B&K Precision 4045B - Manual - Manual (Page 57)

57
execution point rate is the execution time between
each point in the waveform. The total time taken to
run one period of the waveform is
given by:
number of points X rate
Because the output frequency is a function of the rate
and the number of points being executed, the formula
is given as:
𝑓𝑟𝑒𝑞𝑢𝑒𝑛𝑐𝑦 =
1
𝑁𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑝𝑜𝑖𝑛𝑡𝑠 𝑥 𝑟𝑎𝑡𝑒
For example, to set the output frequency to 1000Hz,
given the number of data points used for the
waveform output is 1000, calculate:
𝑟𝑎𝑡𝑒 =
1
1000 𝑝𝑜𝑖𝑛𝑡𝑠 𝑥 1000 𝐻𝑧 = 1𝜇𝑠
EXAMPLE: Setting the Output Frequency
To set the output frequency of a 1000 point waveform
in execution memory to 1000Hz, set the rate to 1us:
ACTION KEYSTROKES
Step 1: Set the output rate to 1 us
(equivalent to 1000 Hz output
frequency
PARAMETER
F1:RATE
1
kHz/us