Tronics Microsystems has released the following article on the provision of high accuracy inertial sensors in advanced air mobility (AAM).
Precise Positioning and Navigation
Positioning and navigation of advanced air mobility (AAM) platforms calls for high accuracy inertial sensors able to output reliable data when operating in GNSS-denied environments, while facing high vibrations and fast-changing temperature conditions. As an example, an eVTOL flying in urban canyons will have to rely on a precise inertial navigation system to maintain its trajectory when the GNSS signal becomes too weak or unavailable.
The inertial sensors used for Attitude and Heading Reference Systems (AHRS) and Inertial Navigation Systems (INS) must demonstrate an excellent capability to reject the vibrations created by the propellers and have to be repeatable and stable in a wide range of temperatures.
Tronics’ high-performance MEMS accelerometers and gyros provide a lightweight, low-power and miniature alternative to analog quartz accelerometers and Fiber Optic Gyros, thus increasing VTOL flight autonomy, while featuring the tactical-grade performance level required for the navigation of dynamic systems.
Ensuring Maximum Accuracy & Reliability
EVTOL makers must ensure maximum accuracy and reliability of their platforms. In the high-performance market, we are today the only provider of both digital closed-loop MEMS accelerometers and gyros components with tactical-grade performance, which enables a faster integration of Tronics sensors into multi-axis Inertial Measurement Units (IMU) and INS.
From a technical point of view, the use of a closed-loop electronics architecture in our accelerometers and gyros enables excellent vibration rectification performance, which is a key requirement for dynamic applications used in advanced air mobility.
High Stability Gyro – GYPRO4300
To provide a complete inertial sensors portfolio to our customers, our recently announced GYPRO4300 high stability gyro brings to the market a miniature, digital and low-SWaP (Size, Weight and Power) alternative to Fiber Optic Gyros and Dynamically Tuned Gyros that paves the way for a new generation of precise positioning, navigation, and stabilization functions in dynamic applications.
This gyro features a ± 300 °/s input measurement range, 200 Hz bandwidth, 1 ms latency and <2°/h Bias Instability with a closed-loop architecture that ensures high linearity and stability in dynamic environments. GYPRO43000 is the first product reference from our GYPRO4000 gyro platform that will be extended in the coming months with new product reference demonstrating high performance in terms of noise and bias stability.
