Emerson Daniel 3410 Series Operation Manual page 24

Measurement
January 2019
Figure 4-2: Signal Analyzer - update rate, stack size, filter and emission rate
Terminology
• Sequence - a complete cycle of firing all enabled transducers in a single round of
transducer operation.
• Stacking - the process of modifying a sequence so that each individual transducer is
fired "x" times (where x equals the stack size) before the next transducer in the
sequence is fired.
• Stack size - the multiple of times each transducer is fired before the next transducer
within the sequence is fired. (When stacking is absent or disabled, the stack size is
actually 1, because each enabled transducer is fired once during the sequence. When
stacking is applied or enabled, it is applied increments of 2, 4, 8, and 16 and are the
only stack size choices, so that each enabled transducer is fired 2, 4, 8, or 16 times
before the next transducer in the sequence is fired.)
• Emission rate - the time elapsed before the next transducer in a sequence is fired,
regardless of stack size (minimum emission rate is 2 milliseconds with the Filter ON or
OFF). We recommend the default Filter setting, which is the OFF position.
• Stack emission rate - the time elapsed before a single transducer is re-fired when
stacking is enabled (minimum stack emission rate is 2 milliseconds with the Filter OFF).
• Chords inactive or active - the exclusion or inclusion of a chord-forming pair of
transducers in the sequence of transducer operation.
Update time - the time elapsed, in seconds, between each processing, or recalculation
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of data that is collected from sequences of transducer firings.
Batch period, or batch cycle - synonymous with Update time, as defined above.
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Operations manual
DAN-20057316
Operations manual