Voltage driven tube scanner. (a) Open loop with signal precompensation. (b) Closed loop with displacement feedback.
Simplified diagram of a generic charge source.
Grounded load dc accurate charge amplifier.
Test for voltage/charge dominance.
Piezoelectric tube dimensions (in millimeters).
Charge amplifier low-frequency tracking performance. Measured from the charge reference signal (V) to the instrumented load voltage accross a dummy load.
Charge dominance bandwidth. Measured from the internal tube strain voltage to the load voltage.
Relationship between an applied voltage and the resulting tube displacement. ( ramped sinusoidal input).
Relationship between an applied charge reference and the resulting tube displacement. ( ramped sinusoidal input).
Low-frequency scanning reference and resultant tube displacement with additive DC offset.
Article metrics loading...
Full text loading...