Measurement Computing LogBook Series User Manual
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LogBook User’s Manual
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Glossary xiii
Sequencer
Defines and controls the state of the measurement system for each step of a scan.
Simultaneous Sample-and-Hold
An operation that captures samples from multiple channels at the same instant in time. The result is elimination
of time skew between measurement of individual channels.
Single-ended mode
Measurement of a voltage between a signal line and some reference that may be shared with other channels.
(Also see differential mode).
Trigger
An event to start a scan or mark an instant during an acquisition. A trigger can be a TTL signal, a specified
signal level, a button manually or mechanically engaged, or a software command.
TTL
Transistor-Transistor Logic (TTL) typically used to communicate logic signals where a logical 0 is defined by a
voltage level of <0.8V and logical 1 is defined as 2.4-5V.
Unipolar
A range of analog signals between zero and some positive value (e.g., 0 to 10 V).