measured objects, and are generally called 'beta' thickness gauge Presently, such gauges together
and 'gamma' thickness gauge.
with
the accessory
manufacturing,
for
computers
comprehensive
are used in monitoring
paper
measuring of
the
quantity,
thickness, water content and ash content of paper,
amd to carry
out closed loop control, thereby greatly improving paper quality.
(2) Reflex thickness gauge: These are used for measuring
thickness of plating on various composite materials which
be measured
by penetrative type thickness gauges
the
cannot
(gold-plated
metal
copper, nickel-plated plastic, aluminizing). The 'beta' scattered
reflex plating thickness gauge measures the thickness of
plating or non-metal coating from the different
scattered reflex of beta radiation from materials with different
intensity
of
atomic numbers.
3.
Density meters
These can
be divided into
pentration-type
and
scattered
reflection meters:
(1)
Penetration-type density meters: These can
continously,
acccurately and reliably measure the density or concentration of
materials
such as
the
measuring flowing through sealed pipes,
density of mud and mining slurry, controlling the proportion of
coal and water in hydraulic coal conveying pipes
in coal mines,
or the proportion of water and sand in water and sand fillings.
This is used to measure
(2)
soil
Scattered reflection density meter:
density
and silt content of rivers.
When used
in
silt
in
particular,
it can
accurately and
quickly
measurement,
measure the silt content of a river, to allow an understanding of
the laws
governing
in the changes
sand.
This
is of
great
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