FS70ZK Single-Axis Medium-High Precision FOG
Strong Environmental Adaptability
High Reliability, Ultra-Long Lifetime
Fully DigitalRS-422 Electrical Interface Output
Description
Main Features
- Miniature Compact Design
- All-Solid-State Design
- Strong Environmental Adaptability
- High Reliability, Ultra-Long Lifetime
- Fully DigitalRS-422 Electrical Interface Output
Application Fields
- EO Pod
- Flight Control Platform
- Optical/Photography Platform
- Platform Stabilization Device
- SatCom-on-the-Move
- Inertial Measurement Unit
- Lightweight UAV
Product Overview
The FS70ZK is a miniaturized fiber optic gyroscope with integrated circuitry and optical paths that break from traditional designs. It serves as an ideal high-precision angular rate sensor for control applications and is widely used in inertial measurement. Built on proven designs with engineering optimizations for mass production, it delivers exceptional cost performance. Featuring compact size, light weight, low power consumption, and a simple interface, the FS70ZK is the top choice for navigation and control fields.
Unique Technology
Company is a high-tech enterprise with full closed-loop capabilities from fiber winding equipment and coils to FOGs, fiber/MEMS inertial products, IMU circuits, software, and test equipment. End-to-end process control improves quality and reduces costs. Operating under ISO9001 with strict processes, the company ensures product reliability and consistency. Inertial technology is widely adopted in high-speed railway inspection, where track inspection vehicles automatically measure track irregularities and damage. The FS70ZK significantly improves INS performance, an ideal choice for medium-high precision inertial navigation.
FS70ZK Single-Axis Medium-High Precision FOG
FS70ZK Single-Axis FOG Performance Parameters
|
Parameter |
A |
B |
Remarks |
|
Bias Stability (°/hr ,1σ, 10s) |
≤0.05 |
≤0.03 |
2h Continuous Test, 10s avg. Result |
|
Bias Repeatability (°/hr ,1σ) |
≤0.05 |
≤0.03 |
Calculated Results from 6 Test Runs |
|
Angle Random Walk (ARW) (°/√h) |
≤0.005 |
≤0.003 |
|
|
Scale Factor Nonlinearity (ppm) |
≤10 |
≤10 |
Room Temperature |
|
Scale Factor Repeatability (ppm) |
≤20 |
≤10 |
Room Temperature |
|
Full-Temp. Scale Factor Repeatability (ppm) |
≤300 |
≤200 |
-40℃～+60℃ |
|
Dynamic Range (°/s) |
±500 |
||
|
Magnetic Sensitivity (°/hr/Gs) |
≤0.02 |
||
|
Operating Temperature (℃) |
-40～+70 |
||
|
Storage Temperature (℃) |
-50～+70 |
||
|
Vibration Condition (g, Hz) |
4.2,20～2000 |
No resonance in the scanning |
|
|
Weight (g) |
280±30 |
||
|
Dimensions (mm) |
70*70*30 |
|
|
|
Note: This series of gyroscopes features hermetic sealing. |
|||
Dimensional Drawing
Introduction
As a new type of all-solid-state gyroscope, fiber optic gyroscope has the advantages of fast start-up, wide measurement range and high reliability. FS70ZK Medium-high Precision Fiber Optic Gyroscope can be applied to the application requirements of high-precision inertial navigation systems such as land positioning and orientation, vehicle north finder, airborne attitude, and marine gyro compass.
1.1 Application
The manual is only applicable to FS70ZK type products, including performance indicators, technical conditions, external dimensions and installation and use. Among them, the technical conditions include the environmental scope, electrical performance and physical characteristics of the product.
1.2 Main Parameter
1.2.1 Main Performance Indexes of Fiber Optic Gyroscope:
Table 1. Main performance indicators of the products
|
Parameter |
A |
B |
Remarks |
|
Bias Stability (°/hr ,1σ, 10s) |
≤0.05 |
≤0.03 |
2h Continuous Test, 10s avg. Result |
|
Bias Repeatability (°/hr ,1σ) |
≤0.05 |
≤0.03 |
Calculated Results from 6 Test Runs |
|
Angle Random Walk (ARW) (°/√h) |
≤0.005 |
≤0.003 |
|
|
Scale Factor Nonlinearity (ppm) |
≤10 |
≤10 |
Room Temperature |
|
Scale Factor Repeatability (ppm) |
≤20 |
≤10 |
Room Temperature |
|
Full-Temp. Scale Factor Repeatability (ppm) |
≤300 |
≤200 |
-40℃～+60℃ |
|
Dynamic Range (°/s) |
±500 |
||
|
Magnetic Sensitivity (°/hr/Gs) |
≤0.02 |
||
|
Operating Temperature (℃) |
-40～+70 |
||
|
Storage Temperature (℃) |
-50～+70 |
||
|
Vibration Condition (g, Hz) |
4.2,20～2000 |
No resonance in the scanning |
|
|
Note: This series of gyroscope has gas tightness function. |
|||
1.2.2 Mechanical Testing
1.2.2.1 Sine Scan Vibration
The gyro is fixed to the shaker by the tooling according to the vibration direction, and the gyroscope performs a sine scan in 3 directions, corresponding to the X-axis, Y-axis and Z-axis directions. Vibration steps; shaking table with excitation, power up the gyroscope, after warming up for a certain time (gyro start time), test the output value of gyroscope, about 5min; carry out sine vibration. Vibration conditions: 20Hz-2000Hz, scan time 5min, amplitude 4.2g. During the vibration, record the gyroscope output.
Vibration frequency: 20Hz~2000Hz;
Vibration Duration: 5min per axis;
Vibration direction: X, Y and Z three directions;
Vibration spectrum: as shown in Figure 1.
Figure 1 Vibration Spectrogram
Requirements for the Index:
Scanning of the gyro shows no resonance between 20Hz-2000Hz;
Random vibration: the absolute value of the Bias value in the vibration and the average value of the Bias before and after the vibration is required to be less than 0.1º/h.
1.2.2.2 The mechanical impact shall be in accordance with the requirements of Table 2.
Table 2 Impact test conditions
|
Peak acceleration (g) |
30 |
|
Duration (ms) |
10 |
|
Impact times |
3 times in each direction |
|
Waveform |
Half sine wave |
|
Direction |
X,Y,Z |
|
Note: the interval between two impacts shall not be less than 1.5s |
During the impact process, the product is in the energized state, after the mechanical impact, product should be able to work normally, and the bias change value before and after the impact is less than 0.05º/h.
2 Communication Protocol
2.1 RS-422 Mode (two-way)
Two-way serial port communication, in line with the RS-422 interface standard;
External trigger signal, 10~2000HZ square wave;
The gyro effective data is 32 bits;
Temperature valid data is 14 bits;
Data transmission wave rate is 460.8kbps;
Data format:
Data transmission format: each frame is 11 data, including: the first is the start bit (0), the second to ninth is the data bit, the tenth is the parity digit, the 11th is the stop bit;
Verification method: parity verification;
Gyro effective data is 32 (highest is symbol bit, 0 is "+", 1 is "-"), temperature effective data bit is 14 (highest is symbol bit, 0 is "+", 1 is "-");
The 7th byte is the check bit, which is the XOR value of the first 5 bytes (gyro data) in the packet; the 8th byte is the low byte of the temperature data; the 9th byte is the high byte of the temperature data; the 10th bit is the check bit, which is the XOR value of the first 2 bytes (temperature data) in the packet;
Figure 2 Dimension of FS70ZK
The J30-15ZK outlet is defined in Table 1.
Table 1 Electrical Characteristics of Gyro Output socket
|
Pin |
Pin Definition |
Mark |
Color |
|
1 |
Serial port: Transmit+ |
TX+ (gyro signal +) |
Yellow |
|
2 |
Serial port: Transmit- |
TX- (gyro signal -) |
Orange |
|
3 |
Serial port: Receive+ |
RX+ (external sync signal +) |
Blue |
|
4 |
Serial port: Receive- |
RX- (external sync signal -) |
Green |
|
5, 13 |
Power +5V |
+5V |
Red |
|
6, 7 |
GND |
GND |
Black |
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