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Auxiliary Signal Paths

The NanoScope V Controller facilitates integration of SPM imaging with other laboratory equipment by providing the experimenter with numerous auxiliary input and output signal path options. Access to these features is clustered in the lower left of the front panel of the NanoScope V Controller, shown in Figure 1.

The auxiliary signal path options are:

Figure 1: Close-up of Connectors, Front of NanoScope V Controller

For example, a scan rate of 1 Hz generates 2 line-sync pulses per second, one for trace and one for retrace.

Refer toTable 1 for more detail concerning the auxiliary connectors.

Connector Label Connector Type Purpose
Digital 1 and 2 BNC, > 1 MΩ impedance Bandwidth 5 MHz. See the Generic Lock-In section of the NanoScope Software 8.15 User Guide
Lock-In 1 and 2 BNC, < 1 kΩ impedance Inputs for user-supplied signals: range: –10 V to 10 V DC bandwidth: 500 Hz to 5 MHz
Lock-In 3 BNC, < 1 kΩ impedance Inputs for user-supplied signals: range: –10 V to 10 V DC bandwidth: 5 Hz to 50 kHz
Out 1 (EOF output) BNC, > 1 MΩ impedance TTL reference signal for image end-of-frame: negative-going pulse, +5 V to 0 V after every frame, up and down
Out 2 (EOL output) BNC, > 1 MΩ impedance TTL reference signal for image end-of-line: negative-going pulse, +5 V to 0 V after every trace and retrace
DDS 1, 2 and 3 (Lockin Ref. output) BNC, > 1 MΩ impedance Programmable (to 10 V) output
General I/O Input 1 and 2 BNC, < 1 kΩ impedance Inputs for user supplied signals: range: –10 V to 10 V DC bandwidth: DC to 10 kHz
General I/O Output 1 and 2 BNC, > 1 MΩ impedance Analog outputs that can be used to monitor selectable NanoScope V Controller signals. See Signal Access Software of the NanoScope Software 8.15 User Guide

Table 1: Auxiliary Connectors

To image an external analog signal:

  1. Before connecting external lines to the analog input connectors, verify that the impedance of the external device is less than 1 kΩ and that the voltage does not exceed ±10 V DC.
  2. Connect the external signal line to Analog Input 1, 2 or 3 on the front panel of the NanoScope V Controller.
  3. In one of the three Channel panels, select for Data Type: Input 1, 2 or 3 (see High Resolution Imaging section of the NanoScope Software 8.15 User Guide).

To obtain synchronization signals:

  1. Before connecting any external equipment to any synchronization connector (DDS 1, 2 or 3), verify that each external device (e.g., oscilloscope) has an impedance of 1 MΩ or larger.
  2. Connect the device to the desired sync output connector on the front panel of the NanoScope V Controller.
Caution/Attention/Vorsicht: Never connect two outputs together.

 

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