| Recent Answers from Dave Nyce |
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2008-11-19 capacitors, circuit stability: Your questions are somewhat general, and I'd need more info on what you're trying to do in order to give a more specific answer. But, for example, if you are using an R/C circuit to work as a low pass...
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2008-11-18 opamps, relays, pumps: In a voltage follower, I would not put a resistor in series with the op amp input (non-inverting input). But if a high input voltage is possible, then a series resistor could save the op amp from damage...
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2008-10-31 LVDT Modelling: Almost all LVDTs will work fine with an excitation frequency of 6 kHz. To test, connect a variable frequency generator across the primary. Connect the secondaries in the normal way (series, bucking)...
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2008-10-30 LVDT Modelling: I'd have to see the spec you're looking at to be sure. Most specs for an AC LVDT don't list the speed at which you can move the core. But they will list that for a DC LVDT, in which all of the driving...
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2008-10-30 LVDT Modelling: 600 Hz is a fairly low frequency for the excitation of an LVDT. The most common frequency used on all LVDTs is 2.5 kHz. Most LVDTs will work fine with an excitation frequency anywhere in the 1 kHz to...
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