Differences

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--- stm:manual_stm [2009/05/18 13:03] – galli
+++ stm:manual_stm [2009/05/18 13:06] (current) – galli
@@ Line 2: / Line 2: @@
 ===== Connector scheme =====
 ===== Coarse approach working principle =====
-COARSE APPROACH: This STM employs a compact design where the Z-coarse and Z-fine motion of the tip is done by the same set of (shear) piezos. The same HV amplifier is used for Z-coarse and Z-fine. This means that the available voltage range has/can to be reserved for the Z-coarse and Z-fine motion, as  depicted in the figure here under:\\
+COARSE APPROACH: This STM employs a compact design where the Z-coarse (a slip-stick motor, 6 piezo stacks driven at the same time with the same waveform) and Z-fine motion of the tip is done by the same set of (shear) piezos. The same HV amplifier is used for Z-coarse and Z-fine. This means that the available voltage range has/can to be reserved for the Z-coarse and Z-fine motion, as  depicted in the figure here under:\\
 {{stm:approach.png?400}}\\
@@ Line 19: / Line 21: @@
   - APPROACH: Waveform: Parabola, Asymmetry: 0%
   - RETRACT: Waveform: Sawtooth, Asymmetry: 100%
+Typical cycle time is 200-250 μs.