Multiple-stage integrating accelerometer

Patent · Wed Jan 01 04:00:00 EST 1986

OSTI ID:865783

Devaney, Howard F ^[1]

---

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 CORP
• 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

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