types 4913
and
4915
Digital Stroboscope and Fibre-Optic Source
USES:
FEATURES:
•
Investigation
of
repetitive, high-speed
motion
with
engines
and
machines
etc.
• Combined
motion
analyzer/tachometer
• Mechanical design, development
and
trouble
shooting
aid
• Slow
motion
frequency
plus
phase
and
time
delay
adjustments
•
Synchronization
with
internal
generator, line or
external trigger source • Resonance search
and
vibration
mode
study
tests
• Stroboscopic
photography
with
time
or
phase
delay
•
Automatic
tracking
of
motion
frequency
plus
remote control
•
Internal
inspection
of
machinery
plus
examina-
tion
of
microscope specimens
• 4-digit
display
of
motion
frequency/speed, phase-
/time
delay, slow
motion
frequency/speed
The
Brtiel & Kjrer
Type
4913 is a
versatile
instrument
with
the
com-
bined
function
of
stroboscopic
motion
analyzer
and
tachometer.
Using
its
high
intensity
flash source a
station-
ary or slow moving stroboscopic image
of
all
kinds
of
rapid,
repetitive
motion
can be
obtained,
making
it
extremely
easy
to
observe
the
precise
action
and
motion
eccentricities
of
vibration
test
components, engines,
machines
etc.
The
flash
rate
may
be synchronized
with
motion
frequencies from 5
Hz
to
10
kHz
(0,3
to
600 k
r/min)
and
can
be
triggered from
an
internal
generator,
1-0440013-1A
BP
0013
4913
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• •
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power line
or
external
tachometer
sig-
nal
such
as from a
Photoelectric
Probe
MM
0012
or
Magnetic
Probe
MM
0002.
Separate
modes
with
adjustable
time
and
phase
delay facilitate
measurement
and
observation
at
any
required
point
in
the
motion
cycle
and
a "Slow
Motion"
mode
permits
sub-
jects
to
be viewed
with
an
apparent
motion
frequency
of
0,05
to
5 Hz.
Using
the
built-in
4-digit display
an
accurate
indication
of
motion
frequen-
cy
or
speed,
time
or
phase
delay can be
obtained
which is useful for
both
measurements
and
setting-up
of
the
4915
instrument.
Additional
features are
choice
of
local
or
remote
control, plus
single flash
operation
for photograhic
purposes.
As
an
optional
light
source
Type
4913
can
be coupled
with
the
Fibre-
Optic Stroboscope Source
Type
4915.
Light
transmission
is via a resilient
1,8 m long fibre-optic cable AE 6000
which
outputs
a convenient
point
source
of
illumination
that
is ideal for
stroboscopic
examination
of
small
mechanical components,
intricate
mechanisms
and
microscope speci-
mens
etc.
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