TM 5-6675-319-14
GLOSSARY
ABBREVIATION/TERM
Actuator . . . . . . . . . . . . . . .
Amplitude.
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Angstrom . . . . . . . . . . . . . . .
APL . . . . . . . . . . . . . . . . . .
Automatic
Platen
Lifter
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Cathode Ray Tube . . . . . . . . . . .
CRT . . . . . . . . . . . . . . . . . .
Chopper
Inverter
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Dodging. . . . . . . . . . . . . . . .
Enhancement. . . . . . . . . . . . . .
EXP . . . . . . . . . . . . . . . . . .
Fast
Axis
Control
Loop
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FC . . . . . . . . . . . . . . . . . .
Latitude . . . . . . . . . . . . . . .
Linear Signal . . . . . . . . . . . . .
DEFINITION
Mechanism for moving or controlling
something indirectly instead of by
hand.
Maximum departure of the value of an alter-
nating current or wave from the average
value.
Unit of wave length of light equal to one
t e n - b i l l i o n t h o f a m e t e r.
A u t o m a t i c P l a t e n L i f t e r .
Motor-driven mechanism that raises and
lowers the hood.
Vacuum tube in which an electron beam is
projected on a fluorescent screen to produce
a bright spot.
Cathode Ray Tube.
D e v i c e t h a t i n t e r r u p t s d i r e c t c u r r e n t a t
s h o r t r e g u l a r i n t e r v a l s a n d c o n v e r t s i t t o
a n a l t e r n a t i n g c u r r e n t .
Process of holding back light
areas of a sensitized surface
printing those areas.
Increase density and contrast
from certain
to avoid over-
of a photo-
graphic image by chemical treatment-.
Exposure.
Controls speed at which a spot of light
sweeps in horizontal direction.
Footcandle .
A unit for measuring illumi-
n a t i o n.
Range of exposures within which a film or
plate will produce a negative or positive of
s a t i s f a c t o r y q u a l i t y .
O u t p u t t h a t i s d i r e c t l y p r o p o r t i o n a l t o i ts
i n p u t .
GLOSSARY-1
