SDI-601 fiber optic strap-down Inertial Navigation System

 The SDI-601 system is a fiber optic strap-down Inertial Navigation System (INS) with high-precision. It is constituted with miniaturization high-precision 3 axles fiber gyro, high-accuracy quartz flexible accelerometer，high-precision I/F switching circuit, DC power source, etc. SDI-601 is adopted mature technology with digital temperature measurement and flexible PCB.

Applications:

Navigation / measuring basis / operation underwater / weapons underwater / small underwater vehicle / Guidance and Inertial Navigation underwater


SPC

Position accuracy

·With stand alone GPS aiding : superior to GPS accuracy

·With DVL aiding:3m per hour

·No aiding for 2 minutes:3m CEP

·No aiding for 5 minutes:20m CEP

·Pure inertial mode:1 mile per hour CEP

Heading accuracy

·With GPS aiding:0.05deg.

·With DVL aiding:0.1deg 1σ

·No aiding:0.06deg.

·Roll and pitch error: less than 0.01deg

Gyroscope accuracy

      ·Bias stability: cold start: 0.02 deg per hour;

                     stable condition: 0.007 deg per hour

·Bias repeatability: 0.01 deg per hour

·Scale Factor Nonlinearity: 50ppm

·Scale Factor Repeatability: 50ppm

·Angular Random Walk: 0.003 deg /h^1/2

Accelerator accuracy

·Measuring range: -15g to 15g

·Bias stability: 5*0.00001 g                             

·Bias repeatability: 5*0.00001 g

Rotation rate dynamic range

·Up to 300 deg per second

updat rate

·200Hz

Acceleration dynamic range

·-15g to 15g

MTBF(computed/observed)

·30,000hours

Operating/Storage temperature

·-20 to 60 centigrade degree  /-40 to 65 centigrade degree

Dimensions：160*160*160mm

Weight in air：less than 6kg

Water proof：IP67

Serial port：RS-422/RS-232

Power supply：20-32VDC

Power consumption ：less than 15W