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Ultrasonic Radar For A Home PC System
Beginning of essay
One of the fastest changing and most expensive fields, is that of
technology. Our computers, printers, modems, and much more is being
outdated faster than anything else in the world. Just as we buy a new
computer that does what we want, the industry comes out with a new option
on a smaller and bet ....
Middle of essay
....parts. The transducer
(Fig. 1) acts as a microphone and a speaker. It emits an ultrasonic pulse
then waits for the echo to return. The ranging board is the second part
(Fig. 2). This board provides the high voltages required for the transducer,
sensitive amplifiers, and control logic. Since R1 is variable it controls
the sensitivity of the echo detector. A stepper motor rotates the
transducer to get a 360o field of view. For entire assembly see Figure 3.
An Experimenter is hooked up to the.... |
| Number of words: 2068 |
Approximate pages: 8 |
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