The HTG-120 three-axis split type fog gyro is an all solid state high-precision digital closed-loop fiber optic gyroscope based on the SAGNAC principle. It consists of an erbium-doped fiber light source, fiber coupler, photodetector, integrated optical phase modulator, fiber sensing ring, circuit, and structural body.
Specifications
| Environmental Specifications | |
| Operating Temperature | -45โ~+70โ |
| Storage temperature | -50โ~+80โ |
| Vibration | 6.06g(RMS), 20Hz-2000Hz |
| Impact | 30g๏ผ6ms-8ms |
| Mean time between failures | 8000h |
| Electrical Characteristics | |
| Power supply | +5V |
| Steady state power consumption | โค4W |
| Steady state power consumption at full temperature | โค8W |
| Start instantaneous current | โค2A |
| External dimensions of circuit box
External dimensions of the header |
60mmx60mmx28mm
โ 120mmx31.2mm |
| Weight | <2300g |
| Output | RS422 |
| Technical Specifications | |
| Startup time | 3s |
| Zero bias stability (100s smooth) | โค0.0015ยฐ/h |
| Zero bias repeatability | โค0.0015ยฐ/h |
| Random walk coefficient | โค0.0003(ยฐ)/โh |
| Scale factor nonlinearity | โค2ppm |
| Scale factor repeatability | โค5ppm |
| Dynamic range | ยฑ300ยฐ/s |
Applications
- Strapdown Inertial Navigation System
- Attitude sensor
- Fiber optic compass
- Positioning and orientation system
- Three Self Visualization Navigation System
Drawing
