GW Instek GSM-20H10, Руководство пользователя

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COMMAND SYNTAX
204
reading in a calculation for Source V Measure V will
cause a NAN result. Example using Source I
Measure V configuration: :calc:math (volt * curr)
Calculate power using voltage measurement and I-
Source value. After a calculation is configured and
enabled, the results are displayed when source-
measure operations are performed. Use the :data?
Command to send the results to the computer.
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Vectored math
By incorporating vectors, you select which readings
to use for the math calculation. After all programmed
source-measure operations are completed, the math
calculation(s) are performed using readings indicated
by the specified vectors.Vector numbers are enclosed
in brackets ([]), and start at 0. Thus, vector 0 is the
first reading in the array, vector 1 is the second
reading in the array, and so on. The largest vector
number in the expression defines the vector array
size.For example, assume the GSM is programmed to
perform 10 source-measure operations, and the
following vectored math calculation is used:(volt[3] -
volt[9]), The above expression defines a vector array
that is made up of 10 readings. Since the GSM is
programmed to perform 10 source-measure
operations, the calculation will yield one result every
10 SDM cycles. The 4th voltage reading (vector 3) and
the 10th voltage reading (vector 9) are used for the
calculation.
Now assume that the GSM is configured to perform
20 source-measure operations. Since the vector size is
still 10, two 10-reading arrays will be created. The
calculation will now yield two results, one for each
array.
The first result, as before, is based on the fourth and
10th readings of the first array. The second result is
based on the 14th and 20th readings. These are the
fourth (vector 3) and 10th (vector 9) readings of the
second array.