1.1 Product Review
This product is an inertial angular rate sensor based on the
optical Sagnac effect, which is used to measure the angular rate of
the carrier along the sensitive axis of the product. The angular
rate sensing unit of the product is an optical fiber ring, a
digital closed-loop detection circuit is adopted to extract the
optical path difference of clockwise and counterclockwise
propagation light caused by the external physical angular rate,
which is sensed by the optical fiber ring, and meanwhile, a voltage
signal converted from an optical path difference signal is
subjected to closed-loop feedback and control, so that the
modulation and demodulation of the signal are realized, and the
purpose of angular rate signal detection is achieved.
1.2 Function
This product is composed of an optical angular velocity sensing
unit and a signal detection unit, providing single-axis angular
increment information and internal temperature information.
1.3 Application
The products are mainly suitable for applications such as
medium-precision inertial navigation systems, positioning and
orientation systems, and servo stabilization systems.
The product is mainly composed of the following components:
a) optical path components;
b) Detection and control signal circuit board;
c) Optical fiber ring skeleton, shell and other structural parts;
1.3 Size
Overall dimension (mm): 50 ± 0.1 × 50 ± 0.1 × 36 ± 0.1 (L × W × H);
Installation dimension (mm): 41 X 41, 4 M3 screws
Size
Electrical Interface | Pin number | Definition | Explain | | 1,9 | T+ | Serial port output RS422 + | | 2,10 | T- | Serial port output RS422- | | 4,5 | +5VA | Analog supply + 5V | | 6,7 | AGND | Analog power ground | | 8,15 | -5VA | Analog power supply -5V | | 12,13 | VCC | Digital supply + 5/+ 3.3V | | 11,14 | GND | Digital power ground |
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