High Performance MEMS North Finder True North Navigation Seeker Static Gyro Compass Survey Instrument

NF1400 north finder is mainly used to determine true north orientation and horizontal attitude, and has the function of short-term dynamic orientation and attitude maintenance. It is mainly composed of high-precision MEMS gyroscope and accelerometer, micro servo motor, solution processing unit, etc. The true north is determined by multiple positioning method. It has the characteristics of high precision, small size and low cost, and is suitable for mining, field survey and other applications. The main characteristics are as follows:

Small size, easy to carry;

The multi position north finding algorithm is adopted, and the north finding accuracy is up to 0.2 °, without binding coordinate values;

The north seeking time is better than 3 minutes;

The horizontal attitude accuracy is up to 0.06 °;

The working temperature is -40 ℃~60 ℃;

The size is only 58mm × 44mm × 58mm

零件编号 :
NF1400
订单（最小起订量） :
1

产品描述

Product Series and Parameters

Items	Technical Indicators
North finding accuracy (1 σ)	0.2 ° sec φ (RMS, alignment time 150s)
Attitude alignment accuracy	0.06 ° (RMS)
Heading and attitude maintenance accuracy	Static can be maintained, dynamic ≤ 0.2 °/min
North seeking time	150s (adjustable, negatively correlated with north finding accuracy)
power supply	10V～36V
Power consumption	≤2W
Requirements for working conditions	Inclination ≤ 15 °, strictly static during north seeking
working temperature	-45 ℃~70 ℃
interface	RS422、RS232
size	58mm × 44mm × 58mm.

Application Scenarios

MEMS North Finder application

The NF1400 is a high-performance MEMS-based north finder that integrates three-axis MEMS gyroscopes and three-axis MEMS accelerometers, delivering full-temperature compensated inertial/attitude (including north-finding) outputs via RS422 (up to 200 Hz)—well-suited for applications such as inertial navigation and attitude stabilization.

Aerospace

Aviation

Weapon

FAQ

Q1.How does the sensor determine true north without GPS?

A: The NF1400 uses MEMS gyroscopes and accelerometers to measure earth’s rotation angular velocity at multiple positions, self-compensating errors via embedded processing. This allows true north calculation without magnetic sensors or GPS.

Q2.What is the typical north-seeking time?

A: North-seeking time is ≤150s (adjustable, with accuracy inversely proportional). For example, 150s achieves 0.2° RMS accuracy.

Q3. Can it work in strong magnetic interference?

A: Yes. It relies on MEMS inertial sensors and multi-position earth rotation measurement, avoiding magnetic field dependence. It performs stably in steel structures, vehicles, or electromagnetic noise.

热门标签 :

指北针

基于MEMS的寻北技术

微型寻北装置

用于定向的微机电系统

用于精确方位角测定的MEMS传感器

MEMS磁北定位器

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