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Space

POLARIS

High-performance

Inertial Measurement Unit (IMU).

 

POLARIS IMU (2)

 

Product Description

POLARIS is an ITAR-free, Single Event Latch-up tolerant and high-performance Inertial Measurement Unit (IMU). It provides to user equipment on a digital RS422 interface, velocity increments and angle increments about three orthogonal measurement axes. Developed with the support of the European Space Agency (ESA), POLARIS is designed for short to medium-term space missions, including launchers, micro-launchers, landers and re-entry vehicles for which the driving issue is robustness to SEE, reliability and meeting performance at a reduced cost and size.

Specification

Additional product specifications, outline drawings and block diagrams, and test data are available on request.

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Gyroscope Technology

The core Gyro technology used in POLARIS is InnaLabs® patented and proven solid-state CVG technology  (Coriolis Vibratory Gyroscope). InnaLabs® CVGs are inherently stable, impervious to aging effects in space missions, low mass, low power consumption and achieve outstanding Angular Random Walk.

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Accelerometer Technology

The CVG perfectly balances with InnaLabs® miniature fused Quartz pendulous accelerometers. These accelerometers are derived from InnaLabs® AI-Q-550, which is an aerospace-grade design delivering dub-milli-g long term stability in high-dynamic environments. 

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How to Order

POLARIS will be released to market in Q4 2021. Prototypes available in Q2 2021 (on demand).

 

Parameters Values
POLARIS
Key Features
Measurement Range ±400°/s, ±40g
Bandwidth ≥ 100 Hz
Data Interface RS422 Data Interface, Asynchronous
Settable output data rate 200 Hz nominal
Supply voltages 15 VDC
Power Consumption 10 W
Diameter 112 mm x 132 mm x 145 mm (Height)
Mass ≤ 2 kg
Environments
Temperature -45°C  (-49°F) to +85°C (+45°F)
Shocks, SRS 10,000 g - 2kHz, Q=10
Random Vibrations ≥ 14.5 g rms
Gyroscope Performance
Angular Random Walk ≤ 0.01°/√hr
In-run bias ≤ 0.3 °/hr (1σ)
Bias erros (temp.) ≤1 °/hr (1σ) (BOL)
Scale Factor errors (all effects)  ≤ 500 ppm (BOL)
MTBF ≥30,000 hr (GM), ≥5,000 (RL)
Accelerometer Performance
VRW

≤ 100 µ.s/√hr (i.e. 0.001 (m/s)/√hr)

In-run bias ≤ 10 µg (1σ)
Bias erros (temp.) ≤ 300 µg (1σ) (BOL)
Scale Factor errors (all effects) ≤ 500 ppm (1σ)

 

 

Applications

POLARIS can be used in many space applications. 

 

Applications include the following

  • Micro-Launchers
  • Heavy Launchers
  • Cargo Launchers
  • Low Earth Orbit (LEO)
  • Telecommunications Satellites
  • Exploration Missions 
Launch Of Cargo Spacecraft Progress

Resources

Browse our library of inertial sensor technical papers for an in-depth view of our technology.

Customised Solution

InnaLabs® have the technology and resources to provide custom solutions to meet your project needs, with excellent pre and post-sale customer support. 

Flexibility for Project Requirements

InnaLabs® dedicated and experienced engineers are committed to customer satisfaction by providing innovative technology, quality products, and custom solutions to meet your project needs. More questions? Evaluations and low volume deliveries are available quickly and our sales team are waiting to hear from you. 

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Similar Products

InnaLabs® Inertial Sensors are available in a number of form factors.