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Imaging Infrared Seekers
A more common approach is to use an infrared waveband where there is a large amount of ambient light from the thermal emission of the background. There are three main infrared bands: - Near Infrared: 0.7 µm to about 2 µm. • Little thermal emission in this band, but can be used with laser illumination systems. - Mid-wave Infrared: 3 µm to 5 µm. • The mid-wave band is good for hot objects because thermal emission peaks in this waveband for aircraft and missile plumes. - Long wave Infrared: 8 µm to 14 µm. • The long wave band is good for room temperature scenes since the thermal emission peaks in this band for 300K. Infrared imagers are used in each of these bands, but there are a number of problems associated with their use and manufacture. - Silicon photodetectors do not work (CdHgTe). - The focal planes often require cooling to 77K. - Few are sold, and therefore need to be made to order, and are far more expensive that visible systems.
main difference between warping and without warping
Force, Moment, Velocity and Angular Velocity Components • Aerodynamic Force Components - X, Y, Z • Velocity Components - U, V, W (or Vx, Vy, Vx) • Angular Velocity Components - P,
Thrust augmentation: There are occasions when the maximum thrust from a basic gas turbine engine is inadequate and some method of increasing the available thrust is required wi
My question is that i am working in a petrochemical plant where in final stage disc ring reactor the barometric lag is chocked completely the system is under vacuum if i introduce
what is ray optics
How we can findout phase angle from oscilloscope?
Water enters a smooth thin-walled tube of 1 inch diameter at 50F and leaves at 150F. Heat is supplied to the water by condensing steam on the surface of the tube at a constant temp
Do you have fire engineer??
#question1.what is commercial paper
Explain electrons and holes in quantum walls.
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