Overview
The T40 medium-low precision fiber optic strapdown inertial navigation system is a general-purpose navigation device suitable for multiple scenarios. It uses a 40-type three-axis fiber optic gyroscope and a small quartz flexible accelerometer to sense the motion of the carrier. It can form a combined navigation system with a satellite positioning system (GNSS) or DVL and odometer, and transmit real-time navigation information such as speed, position and attitude to the outside world through the communication port at a specified period.
Features
● Small size and light weight make it easy to install and deploy on the carrier.
● Flexible navigation modes: Supports multiple modes such as pure inertial navigation, GPS combined navigation, odometer combined navigation, and DVL underwater combined navigation to adapt to different application scenarios.
● Communication protocol is configurable: The communication protocol and baud rate can be set according to user needs.
● Excellent environmental adaptability; can be connected to external vibration damping brackets; resistant to strong impact vibration.
● Rich and reliable interface configuration: Equipped with RS422, RS232 and other digital communication interfaces.
● Communication interface to meet the data interaction needs of multiple devices.
● High reliability
Physics/Electricals
● External dimensions: 110mm × 110mm × 93mm
● Weight: Less than 1.3kg
● Power supply: 17-36V DC power supply, nominal power supply voltage 28V
● Power consumption: Steady-state power consumption less than 15W
● External connector: J30JM-25ZKP
Environmental adaptability
● Operating temperature: -40 ℃ ~ +60 ℃
● Storage temperature: -55 ℃ ~ +80 ℃
● Vibration: 6.06g (RMS), 20Hz~2000Hz
● Impact: 30g, 6ms~8ms
Specifications
|
No |
Items |
Parameter |
|
|
1 |
Azimuth self-alignment accuracy |
≤0.5°sec(Φ) (Φ is the local latitude) |
|
|
2 |
Horizontal attitude alignment accuracy |
≤0.02° |
|
|
3 |
Azimuth maintenance accuracy |
≤0.1°/h (pure inertia) |
≤0.1° (integrated navigation) |
|
4 |
Horizontal attitude maintenance accuracy |
≤0.1°/h (pure inertia) |
≤0.02° (integrated navigation) |
|
5 |
Position accuracy |
≤10m (GNSS combination) |
≤0.5%D (D is the range) (DVL underwater combination) |
|
6 |
Speed accuracy |
≤0.1m/s (GNSS combination) |
No less than DVL speed accuracy (DVL combination) |
|
7 |
Inertial navigation accuracy |
≤5 nautical miles per hour (alignment time 10 minutes) |
|

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