Array digital sun sensor

    Array digital sun sensor is the attitude measurement device for satellite attitude...

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Introduction

    Array digital sun sensor is the attitude measurement device for satellite attitude control subsystem. It determines the position coordinates of the sun in its body coordinate system by measuring the angle between sunlight vector and its main axis, then performing coordinate conversion and providing the attitude angles in two axes directions for satellite. It is mainly used to measure attitude angle of the...

Features

  aFirst, mount the sun sensor on a certain fixed component, making its detecting side towards the optical source.

  b Connect sun sensor with on-board electronic system via J14A20ZJ.

  c Turn on DC 5V power.

 d Read the related attitude information via the serial port after 10-30 seconds (wait for program configuration complete). Thus, sun sensor begins to work in normal.

 e After work, turn off 5V power.


Specifications

     The product’s power supply and data communication with onboard electronics are implemented via J14A—20ZJ connector. Its pin definition is shown in the following table.

Pin No.

Signal (functional )description

voltage V

 

Current A

Polarity

Remark

1,2

RX+





3,4

RX-





5,6

TX+





7,8

TX-





9

 none





10,11

ground





12

none





13,14

+5V





15

3.3V




Used for FPGA program downloading

16

TDO




17

TCK




18

TMS




19

TDI




20

shell





 power supply source

 Power supply source:DC5V±0.5V, ripple is less than 100mV.

Applications
Product Mission Record or Plan
sun sensor     —