National Instruments Computer-Based Instruments Digital Oscilloscope for PCI NI 5911 Bedienungsanleitung PDF herunterladen (Seite 49)

Glossary

NI 5911 User Manual G-2 ni.com

AC coupled the passing of a signal through a filter network that removes the

DC component of the signal

ADC analog-to-digital converter—an electronic device, often an integrated

circuit, that converts an analog voltage to a digital number

ADC resolution the resolution of the ADC, which is measured in bits. An ADC with16 bits

has a higher resolution, and thus a higher degree of accuracy, than a 12-bit

ADC.

alias a false lower frequency component that appears in sampled data acquired

at too low a sampling rate

amplification a type of signal conditioning that improves accuracy in the resulting

digitized signal and reduces noise

amplitude flatness a measure of how close to constant the gain of a circuit remains over a range

of frequencies

attenuate to reduce in magnitude

bbit—one binary digit, either 0 or 1

Bbyte—eight related bits of data, an eight-bit binary number. Also used

to denote the amount of memory required to store one byte of data.

bandwidth the range of frequencies present in a signal, or the range of frequencies to

which a measuring device can respond

buffer temporary storage for acquired or generated data (software)

bus the group of conductors that interconnect individual circuitry in a computer.

Typically, a bus is the expansion vehicle to which I/O or other devices are

connected. Examples of PC buses are the PCI and ISA bus.

CCelsius

channel pin or wire lead to which you apply or from which you read the analog or

digital signal

1 2 ... 44 45 46 47 48 49 50 51 52 53 54 ... 60 61

Keine Kommentare

National Instruments Computer-Based Instruments Digital Oscilloscope for PCI NI 5911 Bedienungsanleitung Seite 49