Nanosurf easyScan 2 AFM, Operating Instructions Manual

Page: 72 / 164

T
HE
S
IGNAL
M
ODULES
72
The Signal Modules
The Signal Modules consist of both electronics modules that are built into
the easyScan 2 controller and a break-out Connector that is externally
attached to the controller. The Signal Modules can be used for monitoring
the signals (Signal Module: S) and adding functionality to the easyScan 2
system (Signal Module: A). The Signal Module: A includes all the monitor-
ing functions of the Signal Module: S.
For information on installing the Signal Modules, refer to section
Installing
the Hardware (p.22).
Signal Module: S
The Signal Module: S can be used for monitoring signals from the AFM
with external instruments, such as Volt-meters, Oscilloscopes or Spectrum
Analysers. The signals are available on nine BNC connectors that are
labelled with their signal names. The signal names and their function are
listed in the table
Monitor Signals .
Signal name Function
X-Axis X-Position command of the Scanner. Is be affected by
Image X-Pos and the Imaging Area Rotation.
Y-Axis Y-Position command of the Scanner. Is be affected by
Image X-Pos and the Imaging Area Rotation.
Z-Axis Z-Position command of the Scanner. Is affected by the Z-
Controller output, Ref. Z-Plane, X- and Y-Slope.
Tip Voltage The voltage applied to the tip.
Approach The voltage that determines the speed of the approach
motor.
Excitation The oscillating voltage that is applied to the piezo that
excites the cantilever vibration.
Deflection The raw cantilever deflection signal, contains both the
static cantilever deflection and the cantilever vibration.
Monitor Signals