Adding our calibration layer into an existing project
Calibrating MEMS IMU
Choosing an IMU for a military project is not an easy task. Cost, size and performance, for example, are some crucial factors when making that decision. What happens if everything fits except key specifications of the IMU? We could not add one of our accurate MEMS IMU as the system was almost fully designed.
Our challenge was to upgrade the IMU with minimum changes to the customer system. We added our own hardware directly to the customer’s PCB. All readings from the MEMS IMU were diverted to our microprocessor, calibrated and then sent to the main processing unit. Mimicking the signals from the MEMS IMU offered zero changes to the system. Each card underwent a full temperature calibration on our 2 axes simulator, and had a unique set of calibration parameters.
With minimum changes to the system, we upgraded all 3 gyroscopes and 3 accelerometer signals from the MEMS IMU.
A small change can make a great difference!
