Micro Fiber Optic Gyroscope With Analog Output Micro-Nano Fiber Devices FOG
1 Scope
This document specifies the requirements and methods for the use and maintenance of FCG-24 micro-nano fiber optic gyroscope (product for short).
2 References and Standards
GJB1649-1993 ESD Control Program for Electronic Products
3 Definitions
None.
4 Product introduction
4.1 Product Overview
FCG-24 micro-nano fiber optic gyroscope (hereinafter referred to as this product) is an angular rate sensor integrating optics with analog output, mechanics and electronics. It is based on the Sagnac effect, integrates a variety of micro-nano fiber devices, and realizes the detection process by detecting, processing and feeding back the phase difference generated by two beams of light propagating in opposite directions.
This product is mainly composed of optical path components, circuit components and structural components. It has the characteristics of simple structure, no moving parts, no wear parts, fast start, small size, light weight and so on. And can be apply to that attitude control and measurement of the carrier.
4.2 Composition
The product is mainly composed of the following components:
A) an optical path assembly;
B) Detection and control signal circuit board;
C) Optical fiber ring skeleton, shell and other structural parts;
4.3 Appearance and dimension
The product is cylindrical, with overall dimensions of φ24 mm × 40mm
Fig. 1 Outline drawing of FCG-24 micro-nano fiber optic gyroscope
4.4 Weight
≤40g.
4.5 Operating temperature
-40℃~+65℃.
4.6 Storage temperature
-55℃~+85℃.
4.7 Random vibration
Random vibration level: 20g, frequency range: 20Hz ~ 2000Hz.
Table 1 Main Performance Parameters
| Items |
FCG24D |
Unit |
| Output Mode |
Analog |
|
| Connector |
Welding plate |
|
| Axis |
1 |
|
| Consumption |
≤0.7 |
w |
| Power Supply |
5(±0.15) |
V |
| Random walk |
≤0.1 |
°/√h(1σ) |
| Range |
≥500 |
°/s |
| Bias (10s,1σ) |
≤2 |
°/h
|
| Bias (Allan) |
≤0.2 |
°/h |
| Bias repeatability(Allan) |
≤0.2 |
°/h |
| Scale factor |
4
|
mv/° /s |
| Scale factor Non-linearity |
≤1000 |
PPM(1σ) |
| Start up time |
≤1 |
s |
| Bandwidth |
450 |
Hz |
| Working Temp. |
-45~+70 |
℃ |
| Store Temp. |
-55~+85 |
℃ |
| Vibration |
20~2000,0.04 |
Hz,g²/Hz |
| Dimensions |
Φ24*40 |
mm |
| Weight |
≤30 |
g |
4.9.1 Mechanical interface
The bottom surface of the product is the mounting surface, with 3 M3 threads and external mechanical connection.
Figure 2 Installation Dimension
4.9.2 Power Requirements
The external power supply to the product has two circuits, and the requirements are shown in Table 2:
Table 2 External Power Supply Requirements
| |
+5V |
| Voltage |
4.85V~5.15V |
| Ripple |
20mV |
| Electric current |
0.25A |
