looking for an elecronic device (module or discrete component) which
is capable of measuring the speed of an approaching object (a car). It
could acheive this by ultrasonic / radar or some such means.
I would like the device to ouput a voltage or current, analog or
digital output indicating the speed of approach, in the range 5-50
miles per hour. Alternatively, if a simpler device were available that
simply 'triggered' above a certain approach speed, that would be fine
too. The trigger speed I'm looking for would be something from 5 to 10
mph.
I would intend to integrate this circuit component or module into a
larger circuit design, which would handle the recognition of an
overspeed condition and fire power transistors for the illumination of
a home - produced LED sign display.
But all I am looking for in this question, is a source, preferably in
the UK, for the speed sensing 'radar' component.
Ideal question for a researcher with a copy of the RS components
catalog, or similar, maybe? Thanks. There will be a tip for a
successful find which meets the criteria above. |
