GT Precision LVDT Gauging Transducer0 pages

DISPLACEMENT
GT Precision LVDT Gauging Transducer
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Very high accuracy
Precision linear bearings
Miniature
High cycle life
Stainless steel
Infinite resolution

These transducers are for displacement / position measurement. They make an accurate position
measurement of the movement of the armature (the sliding part) relative to the body of the displacement
transducer.
This transducer uses the Linear Variable Differential Transformer (LVDT) principle which means that it is
probably the most robust and reliable position sensor type available. The strength of the LVDT sensor's
principle is that there is no electrical contact across the transducer position sensing element which for the user
of the sensor means clean data, infinite resolution and a very long life.
The GT series gauging transducer employs precision linear bearings to optimise the LVDTs measurement
precision and repeatability.

Spring return version.
Our spring displacement transducer has bearings to guide the armature inside the measurement sensor and a
spring which pushes the armature to the fully out position. Spring return LVDTs are appropriate where it is not
possible to connect the transducer armature to the moving component being measured.

End (axial) exit cable.
Type
GT500Z
GT1000
GT2500
GT5000

L
26mm
53mm
58mm
87mm

X
7.25mm
14.2mm
20.3mm
22.0mm

8.0mm

B- (No clamp zone)
6mm
14mm
18mm
30mm

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X

L

Type

Range

GT500Z
GT1000
GT2500
GT5000

±0.5mm
±1mm
±2.5mm
±5mm

20131118

Linearity error
(% F.S.)
<±0.25
<±0.25/±0.1
<±0.25/±0.1
<±0.25/±0.1

Total weight
7g
11g
13g
16g

0

B

Spring force
at X
1.0N
0.8N
1.1N
1.5N

1/2

Spring rate
1.7N/cm
2.6N/cm
2.6N/cm
1.5N/cm

Inward overtravel
0.3mm
1.4mm
0.8mm
1.3mm

Outward
over-travel
0.3mm
0.3mm
0.3mm
0.3mm

Sensitivity
(nom)
110mV/V
150mV/V
375mV/V
700mV/V

www.rdpe.com/uk/gt.pdf

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