Multiple-stage integrating accelerometer

Patent · Wed Jan 01 00:00:00 EST 1986

OSTI ID:865783

Devaney, Howard F ^[1]

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1. Cedar Crest, NM

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.

• Research Organization: AT&T
• DOE Contract Number: AC04-76DP00789
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4574168
• OSTI ID: 865783
• Country of Publication: United States
• Language: English

Related Subjects

multiple-stage
integrating
accelerometer
assembly
provided
activating
switch
response
multiple
acceleration
pulses
series
housing
forming
chamber
inertial
mass
piston
slidably
disposed
spring
biased
reset
position
damping
damp
movement
subsequent
additionally
including
z-shaped
slot
cooperating
follower
received
therein
mounted
middle
cross-over
leg
cooperates
block
limit
prevent
activation
pulse
activated
separate
sensed
reaches
opposite
slidably received
switch activation
received therein
spring biased
acceleration pulse
/200/102/