MTS Series 793 Application - Manual (Page 446)

MTS MultiPurpose TestWare®
Data Display Process
Other Process Descriptions 446
Reduced Rate—This option causes the buffer to accept acquired data until it
fills, perform a decimation of every other point, shift data, accept new data at
one-half the rate used on the previous pass (every point on the first pass, every
second point on the second pass, every fourth point on the third pass, and so
forth), and repeat. This option results in data resolution that is constant
regardless of the number of times the buffer fills.
First pass: When the buffer fills the first time, it accepts every point of
acquired data until the buffer is full, then performs a decimation to the entire
buffer by removing every other point. The retained points are shifted to the
front of the buffer to form a contiguous block, leaving the back half of the
buffer empty and ready to receive new data.
Second pass: When the buffer fills the second time, it accepts every other point
of acquired data until the buffer is full, then performs a decimation to the entire
buffer by removing every other point. The retained points are shifted to the
front of the buffer as before.
Third pass: When the buffer fills the third time, it accepts every forth point of
acquired data until the buffer is full, then performs a decimation to the entire
buffer by removing every other point. The retained points are shifted to the
front of the buffer as before.
Subsequent passes: The process is repeated until stopped, with the factor used
by the buffer to accept new data doubling with each subsequent pass, and the
decimation always removing every other point in the buffer.
Plot Setup Tab (part 5 of 7)
I TEM D ESCRIPTION