8/19/2019 Envelope Curve & Mapping

http://slidepdf.com/reader/full/envelope-curve-mapping 1/4

\2/12/2073

Creation of Envelope Curve

Amplification and logarithmic calculus of t]1e received signalsRectification of the emitted pulse and the receiv€d signalsGeneration of the Envelope Curve

Distance evaluation

8/19/2019 Envelope Curve & Mapping

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\2/72/2073

Process Tank <-> Envelope Curve

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Different Ways to Display the Envelope Curve

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8/19/2019 Envelope Curve & Mapping

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12/12/201,3

Additional Curves I - Overview

AddiUonal Curves II - Map I

r Map has to be recorded \i/ith a completely empty tank

r With the map, all static tank obstacles are getting faded out

I onlythe actual level signal reaches over the map, aI otherel}loes are not qettinq evaluared

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t2/72/2013

Addiuona1 Curves II - Map II

. Task ofthe Map:) tolerance theshold l€vel signal detection) sLppression oIs.ad, rnrenerence siqnal\

Factory map:> suplression of fate eclo detection

caused by reflectiols ilstde the

> recorded in the fetory) bas to be .€coded aSain aJter

) su@Essi@ oi lalse echo delecti@caured by rcfl€cuo6 ar stadc

-> has to be r€coxled aner btual

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Any questions?

Endresi+rauser l:J

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