optical comparator

optical comparator

[′äp·tə·kəl kəm′par·əd·ər]
(engineering)
Any comparator in which movement of a measuring plunger tilts a small mirror which reflects light in an optical system. Also known as visual comparator.
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Of this preparation a tolerably abundant plateful was apportioned to each pupil.
Linton mixed a tumbler of negus, and Isabella emptied a plateful of cakes into her lap, and Edgar stood gaping at a distance.
If I had permitted him, I am satisfied that Traddles would have made a perfect savage of himself, and eaten a plateful of raw meat, to express enjoyment of the repast; but I would hear of no such immolation on the altar of friendship, and we had a course of bacon instead; there happening, by good fortune, to be cold bacon in the larder.
He had hastily helped us to the soup, and was dispatching an ample plateful with portentous speed.
He held his head on one side and screwed up his mouth, as he nudged Bartle Massey, and watched half-witted Tom Tholer, otherwise known as "Tom Saft," receiving his second plateful of beef.
Having cleared a plateful, I became so far humanized as to intimate to Mr.
If I want to write any thing very pathetic--I mean, if I want to try to write anything very pathetic--I eat a large plateful of hot buttered muffins about an hour beforehand, and then by the time I sit down to my work a feeling of unutterable melancholy has come over me.
The rays fell from a thick green funnel in a plateful of strong light upon a table deep in books.
He found them, when he came into sight of them again, seated with their backs against the shed, plates on knee, and a tin of corned beef and a plateful of biscuits between them.
Seeing this the Emperor had a plateful of biscuits brought him and began throwing them down from the balcony.
They have such excellent biscuits here," she said, contemplating a plateful.
Shall I spend it here where there is a cosy fire, a plateful of delicious russets, three purring and harmonious cats, and two impeccable china dogs with green noses?

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