Campbell CR5000 Especificações descarregar pdf (Página 116)

Section 6. Data Table Declarations and Output Processing Instructions

6-22

Point Crossing

Source

2nd Dim

Source

Action

1 0.5 .7 First value, no counts

2 1.2 1.8 Add one count to first crossing,

second 2D bin, the signal crossed

Histogram:

2D < 1.25 1.25<2D<2.25 2.25<2D<3.25

Cross 1 01 0

Cross 1.5 00 0

Cross 3 00 0

3 1.4 .7 No levels crossed, no counts

4 0.3 .7 Crossed a level but was falling

edge, no counts

5 3.3 2.7 Add one count to first, second, and

third crossing bins in the third 2D

bin, the signal crossed 1, 1.5 and 3.

Histogram:

2D < 1.25 1.25<2D<2.25 2.25<2D<3.25

Cross 1 01 1

Cross 1.5 00 1

Cross 3 00 1

Note that the first bin of the second dimension is always “open” . Any value

less than the specified boundary is included in this bin. The last bin of the

second dimension is always “closed”. It only includes values that are less than

its upper boundary and greater than or equal to the upper boundary of the

previous bin. If you want the histogram to be “open” on both ends of the

second dimension, enter an upper boundary for the last bin that is greater than

any possible second dimension source value.

The crossing levels and the boundaries for the second dimension are not

specified in the LevelCrossing instruction but are contained in variable arrays.

This allows the levels to be spaced in any manner the programmer desires.

The arrays need to be dimensioned to at least the same size as the dimensions

of the histogram. If a one dimension level crossing histogram is selected (1

entered for the second dimension) the name of the Crossing Array can also be

entered for the 2nd Array to avoid declaring an unused array. The program

must load the values into these arrays.

The array specifying the boundaries of the second dimension is loaded with the

upper limits for each bin. For example, assume the second dimension is 3, and

the upper limits loaded into the array containing the second dimension

boundaries are 1, 3, and 6.

The value of each element (bin) of the histogram can be either the actual

number of times the signal crossed the level associated with that bin or it can

be the fraction of the total number of crossings counted that were associated

with that bin (i.e., number of counts in the bin divided by total number of

counts in all bins).

1 2 ... 111 112 113 114 115 116 117 118 119 120 121 ... 237 238

Comentários a estes Manuais

Sem comentários

Campbell CR5000 Especificações Página 116

Comentários a estes Manuais

Manuais e produtos relacionados com Medição, teste e controlo Campbell CR5000