reflectometer

[ ree-flek-tom-i-ter, ri- ]

noun

, Optics.

1. a device for measuring reflectance.

reflectometer

/ ˌriːflɛkˈtɒmɪtə /

noun

1. physics an instrument for measuring the ratio of the energy of a reflected wave to the incident wave in a system

Word History and Origins

Origin of reflectometer¹

First recorded in 1890–95; reflect + -o- + -meter

Example Sentences

The spacecraft will use near-infrared lasers to shine light into its dark polar regions while an onboard reflectometer will measure surface texture and composition.

From Scientific American

This instrument is an improved form of the total reflectometer, in which the refractive power of a given substance is determined by the method of total reflection.

From Project Gutenberg