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High Accuracy TDF72IMU0 Fiber Optic Inertial Unit for Full Dynamic Motion Measurement with Small Size
Key Attributes
Brand Name:
NAVI OPTICS
Model Number:
TDF72IMU0
Place of Origin:
China
Payment Terms:
L/C,T/T
Standard Packaging:
carton box
Product Summary
High-accuracy fiber optic IMU with 0.01°/h gyro stability & ±20g range. Compact, rugged design for harsh environments in defense, aerospace, and marine applications. Low power, certified performance.
Product Custom Attributes
Highlight
High Accuracy Fiber Optic Inertial Unit
,Full Dynamic Motion Measurement IMU
,Small Size Inertial Measurement Unit
Product Description
High Accuracy TDF72IMU0 Fiber Optic Inertial Unit
Full Dynamic Motion Measurement for demanding applications requiring precision and reliability under extreme conditions.
Product Overview
This advanced fiber optic inertial unit features eight-point vibration reduction technology, making it ideal for high-impact and high-vibration environments. The unit combines compact dimensions, lightweight construction, low power consumption, and exceptional accuracy for comprehensive dynamic measurement of carrier angular and linear motion information.
Designed for small-volume, high-precision applications across multiple platforms including water/torpedo weapons, land vehicles, airborne systems, and missile weapon platforms.
Performance Specifications
Gyroscope Performance Indicators
| Parameter | Specification | Value | Notes |
|---|---|---|---|
| Zero Bias Stability (100s) | Zero bias stability | 0.01°/h | |
| Zero Bias Stability (10s) | Zero bias stability | 0.03°/h | |
| Variable Temperature Zero Bias | Zero bias stability | 0.05°/h | |
| Scale Factor | Full temperature scale factor | ≤150ppm | |
| Random Walk Coefficient | Other indicators | 0.002°/h | |
| Input Range | Input range | 400°/s |
Accelerometer Performance Indicators
| Parameter | Specification | Value | Notes |
|---|---|---|---|
| Deviation Monthly Comprehensive Error | Deviation index | 20μg | |
| Zero Bias Temperature Sensitivity | Zero bias indicator | 20μg/℃ | |
| Scale Factor Monthly Comprehensive Error | Scale Factor | 20ppm | |
| Scale Factor Temperature Sensitivity | Scale Factor | 20ppm/℃ | |
| Input Range | Range indicator | ±20g |
Unit Characteristics
| Category | Parameter | Specification | Notes |
|---|---|---|---|
| Environmental Performance | Operation temperature | -40℃～60℃ | |
| Environmental Performance | Storage temperature | -45℃～70℃ | |
| General Requirements | Power supply | 18～36V(DC) | |
| General Requirements | Stable power consumption | ≤15W | Startup power consumption ≤ 25W |
Communication Protocols
The debugging data output operates at a baud rate of 460800, with 8 data bits, 1 stop bit, no checksum, and low-to-high order transmission. General debugging data includes IMU raw data, user command data, satellite navigation record data, and navigation result data.
| SN | Message Content | Type | Note |
|---|---|---|---|
| 1~2 | Frame header | char | 0x5A,0x54 |
| 3 | Frame length | char | 0x1E |
| 4 | Frame ID | char | 0x04 |
| 5~8 | Frame Number | int | 200Hz accumulation |
| 9~11 | X accelerometer output | char*3 | Note 1 |
| 12~14 | Y accelerometer output | char*3 | |
| 15~17 | Z accelerometer output | char*3 | |
| 18~20 | X gyroscope output | char*3 | Note 2 |
| 21~23 | Y gyroscope output | char*3 | |
| 24~26 | Z-gyroscope output | char*3 | |
| 27 | Reserve | char | |
| 28~31 | Reserve | int | |
| 32~33 | Reserve | short | |
| 34 | Checksum | Total of 4-33 bytes |
Note 1: Velocity Increment Calculation
- The 5ms velocity increment value output by the accelerometer at time tk is yk (unit: m/s)
- Define the initial value of speed increment accumulation SumVelInt=0
- Define Yk=int [yk * 1e5+δ Yk-1], where int [*] represents rounding operation, and δ Yk-1 represents the remainder after rounding the velocity increment in the previous step
- The remainder after rounding Yk: δ Yk=yk * 1e5+δ Yk-1-Yk
- SumVelInt = SumVelInt + Yk
- Integer range limitation for SumVelInt: If SumVelInt ≥ 1e7, SumVelInt=SumVelInt -1e7; If SumVelInt<0, SumVelInt=SumVelInt+1e7
- After integer processing, limit the range of SumVelInt values to [0,1e7)
- Send the last 3 bytes of SumVelInt after integer processing
Note 2: Angle Increment Calculation
- The 5ms angular increment value of the gyroscope output at time tk is xk (unit: rad)
- Define the initial value SumAngInt for angle increment accumulation as 0
- Define Xk=int [xk * 1e7+δ Xk-1], where int [*] represents the rounding operation, and δ Xk-1 represents the remainder after rounding the previous angular increment
- The remainder after rounding Xk: δ Xk=xk * 1e7+δ Xk-1-Xk
- SumAngInt = SumAngInt + Xk
- The integer range limitation of SumAngInt: If SumAngInt ≥ 1e7, SumAngInt=SumAngInt -1e7; If SumAngInt<0, SumAngInt=SumAngInt+1e7
- After integer processing, limit the range of SumAngInt values to [0,1e7)
- Send the last 3 bytes of SumAngInt after integer processing
Electrical Interfaces
External electrical interfaces include power interface, RS422 communication interface, and 100Mbps Ethernet interface. Socket model: J30JM-37ZKP, matching plug model: J30J-37TJL.
| Pin | Connectivity | Signal Name | Signal Characteristics |
|---|---|---|---|
| 1,2 | External power supply | PCS power supply positive | 24V |
| 3,4 | 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 |
Physical Dimensions
Dimensions: 160mm * 160mm * 115mm (± 1mm, excluding connectors)
Weight: ≤ 3kg
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