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Unit 7: Appendix
CL408-412e Supplemental Manual
7-12 PN: 9001159A
Simultaneous To take place at the same time.
Sleeve A thin hollow material that is inserted onto another to provide proportionate spacing.
Snap Ring
A circular clip that may be applied to a shaft, etc. to prevent another object from moving - used
to retain objects in position.
Solid
An item that is not porous.
An item that is not transparent or translucent.
Spacer
Any object of purpose to maintain a specific distance from two other objects - example: a
sleeve or washer.
Spindle
A shaft or rod that is fixed on one or both ends and spins on its axis while maintaining its
projection.
SRAM
(Static Random Access Memory) A type of memory that is faster and more reliable than the
more common DRAM. The term static is derived from the fact that it doesn’t need to be
refreshed like DRAM.
Stainless Steel A shiny, mirror-like carbon steel alloyed with chromium to inhibit rust.
Steel
Metal that contains a specific percentage of carbon. The percentage of carbon determines its
strength, in addition to how prone it is to rust.
Stepper Motor An electrical motor designed to rotate in both directions and to move in incremented distances.
Sub-Assembly A group of components assembled to form a complete unit that is a part of a larger unit.
Switch
A small mechanical device when altered sends an electrical signal to influence a
predetermined activity. Unlike a button or key, switches may have multiple positions.
Tag
Relative to RFID, the transmitter/receiver pair of transceiver plus the information storage
mechanism attached to the object. Also referred to as Transponder.
Thermal Transfer
The printing method that creates an image by transferring ink from a heat activated ribbon
onto the media using the heat from a thermal printhead.
A printhead is composed of a set of pins referred to as “elements” which may be selectively
heated through electrical induction. Regular paper media is used in this application in
conjunction with the heat sensitive ribbon. The ribbon deposits a coating of dark material onto
the paper when exposed to intense heat.
Thermal transfer printing is more durable than direct thermal printing and is often used when a
label needs to endure longer than a year.
Thermodynamics
The science that deals with the relationship of heat and mechanical energy - also the
conversion of one into the other.
Threads The spiral grooves on the shaft of a screw,
Three-Dimensional
The three projectories of an object: X axis is the distance left and right, the Y axis is the
distance up and down, and the Z axis is the distance inward and outward.
Torsion Spring
A piece of wire bent into a spiral and connected on each end by different objects to allow them
to be pulled apart and then automatically return to their original position once released.
Transformer
A device used to increase or decrease electricity’s voltage and current. The device consists of
one or more windings (typically copper) which, the ratio of the number of turns inversely
determines the voltage change. The windings are wrapped around a magnetic core affecting
magnetic induction.
Transistor
A device used to amplify a signal or open and close a circuit. Is constructed of a
semiconductive material and is comprised of three terminals where one can be used to control
the flow of current through the other two.
Translucent When a medium is of a condition so as to allow light to filter.
Transparent When a medium is of a condition so one can see through it unfettered.
Transponder
Relative to RFID, the transmitter/receiver pair of transceiver plus the information storage
mechanism attached to the object. Also referred to as Tag.
Tread The act of an object making repetitive contact upon another that is in motion.
GLOSSARY