ACW Submersible LVDT Displacement Transducer0 pages

DISPLACEMENT
ACW Submersible LVDT Displacement Transducer
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High accuracy
High cycle life
Stainless steel
Submersible
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.
Our submersible displacement transducers are designed to make measurements whilst submerged in suitable
liquids. Fluids which are non-magnetic can be allowed to flood the armature tube without affecting the
operation of the transducer.
This series of displacement transducer is available as either an unguided, captive or spring return version.

Unguided version.
On our unguided LVDTs the armature assembly is a separate component, to make a measurement the user
must guide the armature inside the body without touching the sides. Unguided position measurement
transducers are appropriate where external guidance is available and give truly non-contact operation

Shown with standard cable assembly, see below for options

0.81''

0.235''

Range

L

ACW500
ACW1000
ACW2000
ACW3000
ACW4000
ACW6000
ACW8000

±12.5mm (±0.5'')
±25mm (±1'')
±50mm (±2'')
±75mm (±3'')
±100mm (±4'')
±150mm (±6'')
±200mm (±8'')

20131118

Linearity error
(% F.S.)
<±0.5/±0.25/±0.1
<±0.5/±0.25/±0.1
<±0.5/±0.25/±0.1
<±0.5/±0.25/±0.1
<±0.5/±0.25/±0.1
<±0.5/±0.25
<±0.5/±0.25

0

+

0.187''

2.4''
Type

-

0.268''

X

L

X

Total weight

6.0''
7.1''
12.0''
16.5''
17.8''
24.9''
33.8''

1.5''
2.5''
3.0''
4.5''
5.0''
7.0''
10.0''

7oz
9oz
12oz
1lb
1lb
2lb
3lb

1/5

Armature
weight
0.7oz
0.9oz
1.4oz
2.0oz
2.5oz
3.7oz
5.0oz

M5x0.8, 0.6''
Inward overtravel
0.4''
0.9''
0.4''
0.9''
0.4''
0.4''
1.4''

Sensitivity
(nom)
0.7V/V
0.9V/V
1.5V/V
1.5V/V
3.2V/V
2.4V/V
1.5V/V

www.rdpe.com/us/acw.pdf