Submarine-To-Aircraft Signalling With A Submergible Transmitter Of High-Intensity, Short-Duration Light Pulses.
Abstract
A submergible transmitter has been designed and built for automatically generating repetitive high-intensity, short-duration light pulses. When installed on the deck of a submarine for underwater signalling tests, it is easily operated by means of a control panel within the submarine. This transmitter has been employed during underwater-to-air signalling exercises at sea for collecting range data. Most of the components are mounted inside a 200-pound steel cylinder with a 9-3/4-inch-diameter window at one end. Covering the window, through which the light-pulse beam passes, is a 1-inch-thick disk of Pyrex glass which limits the maximum depth of submergence in water to 150 feet. Immediately beneath the window is a flashtube mounted coaxially in a parabolic reflector so that a light-pulse beam having a maximum peak luminous intensity of 18 million candelas is produced.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 15, 1959
- Accession Number
- ADC009287
Entities
People
- G. L. Stamm
Organizations
- United States Naval Research Laboratory