Ring Laser Gyroscope High Precision Two Frequency Machine Shaking Overview
Ring Laser Gyroscope-JIO50 is a high-precision digital dual-frequency machine-shaking laser gyro developed and produced by JIoptics company. It has the advantages of high precision, simple power supply, high integration and digital output. It can measure the angular motion of the carrier around the sensitive axis and output two orthogonal square waves. It is widely used in the integration of positioning/navigation, fire control and flight control, surveillance and reconnaissance systems in the fields of missiles and their launch vehicles, ships, aircraft, drones, and armored vehicles.
JIO50-RLG is available in A, B and C models to meet your different needs.
Ring Laser Gyroscope High Precision Two Frequency Machine Shaking Features
Measure the rotation angle around its sensitive axis, and output two orthogonal square waves.
Performance
JIO50 -type laser gyroscope are shown in Table 1.
Table 1 Main Technical Indicators of Gyro
serial number
|
parameter
|
unit
|
Grade A
|
Grade B
|
Grade C
|
Remark
|
1
|
Zero bias
|
°/h
|
≤0.5
|
/
|
2
|
bias stability
|
°/h
|
≤0.5 %
|
≤1 %
|
≤3 %
|
100s , 1σ
|
3
|
Zero bias repeatability
|
°/h
|
≤0.5 %
|
≤1 %
|
≤3 %
|
1σ
|
4
|
random walk coefficient
|
°/h 1/2
|
≤2‰
|
≤5‰
|
≤9‰
|
/
|
5
|
Scale factor
|
"/pulse
|
3.370
|
/
|
6
|
Scale Factor Nonlinearity
|
ppm
|
≤5
|
/
|
7
|
Scale Factor Repeatability
|
ppm
|
≤5
|
1σ
|
8
|
Magnetic sensitivity
|
°/(h·Gs)
|
/
|
/
|
9
|
Maximum input angular rate
|
°/s
|
≥ ± 400
|
/
|
10
|
Start Time
|
the s
|
≤10
|
/
|
Environmental adaptability
a ) Working temperature : -40 ℃ ~ + 65 ℃
b ) Storage temperature: -45 ℃ ~ + 85 ℃
c ) Vibration: 9.6g in total;
d ) Shock: 30g/11ms (half sine) or 75g/6ms (half sine);
e) Low pressure: 5000m above sea level.
Frequency (Hz)
|
10
|
100
|
200
|
300
|
400
|
500
|
800
|
2000
|
Power spectral density (g 2 /hz)
|
0.1
|
0.6
|
0.2
|
0.06
|
0.04
|
0.02
|
0.005
|
-6db
|
Power supply and electrical interface
a ) Power supply
Type: ± 5V , +15V
Requirements: +5V - current 180mA , stability ± 50mV , ripple < 50mV
-5V - current 60mA , stability ± 50mV , ripple < 50mV
+15V - current 240mA , stability ± 100mV , ripple < 100mV
b ) Power consumption: < 6W
c ) Electrical interface type: J30J-25ZKP
d ) Interface definition: The definition of electrical interface pins is shown in Table 2.
Table 2 Electrical interface definition table
pin number
|
definition
|
Remark
|
1
|
+15V
|
power input
|
2
|
+15VGND
|
+15V power ground
|
3
|
NC
|
null
|
4
|
GND
|
+5V , -5V power ground
|
5
|
NC
|
null
|
6
|
+5V
|
power input
|
7
|
-5V
|
power input
|
8
|
AOUT
|
Square wave output signal 1 ( TTL level)
|
9
|
BOUT
|
Square wave output signal 2 ( TTL level)
|
10
|
TMP3
|
Platinum resistance thermometer 3
|
11
|
TCOMA
|
3 platinum resistance common terminals
|
12
|
TMP1
|
Platinum resistance 1
|
13
|
TMP2
|
Platinum resistance 2
|
14
|
+15V
|
power input
|
15
|
+15VGND
|
+15V power ground
|
16
|
NC
|
null
|
17
|
GND
|
+5V , -5V power ground
|
18
|
NC
|
null
|
19
|
+5V
|
power input
|
20
|
-5V
|
power input
|
twenty one
|
AOUT
|
Square wave output signal 1 ( TTL level)
|
twenty two
|
BOUT
|
Square wave output signal 2 ( TTL level)
|
twenty three
|
GND
|
+5V , -5V power ground
|
twenty four
|
NC
|
Spinning Top
|
25
|
NC
|
Spinning Top
|
The models of platinum resistors 1 , 2, and 3 are Pt1000
|
Reliability
MTBF: 10000h
Continuous working time: the continuous working time is not less than 24 hours after power-on.
Shape and mechanical interface
a ) Weight: ≤620g ±20g
b ) Shape and mechanical interface: as shown in Figure 1.
Continuous working time: the continuous working time is not less than 24 hours after power-on.
Gyro appearance and installation diagram
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