The 3OG-40M is a high-precision inertial angular rate sensor based on the optical Sagnac effect, designed to measure the angular velocity of a moving platform along its sensitive axis. At the core of this device is an advanced fiber-optic ring, which serves as the angular velocity sensing unit.
It employs a digital closed-loop detection circuit to extract the optical path difference created by the interference between clockwise and counterclockwise propagating light waves. This optical path difference, induced by external angular velocity, is accurately detected by the fiber-optic ring. A sophisticated feedback control system then converts this signal into a voltage output, enabling real-time modulation and demodulation.
Through this advanced closed-loop control mechanism, the 3OG-40M achieves high-precision angular velocity detection with exceptional stability and reliability. This makes it ideal for applications requiring accurate inertial measurements, such as navigation, stabilization, and motion control systems in aerospace, defense, and industrial fields.

Details Images

Technical Parameter

Serial number	Test item	Unit	3OG-40	3OG-40M	3OG-56
1	Overall dimensions	mm	71.5×71.5×45
2	Starttime	S	3	3	3
3	Zero position	(°)/h	≤1	≤1	≤1
4	Zero bias stability at room temperature (constant temperature)	(°)/h	≤0.08(10s)	≤0.3(10s)	≤1(10s)
6	Zero-bias repeatability	(°)/h	≤0.08	≤0.3	≤1
7	Zero bias sensitivity	(°)/h/Gs	≤0.05	≤0.07	≤0.1
8	Random walk coefficient	()/h1/2	≤0.01	≤0.01	≤0.05
9	Scale factor nonlinearity	ppm	≤20	≤50	≤100
10	Scale factor asymmetry	ppm	≤10	≤30	≤50
11	Scale factor repeatability	ppm	≤20	≤50	≤100
12	Threshold	(°)/h	≤0.05	≤0.05	≤0.08
13	Resolution	(°)/h	≤0.05	≤0.05	≤0.05
14	Bandwidth	Hz	≥200	≥200	≥200
15	Operating temperature	℃	-45～+70	-45～+70	-45～+70
16	Storage temperature	℃	-55～+80	-55～+80	-55～+80
17	Dynamic range	(°)/s	±500/±800	±500/±800	±500/±1000
18	Supply voltage	V	+5	+5	+5
19	Steady-state power consumption	W	≤4	≤4	≤4
20	Full temperature steady state power consumption	W	≤8	≤8	≤8
21	Start the instantaneous current	A	<2	<2	<2

Outline Drawing

Inquiry Cart 0