What kind of sensors and other stuff do I need to achieve this?

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Anonymous
2016-02-10 05:59:17 Post No. 944475
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Anonymous 2016-02-10 05:59:17 Post No. 944475 [Report]

What kind of sensors and other stuff do I need to achieve this?

Let's say those red and blue boxes are steel bars.
Red bar is fixed, blue bar slides up and down.
I need to attach a measurement to them so I know how much blue bar moves relative to the red bar.

I'm looking through industrial stuff on rs-online but I have no idea what do I need.

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Anonymous 2016-02-10 06:10:13 Post No.944477
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Anonymous 2016-02-10 06:10:13 Post No.944477 [Report]

A rotary encoder would do the trick.

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Anonymous 2016-02-10 06:51:03 Post No.944489
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Anonymous 2016-02-10 06:51:03 Post No.944489 [Report]

Like I told you on/g/, faggot, google for a linear motion encoder.

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Anonymous 2016-02-10 08:14:49 Post No.944510
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Anonymous 2016-02-10 08:14:49 Post No.944510 [Report]

a laser mouse would work.

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Anonymous 2016-02-10 08:23:41 Post No.944514
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Anonymous 2016-02-10 08:23:41 Post No.944514 [Report]

>>944510
As would a set of digital callipers. Which sounds like pretty much what he's trying to build.

>You're reinventing the wheel, OP.

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Anonymous 2016-02-13 02:29:37 Post No.945764
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Anonymous 2016-02-13 02:29:37 Post No.945764 [Report]

>>944475
Capacitive linear encoder.

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Anonymous 2016-02-13 02:57:37 Post No.945770
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Anonymous 2016-02-13 02:57:37 Post No.945770 [Report]

>>944514
This a pair of calipers rigged or a digital read out track.

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Anonymous 2016-02-13 06:31:54 Post No.945853
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Anonymous 2016-02-13 06:31:54 Post No.945853 [Report]

LDVT, or maybe its LVDT

linear encoder
rotary encoder
wire encoder

>>944489
what he said
>>944514
>>945770
or this

ghetto DRO