Basics: Avionics Sub-systems


INTRODUCTION TO ROCKET SCIENCE




Partitions of rocket w.r.t. mass: Ms + Mp + Md


 AVIONICS SUB-SYSTEMS


These are the electronic systems which are integrated in the recovery/payload part of rocket which work together to fulfil the task. They are: (1) Avionics Bay (2) GPS Bay (3) Ignition Box (4) Ground station

 

1. AVIONICS BAY

Avionics bay consists of four sub-systems:

* Flight computer
- The main function of flight computer is to read data from sensors like Barometer, Accelerometer etc.

* Memory
-They are of 2 types: Flash and SD card

* Apogee
-It helps in triggering the drogue parachute

* Main parachute
- This waits for the correct time for the drogue parachute to open


DIGITAL COMPUTERS

Digital computers are also known as personal computers. They are manufactured to process data in numerical form. The circuits in digital computers performs mathematical operations which are expressed in binary digits. They can also store results in the form of data for further use. 


ANALOG COMPUTERS

It shows data in the form of physical quantities. The main component is Operational Amplifier and is used in speedometers.


CLASSIFICATION OF MEMORIES

Memory stores binary instructions and data for the microprocessor. The read and write memory are created by registers and each of these registers has Flip-Flops which stores the bits. 


 APOGEE

The peak altitude at which the recovery rocket separates is known as apogee. It helps in triggering the drogue parachute. The apogee helps in separation of nose cone to release the parachute that will let the rocket down without breaking it.



Reference: University of Alaska



2. GPS BAY and 3. IGNITION BOX

   GPS module helps in finding the location of rocket where it has landed.
   Ignition box gives signal for the rocket launching.


Reference: Space Forest: Demonstrator rocket



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