Counter Input >> Period >> Measurement Specifications >> High Frequency >> Measurement Time

NI-DAQmx C Reference Help

Edition Date: January 2019

Part Number: 370471AM-01

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Data Type: float64
Description: Specifies in seconds the length of time to measure the period of the signal if Method is DAQmx_Val_HighFreq2Ctr. Measurement accuracy increases with increased measurement time and with increased signal frequency. If you measure a high-frequency signal for too long, however, the count register could roll over, which results in an incorrect measurement.


You can get/set/reset this property using:

  DAQmxGetCIPeriodMeasTime

  DAQmxSetCIPeriodMeasTime

  DAQmxResetCIPeriodMeasTime

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