Accession Number:

AD0909071

Title:

Fluidic Safe Release Sensor.

Descriptive Note:

Final rept. 8 Sep 71-15 Jul 72,

Corporate Author:

HONEYWELL INC MINNEAPOLIS MN GOVERNMENT AND AERONAUTICAL PRODUCTS DIV

Personal Author(s):

Report Date:

1972-11-01

Pagination or Media Count:

108.0

Abstract:

This report covers the design, fabrication and laboratory testing of a fluidic safe release sensor for use with the general purpose bomb and cluster bomb fuzes. The design goal was to show the feasibility of providing a sensor mechanization which will improve the safety in fuzes used in high-explosive, air-delivered munitions. Mechanization included a zero-g sensor, a fluidic diaphragm logic network, a lanyard activation mechanism, and captive and drop test instrumentation. The logic network switches the logic circuit to provide output to the activation mechanism. Power is provided by ram air from the bomb slipstream and must be above a minimum, equivalent to a velocity of 200 ftsec, in order for the activation mechanism to operate. One prototype unit was built and evaluated prior to building two flight test units for delivery. The sensor was subjected to temperature, altitude and vibration environments. Operational feasibility was shown over a supply pressure range of 2 inches to 20 inches Hg as compared to the design goal of 0.7 to 20 inches. By the addition of a pressure regulator, the low end of the supply pressure could be attained. The vibration environment caused unwanted zero-g switching. Vibration isolation mounts for the g-sensor greatly reduced this problem and in future units, with more available space for redesign, the vibration effect should be eliminated. Author

Subject Categories:

  • Fluidics and Fluerics
  • Ammunition and Explosives

Distribution Statement:

APPROVED FOR PUBLIC RELEASE