3C66: Difference between revisions

3C66 (view source)

45 bytes added , 3 July 2010

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-The Tektronix 3C66 Carrier Amplifier is designed to amplify signals from transducers
+The Tektronix 3C66 Carrier Amplifier is a plug-in introduced in 1963 for 560-series scopes.
-such as strain gauges.  The impedance of the transducers varies based on, for example,
+It is designed to amplify signals from transducers such as strain gauges, whose
-mechanical strain.  These transducers are usually connected in a bridge circuit.  The
+impedance varies based on, for example, mechanical strain.
-C66 drives the bridge with a 25kHz "carrier" signal, which is modulated by the relative
+These transducers are usually connected in a bridge circuit.
-impedances of the arms of the bridge. The resulting signal is amplified and
+The 3C66 drives the bridge with a 25kHz "carrier" signal,
-envelope-detected by the 3C66, producing a vertical deflection proportional to the
+which is modulated by the relative
+impedances of the arms of the bridge.
+The resulting signal is amplified and
+envelope-detected by the 3C66,
+producing a vertical deflection proportional to the
 the measured quantity (strain, for example).