Analog Input >> Frequency >> Voltage >> Hysteresis

NI-DAQmx C Reference Help

Edition Date: January 2019

Part Number: 370471AM-01

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Data Type: float64
Description: Specifies in volts a window below Threshold Level. The input voltage must pass below Threshold Level minus this value before NI-DAQmx recognizes a waveform repetition at Threshold Level. Hysteresis can improve the measurement accuracy when the signal contains noise or jitter.


You can get/set/reset this property using:

  DAQmxGetAIFreqHyst

  DAQmxSetAIFreqHyst

  DAQmxResetAIFreqHyst

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