Figure 6.1Pentagon of Power

After last chapter’s discussion of amplifiers, we have completed the lowest level of the Pentagon of Power. We know how motors work, and how to vary the speed of a motor with an amplifier. If we are building a winch, at this point it is sitting on the bench powered up with perhaps a temporary controller such as a knob and switch. We’re itching to get that machine working with a slick control system and write some cues, but before we can hook up a control system we must first figure out how to measure the movement of the machine. The automation control system will ...

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