8. Sample Bias and Channel 1 Drive: The Channel 1 Bias Drive is used in all SPM experiments to set
the Bias level on the sample. This block also provides the modulation of the bias when performing
spectroscopic measurements.
9. Scan Area Window: The Scan Area Window item is connected to the XYZ outputs of a Scan
Processor. Most microscope configurations will only have a single Scan Area Window. Multi-probe
systems may have more than one of these items.
10. R9 Status: This is a special R9s Hardware Item. Its purpose is to provide synchronization
information to different parts of the software.
11. Approach Items: The UHV300 uses the PPC200. This component is USB controlled and
connected into the R9 Controller's PC. Its purpose is to distribute the High Voltage Inertial Drive
Signals to multiple piezo segments of the Beetle scan head. Please note that this item may not be
present for different microscope types.
Please review Appendix F, Approach for information about how to configure the Approach behavior.
12. Hardware Watcher: This item allows the user to control special behavior in the event of certain
conditions going out of a safe operating range and is required to use the PLL. The provided IHL files
will have a Global Procedure implemented that uses this feature.
13. Inventor SDK: This item configures the software to listen for control commands sent from
external applications. This allows the user to control the R9 with other software such as Matlab and
LabVIEW.
14. Transient Recorder: The Transient Recorder enables the R9 to collect the raw ADC readings as
seen by the two 100 MHz ADC. It can also be used to calculate FFT with up to 50 MHz bandwidth.
15. Ramp Spectroscopy Settings: This item creates a Ramp Spectroscopy Settings panel in the
Dashboard for quick access to Spectroscopy parameters.
16. Lock-in Amplifier: The R9 controller has multiple built-in lock-in amplifiers that can be used in
many different types of experiments.
1.5 Initial Testing of the R9 Controller
The initial testing of the R9 Controller will take place in two stages: Offline Testing and Online Testing.
Offline Testing is completed before connecting the microscope to the R9 Controller. Online Testing will be
performed after the cables and microscope have been connected to the R9 Controller, but while the scan
head is far from the sample.
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