Mechanical Water Sensor

Abstract

A water sensor includes a housing that has at least one inlet port formed therein for allowing water to pass there through when submerged in water. A drive piston is mounted in the housing for sliding engagement therein. A water-activated driver is coupled to the drive piston and is in communication with the inlet port(s). The water-activated driver is inert in air and reactive with water to exert pressure on the drive piston and so that the drive piston moves in the housing. A movable indicator is mounted relative to the housing and is positioned to be responsive to movement of the drive piston. The movable indicator moves from a first position to a second position in response to movement of the drive piston.

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Document Details

Document Type
Technical Report
Publication Date
Dec 08, 1998
Accession Number
ADD019157

Entities

People

  • Keith B. Lewis
  • Matthew J. Sanford

Organizations

  • United States Department of the Navy

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Air Pressure
  • Citric Acid
  • Explosive Devices
  • Explosives
  • Failure Mode And Effect Analysis
  • Fault Tree Analysis
  • Fluids
  • Gases
  • Hydraulic Fluids
  • Indicators
  • Inventions
  • Materials
  • Patents
  • Pins
  • Shallow Water
  • Shear Pins
  • Water

Readers

  • Combustion and Flow Dynamics.
  • Logistics and Supply Chain Management.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).