photometer, device that measures the strength of electromagnetic radiation in the range from ultraviolet to infrared and including the visible spectrum. Such devices are generally transducers that convert an electric current into a mechanical indication—e.g., a pointer moving across a dial.

What is a photometer in clinical chemistry?

Photometry is the measurement of light absorbed in the ultraviolet (UV) to visible (VIS) to infra-red (IR) range. This measurement is used to determine the amount of an analyte in a solution or liquid.

Is a photometer the same as a light meter?

A light meter, a specific type of photometer, is used to measure the amount of light present.