You are looking at 1-1 of 1 entries  for:

  • All: photoelectric photometer x
  • Medicine and health x
clear all



photoelectric photometer

An instrument for measuring the brightness of a star by means of the electric current produced when its light falls on a light-sensitive surface (the photoelectric effect). The light ...


photometer n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:

... n . An instrument for measuring luminous intensity , older types usually involving visual comparisons of the illumination from a specified light source with that from a standard comparison source, and more modern types using photoelectric cells that generate electrical signals in response to light. photometry n . The measurement of luminous intensity , luminous flux , and related phenomena, or the branch of physics concerned with these phenomena. [From Greek phos , photos light + metron a...