High Performance Attitude Reference System Ahrs

Digital Output - Full-posture Three-dimensional Electronic Compass

ER-EC-365A:
1. Heading accuracy 0.3~0.5°, resolution 0.1°;
2. Measurement range 0~360°;
3. Wide temperature working -40~+85℃.

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Introduction

Digital Output - Full-posture Three-dimensional Electronic Compass

Introduction
The ER-EC-365A is a high-precision full-posture three-dimensional electronic compass that integrates an industrial-grade three-axis accelerometer and three-axis magnetometer. Using hard-iron and soft-iron calibration algorithms, it provides high-precision heading information within the full tilt range. With low power consumption, it is more suitable for measurement systems sensitive to power consumption and volume.
The product outputs the precise posture of the carrier, which can be used in full-posture rotation systems. It has hard-iron, soft-iron, and tilt compensation functions, enabling it to output high-precision calibrated heading. The three-axis fluxgate uses a CPU to calculate the heading in real time, and the three-axis accelerometer compensates the heading angle, ensuring accurate heading and data acquisition even in extremely harsh environments. Featuring a small size and low power consumption, it is widely applied in oil logging, antenna pointing, vehicle navigation, attitude systems, and many other fields.

Features
1.Built-in ultra-low-power, high-performance three-axis digital magnetic sensor with a measurement range of -800 to +800μT.
2.Multiple data interfaces (optional RS422/RS232 and CAN) for easy installation and use.
3.Precision aluminum alloy housing for high reliability, suitable for medical equipment.

Applications
Oil logging equipment, medical devices, tilt-based monitoring, angle control for various engineering machinery, bridge and dam inspection

Product Model Information

Item	ER-EC-365A
Angular velocity, acceleration	√
Attitude angle	√
Heading angle	√

Technical Specifications

Attitude Orientation Performance
Heading accuracy	<0.5° (RMS, pitch<85°)
Resolution	0.1°
(Pitch/Roll angle) range	±90°/360°
Pitch/roll accuracy	0.4°
Hard-iron calibration	yes
Soft-iron calibration	yes
Tilt calibration	Yes

Sensor Parameters

Accelerometer
Parameter	Value			Unit
Range	±3			g
Linear acceleration sensitivity temperature coefficient	±100			ppm/°C
Zero offset	0.1			mg
Zero offset temperature coefficient	±0.10			mg/°C
Acceleration noise density	150(X/Y)/300(Z)			μg/√Hz
Bandwidth	1600(X/Y)/550(Z)			Hz
Magnetometer
Parameter	Period			Unit
	50	100	200
Measurement range	-800~+800			μT
Gain parameter	20	38	75	LSB/μT
Sensitivity	50	26	13	nT
Noise	30	20	15	nT
Noise density at maximum single-axis sampling rate	1.2			nT/√Hz
Repeatability within 200μT	15	8	8	nT
Operating temperature range	-40~+85			°C
Power Supply and Interface
Supply voltage	3.3~12V
Power consumption	≤0.5W
Interface protocol	RS422 or RS232, CAN
Operating temperature	-40℃~+85℃
Size	114mm20mm20mm
Output data rate	50HZ