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Small Size TDFG99IMU Fiber Optic Inertial Unit High Accuracy Light Weight
♦ Overview
This fiber optic inertial unit offers a compact, lightweight design with low power consumption and high precision. It features eight-point vibration damping, enabling reliable performance in high-impact and high-vibration environments. Suitable for pure strapdown applications, it meets the requirements of next-generation unmanned platforms, underwater/torpedo systems, as well as land, airborne, and missile weapon platforms that demand miniaturized yet high-precision inertial technology. Additionally, it provides dynamic measurement capabilities for both angular and linear motion of the carrier.
♦ Performance
| Project | Contents | Index | Notes |
| Performance indicators of gyroscope | |||
| Zero bias indicator | Zero bias stability (100s) | 0.005°/h | |
| Zero bias stability (10s) | 0.01°/h | ||
| Variable temperature zero bias stability | 0.02°/h | ||
| Scale Factor | Full temperature scale factor | ≤150ppm | |
| Other indicators | random walk coefficient | 0.001°/h | |
| input range | 400°/s | ||
| Performance indicators of accelerometer | |||
| Deviation index | Deviation monthly comprehensive error | 20μg | |
| Zero bias indicator | Zero bias temperature sensitivity | 20μg/℃ | |
| Scale Factor | Scale factor monthly comprehensive error | 20ppm | |
| Scale factor temperature sensitivity | 20ppm/℃ | ||
| Range indicator | Input range | ±20g | |
| Whole machine characteristics | |||
| Environmental performance indicators | Operation temperature | -40℃～60℃ | |
| Storage temperature | -45℃～70℃ | ||
| General requirements | Power supply | 18～36V(DC) | |
| Stable power consumption | ≤15W | Startup power consumption ≤ 25W | |
♦ Electrical Interfaces
| Pin | Connectivity | Signal name | Signal characteristics |
| 39,40 | External power supply | PCS power supply positive | 24V |
| 41,42 | PCS power supply ground | Power Ground | |
| 5 | 200Hz signal output | IMU_TX1+ | IMU data output positive |
| 6 | IMU_TX1- | IMU data output negative | |
| 9 | Synchronization signal | IMU_SYN+ | IMU synchronization signal positive |
| 10 | IMU_SYN- | IMU synchronization signal negative |
♦ Structural appearance and dimensions
