National Instruments NI USB-621x manual Glossary

Glossary

Numbers/Symbols

%	Percent.
+	Positive of, or plus.
–	Negative of, or minus.
±	Plus or minus.
<	Less than.
>	Greater than.
≤	Less than or equal to.
≥	Greater than or equal to.
/	Per.
º	Degree.
Ω	Ohm.

A

A	Amperes—the unit of electric current.
A/D	Analog-to-Digital. Most often used as A/D converter.
AC	Alternating current.
accuracy	A measure of the capability of an instrument or sensor to faithfully indicate
	the value of the measured signal. This term is not related to resolution;
	however, the accuracy level can never be better than the resolution of the
	instrument.
ADE	Application development environment.

© National Instruments Corporation G-1 NI USB-621x User Manual