrical energy supply changes the form, controls
>>> >flow , but does not change the energy type.
>>> That would be a transducer.
>> Good one! Although I have never heard of a turbine/generator at a
>>hydroelectric plant called that. Ratch
> A transducer is the moniker usually given any device that is
>typically used to monitor the physical activity in a given system.
> An IR resistor bolometer resolves heat to electrical output.
> A condenser microphone resolves air motion into electrical activity
> A strain gauge integrated circuit device, which is a small system
>unto itself, but operates as a transducer. It resolves pressure into
>an electrical signal.
> An LVDT position sensor resolves physical position into an impedance
> An IR Light sensitive receiver packaged just like the IR transmitter
>LED. They resolve digitally pulsed IR light into binary electrical
> A CCD array is an entire array of tiny transducers that get called
>"pixel elements" by us. They resolve optically corrected and focused
>color information into 2-D imagery.
In common usage, yes. I found a dictionary definition of transduction
" the process whereby a transducer accepts energy in one form and
gives back related energy in a different form"
That seems to about cover it.