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Have you checked some proximity sensors or Hall effect sensors (in some w=
ay these two are overlapping with each other).  If the distance between h=
ome sensor and the rest ones are not too far, I would say it may work.
for thin resistive element, you may check some "capacitive potentiometer"=
, they are used to make sth like IPOD volume control, slide your finger a=
cross and the resistance changes, maybe there is some mechanism you can c=
onvert it to a bend sensor?=20



> Date: Thu, 2 Oct 2008 09:56:35 -0700> From: micro_eng2@yahoo.com> Subje=
ct: [EE] looking for a bend sensor> To: piclist@mit.edu> > It might be ea=
sier to describe the application, rather than trying to describe the sens=
or.> > Imagine a flexible device, like a gooseneck lamp that is flexed in=
to a specific position. A sensor, or array of sensors attached to it, whe=
re it can be determined relative to a 'home' sensor, how far the object i=
s out of wack from the home. So its a relative sensing application becaus=
e the home sensor may be at any initial angle, its the remaining sensors =
that are of real interest. Its really an alignment sensor, that will allo=
w feedback to an operator to adjust until it is in full alignment based o=
n that home reading.> > I was initially thinking about some sort of resis=
tive element that when it was straight, it would read a value and as it w=
as bent one way or another, the impedance would change thus giving a rela=
tive change. Feeding that into a PIC woul
 d then drive either an array of LEDs or maybe a LCD or serial output for=
 the feedback.> > Although this is an initial investigation that will dri=
ve building a prototype, if it works out they will want to move into a pr=
oduction so exotic and elaborate one-off type approaches will not be acce=
pted by them.> > Any thoughts? I've looked into force sensors, thought ab=
out accelometers but it needs to be thin and plyable enough to attach and=
 move as the object moves.> > > > -- > http://www.piclist.com PIC/SX FAQ =
& list archive> View/change your membership options at> http://mailman.mi=
t.edu/mailman/listinfo/piclist
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