Press Next now s Releas -genera also lin se ation M ... - Metallux AG
Press Next now s Releas -genera also lin se ation M ... - Metallux AG
Press Next now s Releas -genera also lin se ation M ... - Metallux AG
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<strong>Press</strong>s<br />
<strong>Releas</strong><strong>se</strong><br />
<strong>Next</strong>-<strong>genera</strong><strong>ation</strong><br />
M<strong>Metallux</strong>x<br />
memb brane pootentiommeter<br />
—<br />
<strong>now</strong> <strong>also</strong> <strong>lin</strong>earizedd<br />
Leutenbbach-Nellmmersbach,<br />
, 27th Junee<br />
2012<br />
Metalluux<br />
MetaPott<br />
membranne<br />
potentioometers<br />
ha ave been ssuccessful<br />
on the ma arket for<br />
many yyears.<br />
Using<br />
the<strong>se</strong> <strong>se</strong>nsors,<br />
for eexample,<br />
measureme<br />
m ents of trannslatoric<br />
an nd<br />
rotary mmovementts<br />
are carriied<br />
out in mmechanica<br />
al and induustrial<br />
engiineering<br />
an nd,<br />
ever more<br />
frequeently,<br />
in thee<br />
automotivve<br />
industry y. As a resuult,<br />
the MettaPot<br />
mem mbrane<br />
potentiiometer,<br />
duue<br />
to its deesign,<br />
standds<br />
out prec ci<strong>se</strong>ly becaau<strong>se</strong><br />
of its extremely y long<br />
lifetimee.<br />
Membrrane<br />
potenntiometers<br />
consist of a very thin n foil, onto which a high-imped<br />
dance<br />
resistannce<br />
is screeen<br />
printed well as a ccollector<br />
fo oil with a loow<br />
resistance<br />
collect tor<br />
track. SSubstrate<br />
aand<br />
foil aree<br />
<strong>se</strong>parated<br />
from eac ch other by<br />
a spacer,<br />
which ke eeps<br />
them aapart.<br />
A meechanical<br />
pressure ppin<br />
brings th he resistance<br />
film intoo<br />
contact with<br />
the collector.<br />
Thee<br />
wiper systtem<br />
of the classical potentiome<br />
p eter is thus replaced by the<br />
collector<br />
foil and pressure ppiece.<br />
In thhis<br />
manner,<br />
as with evvery<br />
other conventio onal<br />
potentiiometer,<br />
thhe<br />
respective<br />
positionn-depende<br />
ent voltage<br />
can be mmeasured.<br />
. With<br />
this, weear<br />
and abbrasion<br />
on the resistance<br />
film ca annot occur.<br />
Fig. 1: Deesign<br />
of rotaryy<br />
and <strong>lin</strong>ear meembrane<br />
poteentiometers<br />
________________________________________________________________________________________<br />
___________________ ___________________ ___________________ ______________<br />
<strong>Metallux</strong> A<strong>AG</strong><br />
Robert-Boosch-Str.<br />
29<br />
D-71397 Leutenbach<br />
Tel<br />
Fax<br />
rotaary<br />
+49 (0) 7195/5 5980-0<br />
+49 (0) 7195/5 5980-300<br />
translatoriic<br />
Collecto or foil<br />
Spacer<br />
Resisto or foil<br />
Adhesiv ve on rever<strong>se</strong> siide<br />
info@metallux.de<br />
www.metal llux.de
<strong>Press</strong>s<br />
<strong>Releas</strong><strong>se</strong><br />
<strong>Next</strong>-<strong>genera</strong><strong>ation</strong><br />
M<strong>Metallux</strong>x<br />
memb brane pootentiommeter<br />
—<br />
<strong>now</strong> <strong>also</strong> <strong>lin</strong>earizedd<br />
Fig. 2: Opperating<br />
modee<br />
of a membraane<br />
potentiomeeter<br />
The areeas<br />
of applic<strong>ation</strong><br />
of the membbrane<br />
pote entiometerr<br />
have <strong>now</strong>w<br />
been<br />
expandded.<br />
Up unntil<br />
<strong>now</strong>, membrane<br />
ppotentiom<br />
meters havee<br />
been dessigned<br />
usin ng foil-<br />
to-foil technologyy<br />
and are ccharacteriized<br />
by the eir extremeely<br />
flat strucctural<br />
form m of less<br />
than 1mmm.<br />
The soole<br />
disadvaantage<br />
is the<br />
relative ely large noon-<strong>lin</strong>earityy<br />
of approx x. 1 %.<br />
With the<br />
new genner<strong>ation</strong><br />
off<br />
MetaPot membrane e potentioometers,<br />
the<br />
resistanc ce foil is<br />
<strong>now</strong> replaced<br />
byy<br />
a FR4 subbstrate.<br />
Thiss<br />
offers <strong>se</strong>veral<br />
advanntages<br />
at tthe<br />
same time. t<br />
On onee<br />
hand, ressistive<br />
inks ccan<br />
be u<strong>se</strong>ed,<br />
which allow extreemely<br />
highh<br />
life cycle data<br />
of moree<br />
than 25 mmillion<br />
cycles.<br />
Additionally,<br />
the e u<strong>se</strong> of FR44<br />
printed ccircuit<br />
mate erial as<br />
a carrieer<br />
allows a <strong>lin</strong>earizatioon<br />
of the rresistive<br />
track.<br />
Linearrity<br />
values bbetween<br />
+/-0.4% +<br />
(stroke length 50 mm) and + +/-0.3% (strroke<br />
length h 500 mm) can thus bbe<br />
realized d.<br />
Therefoore<br />
the meembrane<br />
potentiomeeters,<br />
with regard r to ttheir<br />
accurracy,<br />
are<br />
definiteely<br />
comparable<br />
with classic wipper<br />
potent tiometers.<br />
The u<strong>se</strong>e<br />
of 1 mm tthick<br />
FR4 pprinted<br />
circcuit<br />
materia al as basis for the resiistance<br />
tra ack has,<br />
in addition,<br />
in commparison<br />
tto<br />
a thin fooil,<br />
the adva antage thaat<br />
unevenness<br />
or<br />
contammin<strong>ation</strong><br />
off<br />
the substrrate<br />
does nnot<br />
influence<br />
the meeasuremennt<br />
results. Th his<br />
simplifiees<br />
the as<strong>se</strong>embly<br />
of thhe<br />
MetaPot<br />
potentiom meter considerably.<br />
With foil-to o-foil<br />
designss,<br />
a particle<br />
or even an air bubbble<br />
under the foil can<br />
lead to ddistortions<br />
and,<br />
con<strong>se</strong>qquently<br />
to ssignificant<br />
characterristic<br />
curve e devi<strong>ation</strong>s.<br />
MetaPoot<br />
membraane<br />
potentiometers<br />
aare<br />
hermetically<br />
glueed<br />
togetheer<br />
and thus s are<br />
protectted<br />
againsst<br />
environmmental<br />
effeects<br />
such as a dirt, dustt<br />
and moisture.<br />
With the t<br />
excepttion<br />
of the plug connnection<br />
theey<br />
meet the<br />
requiremments<br />
of IP667.<br />
They ca an <strong>also</strong><br />
be u<strong>se</strong>dd<br />
in explossive<br />
proteccted<br />
zones.<br />
The <strong>lin</strong>earized<br />
MetaaPot<br />
membbrane<br />
potentiiometers<br />
aare<br />
obtainaable<br />
in stroke<br />
lengths between 50 and 500<br />
mm. Of cour<strong>se</strong>, c<br />
in addition<br />
to <strong>lin</strong>eear<br />
systemss,<br />
<strong>lin</strong>earizedd<br />
rotary <strong>se</strong>nsors<br />
with ddiameters<br />
of up to 40 00 mm<br />
are <strong>also</strong>o<br />
availablee.<br />
________________________________________________________________________________________<br />
___________________ ___________________ ___________________ ______________<br />
<strong>Metallux</strong> A<strong>AG</strong><br />
Robert-Boosch-Str.<br />
29<br />
D-71397 Leutenbach<br />
Tel<br />
Fax<br />
+49 (0) 7195/5 5980-0<br />
+49 (0) 7195/5 5980-300<br />
info@metallux.de<br />
www.metal llux.de
<strong>Press</strong>s<br />
<strong>Releas</strong><strong>se</strong><br />
<strong>Next</strong>-<strong>genera</strong><strong>ation</strong><br />
M<strong>Metallux</strong>x<br />
memb brane pootentiommeter<br />
—<br />
<strong>now</strong> <strong>also</strong> <strong>lin</strong>earizedd<br />
Fig. 3: Linnearized<br />
rotaryy<br />
and <strong>lin</strong>ear mmembrane<br />
poteentiometers.<br />
Typicall<br />
technicall<br />
data of thhe<br />
<strong>lin</strong>earizeed<br />
membra ane potenttiometers:<br />
Stroke llengths<br />
00...50<br />
to 0.. .500 mm<br />
Resistance<br />
value 2 ... . 20 kOOhm,<br />
depending<br />
on sstroke<br />
lenggth<br />
Resistance<br />
tolerance<br />
+ +/- 20%<br />
Indepeendent<br />
<strong>lin</strong>eearity:<br />
< +/- 0.4% wwith<br />
stroke e lengths < 250 mm<br />
< +/- 0.3% wwith<br />
stroke e lengths >2250<br />
mm<br />
Repeattability<br />
ttyp.<br />
0.05 mmm<br />
Hystereesis<br />
ttyp.<br />
0.25 mmm<br />
Sensor width<br />
221.3<br />
+/- 0.55<br />
mm<br />
Sensor thickness<br />
11.7<br />
+/- 0.2 mmm<br />
Temperature<br />
rangge<br />
--25<br />
... 105 ° °C<br />
--40<br />
... 125 ° °C (with lim mited data) )<br />
Servicee<br />
life<br />
225<br />
million ccycles<br />
Adjustmment<br />
speedd<br />
1 m/<strong>se</strong>c<br />
Protecttion<br />
Class<br />
IP67<br />
with thhe<br />
exception<br />
of plug and connnector<br />
With the<br />
<strong>lin</strong>earized<br />
MetaPott<br />
membranne<br />
potentio ometer a mmultitude<br />
oof<br />
new<br />
applica<strong>ation</strong>s<br />
opens<br />
up. Simiilar<br />
to the ffoil-to-foil<br />
designs d or cclassic<br />
wipper<br />
________________________________________________________________________________________<br />
___________________ ___________________ ___________________ ______________<br />
<strong>Metallux</strong> A<strong>AG</strong><br />
Robert-Boosch-Str.<br />
29<br />
D-71397 Leutenbach<br />
Tel<br />
Fax<br />
+49 (0) 7195/5 5980-0<br />
+49 (0) 7195/5 5980-300<br />
info@metallux.de<br />
www.metal llux.de
<strong>Press</strong>s<br />
<strong>Releas</strong><strong>se</strong><br />
<strong>Next</strong>-<strong>genera</strong><strong>ation</strong><br />
M<strong>Metallux</strong>x<br />
memb brane pootentiommeter<br />
—<br />
<strong>now</strong> <strong>also</strong> <strong>lin</strong>earizedd<br />
potentiiometers,<br />
tthere<br />
are mmany<br />
applic<strong>ation</strong>s<br />
in the vehicle<br />
<strong>se</strong>ctor, mmedical<br />
engineeering,<br />
avia<strong>ation</strong><br />
and sspace<br />
techhnology<br />
or r robotics.<br />
Here a number oof<br />
typical eexamples:<br />
‐<br />
‐<br />
‐<br />
‐<br />
‐<br />
‐<br />
‐<br />
Position deetection<br />
in vehicle orr<br />
airplane <strong>se</strong>ats s<br />
Positioningg<br />
of cy<strong>lin</strong>deers<br />
or actuaators<br />
Electrical, pneumaticc<br />
and hydraulic<br />
actu uators<br />
Positioningg<br />
of robot aarms<br />
Positioningg<br />
of solar panels<br />
Monitoringg<br />
of pas<strong>se</strong>nnger<br />
vehicle<br />
positioni ing systems<br />
such as for<br />
mirrors,<br />
wwindow<br />
liftters<br />
or folding<br />
tops off<br />
cabriolets s<br />
Position moonitoring<br />
oof<br />
operating<br />
tables in n medical eengineering<br />
About M<strong>Metallux</strong>:<br />
The Metaallux<br />
<strong>AG</strong> is a high-performmance<br />
manufacturer<br />
of electronic e commponents<br />
ussing<br />
thick film m<br />
technoloogies.<br />
The Swwabian<br />
high-tech<br />
companny<br />
has a broa ad <strong>se</strong>rvice sppectrum<br />
and,<br />
in addition to the<br />
standardd<br />
palette of ppressure,<br />
path<br />
and angle, , membrane <strong>se</strong>nsors, high h voltage andd<br />
power resis stors, <strong>also</strong><br />
offers cuustomer-speccific<br />
completee<br />
solutions upp<br />
to and inclu uding the maanufacture<br />
oof<br />
potentiome eters and<br />
joysticks. . K<strong>now</strong>n for itts<br />
customer-oorientedness,<br />
with fitting id deas and solutions,<br />
the coompany<br />
gua arantees<br />
satisfied customers. Innnovative<br />
prooducts,<br />
a muultitude<br />
of pa atents awarded<br />
and yearrs<br />
of experien nce—for<br />
over 25 yyears<br />
numeroous<br />
well-k<strong>now</strong>wn<br />
customerss<br />
from the <strong>se</strong>ctors<br />
of the aautomobile<br />
inndustry,<br />
electrosttatics,<br />
mediccal<br />
and industrial<br />
engineeering<br />
as well as a <strong>se</strong>nsor technology<br />
have<br />
relied on us. u Since<br />
Novembber<br />
2011, Mettallux<br />
<strong>AG</strong> hass<br />
been resideent<br />
in Leutenb bach-Nellmeersbach<br />
nearr<br />
Stuttgart.<br />
Author<br />
<strong>Metallux</strong>x<br />
<strong>AG</strong><br />
Andreas Karaus<br />
Technicaal<br />
Management<br />
andreas.karaus@mettallux.de<br />
<strong>Metallux</strong>x<br />
<strong>AG</strong><br />
Robert-BBosch-Straße<br />
29<br />
71397 Leeutenbach-Nellmersbach<br />
Tel. +49 ( (0)7195/5980--0<br />
Fax +49 ( (0)7195/59800-300<br />
www.meetallux.de<br />
info@meetallux.de<br />
________________________________________________________________________________________<br />
___________________ ___________________ ___________________ ______________<br />
<strong>Metallux</strong> A<strong>AG</strong><br />
Robert-Boosch-Str.<br />
29<br />
D-71397 Leutenbach<br />
Tel<br />
Fax<br />
+49 (0) 7195/5 5980-0<br />
+49 (0) 7195/5 5980-300<br />
info@metallux.de<br />
www.metal llux.de
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