Model 4200A-SCS Parameter Analyzer Reference Manual Section 13: LPT library function reference4200A-901-01 Rev. C / February 2017 13-109pulse_meas_timingThis command sets the measurement windows.Usageint pulse_meas_timing(int instr_id, int chan, double, StartPercent, doubleStopPercent, int NumPulses);instr_id The instrument identification code of the pulse card, such as VPU1 or VPU2chan Channel number of the pulse card: 1 or 2StartPercent Start location for measurements:• Spot mean measurements: Start location, specified as a percentage of thewidths for the amplitude and base level (see Details)• Waveform: Pre-data for the amplitude, specified as a percentage of theamplitude pulse duration (see Details)StopPercent Stop location for measurements:• Spot mean measurements: Stop location, specified as a percentage of thewidths for the amplitude and base level (see Details)• Waveform: Post-data for the amplitude, specified as a percentage of theamplitude pulse duration (see Details)NumPulses Number of pulses to output and measure (1 to 10,000)Pulsers4225-PMUPulse modesStandardDetailsUse the pulse_meas_timing command to set measurement timing. For spot mean measurements,portions of the amplitude and base levels are specified for sampling. For pre-data and post-datawaveform measurements, a percentage of the entire pulse duration is specified. See Measurementtiming (on page 5-74) for details on pulse measurement timing.The figure below shows example start and stop locations spot mean measurements are made. Threemeasured samples are taken on the amplitude and six samples are taken on the base level. The startand stop percentage values indicate the portions of the pulse that are sampled.Figure 504: Spot mean measurements example
