Fine Sun Sensors measure the sun vector on satellite body reference frame using specially designed optical structures and electronics. Sun vector information should be fed into the attitude determination and control system (ADCS) to facilitate the attitude determination process. Fine Sun Sensors are comparatively accurate than magnetometers; Moreover, they are smaller, lighter, cheaper, consume less power, and update faster than star trackers or earth sensors.
FSS100 was designed and manufactured by Tensor Tech feature for their tiny size. Customers can easily install these devices on top of their CubeSat. Moreover, a micro-controller is embedded into FSS100 with an error table for a tabulated correction. Therefore, optimal performance could be extracted via in-factory calibration in Tensor Tech; or, users can calibrate these sensors by themselves using the supported software.
Please noted that fine sun sensors and coarse sun sensors could only work when the satellite is orbiting to locations where the sun is capturable; in addition, a sun model calculation is necessary for telling the attitude of a satellite. Details could be found in the FSS100 user manual or consulting with Tensor Tech’s team.
- Type: 2 axis, digital sun sensor embedded with calibration error table and micro-controller
- Field of view (FOV): +/- 60 deg; 45 deg for the optimal performance
- Accuracy: +/- 0.1 deg with 45 deg of the FOV of view; +/- 0.5 deg with 60 deg of the FOV
- Sampling rate: 4, 8, 16, 32 Hz adjustable by the user
- Supply voltage: 3.3V
- Power consumption @ sampling: < 2mA
- Power require @ IDLE: < 0.5mA
- Dimensions: 20.00 × 10.00 × 5.70 mm
- Mass: < 4 g
- FSS100 communicate with the on board computer (OBC) or the ADCS computer with I2C interface. Supporting software will be provided for users to calibrate or making functional checks with the FSS100
- Fly heritage since 2021