SSOC
Sun Sensor on a Chip
Sun Sensor on a Chip (SSoC), is based on MEMS fabrication processes to achieve highly integrated sensing structures for high accurate sun-tracking, positioning systems and attitude determination.
SSOC-A60
Analog Interface
SSOC-A60 device measures the incident angle of a sun ray in two axes. The high sensitivity is based on geometrical dimensions of the design.
Every sensor is calibrated and characterized, and a look-up table is provided for its application. The use of a metal shield and a cover glass in the optical eye minimizes the ageing of the device under high radiation levels.
Sun Sensor for small satellites with analog interface
Technical specifications:
|
Parameter |
SSOC-A60 |
Unit |
Comments |
|
Sensor type |
2 axes |
– |
Orthogonal |
|
Field of view (FOV) |
±60º |
º |
Angular size of the view cone |
|
Accuracy |
< 0.3 |
º |
3σ |
|
Precision |
< 0.05 |
º |
– |
|
Average consumption |
<2 |
mA (light) |
– |
|
Supply voltage |
3.3/5 |
V |
– |
|
Output voltages |
0-3.3 / 0-5 |
V |
4 analog output photodiode voltages |
|
Mass |
25 |
g |
– |
|
Housing |
6082 |
Aluminum, black anodizing |
SSOC-D60
Digital Interface
Dos axis accurate sun sensor
SSoC-D device measures the incident angle of a sun ray in both axis. It includes a microprocessor that directly provides the sun light incident angles and their derivatives without external calculations, via RS-422 interface.
The high sensitivity is based on geometrical dimensions of the design. The use of a metal shield and a cover glass minimizes the ageing of the device under high radiation levels. Every sensor is calibrated and includes an internal thermistor.
SSoC-D is a miniaturized digital sensor for the sun position determination
Technical specifications
|
Parameter |
SSoC-D60 |
Unit |
Comments |
|
Sensor type |
2 axes |
– |
Orthogonal |
|
Field of view (FOV) |
±60º |
º |
Angular size of the view cone |
|
Accuracy |
< 0.3 |
º |
3σ |
|
Precision |
< 0.05 |
º |
– |
|
Average current |
70 |
mA |
|
|
Supply voltage |
5 |
V |
– |
|
Mass |
35 |
g |
– |
|
Communication protocol |
Digital I/F: RS-422 |
||
SPACE EQUIPMENT PRODUCTS
NanoSSOC
Nano Sun Sensor on a Chip (nanoSSOC) is a two-axes and low cost sun sensor for high accurate sun-tracking, pointing and attitude determination. The device measures the incident angle of sun ray in two orthogonal axes, providing a high sensitivity based on the geometrical dimensions of the design.
ACSS
Advanced Coarse Sun Sensor (ACSS) of Solar MEMS is a redundant coarse and analog sun sensor designed and developed for mass production and satellite constellations. This sensor measures the incident angle of sun ray in two orthogonal axes, providing a high sensitivity based on the geometrical dimensions of the design.
HSNS
Horizon Sensor for Nano and Micro Satellites (HSNS) of Solar MEMS is a Quad Thermopile sensor for Earth detection and Nadir vector determination. This device measures the infrared radiation from Space and from Earth with 4 IR eyes, providing accurate and reliable detection and attitude determination.