1A 0.5deg Auto True MEMS Gyro North Finder MTBF

Auto True North Finding Gyro North Finder With Best Performance Low Cost 

Auto True North Finding Gyro North Finder With Best Performance Low Cost

1.1 Introduction

North finder is mainly used to find true north automatically. After get heading angle, if north finding inertial navigation start to move, it could output continuous changing dynamic tilt angle and heading angle. Polaris-II uses low speed drift MEMS gyro to find north, built-in IMU is used to measure tilt angle and direction reckoning. It has features of miniature, low power consumption, long usage life, high reliability.

1.2 working principle

MF100 is composed by MEMS gyroscope, dual axis accelerometer, rotation mechanical device and signal calculating circuit. Mini gyro north finder use speed gyro to measure the component at reference direction of earth rotation angular speed, and calculate the heading angle. The earth rotation angular speed is very slow and very hard to measure, so MF100 uses a high accuracy servo driving system, driving sensitive axis to rotate towards to one or multiple horizontal gyroscopes,by connecting the output under different heading angle and weak signal processing, the heading angle of the equipment is acquired. Since the earth rotation speed is ubiquitous and its direction is the true north, so the measurement of north finder is not subjected to magnetic interference. According to its working principle, the north finder should work at horizontal or closely horizontal level.

1.3 working principle

MF100 micro gyro north finder can get the angle of reference line to earth axis true north. MF100 use very low speed drift MEMS gyro in industry, so it is small, low power consumption, anti-shock, long time working life and high reliable, etc.

The wide temperature monitor could display true north angle and two axis inclination data in real-time, it could enter real-time heading relative measuring mode after once north finding(there is 0.1deg/min drift under relative measuring mode, advice: find north again after 10 minutes), it is for coal mining industry true north finding specially. Aviation plug is equipped, real time serial data could be got by upper computer for later analysis.

Current portable measuring equipment depend on digital compass. While digital compass is easily subjected to electromagnetic interference, usually it could not measure the heading angle precisely of the equipment relate to earth magnetic field and magnetic declination is hard to compensate. And GPS or flexible gyro is usually very big and heavy, or its anti-impact performance is not qualified on site, still they are not portable.

1.4 Features

• reliable,IP65
• low power consumption,24V,0.5A
• not affected by magnetic interference, do not depend on satellite
• portable, size 5.8*6.8*8.45CM
• measure static roll and pitch, static accuracy: 0.2°
• static true north finding, 1σ north finding accuracy 0.5°secΦ(Φ local latitude)
• after finding north, measure carrier dynamic roll and pitch angle, heading angle dynamic accuracy0.1-0.3°/min(optional)

1.5 Application

• weapon equipment
• equipment calibration
• construction
• well and tunnel measurement

1.6  Technical data

Our Company & Workshop View :

RION Technology Co., Ltd. is located in a fantastic city - Shenzhen. Our company is

a high technology company that integrates research, development, production and

sale, and is mainly engaged in the sale of inclinometer sensors, digital compasses,

digital dipmeters and acceleration sensors. These products are widely used in many

industrial control fields, such as automobiles, ships, airplanes, railways, medical facilities,

dam safety monitoring, oil drilling, coal mining and ocean surveying. Our company has

established good business relationships with many international famous companies.
We adhere to the service guideline of "Client-centered". "Client uppermost, credit first,

service best" is our business philosophy. Our company provides accurate, efficient,

civilized and complete services for clients.
Let us provide you with the best products. To save purchasing cost and time, contact us now.

Certificates & Test Reports :

We can offer :

•  Reliable high quality products and services 
•  Perfect whole system application solution 
•  Strong technical support before or after sales service 
•  Extend strong sales teams & distributors global 
•  OEM products as buyer's requests 

 Our main products :

• Single/Dual-axis High accuracy Inclinometer (digital , current , voltage, CAN output type etc.  )
•  2D / 3D Electronic Compass Sensor (RS232, RS485,TTL output, etc.)
• 1-Axis , 2-Axis, 3-Axis Accelerometer (digital , current , voltage output, etc.)
• 1-Axis , 2-Axis, 3-Axis Gyroscope((digital , current , voltage output, etc.)
• Single /Dual / Three-Axis Angular Gyro Sensor (RS232, RS485,TTL output, etc.)
• High performance MEMS Mini AHRS ( Attitude Heading Reference System ) 
• Other Agent Products PNI...etc

Order Process :

Before order pls contact us for confirm detailed informaiton such as model ,price ,lead time ...etc .

Payment ways :

T/T, WU or Paypal;

Delivery methods & Time :

DHL takes 3-5days ,  Fedex takes 2-7 days , UPS takes 3-7day , EMS takes 10-25days ;

Quality Policy :

We gurantee 1 year in free charge .

Storage :

Note usually we don't make any items in stock , samples customize time need around 3-7days .

Other more information please visit our website : www.rion-tech.net