Agilent Technologies 54501A Spécifications télécharger pdf (Page 89)

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7¨4

In

both

acquisitiotr modes:

Infinite

persistence

can be used

for worst-case

characterizations

of

sigDal

noise,

jitter,

drift,

etc.

In

this

mode the IIP

54510A is

used

as a storage

oscilloscope.

In repetitive

acquisition mode:

{1

minimg6

persistence,

a

point

is

erased when

a

new

point

is

acquired

in

the same

tirns

ss the display.

Therefore,

the

waveform

fills quickly

and

each

point

lg6ains

fs1

s

minimum .mount

of time.

Note

When

the

kqpad is used to change

penitence

sefrinp, any

enfry

longer

than

10 seconds causes the

message value

out of

range,

set

to limit

to

be displayed-

Penistence

*eits

outomatical$r

set to

infinite

Any

enny less than 5(n ms

causes the

some message

to

be

displayed

and

paistence

is set to minimum.

When

norn

is

selected, the function keybeneath

the

norm

field is

activated.

This held

displap the current

persistence

setting

that can

be

set using

either

of the

entry devices.

Connect-the-dots

is

available for

waveform

memories,

but

not for

channels with

persistence.

aW The

averaged

mode

selects

the number

of

waveform

acquistions

that are

averaged

to

generate

the displayed

waveform.

The

range for

the

averaging

function

is

1

to

204t1in

powers

of 2.

When

averaged

mode is

selected, the

next

function key is

activated

and

the number

of

averages

is

set using either entry kep

or

knob.

Displayed

signal noise is

significantly

reduced

by usrng

the averaging

mode.

As

the number

of averages

is increased

from

1 to 2048,

the display

becomes less

responsive

to changes

in

the input

signal(s), however,

using

more

averages reduces

the effects of displayed

sipal noise

and improves

resolution.

HP 54510A

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