Page 115 - How It Works - Book of Amazing Answers To Curious Questions, 12

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-- Technology

LCD display Voucher
Vacuum User directional commands dispenser
The inside of the and transaction The total
microscope is a vacuum. information, as well as transaction
For a sample to survive it machine advertisements, - minus the
must sometimes be are displayed here. processing fee
specially prepared, often - is calculated and
being coated in gold, which Coin tray printed here on a
also enables it to conduct A depositing tray for the redeemable
electricity and release user's coinage. Small voucher.
detectable electrons. perforations in the tray filter
detritus from the collection.
Waste filter Coin sorter
Anode A slanted chute with a A mechanical
The negatively charged porous, grooved bottom hopper-based system
electrons are accelerated plate. Liquids fall through that filters coins by
and confined into a beam the plate and an internal fan size. Coins fall onto a
by a positively charged blows lint away. circular tray that
electrode, called an anode. agitates coins into
Escrow tray preset holes.
A tray that holds sorted and
tabulated coins prior to the
affirmation or rejection of Rejection chute
the transaction by the user. Rejected transactions lead
to coinage being returned
Objective lens Storage container to the user via a rejection
This magnetic lens focuses Affirmed transactions are chute. Foreign coinage is
the beam further onto a deposited from the escrow also rejected here.
specific area of the sample.
tray into a storage container
ready for removal by staff.
Maintenance printer Computer system
A secondary printer utilised by operating Currency calculation, processing
staff to receive statistical/operational fees and the operating software are
read-outs from the machine. controlled from a computer system.
Backscattered
electron detector
Additional electrons are
counted by another
detector that determines What's inside a
the composition of the
sample and also deduces
coin counter?
the elements present.

The sdence of sorting and technology
of tabulation explained
urrency-counting machines -such to-value ratios logged within its tabulation
as those proliferated by American software that- after the coins have been
C companyCoinstar-work in a mechanical weighed and converted into a
two-stage process, firstly separating coins binary format- it can draw upon to
by type and secondly tabulating the partial calculate the coins' total value. This
or total coinage. method of calculation, when combined
Individual coin types are separated by a with all other stacks of coin types, allows
hopper-based filtering system, which the total value of inserted coins to be
usually involves coins being deposited determined. This information is then
onto a circular tray via a top-mounted presented to the user via a front-mounted
chute, and then mechanically agitated into LCD display.
preset coin slots via the force of gravity. At Before transactions are completed,
this stage the hopper mechanism also however-affirmed by the user manually
Secondary filters out illegal or non-coinage, rejecting it - the machine's computational software
electron detector via a front-mounted return chute. As the deducts a processing fee from the tota I
As the beam strikes the legal coins are filtered from the tray, they coinage tabulated if the user wishes to
surface of the sample it drop through individual funnels into a collect/transfer the funds. This is usually
knocks the electrons
loose. By counting the holding container, where they are around ten per cent of the total value ofthe
number of electrons mechanically weighed. inserted coins. Once completed, the coin
released, a detector can
produce a magnified image The overall weight of an individual stack counter generates a redeemable voucher
of the sample. of coins is then assessed by a central from a front-mounted printer, which can
computer system. This has preset weight- then be cashed by store staff.

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