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Title: Multiple-stage integrating accelerometer

Abstract

An accelerometer assembly is provided for use in activating a switch in response to multiple acceleration pulses in series. The accelerometer includes a housing forming a chamber. An inertial mass or piston is slidably disposed in the chamber and spring biased toward a first or reset position. A damping system is also provided to damp piston movement in response to first and subsequent acceleration pulses. Additionally, a cam, including a Z-shaped slot, and cooperating follower pin slidably received therein are mounted to the piston and the housing. The middle or cross-over leg of the Z-shaped slot cooperates with the follower pin to block or limit piston movement and prevent switch activation in response to a lone acceleration pulse. The switch of the assembly is only activated after two or more separate acceleration pulses are sensed and the piston reaches the end of the chamber opposite the reset position.

Inventors:
Issue Date:
OSTI Identifier:
6011901
Application Number:
ON: TI85006505
Assignee:
Dept. of Energy SNL; EDB-85-039466
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; ACCELEROMETERS; DESIGN; PISTONS; PULSES; SWITCHES; ELECTRICAL EQUIPMENT; EQUIPMENT; MEASURING INSTRUMENTS; 440300* - Miscellaneous Instruments- (-1989)

Citation Formats

Devaney, H.F. Multiple-stage integrating accelerometer. United States: N. p., 1984. Web.
Devaney, H.F. Multiple-stage integrating accelerometer. United States.
Devaney, H.F. Wed . "Multiple-stage integrating accelerometer". United States.
@article{osti_6011901,
title = {Multiple-stage integrating accelerometer},
author = {Devaney, H.F.},
abstractNote = {An accelerometer assembly is provided for use in activating a switch in response to multiple acceleration pulses in series. The accelerometer includes a housing forming a chamber. An inertial mass or piston is slidably disposed in the chamber and spring biased toward a first or reset position. A damping system is also provided to damp piston movement in response to first and subsequent acceleration pulses. Additionally, a cam, including a Z-shaped slot, and cooperating follower pin slidably received therein are mounted to the piston and the housing. The middle or cross-over leg of the Z-shaped slot cooperates with the follower pin to block or limit piston movement and prevent switch activation in response to a lone acceleration pulse. The switch of the assembly is only activated after two or more separate acceleration pulses are sensed and the piston reaches the end of the chamber opposite the reset position.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {6}
}