Purpose: To provide a solution to bug that makes the toolbar containing icons smaller than it is supposed to be.

Last Updated: July 2020

When using the IMU GUI, it is possible that your window may appear as below. Note how the icon toolbar at the top is much smaller than it typically appears. The difference in the two windows can be seen in the image below.

Topics: IMU, Windows, GUI, Sizing, Icon, Small

Purpose: To direct product users to the LabVIEW drivers for the Inertial Labs IMU-P, MRU and INS.

Topics: MRU, IMU, INS, Driver, LabVIEW

 

Purpose: To describe the Inertial Labs ROS Driver Package for INS/MRU/AHRS/IMU.

Last Updated: December 8, 2020

Click Here to Download ROS Package for Inertial Labs Products

The InertialLabs_ros_package package is a linux ROS driver for GPS-Aided Inertial Navigation Systems (INS), IMU-P, AHRS and AHRS-10 of Inertial Labs. The package is developed based on the official SDK v0.2 for Linux. 

Topics: MRU, AHRS, IMU, INS, ROS, Driver

Purpose: The purpose of this article is to show the difference in resolution values for Gyroscope, Accelerometer, Reference Altitude, Reference Position, GNSS Altitude, and GNSS Position data. The table below shows the units for the measurement and compares the maximum resolution for the corresponding data type for both Regular Resolution and HR Resolution. This applies to all Inertial Labs products (with exception of unit that does not contain GNSS receiver) unless specified otherwise.

Topics: MRU, AHRS, IMU, INS, OptoINS, OptoAHRS, Resolution, High, Difference, WOM, HR, Datatypes

Purpose: Adjusting general settings of Baud Rate, Data Rate, and Low Path Filter in GUI for IMU.

Last Updated: July 2019

Changing the Baud rate:

• After connecting IMU open the GUI
• Click on "Test Options"

Topics: IMU, IMU-P, Data, LPF, Guide, Baud, Filter

Purpose: To explain the orientation angles used for Inertial Labs devices and how they relate to one another.

Last Updated: August 2019

What's the difference and why does it matter?

Euler angles are generally what most people consider when they picture 3D space. Each value represents the rotation in degrees (it could technically be in any units) around one of the 3 axes in 3D space. Most of the time you will want to create angles using Euler angles because they are conceptually the easier to understand. The flaw is that Euler angles have a problem known as the gimbal lock that prevents certain rotations when two axes align. The solution: quaternions.

Topics: MRU, AHRS, IMU, INS, AHRS-II, Angles, Quaternion, Euler, Gimbal, Lock

Purpose: To configure the output offset in GUI; internally known as configuring “PV measuring point relative to the IMU”. This feature is to be used if the user wishes to output IMU data from another set point on the system. A common example would have the INS/IMU sitting near the CG of a aerospace vehicle, and you wish to compute position data for a fixed point located on the wing.

Topics: IMU, INS, Arm, PV, Lever

Purpose: To provide clarity into known driver issue for Windows PC. This is a known issue for Inertial Labs products but unfortunately is at the fault of Windows. However, there is a solution.

Last Updated: October 2019

Issue: The root cause of this misbehaving mouse issue is that Windows immediately sees some data coming from a USB serial port when USB is connected, because unit is auto-started. Windows is known to treat this situation (traffic on a newly created serial port) as a serial mouse connected to that port. So, it captures the serial port with a serial mouse driver.

Topics: Issue, Control, Problem, USB, Serial, MRU, AHRS, IMU, Mouse, Computer, INS