STIM277H MEMS GYROSCOPE

HERMETIC PACKAGE 3 AXES MEMS GYROSCOPE

STIM277H is a small, tactical grade, affordable, robust and reliable, ultra high performance (Bias Stability 0.3°/h, ARW 0.15°/√h) 3 axis MEMS gyro module built into a hermetic package. The package is a hermetic aluminum enclosure with a glass-to-metal sealed electrical micro-d connector and a laser-welded lid to secure long-term hermetic operation. All parts are tested for fine and gross leak to conform to MIL-STD-883J, Class H.

An integrated 32-bit microcontroller enables flexible user configuration. Electronic axis alignment is standard.

Each axis is factory calibrated for bias, sensitivity and compensated for temperature effects to provide high-accuracy measurements. The unit runs off a single +5V supply and communicates via a RS422 interface. The use of a 32-bit RISC ARM microcontroller provides flexibility in the configuration, like choice of output unit, sampling frequency, LP filter -3dB frequency and RS422 bit-rate and protocol parameters. For more advanced users, STIM277H may be put in Service Mode. In this mode all the configuration parameters can be temporarily or permanently changed by overwriting the current settings in the flash memory. Service Mode also provides the ability to perform single measurements, perform diagnostics and obtain a higher detail in the status byte.

ADVANTAGES

Shock & Vibration Resistant

The STIM 3-Axes MEMS Gyroscope Modules perform exceptionally well across many applications due to their very low vibration and shock sensitivity. They are designed to withstand 1500g of shock forces. Due to this extreme shock resistant capability, the gyroscopes are qualified according to high-performance aircraft vibration standards.
Long-Term Reliability & Robustness

STIM277H modules have been qualified to an equivalent of 20
years operating life. They also have an MTBF at 70k operating
hours at 52 °C (according to MIL-HDBK 217), which is
outperforming current FOG systems. Tuning of excitation and
detection frequencies, as well as perfectly balanced vibrational
masses, result in very low vibration and shock sensitivity in any
direction.
High-Dynamics Applications

STIM277H is a good fit for satellite attitude & orbit control systems
(AOCS) and launchers. Other applications are Industrial,
Aerospace and Defense markets, for various platform
stabilizations, pointing and navigation systems (e.g. antennas,
cameras and gimbals), attitude heading reference systems
(AHRSs), inertial navigation systems (INSs) for UAVs, AUVs,
AGVs, UGVs and ROVs, smart munitions, 3D mapping systems,
range finders, trains, robotics and more.
For many applications STIM277H directly replaces FOGs and
improves system solutions with respect to robustness, reliability,
size, weight, power and cost.