quality
Above: The Quantum
Faro Arm - a versatile
measuring system
Right: Renishaw’s Revo
overcomes the limitations
of 3-axis systems
GE
Inspection Technologies
Electrical conductivity
checks made easy
Eddy current instrumentation from GE,
measures conductivity with accuracy and
repeatability to check non-ferrous metals
for identity, grade and condition.
Hand-held meters monitor conductivity
during production processes or
in-service.
To discover how we can measure up
to your quality control standards
contact us today or visit
www.ge.com/inspectiontechnologies
GE imagination at work
up to 5 microns and spherical measurement volume of
1.2 metres - is designed specifically for in situ
dimensional control and inspection of features and
geometrical shapes. The latest addition to Hexagon’s
range of portable CMMs comes with automatic probe
recognition, an ergonomic counterweight and intuitive
measurement software. The wraps also came off the all
new, fifth generation laser tracker at MACH. The
portable Absolute CMM is claimed to be the most
robust, accurate, and thermally stable tracker on the
worldwide market. The tracker - the most compact yet
to emerge from Leica Geosystems - offers scaled up
features in a scaled down housing for the best available
portability and ease of handling on the factory floor.
Meanwhile, one of Britain’s last remaining
independent manufacturers of metrology products
launched a new product. Building on the success of its
popular Micro Vertex height gauge, Eley Metrology has
introduced the Vertex 800. Its main distinguishing
feature is that it is driven completely by air bearings.
This non-contact drive mechanism, unlike
conventional mechanical bearings, eliminates cyclic
error, and also lowers the contact pressure of the probe.
Furthermore, due to the ‘self-cleaning’ properties of air
bearings, there will be minimal wear and tear.
In addition the patented frictionless counter balance
is designed around an ‘air pocket’ and eliminates the
need for a conventional counterbalance weight which
would have the disadvantage of introducing friction in
operation, undermining accuracy. As with Eley’s
GE Inspection Technologies • Coventry CV4 8AF • tel: 0845 6015771
Enquiry Number: 45 Enquiry Number: 46
66 MWP july 2008
CMMs, it
does not use ‘error
mapping’. This approach
is often used to correct errors
in the straightness of the column -
but for a height gauge it is
intrinsically flawed as the ‘map’ depends
on the probe being a specific distance
from the column, as well as squareness
issues if a conventional indicator is
employed.
The unit is perpendicular to less than 4
microns at the front and 5 microns at the
side, without the use of error correction.
The user can therefore check straightness
using a standard dial indicator; unlike
conventional height gauges the user
doesn’t need an expensive transducer
probe to hook up to the height gauge
itself. Another important feature is that
the central column is made from a
triangular spindle, whereas
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