Silicon Designs Unveils MEMS Accelerometer Modules for Inertial Navigation

Published: 18 Oct 2018

Silicon Designs MEMS accelerometer

Silicon Designs, a designer and manufacturer of rugged industrial-grade MEMS capacitive accelerometer chips, has announced the introduction of its Model 2227-025. This is the first in a planned family of high-performance, MEMS accelerometer modules for inertial navigation and tilt applications (non-ITAR), such as UAVs (unmanned aerial vehicles) and other unmanned systems.

The Model 2227-025 has both an industry standard form factor and pin compatibility with many of the quartz-based accelerometers currently used in these applications. This allows the Model 2227-025 to serve as both a lower-cost alternative and direct drop-in replacement for many industry quartz-based inertial navigation accelerometers.

The rugged design of the Model 2227-025 MEMS accelerometer module combines two patented, capacitive, silicon sense elements, together with a precision, custom CMOS integrated circuit, in a compact, low mass, hermetically sealed LCC package. These ±25 g modules are assembled on a high-temperature open printed circuit board (PCB) with a circuit that converts the differential output voltage of the MEMS accelerometer into a current directly proportional to the amount of applied acceleration. This design allows the Model 2227-025 to achieve the low-noise, high-stability, long-term repeatability and low power needed for many of today’s inertial navigation applications. Final testing is conducted on a temperature-tumble-system, thereby providing thermal calibration parameters that simplify accelerometer use with the customer’s own real-time temperature compensation and modeling software.

Two additional g-ranges, to be sold as the Model 2227-010 (±10 g) and Model 2227-050 (±50 g), respectively, are expected to follow soon.

Posted by Mike Ball Mike is our resident technical editor here at Unmanned Systems Technology. Combining his passions for teaching, advanced engineering and all things unmanned, Mike keeps a watchful eye over everything related to the unmanned technical sector. With over 10 years’ experience in the unmanned field and a degree in engineering, Mike’s been heading up our technical team here for the last 8 years.