|NI-DCPower (English | Japanese)|
The NI PXI-4132 supports discrete aperture times that are based on the configured power line frequency of the device.
The following table lists valid configurable aperture times for the NI PXI-4132. If you select an aperture time that is not listed in the table, NI-DCPower coerces the value to the next highest valid aperture time.
|60 Hz||50 Hz|
|8||133 ms||160 ms|
|4||66.6 ms||80.0 ms|
|2||33.3 ms||40.0 ms|
|1 (default)||16.6 ms (default)||20.0 ms|
|1/2||8.33 ms||10.0 ms|
|1/4||4.16 ms||5.00 ms|
|1/8||2.08 ms||2.50 ms|
|1/16||1.04 ms||1.25 ms|
|1/32||520 µs||625 µs|
|1/64||260 µs||312 µs|
Use the niDCPower Configure Aperture Time VI or the niDCPower_ConfigureApertureTime function to set the aperture time of the device. Use the niDCPower Configure Power Line Frequency VI or the niDCPower_ConfigurePowerLineFrequency function to set the power line frequency of a specified channel of the device.
For information about how aperture time is related to acquiring measurements and triggering on the NI PXI-4132, refer to NI PXI-4132 Measurement Configuration and Timing and NI PXI-4132 Triggers and Events.