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SINT Technology s.r.l. Tel: +39.055.8826302 · Fax: +39.055.8826303 · [email protected] · www.sintechnology.com
Strain Gage Measurements
SINT Technology s.r.l. Tel: +39.055.8826302 · Fax: +39.055.8826303 · [email protected] · www.sintechnology.com
SINT Technology s.r.l. Tel: +39.055.8826302 · Fax: +39.055.8826303 · [email protected] · www.sintechnology.com
Strain gauge measurements
The electrical resistance strain gauge technique is based on measuring the variation in electrical resistance under-
gone by a strain gauge grid, which is bonded to the component under analysis and subjected to strain.
It is an extremely versatile test method as it enables the elastic and plastic strain of any material to be obtained in
actual operating conditions, even in hostile environments, with an appropriate choice of components for the strain
gauge installation.
SINT Technology has a long track record in strain gauge measurement and over the years has developed measu-
rement techniques in collaboration with research centres and universities.
SINT Technology performs a wide range of activities in
the strain gauge measurement sector, such as:
Installation, measurement and data analysis
services both in situ and in laboratory
Training and certification of specialists with CIC
PND approved examinations
Production of measuring equipment and trans-
ducers.
Our services are characterised by:
the professionalism guaranteed by highly skilled
engineering technicians
dynamism and flexibility
willingness to perform testing on the customer's
plant in all parts of the world
detailed reporting in accordance with the customer's
requirements and the main international technical
Installation, measurement and analysis services
SINT Technology offers services for many different applications on field and in laboratory, for instance:
Measurement of static and dynamic strains
Experimental stress analysis
Measurement of torque and torsional vibration on rotating shafts
Strain gauge measurements on pressure vessels
Residual stress analysis
Experimental modal analysis
Installation of strain gauges
Design and construction of transducers (eg, load cells)
Strain Gage Measurements
SINT Technology s.r.l. Tel: +39.055.8826302 · Fax: +39.055.8826303 · [email protected] · www.sintechnology.com
Measurement of static and dynamic strains
SINT Technology is able to perform static and dynamic measurements, using strain gauges and other types of
sensors. The exerience of the staff and vast array of instrumentation at their disposal makes it possible to carry
out a wide range of applications.
Construction of transducers
SINT Technology can produce force and torque transducers, especially designed for specific applications, that are
able to operate in the most diverse conditions.
Experimental stress analysis
Experimental stress analysis is used to determine the stress states of structures or components subjected to ac-
tual load conditions or for verifying and calibrating finite element calculation models.
Strain Gage Measurements
SINT Technology s.r.l. Tel: +39.055.8826302 · Fax: +39.055.8826303 · [email protected] · www.sintechnology.com
SINT Technology employs highly skilled resources who
have expertise in strain gauge applications on field
and in the laboratory.
Installation of strain gauges
Residual stress analysis
SINT Technology is a laboratory specialised in measu-
ring residual stress by strain gauge methods. Some of
the main methods are:
the Sachs method, also known as the boring-out
method
Layer removal
Sectioning
Hole-drilling
the ring-core method.
In addition, SINT Technology produces and develops
the only piece of equipment in the world for automatic
measurement of residual stress by the blind hole me-
thod, called RESTAN (REsidual STress ANalyser).
Measurement of torque and torsional vibration on rotating shafts
Analysing vibration and torsional resonance is an extremely effective dia-
gnostic tool for identifying abnormal conditions during operation of rota-
ting machinery which can result in damage.
Measurement of torque is used to calculate transmitted mechanical po-
wer.
SINT Technology has telemetry systems and software for performing tor-
sional vibration analyses on a wide variety of machinery.
Strain gauge measurements on
pressure vessels
SINT Technology performs experimental tests on pres-
sure vessels, for example, for determining stresses oc-
curring during hydrostatic testing of components.
Strain Gage Measurements
SINT Technology s.r.l. Tel: +39.055.8826302 · Fax: +39.055.8826303 · [email protected] · www.sintechnology.com
Instrumentation
Experimental modal analysis
Modal analysis is used to understand and model the
dynamic behaviour of a structure. It can be carried out
both to determine the natural frequencies and mode
shapes of a structure and to verify accuracy and cali-
brate a finite element model (FEM). The strain gauge
method can be used in applications where other types
of sensors (for instance, accelerometers) could alter
the dynamic characteristics of the structure.
SINT Technology can count on an extensive range of instruments for measuring and analysing strain, with a wide
availability of acquisition channels and instrumentation able to cover many types of tests. Some of the instruments
are:
Multi-channel signal conditioners
(ac and dc)
Multi-channel data acquisition sy-
stems
Digital strain indicators
Telemetry systems
Training Courses
SINT Technology is an examination centre recognized by CICPND (the Ita-
lian Coordination Center for Nondestructive Testing) for providing first and
second-level certification courses and examinations for electrical resistance
strain gage testing engineers.
SINT Technology is also a member of AIAS (the Italian Association for
Stress Analysis) and periodically organizes courses, study days and work
groups on analysis of the behaviour of materials, components, structures
and systems.
Standards
Field of Application Description Standard code
Stress Analysis Non-destructive tests. Inspection with electrical re-
sistance strain gauges
UNI 10478:1-2-3-4-5
Residual Stresses Standard Test Method for Determining Residual
Stresses by the Hole-Drilling Strain-Gage method
ASTM E 837-08
Strain Gage Measurements
SINT Technology s.r.l. Tel: +39.055.8826302 · Fax: +39.055.8826303 · [email protected] · www.sintechnology.com
SINT Technology s.r.l. Tel: +39.055.8826302 · Fax: +39.055.8826303 · [email protected] · www.sintechnology.com
Contact Us
Via delle Calandre, 63 - 50041 Calenzano (FI) ITALY
Tel: +39.055.8826302
Fax: +39.055.8826303
www.sintechnology.com
VAT IT04185870484
Recognitions
SINT Technology’s test laboratory is accredited to standard ISO/IEC
17025:2005 by the Italian accreditation body ACCREDIA with
certificate no. 0910
Certification of conformity to the requirements of standard
UNI EN ISO 9001