ER-FIMU-50 Minimum FOG IMU (Same performance to KVH 1775)

Author:ericcointernational 2024-03-01 18:06:37 15 0 0

ER-FIMU-50 Minimum FOG IMU

Introduction
ER-FIMU-50 FOG IMU is a minimum cost-effective inertial measurement device for navigation, control and dynamic measurement. The system adopts high reliability closed-loop fiber optic gyroscope and accelerometer, and ensures the measurement accuracy through multiple compensation techniques. Strict technology is adopted in the manufacturing process to ensure that the angular motion and linear motion parameters of the carrier can be accurately measured under harsh conditions.
The product has a great user experience. In addition to the wide-voltage power supply, users can also configure the output bandwidth, data update rate, communication port baud rate and communication protocol according to their needs. 

Features
Minimum optical fiber IMU
Full temperature compensation
Strong shock resistance and vibration resistance
Bandwidth>100Hz
Data update rate: 100Hz~4000Hz
Baud rate configurable, up to 921.6Kbps
Weight<600g
Wide voltage supply 9V~31V
Power consumption 4.8 W

Applications
AHRS
Guidance control system 
Vehicle and ship attitude measurement
Inertial/satellite integrated navigation system
Drilling system
Mobile mapping system
Satellite communication in motion

Specifications

FOG Gyro
Measuring range500°/s
Bias stability0.5°/h
Bias repeatability0.5°/h
Scale factor non-linearity100ppm
Bandwidth50Hz~200Hz
Angular random walk0.02°/sqrt (h)
Accelerometer
Measuring range25g
Bias stability100ug
Bias repeatability100ug
Scale factor non-linearity300ppm
Electrical/Mechanical Interface
Power supply9V~31V
Power<4.8W
Starting time3s
InterfaceRS-422
Update Rate100Hz~4000Hz
SizeF89mm*73mm
Weight<600g
Operating environment 
Working temperature-40°C~60°C
Storage temperature-55°C~70°C
Vibration6.06g (rms)
Impact80g/3ms

Interface Definition

External use of J30J-15TL connector for communication 

No.Definition
1RS422_Tx+
2RS422_Tx-
3RS422_Rx-
4RS422_Rx+
5/
6CFG_Rst-
7Msync-
8TOV_OUT-
9GND
10VDD
11Msync-
12TOV_OUT+
13CFG_Rst-
14DGND
15/

Communication Protocol

FOG IMU default timing broadcast mode output IMU data, output frequency 4K, 19 bytes of data per frame, baud rate 921600bps, 1 bit start, 8 bit data, 1 bit stop, no check, multi-byte variables, high bytes first, low bytes later. Communication protocols can also be customized to the user’s requirements.

No.NameEquivalentUnitData TypeRemark
10xCC//Unsigned integer fixed frame head
2Send a count1/Unsigned integer0-200, 255 breakdown
3-5X Gyro0.00006D/Sec.IntegerAngular rate
6-8Y Gyro0.00006D/SecIntegerAngular rate
9-11Z Gyro0.00006D/SecIntegerAngular rate
12-13X Accelerometer0.008M/Sec2IntegerAccelerated speed
14-15Y Accelerometer0.008M/Sec2IntegerAccelerated speed
16-17Z Accelerometer0.008M/Sec2IntegerAccelerated speed
18Temperature1degree centigradeInteger/
19Checksum1/Unsigned integer2-18 bytes


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