Measure RIS Distribution Calibration
- Updated2023-02-17
- 3 minute(s) read
Measure RIS Distribution Calibration
Takes an acquisition from a specified channel and retrieves the initial X value, which includes the time-to-digital conversion.
This node performs the acquisition by calling Read Waveform 2,000 times. The time-digital conversion should be a uniform distribution between two sample points, because triggers should occur randomly. To test this distribution, the distribution of initial X values is created. The percentage of triggers in the smallest bin of this distribution is returned for comparison to a specification to determine if random interleaved sampling (RIS) is operating correctly.
Inputs/Outputs
session in
The instrument handle that you obtain from Initialize External Calibration. The handle identifies a particular instrument session.
error in
Error conditions that occur before this node runs.
The node responds to this input according to standard error behavior.
Default value: No error
maximum time
The maximum time, in milliseconds, to allow for each acquisition.
Default value: 10000
channels
The channel(s) to calibrate.
Channel String Syntax
This input parameter has the following syntax options:
- A single channel, such as 0
- A list of channels, such as 0,1 or 3,2,1,0
- A range of channels, such as 0-7 or 0:7
- All channels, which is designated by an empty string
- A combination of channels from multiple instruments, such as PXI1Slot3/0,PXI1Slot3/2-3,PXI1Slot4/2-3
distribution size
The number of bins in the initial x distribution.
session out
Reference to the NI-SCOPE instrument session to pass to the next node in the program.
error out
Error information.
The node produces this output according to standard error behavior.
minimum bin percent
The percent of triggers in the minimum bin. Valid values are between 0 and 100.0
distribution array
The distribution of trigger times.