ER-G1 Accelerometer

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ER-G1
Application
Can be used in the vector� s microgravity measurement system and high precision
intertial navigation system, and also can be used in the high precision static angle
measurement system.
No. Parameters Performance Indicators Units
EI EII
1 Bias d± 3 d± 3 mg
2 Scale Factor 1.1~ 1.5 1.1~ 1.5 mA/ g
3 Second-order Nonlinearity d± 15 d± 15 ¼ g/ g2
4 Bias Temp Coefficient d± 20 d± 20 ¼ g/ 
5 Scale Factor Temp Coefficient d± 30 d± 30 ppm/ 
6 Bias Repeatability d20( three months) d20( 1 month) ¼ g
7 Scale Factor Repeatability d20( three months) d20( 1 month) ppm
8 Second-order Nonlinearity Repeatability d10( three months) d10( 1 month) ¼ g/ g2
9 Natural Frequency d800 d800 Hz
10 Acceleration Range e± 20 e± 20 g
11 Vibration 5g( 20~ 2000Hz) 5g( 20~ 2000Hz) g, Hz
12 Shock 120g, 4.5ms, 1/ 2sin 120g, 4.5ms, 1/ 2sin g, ms
13 Operating Voltage ± 12~ ± 15 ± 12~ ± 15 V
14 Operating Temp -40~ + 125 -40~ + 125 
15 Resolution d5� 10-6 d5� 10-6 g
16 Weight d80 d80 g

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