US Government As Represented by the Secretary of the Army

Little J Little

Joe S Hunter

Escar L Bailey

An accelerometer employing a magnetic fluid bearing which permits movement f a magnetic cylinder along a designated sensitive axis. The device is used to measure acceleration in such applications as inertial platform leveling, thrust termination, and inertial reference triads. The position of the magnetic cylinder (proof mass) is measured by a capacitance bridge network. The output of this capacitance network is a voltage which is proportional in direction and magnitude to the applied acceleration. This voltage will be amplified by an operational amplifier.

Magnetic fluid bearing accelerometer

A fluidic accelerometer employing a transverse-impact modulator for measug acceleration or velocity of a body along a specified axis of the accelerometer. This device uses two similar collinear power-input tubes directed toward each other. The axially opposing power jets from the tubes impact where the flow meets an air-bearing supported proofmass containing annular rings and produce symmetrical radial flow cones at the balance point. A change in the position of the proofmass causes the balance point to move which causes the radial flow cones to become asymmetrical and a net pressure difference is developed in the output receivers.

Fluidic transverse-impact modulator accelerometer

A fluidic accelerometer employing a direct-impact modulator for measuring celeration or velocity of a body along a specified axis of the accelerometer. This device uses two similar collinear power-input tubes directed toward each other. The axially opposing power jets from the tubes impact where the flow meets an air-bearing supported proofmass containing annular rings and produce symmetrical radial flow cones at the balance point. A change in the position of the proofmass causes the balance point to move which causes the radial flow cones to become asymmetrical and a net pressure difference is developed in the output receivers.

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Huntsville, AL, United States of America

Little J Little