China Electronics Technology Instruments AV3672 Series, Руководство пользователя

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6 Measurement Optimization
6.7 Increase of Data Point Number
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Fig. 6.17 Setting of Intermediate Frequency Bandwidth
6.7 Increase of Data Point Number
The data point or “point” refers to the sampling results of next value after one stimulus. You can define the number
of measurement points within one sweep.
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The trace can be swept through a large number of data points so as to better define the device response.
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The majority of data processing is done between adjacent points. One “sweep” refers to the measurement
results of a series of continuous data points, corresponding to the stimulus value within one sequence.
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The default number of points of each sweep is 201.
The sweep time of the analyzer can be changed according to the number of sweep points and the scale. However,
the total measurement period will not change according to the number of sweep points and the scale. Instead, it is
affected by other factors, such as the flyback time, data calculation, formation time, etc. Refer to the technical
specifications for the influence of the point number and other settings on the sweep time.
Prompt
Use of data points
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In order to obtain the best trace resolution, use the maximum number of data points.
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In order to realize rapid throughput, use the minimum number of data points, which can help to achieve the
acceptable accuracy.
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In order to find the optimal number of data points, find a value with measurement results subject to no
significant difference from the required number of measurement points.
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In order to ensure the accurate measurement calibration, the number of calibration points should be the same
as that of measurement points.
1) Specific operations
Menu path: [Stimulus] > [Sweep] > [Number of Points] .
Directly click the required point number in the [Number of Points] sub-menu, or click [Custom...] , enter the value
in the [Number of Points] dialog box, or select the value with the arrow.