Attitude and Heading Reference System

The Attitude and Heading Reference System AHRS-M-03 MEMS AHRS Module is capable of real-time measurement of the carrier’s roll angle, pitch angle, and heading angle, with real-time output. This model is characterized by its small size, low power consumption, light weight, and high reliability, meeting the application requirements of various fields.

Functions

The AHRS module can measure and output the roll, pitch, and heading angles of the carrier in real time.
It features power-on self-test and periodic self-test functions.
It has installation error correction functionality.
It can correct the attitude using an internal magnetometer or external sensors.

Specifications

Performance Indicator						Remarks
Attitude Accuracy	Heading		0.5° (RMS)
	Pitch		0.3° (RMS)
	Roll		0.3° (RMS)
Gyroscope	Range		±100°/s
	Full Temperature Scale Factor Nonlinearity		≤100ppm
	Cross Coupling		≤300ppm
	Zero Bias (Full Temperature)		≤±0.005°/s
	Zero Bias Stability		≤0.1°/h			(1σ, 10s smoothing, full temperature)
	Zero Bias Repeatability		≤0.1°/h			(1σ, full temperature)
	Bandwidth (-3dB)		25 Hz
Accelerometer	Range		±20g
	Cross Coupling		≤300ppm
	Zero Bias (Full Temperature)		≤1mg
	Zero Bias Stability		≤0.2mg			(1σ, 10s smoothing, full temperature)
	Zero Bias Repeatability		≤0.2mg			(1σ, full temperature)
	Bandwidth (-3dB)		≥100 Hz
Interface Characteristics
Interface Type		RS-422/RS232		Baud Rate	921600/115200bps (Configurable)
Data Format		8 data bits, 1 start bit, 1 stop bit, no parity check
Data Update Rate		100Hz
Environmental Adaptability
Operating Temperature Range		-40℃～+75℃
Storage Temperature Range		-55℃～+85℃
Vibration (g)		6.06gms，20Hz~2000Hz
Electrical Characteristics
Input Voltage (VDC)		+5V
Physical Characteristics
Dimensions (mm)		56mm×48mm×29mm
Weight (g)		≤120g