Satellites and subsystems > Attitude > Attitude actuators > Control moment gyroscopes (CMGs) > High Precision Three-Axis MEMS Gyroscope KT-MEMS-1
Key highlights
KT-MEMS-1 is a high-precision three-axis MEMS gyroscope, whose accuracy index data has reached the index level of medium and low precision fiber optic gyroscopes. At the same time, this MEMS gyroscope has the advantages of small size, light weight, and low power consumption, which can replace medium and low precision fiber optic gyroscopes.
Applications
- Can be applied in orbit below GEO
Key features
- Measurement range: -20 °/s~+20 °/s
- Constant zero bias (total temperature): ≤72 °/h
- Zero bias stability (at full temperature): ≤20 °/h (after compensation)
- Zero bias stability (at room temperature): ≤0.7 °/h (1s smooth, 1 σ)
- Zero bias repeatability: ≤1 °/h (1 σ)
- Angle random walk: ≤0.03 °/h1/2
- Scale factor nonlinearity: ≤300ppm
- Scale factor repeatability: ≤100ppm
- Cross coupling coefficient: ≤10 '
- Refresh rate: ≥50Hz
- Bandwidth: ≥40Hz
- Dimensions: (44.8 ± 0.5) × (38.6 ± 0.5) × (21 ± 0.5) mm
- Weight: 40 ± 10g
- Power consumption: ≤1W@5V
Flight heritage
First launched into orbit in October 2021 and currently has 7 sets in orbit with good performance.
Manufacturing
Pioneer Satellite has constructed China's first smart automated production line for satellite core components, with an annual output of 200 sets of satellite core components. The production line has successfully mass-produced solar arrays, elevating the product yield from 70% to over 98%. It also makes the production cycle 50% shorter, cuts the cost to 30% and enables a two-thirds reduction in lead time compared to traditional modes compared to traditional methods.
Export control
Such products are sold globally.
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Last updated: 2025-03-12
High Precision Three-Axis MEMS Gyroscope KT-MEMS-1
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