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Piezoelectric Measurement System Comparison
Piezoelectric Measurement System Comparison

... • Laboratory type charge amplifiers currently available offer a wide range of signal augmentation choices such as filtering, ranging, standardization, integrating for velocity and displacement, peak hold and more - all conveniently contained in one package. • Charge amplifier gain is independent of ...
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... Due to parasitics in the amplifier, the power supply rejection of the positive supply also deteriorates with frequency, but this is less severe than what occurs with the negative supply. This causes an asymmetrical pulse response. Typically, a positive-going pulse edge will have a response determine ...
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Metadyne



A metadyne is a direct current electrical machine with two pairs of brushes. It can be used as an amplifier or rotary transformer. It is similar to a third brush dynamo but has additional regulator or ""variator"" windings. It is also similar to an amplidyne except that the latter has a compensating winding which fully counteracts the effect of the flux produced by the load current. The technical description is ""a cross-field direct current machine designed to utilize armature reaction"". A metadyne can convert a constant-voltage input into a constant-current, variable-voltage output.
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