• Want to help us with this year's BoS Trials?
    Let us know before 30 June. See this thread for details
  • Looking for HSC notes and resources?
    Check out our Notes & Resources page

What are the advantages of photoelectric technologies over photographic methods? (1 Viewer)

lemnok

New Member
Joined
Mar 10, 2013
Messages
13
Gender
Undisclosed
HSC
2010
My understanding is this:
- quicker to collect and store information
- photographic film takes time to be developed
- the results can be more easily digitised, providing more convenient analysis
- photographic plates only detect certain wavelengths, whereas photoelectric technologies e.g. CCDs can be made to detect a broader range of wavelengths
- photographic plates are large and fragile, making them impractical to use in orbital telescopes
- There isn't a linear relationship between the size of a dot produced on a photographic plate and the brightness of the star that caused this dot. Thus, calibrating and analysing photographic plates is more difficult than with photoelectric technology.
- CCDs are more sensitive


Anything anyone else could add to it?
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top