Microscopy
Controllers
PAGE 348
Specifications
ASC500 SPM controller
Z Controller
type
digital PI, anti wind-up
resolution
18 bit
bandwidth
50 kHz
control signal
any internal signal channel
features
external modulation input, setpoint modulation, invertable
feedback gain and output polarity, PI gains in physical units
Phase Locked Loop (PLL)
features
2 PI controllers with graphical interface
frequency resolution
0.14 µHz
frequency range
1 kHz .. 2 MHz
Q Control
type
electronic, phase controlled
efficiency
decrease or increase of Q by factor 10 typical
Frame View
display modes
2 frame views, 2 line views, easy generation of additional frames possible
options
oversampling, autosave (png, ASCII, bcrf), line subtraction
line view with up to 16 subsequent lines
selection tools
frame alignment, frame centering, zoom function,
path mode, grid mode
Spectroscopy
physical arrangement
point/line/grid spectroscopy (up to 1024 x 1024 pixel)
spectroscopy types
z-spectroscopy, bias spectroscopy, soft spectroscopy
(all GUI parameters), dI/dV with internal Lock-In
averaging
25 µs up