EO/IR Theory Flashcards
What are the three characteristsics of a photon?
No charge
No mass
Travels at the speed of light, c
Other than Amplitude, what is the second variable property of an EM wave?
Frequency
State the relationship between frquency and wavelength.
Inversely proportional
In which IR band do most Thermal Imaging systems operate?
Far IR
What is the definition of thermal crossover?
The point at which a known material is observed to produce the same thermal emissions as its surroundings
True or False:
“An IR image may be degraded by the presence of dust in the atmosphere.”?
True
True or False:
“An IR image may be degraded by the presence of water droplets in the atmosphere.”?
False
Why is thermal crossover important to aviators?
Understanding when our objectives will be their most/lesast observable will greatly improve the chance of mission success.
What is thermal shadow?
An area which, relative to it’s surroundings, is emitting less thermal radiation, suggesting that prior radiation was blocked by another objects presence.
IR systems will still work effectively if which type of particles are present in the atmosphere? (x)
When checking for moisture ingress in the MX10, how many pink quadrants would indicate the device is U/S?
2
What state must the MX10 be in if flying an not using the camera?
Stowed
What is the purpose of the ‘POL’ switch on the EOS hand controller?
Polarity of IR display (White/Black hot).
What is the function of the ‘Z Multi’ Switch on the EOS hand controller?
Changes the rate of the camera’s tracking.
What class of LASER is the MX10 LRF?
Class I
