Keysight B2900 User’s Guide, Edition 5 6-5Function DetailsMeasurement TimeMeasurement TimeMeasurement time depends on aperture time, measurement range, and othermeasurement conditions, and can be expressed by the following formula:Measurement time = Aperture time + Overhead timeAperture time is the time required for measurement, and does not include suchfactors as range change or data compensation, which would be the overhead time.Aperture TimeAperture time is the time required to acquire the measurement data. For accurate andreliable measurement, the aperture time should be increased.The aperture time is set by using the Measure Speed parameter on the Single view.See “Speed” on page 4-11.Overhead TimeOverhead time is the time required for range change, etc. This time depends on themeasurement condition, and cannot be specified. Major elements of the overheadtime are:• Range change time during measurement (when measurement ranging mode isset to AUTO)• Range change time at the start of a measurement (when the measurement rangeis less than the compliance value)To Control Source/Measure TimingThe source output and measurement timing can be controlled by the followingparameters. See Figure 6-1. This figure shows an example of sweep output. For abias output, focus the shape of a sweep step only.1. Source delayThe source delay time is defined as the time from trigger to start of a sourceoutput.
