Design Process: Phase 1
Problem Statement:
A sensor system is desired to study the effects of different forms of space radiation on various biological cells. This will aid in research to better understand the potential impacts to the human body in deep space.
Motivation:
This device will help further understanding of the biological effects of space radiation so as to help better protect future deep space travellers. Cancer research will also benefit from the knowledge gained.
Research Survey
Time was devoted to investigating the essential elements of the design;
a large portion of the research revolved around the understanding of their
functionalities. The main component, the CMOS sensor, was the most important to
understand, since it would ultimately guide the parameters of the rest of the design.
Main Components
CMOS Sensor
I2C Bus Processor
Complex Programmable Logic Device (CPLD)
Memory (SRAM)
USB Interface
Requirements & Specifications
High Resolution CMOS Sensor:
--Over 1.3MP resolution
--Below 5.2 micron pitch
--Optical format close to 1cm horizontal
--Upper 8 bit image data will be utilized
Durable:
--Capable of withstanding ionizing radiation
Cost:
--The cost per unit should be under $500
Well Documented:
--Operator's Manual
--Maintenance Manual
--Program Notes and Comments
--Individual Component Documentation
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