Filter
Top Products
Glossary
©
National Instruments Corporation G-3 NI 5911 User Manual
DC direct current
default setting a default parameter value recorded in the driver. In many cases, the default
input of a control is a certain value (often 0) that means use the current
default setting.
differential input an analog input consisting of two terminals, both of which are isolated from
computer ground, whose difference is measured
double insulated a device that contains the necessary insulating structures to provide electric
shock protection without the requirement of a safety ground connection
drivers software that controls a specific hardware instrument
E
EEPROM electrically erasable programmable read-only memory—ROM that can be
erased with an electrical signal and reprogrammed
F
filtering a type of signal conditioning that allows you to filter unwanted signals from
the signal you are trying to measure
G
gain the factor by which a signal is amplified, sometimes expressed in decibels
H
hardware the physical components of a computer system, such as the circuit boards,
plug-in boards, chassis, enclosures, peripherals, cables, and so on
harmonics multiples of the fundamental frequency of a signal
Hz hertz—per second, as in cycles per second or samples per second
CBIHWum.book Page 3 Thursday, October 29, 1998 1:56 PM