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In Reply to: Analog computers rely on negative feedback posted by andy_c on September 22, 2014 at 21:21:11:
In the mid 1970's when microprocessors weren't powerful enough and mini computers were too costly in some applications, we used op-amps for computational building blocks.
Analog signals from various transducers, after being conditioned by instrumentation amplifiers, were input into specialized custom designed 'analog computers' to return results in realtime. The biggest problems were trimming input offset to zero and strategically placed temperature compensation components to counter drift. And yes, we used multi-turn pots and gear reduction dials along with large analog meters to display values. ;-)
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Follow Ups
- RE: Analog computers rely on negative feedback - AbeCollins 09:47:40 09/26/14 (4)
- You look younger in your picture. (nt) - Old Listener 01:01:22 09/27/14 (3)
- RE: You look younger in your picture. (nt) - AbeCollins 21:25:39 09/27/14 (2)
- RE: You look younger in your picture. (nt) - Old Listener 09:51:21 09/28/14 (1)
- RE: You look younger in your picture. (nt) - AbeCollins 20:23:37 09/29/14 (0)
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