Definition - What does Hydroscopy mean?

Hydroscopy refers to looking underwater and typically involves an instrument called a hydroscope, an optical device used for viewing objects far below the surface of water.

The word hydroscope is used to mean any of several instruments related to water. This could, for example, be a long tube fitted with various lenses.

Corrosionpedia explains Hydroscopy

A hydroscope is one of several instruments that combines electronic or optical analysis of physical properties with water. In ancient times, this meant a kind of nautical telescope that was aimed downward, for observation and projection of underwater images to a screen.

One type of hydroscope is a benchtop piece of laboratory equipment that measures the presence and qualities of many liquid variables, including:

  • Emulsification
  • Phasing of multiple liquids
  • Saturation points
  • Viscosities
  • Mixing effects of different inks

This equipment might resemble a box with sensors and an electronic readout interface.

Applications of hydroscopy typically include emulsification tests for ink/water balances for printing presses. Generally, hydroscope designs may serve to make clear observations of a fluid medium; others may also serve to detect the presence of water in air.

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