Glossary

AI

1. Analog input.

 

2. Analog input channel signal.

AI GND

Analog input ground signal.

AI SENSE

Analog input sense signal.

analog

A signal whose amplitude can have a continuous range of values.

analog input signal

An input signal that varies smoothly over a continuous range of values,

 

rather than in discrete steps.

analog output signal

An output signal that varies smoothly over a continuous range of values,

 

rather than in discrete steps.

analog signal

A signal representing a variable that can be observed and represented

 

continuously.

analog trigger

A trigger that occurs at a user-selected point on an incoming analog signal.

 

Triggering can be set to occur at a specific level on either an increasing or

 

a decreasing signal (positive or negative slope). Analog triggering can be

 

implemented either in software or in hardware. When implemented in

 

software (LabVIEW), all data is collected, transferred into system memory,

 

and analyzed for the trigger condition. When analog triggering is

 

implemented in hardware, no data is transferred to system memory until the

 

trigger condition has occurred.

AO

Analog output.

AO 0

Analog channel 0 output signal.

AO 1

Analog channel 1 output signal.

AO 2

Analog channel 2 output signal.

AO 3

Analog channel 3 output signal.

AO GND

Analog output ground signal.

application

A software program that creates an end-user function.

arm

The process of getting an instrument ready to perform a function. For

 

example, the trigger circuitry of a digitizer is armed, meaning that it is

 

ready to start acquiring data when an appropriate trigger condition is met.