reflectometer noun. [ri:flɛk'tɒmɪtǝ] L19.
[formed as REFLECTIVE + -OMETER.]
Any of various instruments for measuring quantities associated with reflection, spec. (a) for determining the refractive index of a solid by measuring the critical angle for total reflection; (b) for determining reflectance by measuring the intensity of light reflected or scattered by a surface; (c) (time domain reflectometer) for locating discontinuities (e.g. faults in electrical cables) by detecting and measuring reflected pulses of energy.

■ reflectometry noun M20.

[TahlilGaran] English Dictionary ▲