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Glossary entry

English term or phrase:

Mirror type scale

English answer:

mirror scale

Added to glossary by Samir Sami
Feb 19, 2009 11:53
15 yrs ago
English term

Mirror type scale

English Tech/Engineering Electronics / Elect Eng Measurements
This is a workshop. An incomplete description of "Electrical measurements" and how to use Electrical measurement devices; General Guidance.

Sentence:
Recognition and avoidance of measurement errors and mirror type scale.
==
Classical English.
Responses
4 +4 mirror scale
4 mirroring an old error with a new error

Responses

+4
16 mins
Selected

mirror scale

A scale plate on an analogue instrument (moving-pointer instrument) with a mirror section next to the scale. Reading errors due to parallax (resulting from viewing the scale at an angle) can be avoided by viewing the scale such that the reflection of the pointer (in the mirror) is hidden by the pointer (this is only possible if the scale is viewed at perpendicularly).

See e.g.

The instrument provides accurate ...
180 x 180 - 12k - jpg
www.indiamart.com

Royalty-free stock Image.
380 x 241 - 45k - jpg
www.istockphoto.com

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Note added at 17 mins (2009-02-19 12:10:50 GMT)
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sorry, I meant to write 'this is only possible if the scale is viewed perpendicularly (at a right angle)'

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Note added at 18 mins (2009-02-19 12:12:08 GMT)
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And what your text means is 'using mirror-scale instruments'
Peer comment(s):
agree B D Finch : //you should have seen how my old electricity meter was installed!
1 hr
someone else who still remembers the days of peering at analogue instruments :-)
agree Bashiqa : I still do when working at home
1 hr
agree jccantrell : Exactly right.
3 hrs
agree Klaus Herrmann : I even remember the word Paralaxenfehler :)
3 hrs
Something went wrong...
4 KudoZ points awarded for this answer. Comment: "Thanks, Ken."
8 mins

mirroring an old error with a new error

Note from asker:
Many thanks, Gary.
Something went wrong...
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