Datasheet

Powerful Sensing Solutions for a Better Life
AHRS440
MEMS-BASED AHRS SYSTEM
The MEMSIC AHRS440 is a compact standalone
attitude and heading reference system that
provides roll, pitch and yaw measurement data in
both static and dynamic environments.
The AHRS440 can accept external GPS aiding
inputs for optimized performance, and is available
in standard and high range sensor configurations.
Features
• Roll, Pitch, Heading and 9DOF
Inertial Outputs
• Accuracy < 0.2 deg
Platform Stabilization
UAV Flight Control
• Output Data Rate > 100 Hz
The AHRS440 combines highly reliable MEMS sensors (gyros and
accelerometers) with low noise magnetometers to provide accurate
attitude and heading in a small and rugged environmentally-sealed
enclosure. The AHRS440 provides consistent performance in challenging operating environments and is user-configurable for a wide
variety of applications.
•High-Range Sensor Options
(400 deg/sec and 10g)
•GPS Aiding Input
•Low Power < 3W
•High Reliability, MTBF > 25,000 hours
•Analog Output Option
•Rugged Sealed Enclosure
Applications
Certifications
•Unmanned Vehicle Control
• DO-160D Environments
•Land Vehicle Guidance
•Avionics Systems
•Platform Stabilization
9-42VDC @ 350mA
User Configuration Commands
GPS Aiding Data
Phone: 408.964.9700
RS 232 (A)
RS 232 (A)
RS 232 (B)
AHRS440
Fax: 408.854.7702
Roll, Pitch, Heading,
Rate, Acceleration and BIT
E-mail: [email protected]
w w w. m e m s i c . c o m
AHRS440
MEMS-BASED AHRS SYSTEM
Performance
AHRS440
Heading
Range (°)
Accuracy1, 2, 3 (°)
Resolution (°)
± 180
< 1.0
< 0.1
Analog Output Option
Attitude
Range: Roll, Pitch (°)
Accuracy1, 2, 3 (°)
Resolution (°)
± 180, ± 90
< 0.2
< 0.02
Angular Rate
Range: Roll, Pitch, Yaw (°/sec)
Bias Stability In-Run 2, 4 (°/hr)
Bias Stability Over Temp 2 (°/sec)
Resolution (°/sec)
Angle Random Walk (°/√hr)
Bandwidth (Hz)
± 200 (± 400 option available)
< 10
< 0.02
< 0.02
< 4.5
25
MEMSIC offers the NAV-DAC440 analog
interface adapter for customers wishing
to use the AHRS440 in analog data
acquisition systems. The NAV-DAC440
converts the AHRS440 serial digital data
to 9-channel BNC analog outputs.
Acceleration
Input Range: X/Y/Z (g)
Bias Stability In-Run 2, 4 (mg)
Bias Stability Over Temp 2 (mg)
Resolution (mg)
Velocity Random Walk (m/s/√hr)
Bandwidth (Hz)
± 4 (± 10 option available)
<1
<4
< 0.5
< 1.0
25
Specifications
NAV-VIEW 2.0
Configuration & Display Software
NAV-VIEW 2.0 provides an easy to use
graphical interface to display, record and
analyze all of the AHRS440 measurement
parameters.
Environment
Operating Temperature (°C)
Non-Operating Temperature (°C)
Enclosure
-40 to +71
-55 to +85
IP66 Compliant
Electrical
Input Voltage (VDC)
Power Consumption (W)
Digital Interface
9 to 42
<3
RS-232
Physical
Size
(in)
(cm)
Weight (lbs)
(kg)
Connector
3 x 3.75 x 3
7.62 x 9.53 x 7.62
< 1.3
< 0.58
DB15, D-sub 15-pin Male
Other Components
Each AHRS440 is shipped with an
interface cable, MEMSIC’s User’s Manual
and NAV-VIEW 2.0 configuration and display software.
Support
For more detailed technical information
please refer to the 440-Series User’s
Manual available online at:
www.memsic.com/Support
Ordering Information
Model
Description
AHRS440CA-200
Attitude & Heading Reference System (Standard)
AHRS440CA-400
Attitude & Heading Reference System (High Range)
This product has been developed exclusively for commercial applications. It has not been tested for, and makes no representation or warranty as to
conformance with, any military specifications or its suitability for any military application or end-use. Additionally, any use of this product for nuclear,
chemical or biological weapons, or weapons research, or for any use in missiles, rockets, and/or UAV’s of 300km or greater range, or any other
activity prohibited by the Export Administration Regulations, is expressly prohibited without the written consent and without obtaining appropriate
US export license(s) when required by US law. Diversion contrary to U.S. law is prohibited. Specifications are subject to change without notice.
Notes:1 With valid GPS-Aiding input data . 2 1-sigma value.3 During steady level flight. 4 Constant temperature, Allan Variance Curve.
MEMSIC Inc.
San Jose, California
w w w. m e m s i c . c o m
6020-0087-05 Rev A
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