ANDT Oil and Gas Brochure - MISTRAS Group, Inc.

Vibration Analysis
Combining IR and AU is essential to any comprehensive
PdM program, and applying AU provides
additional levels of safety during electrical inspections.
Electrical discharge, also known as carona,
can only be detected using AU, and the effects of
carona can be found with visual and IR inspection.
MOTOR CURRENT SIGNATURE ANALYSIS (MCSA)
Our periodic MCSA program detects motor faults
such as broken/cracked bars, as well as problems
with the high resistance joints on any AC induction
motor. Our advanced approach helps to identify
the probability and severity of these faults, while
trending values to allow ample time for scheduling
repairs.
ACOUSTIC EMISSION (AE)
Acoustic Emission is the term used when defects
in metals, plastics and other materials rapidly
release energy when subjected to mechanical
loading. The energy propagates in the form of high
frequency stress waves and these types of oscillations
are picked up by AE sensors on the surface of
the specimen and converted to electrical signals,
so-called bursts. The AE analysis is the characterization
of the bursts according to intensity and
frequency content. Analyzing bursts from several
sensors at well placed positions on the asset allows
for determination of the location of the AE
source(s) on the asset.
Thermography
www.mistrasgroup.com | +1.609.716.4150 | sales@mistrasgroup.com
LASER ALIGNMENT
Precision laser alignment of coupled machinery is
critical to maximizing the performance and availability
of machine trains. Misaligned machines are
more likely to experience seal and bearing failures
and can result in reduced product quality and
ultimately production shutdowns. Misalignment is
most frequently detected during routine vibration
data collection.
DYNAMIC ROTOR BALANCE
Dynamic balancing extends your equipment’s life
by eliminating vibration that destroys mechanical
components. MISTRAS can balance rotors in their
own bearings on site, utilizing portable equipment.
Precision On-site balancing drastically reduces
downtime and repair costs, while increasing
your productivity. Our staff brings extensive
balancing experience to your plant for virtually
every type, shape and size of rotor.
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