Send Message

0.1deg North Seeking Gyro 3 Axes North Sensor Rs422 Interface

0.1deg North Seeking Gyro 3 Axes North Sensor Rs422 Interface
Features Gallery Product Description Request A Quote
Product Name: North Seeker
North Seeking Accuracy (1σ): ≤0.1
North Seek Time: ≤ 3min
Horizontal Accuracy (pitch And Roll): ≤0.05 (1σ)
Interface: RS422
Weight: <5.5kg
High Light:

0.1deg North Seeking Gyro


North Seeking Gyro 3 Axes


North Sensor RS422

Basic Infomation
Place of Origin: CHINA
Brand Name: avic
Model Number: NF701
Payment & Shipping Terms
Packaging Details: carton with sponge
Delivery Time: 10 days for sample
Payment Terms: T/T
Supply Ability: 500/month
Product Description

0.1deg north seeking accuracy sensor fiber north finding sensor



Environmental requirements

1) Working temperature: -40℃~+65℃;

2) Storage temperature: -45℃~+70℃.

3) Sand and dust: Under the sand and dust conditions specified in Article 2 of GJB150.12, the following conditions shall not occur in the fiber optic gyroscope north finder:

a. The organization is too tight, stuck or malfunctioning;

b. Electrical components are short-circuited or cannot work normally;

c. The internal mechanical parts are dusty.

4) Salt fog

The fiber optic gyroscope north finder should meet the salt spray conditions of GJB150.11.

5) Humid and hot environmental conditions

Relative humidity: 95%; temperature: 30±2C; storage time 72 hours.

The insulation resistance should not be less than 2 MΩ, the metal surface should not be corroded, and the coating should not be blistered or peeled off, and it can work normally.

6) Vibration environment

Sinusoidal scanning vibration environment requirements

Frequency range: 5Hz~5.5Hz, vibration displacement (double amplitude) 25.4mm

Frequency range: 5.5Hz~200Hz, vibration acceleration 1.5g;

Scan time: 12min;

Vibration direction: 3 axes (X axis, Y axis, Z axis);

Each axis: 2h;

7) Impact environmental conditions

Impact waveform: half-sine pulse

Peak acceleration: 20g, pulse width 11ms,

Number of impacts per axis (X-axis, Y-axis, Z-axis): 3

8) Crash environmental conditions

Peak acceleration: 10g

Pulse width: 16ms

Collision rate: vertical axis 80 times/min

Collision times: 1000±10 times

Collision direction: vertical installation plane

9) Environmental requirements for sports cars

The road sports car has a mileage of 500 km. in:

Dirt road and gravel road: The speed is 20-30 km/h, 300 km.

Asphalt road and concrete road: the vehicle speed is 30-40 km/h, 200 km.

10) Electromagnetic compatibility

The electromagnetic compatibility refers to the relevant requirements of GJB151A-97 "Electromagnetic Emission and Sensitivity Requirements for Military Equipment and Subsystems".

11) Magnetic field

The performance characteristics of the gyro north finder under the condition of the magnetic induction intensity of (3±0.5)×10-4T should meet the technical index requirements.


Electrical performance

1) Insulation resistance

The insulation resistance between the independent circuits of the gyro north finder, and between the circuit and the housing should not be less than 100 MΩ under standard atmospheric conditions.


Main technical parameters
Parameters FNF701 Unit
North seeking accuracy (1σ) ≤0.1 °
North seek time ≤ 3 min
Horizontal accuracy (pitch and roll) ≤0.05 (1σ) °
Circular linearity (1σ) ≤0.1 °
Power-on preparation time 6 min
interface RS422 /
Weight <5.5 Kg
Dimension 150×170×172 mm
Working mode

After power on, it start self-test. After the self-test

completed, it will response to the upper computer’s north

seek command. And after north seeking, the north seeking

result will be sent to upper computer.

Environment requirements
Operating temperature -40 ~ +65 ° C
Storage temperature -45~ +70 ° C
Relative humidity 95 %
Appearance The metal surface shall not be rusted, and the coating shall not cause blistering or peeling.
Electrical performance
Power supply 24±4V
Power consumption <30W
Insulation resistance

The insulation resistance between the individual circuits of the gyro north finder and its circuit and housing shall be not less than 10 MΩ under standard atmospheric


MTBF ≥1000 hrs
MTTR ≤30 min








External Interface

1.1.1 With 24V±4V power input.

1.1.2 With serial port output function, the serial port output is defined as follows:

The external communication port adopts the RS422 serial interface form, with 1 start bit, 8 data bits, 1 stop bit, no parity, and a baud rate of 9600bps. The data is in ASIC format.

Recommended Products
Get in touch with us
Contact Person : Caine
Characters Remaining(20/3000)