Miniature Attitude Heading Reference System
The 3DM-GX3® -25-OEM is a high-performance, miniature Attitude Heading Reference System (AHRS), utilizing MEMS sensor technology. It combines a triaxial accelerometer, triaxial gyro, triaxial magnetometer, temperature sensors, and an on-board processor running a sophisticated sensor fusion algorithm to provide static and dynamic orientation, and inertial measurements. Its form factor is ideally suited for OEM applications.
Easiest to Integrate
- smallest, lightest industrial OEM AHRS available
- simple integration supported by SDK and comprehensive API
Best in Class
- precise attitude estimations
- high-speed sample rate & flexible data outputs
- high performance under vibration
- reduced cost and rapid time to market for customer’s applications
- aggressive volume discount schedule
- 3DM-GX3® -25 OEM Product Datasheet
- 3DM-GX3® -25 OEM Mounting and Connector Information
- 3DM-GX3® -25 MIP Quick Start Guide
- 3DM-GX3® -25 Single Byte Quick Start Guide
- MIP Hard and Soft Iron Calibration Quick Start Guide
- 3DM-GX3® -15,-25 MIP Data Communications Protocol
- 3DM-GX3-25 Single Byte Data Communications Protocol
- 3DM-GX3® Startup Settings
- Using Dataloggers with Inertial Sensors
- Phihong PSA05R-090 Power Supply
- 3DM-GX3® -25 Up and North Compensation
- Working with the 3DM-GX3® -25 Update Mode
- Using the 3DM-GX3® -25 Capture Gyro Bias Function
- 3DM-GX3® -25 Coning and Sculling
- Operating the 3DM-GX3® -25 Software on the Mac OS X
- 3DM-GX3® -25 Software CD (includes Drivers, Monitor 1.7 software, Hard and Soft Iron Calibration software and Manuals
Software Development Kit
- MIP LabVIEW Sample Code
- 3DM-GX3-15,-25 MIP Software Development Kit
- Dewesoft™ 3DM-GX3® -25 Single Byte Plugin Instructions
- Dewesoft™ 3DM-GX3® -25 Single Byte Plugin
In order to return any LORD MicroStrain® product either for repair or return, you must contact us for a Return Merchandise Authorization number (RMA). If you purchased directly from LORD MicroStrain® in the United States, please contact your Sales or Support Engineer to obtain an RMA. If you purchased directly from a LORD MicroStrain® distributor, please contact your distributor to obtain an RMA.Direct link: view
LORD MicroStrain® complete terms and conditions of sale may be found at: http://files.microstrain.com/terms-conditions-sale.pdfDirect link: view
If you are located in the United States, LORD MicroStrain® supplies you directly. If you are in located in another country, LORD MicroStrain® products are available exclusively from LORD MicroStrain® distributors. Please use this locator to determine your distributor: http://www.microstrain.com/support/internationalDirect link: view
To enable customers to try our standard products risk free, LORD MicroStrain® offers a 30 day return on the purchase of a starter kit. In order to take advantage of this offer, a purchase order or payment for the starter kit is required when the order is placed. 30 day trial details may be found at: http://www.microstrain.com/support/warrantyDirect link: view
LORD MicroStrain® Support Engineers are always available to support you in any way we can by phone, email, SKYPE or Live Chat from our home page. Contact details may be found at: http://www.microstrain.com/support/contact-supportDirect link: view
LORD MicroStrain® insures all products shipments to their full value unless the customer specifically states a different method.Direct link: view
The term ‘static’ accuracy refers to measurements made when the inertial unit is not moving and the on-board orientation algorithm has recovered from any sensor over-ranging.
The term ‘dynamic’ accuracy refers to measurements made while the inertial unit is moving and not exceeding the measurement range of the individual on-board sensors (accelerometers, gyroscopes, magnetometers).
The 3DM, 3DM-DH and FAS-A are designed to measure static rotations.
The 3DM-GX3 family is designed to measure both static and dynamic rotations.Direct link: view
Here is a technical note on the subject: http://files.microstrain.com/NumberedTechNotes/Inertial/TN-I0025-3DM-GX3-25-Capture-Gyro-Bias.pdfDirect link: view
Here is a link to a detailed technical note: http://files.microstrain.com/Orientation%20Conversion%20formulas.pdfDirect link: view
#664: Is it possible to use the RS-232 interface of LORD MicroStrain® inertial sensors with a serial port emulator (i.e., with a USB to serial adapter)?
Yes. We have had good success with several types of off-the-shelf USB to serial port adaptors, such as those from IOGear and Keyspan, which may be purchased through any of the electronics products distributors.Direct link: view
Here is a link to a detailed technical note: http://files.microstrain.com/3DM-GX3-25_OEM_Footprint_and_Connector.pdfDirect link: view
The standard unit uses a specialized Ulti-Mate brand micro-DB9. This technical note contains more details: http://files.microstrain.com/TN-I0023_Inertia-Link_3DM-GX2_3DM-GX3_Pin-Outs.pdf
The OEM unit uses a Samtec FTSH-105-01-F-D-K. This technical note contains more details: http://files.microstrain.com/3DM-GX3-25_OEM_Footprint_and_Connector.pdf
LORD MicroStrain® suggests that you purchase additional connectors with your order.Direct link: view
The 3DM-GX3 USB and RS-232 communication interfaces are built to satisfy the standard USB-IF and EIA specifications. LORD MicroStrain® provides 6 foot cables as standard. Many techniques can be used to extend the length of the communication interfaces including powered USB hubs, USB boosters, RS-232 extenders, etc.Direct link: view
The 3DM-GX3 is calibrated at the factory. The user is also provided with Hard and Soft Iron Calibration software to field calibrate the GX3 in situ. This video further describes the function: http://www.microstrain.com/video/hard-soft-iron-calibration
Important note: Hard and soft iron calibration is not required for the 3DM-GX3-15 and the 3DM-GX315 OEM. These units do not contain magnetometers.
From time to time the 3DM-GX3 may need recalibration. For example, as a result of coming in contact with magnetic influences (magnets, motors, etc.), residual magnetism may be picked up by the on-board components which will alter the calibration. Another example: the 3DM-GX3 receives a severe shock, slightly altering the position of the circuit boards in relation to the enclosure, again altering the calibration. In these cases the unit should be returned to the factory for recalibration.
Direct link: view
No.Direct link: view
Yes. Any number of units can be operated by a host at the same time. Several considerations surround this implementation (primarily computing power) and we suggest that you discuss your requirements with LORD MicroStrain® sales or a support engineer.Direct link: view
For the standard units, here is a link to a detailed technical note: http://files.microstrain.com/TN-I0023_Inertia-Link_3DM-GX2_3DM-GX3_Pin-Outs.pdf
For the OEM units, here is a link to a detailed technical note: http://files.microstrain.com/3DM-GX3-25_OEM_Footprint_and_Connector.pdf
Direct link: view
Yes, there are no limitations. However, if a user requires a ‘zeroing’ of the axes, this must be done in the user’s external application. Good practice dictates that the orientation matrix be used to calculate such zeroing. Please also be aware of the mathematical singularity in Euler angles.
The user should be aware that the Euler angle formulation in general contains a mathematical singularity at Pitch = +90 or –90 degrees. In practice, poor numerical results will be present if the Pitch angle exceeds +/-70 degrees. In applications where the Pitch angle cannot be guaranteed to exceed these values, it is recommended that the orientation matrix output be utilized instead.Direct link: view
Yes. The sampling rates are user adjustable.
For the -15 and -25, the user may set the sampling rate at up to 1000 Hz depending on the data quantity.
For the -35, the user may set the AHRS sampling rate up to 1000 Hz depending on the data quantity and the GPS sampling rate up to 4 Hz.
For the -45, the user may set the Navigation sampling rate up to 100 Hz.
Direct link: view
The baud rate is user adjustable and may be set to 9600, 19200, 115200 (default), 230400, 460800, and 921600.Direct link: view
Yes. The presence of strong magnetic fields or large magnetic materials will distort Earth’s weak local magnetic field and this will influence the on-board magnetometers. A hard and soft iron calibration software utility is provided to field calibrate the 3DM-GX3-25, 3DM-GX3-25 OEM, 3DM-GX3-35 and 3DM-GX3-45.
The 3DM-GX3-15 and 3DM-GX3-15 OEM do not contain magnetometers and are not affected by hard and/or soft iron interference.
Direct link: view
The following orientation outputs formats are available:
- Angular Rate
- Magnetic Vector
- DeltaAngle and DeltaVelocity
- Orientation Matrix
- Euler Angles (pitch, roll and yaw)
- ...and more.
A detailed description of these outputs can be found in the Data Communications Protocol manual of each product.
Direct link: view
The standard units support both USB and RS-232 interface.
The OEM units support both USB and TTL.Direct link: view
Yes. We provide a complete data communications protocol manual which describes in detail each and every command and response that is available with the device. Applications may be developed in any programming environment (C, VB, LabVIEW, Linux, Matlab, etc.) which supports serial communication.Direct link: view
We provide a general application for Microsoft XP/Vista/Win 7 operating systems that configures, reads, displays and saves data generated by the device. This application (MIP Monitor) supports both the USB and RS-232 communication interfaces.Direct link: view
When you initially purchase a 3DM-GX3, a starter kit (SK) provides you with everything you need to get started! SKs include a 3DM-GX3 module, communication and power cables, software, manuals and GPS antenna if applicable. In subsequent purchases you may only require additional modules or other individual components. Several communication interfaces are available creating several starter kit variations.Direct link: view
±0.5° pitch, roll, heading typical for static test conditions
±2.0° pitch, roll, heading for dynamic (cyclic) test conditions and for arbitrary angles
Direct link: view
Accurate navigation and orientation under dynamic conditions such as:
- Inertial Aiding of GPS
- Unmanned Vehicle Navigation
- Platform Stabilization, Artificial Horizon
- Antenna and Camera Pointing
- Health and Usage Monitoring of Vehicles
- Reconnaissance, Surveillance, and Target Acquisition
- Robotic Control
- Personnel Tracking