n. 色辉计

[医] 液体比色器, 色调计

[ noun ]
a measuring instrument used in colorimetric analysis to determine the quantity of a substance from the color it yields with specific reagents
<noun.artifact>

Tintometer \Tint*om"e*ter\, n. [Tint + -meter.] (Physics)
An apparatus for the determination of colors by comparison
with arbitrary standards; a colorimeter.
[Webster 1913 Suppl.]