planometer


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pla·nom·e·ter

 (plə-nŏm′ĭ-tər, plā-)
n.
A flat metal plate for gauging the accuracy of a plane surface in precision metalworking. Also called surface plate.

pla·nom′e·try n.

planometer

(plæˈnɒmɪtə)
n
(Metallurgy) a flat metal plate used for directly testing the flatness of metal surfaces in accurate metalwork
planometric adj
ˌplanoˈmetrically adv
plaˈnometry n

planometer

a device for measuring the flatness of a machined surface. Also called surface plate.
See also: Instruments
References in periodicals archive ?
"I was the first to work it out, using a planometer, a clever little gadget invented by the Victorians but its not entirely accurate so you have to do everything about three time then use the average it to get nearest measurement possible."