Small Size TDF37IMU0 Fiber Optic Inertial Unit with Low Power Consumption and High Accuracy for Dynamic Measurement
Price:
Negotiable
MOQ:
one set
Delivery Time:
Negotiable
Brand:
NAVI OPTICS
Product Description
Small Size TDF37IMU0 Fiber Optic Inertial Unit
Compact fiber optic inertial unit featuring low power consumption, high accuracy, and lightweight design for demanding navigation applications.
Product Overview
Fiber optic inertial units offer significant advantages including small size, light weight, low power consumption, and high accuracy. These units are designed for pure strapdown systems and meet the requirements of modern unmanned platforms, water/torpedo weapons, and various land, airborne, and missile weapon platforms. The system provides dynamic measurement of carrier angular and linear motion information.
Performance Specifications
Gyroscope Performance
| Parameter | Specification | Value | Remarks |
|---|---|---|---|
| Zero Bias Stability (10s) | Zero bias stability | 0.2°/h | |
| Variable Temperature Zero Bias (100s) | Temperature stability | 0.5°/h | |
| Scale Factor Nonlinearity | Scale factor | ≤20ppm | |
| Random Walk Coefficient | Other indicators | 0.02°/√h | |
| Input Range | Range | 400°/s |
Accelerometer Performance
| Parameter | Specification | Value | Remarks |
|---|---|---|---|
| Zero Bias Repeatability | Deviation index | 0.3mg | |
| Zero Bias Temperature Sensitivity | Zero bias indicator | 50μg/℃ | |
| Scale Factor Repeatability | Scale factor | 300ppm | |
| Scale Factor Temperature Sensitivity | Scale factor | 20ppm/℃ | |
| Input Range | Range indicator | ±20g |
System Characteristics
| Parameter | Specification | Value | Remarks |
|---|---|---|---|
| Operating Temperature | Environmental performance | -40℃～65℃ | |
| Storage Temperature | Environmental performance | -40℃～60℃ | |
| Power Supply | General requirements | 18～36V(DC) | |
| Stable Power Consumption | Power requirements | ≤8W | Startup power consumption ≤15W |
Communication Protocols
- RS422 Serial Port 1: IMU raw data output at 200Hz frequency, providing three channels of angle increment information, three channels of speed increment information, IO count information, and temperature information. Data protocol detailed in Appendix A with no data loss.
- RS422 Serial Port 2: IMU synchronous data output with time synchronization signal (valid rising edge), RS422 differential signal, 10±2μs pulse width, 5ms±20μs sampling signal interval. Serial port 1 data transmitted 50μs after rising edge emission.
- RS422 Serial Port 3: Gyroscope raw data output at 460.8kbps±2kbps transmission rate with even parity. Outputs gyroscope data synchronized with external 2kHz square wave or broadcast form with 2k update frequency.
Output Data Protocol
IMU raw data output frequency: 200Hz with the following protocol specifications:
- Baud rate: 460800bps
- Output format: RS422, 1 start bit, 1 stop bit, 8 data bits, no checksum
- Data frequency: 200Hz
- Communication protocol as detailed below
- Undefined bits default to 0, multiple bytes transmitted with low byte first
| Byte Number | Meaning | Data Type | Length | Description |
|---|---|---|---|---|
| 1-4 | Packet Header | unsigned int | 4 bytes | 0x55,0x55,0x55,0x55 |
| 5-8 | Packet Count | unsigned int | 4 bytes | IMU internal count value |
| 9-12 | X Gyroscope Data | Single precision floating point | 4 bytes | Angle increment (degrees) |
| 13-16 | Y Gyroscope Data | Single precision floating point | 4 bytes | Angle increment (degrees) |
| 17-20 | Z Gyroscope Data | Single precision floating point | 4 bytes | Angle increment (degrees) |
| 21-24 | X Accelerometer Data | Single precision floating point | 4 bytes | Speed increment (m/s) |
| 25-28 | Y Accelerometer Data | Single precision floating point | 4 bytes | Speed increment (m/s) |
| 29-32 | Z Accelerometer Data | Single precision floating point | 4 bytes | Speed increment (m/s) |
| 33-34 | X Temperature | unsigned int | 2 bytes | Temperature measurement |
| 35 | IO1 Pulse Counting | unsigned int | 1 byte | - |
| 36 | IO2 Pulse Counting | unsigned int | 1 byte | - |
| 37 | Sign Position | unsigned int | 1 byte | - |
| 38 | Checksum | unsigned int | 1 byte | Sum of bytes 1-37 |
Note: X, Y, and Z-axis gyroscope data represent angle increments in degrees. X, Y, and Z-axis accelerometer data represent speed increments in meters per second. Temperature calculation: positive=(D33+D34*256)*0.01, negative=(D33+D34*256-65536)*0.01 degrees. Flag definition shown in Appendix 1(b).
Electrical Interfaces
Device connector: J63A-242-015-261-TH for power supply and communication. Mating plug: J63A-12-015-161-JC.
| Pin | Connectivity | Signal Name | Signal Characteristics |
|---|---|---|---|
| 1,2 | External power supply | PCS power supply | 24V |
| 3,4 | PCS Power Supply | Power Ground | |
| 5 | 200Hz signal output | IMU_TX1+ | IMU data output positive |
| 6 | 200Hz signal output | IMU_TX1- | IMU data output negative |
| 9 | Synchronization signal | IMU_SYN+ | IMU synchronization signal positive |
| 10 | Synchronization signal | IMU_SYN- | IMU synchronization signal negative |
Dimensions & Weight
Weight: ≤ 0.5kg
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Company
QINGDAO NAVI OPTICS TECHNOLOGY CO.,LTD
Location
Liando U Valley 25#, No.423, Juyang Rd, Huangdao District, Qingdao, 266425,China
Contact Person
Ming Ming