MEASURE THICKNESS
IN METRIC OR IMPERIAL UNITS |
MEASURE
THICKNESS IN METRIC OR IMPERIAL UNITS |
Non
intrusive thickness measurements
of
Heat
Exchangers, Tubing ,Pressure vessels
,Castings ,Forgings ,Boilers, Plastic
, metal and glass pipe Machined
Parts, Axles ,Rails,Wheels, Storage
Tanks, Steamlines, Flanges , Ship
hulls ,Decking Airframes, Aircraft
windows,Plates ,Slabs,Blooms ,Billets
,Bars ,Plastic Sheets ,Pipes ,Rolls
Glass Plates ,Beams ,Extrusions
,Bridges and many other surfaces
that are sonically conductive
Description:
The EES TG 11
is a multi purpose industrial type
ultrasonic thickness gauge. It uses
the transit time ultrasonic wave
propagation principle to measure
the thickness of materials of several
types including metals and plastics.
The probe acts as a sender and receiver
of a 5 MHz ultrasonic signal and
an internal counter calculates the
time taken for the signals sending
and receiving through the solid
being measured. The EES TG 11 can
be set at different acoustic velocities
depending on the material being
measured. The instruction book includes
a table of acoustic velocities for
some of the commonly used materials.
In the absence of the acoustic velocity
of the material being measured,
it is still possible to measure
materials of this kind if a representative
sample is available of a known thickness.
Reliable and easy measurements can
be made on storage tanks, heat exchangers,
machine parts, rails, plates, wheels,
forgings , castings and pressure
vessels.
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Applications
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Wall
thickness measurements of hard materials
, piping and hull plates |
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General
inspection of metals including steel,
cast iron, aluminium, copper, brass,
titanium sheet metal, tanks, ships and
piping systems |
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Inspection
of glass , ceramics and hard plastics |
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Features
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Built
in calibration test block |
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Small
and light weight |
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Detachable
sensor piece |
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Easy operation |
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Specifications:
Range:
0.039in to 11.81in or 1mm
to 300 mm
Resolution: 0.1 mm
Display: 4 Digit
Liquid Crystal
Velocity: 1000 –
9000 m/s
Battery: Operated
2 x AA 20 hour operation and flashing
when battery is low
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Alarm:
High & Low Alarm limit
setting.
Dimensions: 156mm
X 80mm X 32mm
Calibration Block:
±0.2mm Steel
Standard Sensor Operating
Temperature: 0 – 50
°C (other options available)
Automatic Power Off: within
2 minutes
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The TG-11 is a hand
held microcontroller based ultrasonic thickness gauge. It
operates on two AA type batteries and is very easy to use.
How an Ultrasonic Thickness
Gauge Works
An Ultrasonic thickness gauge is a "TRANSIT
TIME MEASURING DEVICE" working on a pulse-echo principle.
A burst of ultrasound is generated by
striking a piezo-electric crystal of the transducer with
an electrical pulse.
The sound then travels through the delay
line of transducer across the layer of ultrasonic couplant
and is then transmitted into the material being measured.
The sound pulse will continue to travel
through the material until it reaches a material of a substantially
different physical characteristic from the test material
(e.g. air). The air then acts as a transmission barrier
to ultrasound, hence it is reflected back to the transducer.
The time required by an ultrasound
burst to make a round trip through the test material is
accurately measured by the highly stable timing mechanism
inside the instrument.
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