STG-90H
Three-axis
split
fiber
optic
gyroscope
High
reliability,Excellent
all-temperature
performance,
Excellent
environmental
adaptability,
strong
impact
and
vibration
resistance
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STG-90H
Three-axis
split
fiber
optic
gyroscope
High
reliability,Excellent
all-temperature
performance,
Excellent
environmental
adaptability,
strong
impact
and
vibration
resistance
|
Indicators
|
Model
|
STG-90H
|
|
Performance
indicators
|
bias
stability①
(°/h,
1σ)
|
0.01
|
|
bias
stability②
(°/h,
1σ)
|
0.003
|
|
bias
stability③
(°/h,1σ)
|
0.01
|
|
bias
repeatability(°/h,
1σ)
|
0.003
|
|
random
walk(°/h
1/2)
|
0.0005
|
|
scale
factor
nonlinearity(ppm)
|
10
|
|
scale
factor
asymmetry(ppm)
|
2
|
|
scale
factor
repeatability(ppm)
|
5
|
|
dynamic
range(°/s)
|
±500
|
|
Mechanical/
electrical
interface
|
size(mm)
|
Circuit
box:60×60×28
Header:Ф90×26
|
|
weight(g)
|
＜1350g
|
|
steady
state
power
consumption
at
normal
temperature(W)
|
4
|
|
power
supply(V)
|
+5
|
|
communication
interface
|
RS422
|
◾
Product
introduction
STG-90
three-axis
fiber
optic
gyroscope
is
a
full
solid-state
high-precision
digital
closed-loop
fiber
optic
gyroscope
integrating
optics,
mechanics
and
electricity.
Based
on
the
principle
of
Sagnac,
it
is
composed
of
erbium-doped
fiber
light
source,
fiber
coupler,
photodetector,
integrated
optical
phase
modulator,
fiber
sensing
ring,
circuit
and
structure.
Designed
for
navigation
level
precision
inertial
measurement
system.
It
has
the
characteristics
of
high
reliability
and
flexible
structure.
It
is
a
highly
customized
product
produced
according
to
the
customer's
platform.
◾
Product
features
•
Single
5V
power
supply,
extremely
low
power
consumption
•
Excellent
all-temperature
performance
•
Excellent
start-up
performance,
the
nominal
index
can
be
reached
when
the
power
is
turned
on,
and
no
preheating
is
required
•
Excellent
environmental
adaptability,
strong
impact
and
vibration
resistance
•
Interference
fringe
recognition
technology,
supporting
full
dynamic
range
cold
start
•
High
reliability
•
No
dead
zone
◾
Typical
applications
•
Strapdown
inertial
navigation
system
•
Attitude
indicator
•
Optical
fiber
compass
•
Positioning
and
orientation
system
•
“Three
self
”
inertial
navigation
system
◾Performance
indicators
•
Turn-on
time
(s)
3
•
Dynamic
range
(°/s)
±500
•
Zero
position(°/h
)
≤0.3
•
Bias
stability①
(°/h
,
1σ)
≤0.01
•
Bias
stability②
(°/h
,
1σ)
≤0.003
•
Bias
stability③
(°/h
,
1σ)
≤0.0
•
Bias
repeatability
(°/h
,
1σ)
≤0.003
•
Bias
magnetic
sensitivity
(°/h/Gs)
≤0.01
•
Random
walk
(°/h
1/2)
≤0.0005
•
Scale
factor
non-linearity
(ppm)
≤10
•
Scale
factor
asymmetry
(ppm)
≤2
•
Scale
factor
repeatability
(ppm)
≤5
•
Threshold(°/h
)
≤0.01
•
Resolution(°/h
)
≤0.01
•
Bandwidth(Hz)
≥200
◾Physical/Electrical
•
Power
supply
+5V
•
Steady-state
power
consumption
≤3W
•
Steady-state
power
consumption
at
full
temperature
≤4W
•
Instantaneous
power
consumption
at
startup
≤4W
•
Dimensions
of
circuit
box
60mm×60mm×28mm
•
Dimensions
of
gaugehead
Ф90mm×26mm
•
Weight
＜1350g
•
Electrical
form
RS422
◾Environmental
adaptability
•
Operating
temperature
-45℃
-
+70℃
•
Storage
temperature
-55℃
-
+80℃
•
Vibration
6.06g(RMS),20Hz-2000Hz
•
Impact
30g,6ms-8ms
•
Average
trouble-free
time
8000h
