|NI-SCOPE (English | Japanese)|
Record length refers to the number of samples, or data points, the digitizer acquires for each channel in a single acquisition.
To determine record length, call the niScope Actual Record Length VI or the niScope_ActualRecordLength function. You can also obtain the record length using the Actual Record Length property or the NISCOPE_ATTR_HORZ_RECORD_LENGTH attribute.
Record length limits the maximum duration of a single-shot acquisition. For example, with a 1,000-sample record and a sample rate of 20 MS/s, the duration of acquisition is 50 µs (the number of points multiplied by the acquisition time per sample, or 1,000 x 50 ns. With a 100,000-sample record and a sample rate of 20 MS/s, the duration of the acquisition is 5 ms (100,000 x 50 ns).