Hamilton Sundstrand Corporation

Aaron T Gibson

Dean A Norem

Christopher J Courtney

Timothy Maver

Erin E Berry

Craig Friedberg

Dennis A Erickson

James C France

A burst disc system can include a plurality of burst discs serially arranged to successively rupture one at a time. Each burst disc can be configured to rupture at one or more set burst pressures. The system can include an indicator configured to allow a user to receive an indication that a last burst disc of the plurality of burst discs has ruptured.

Burst disc systems

A system for filtering mechanically-induced signal noise from a speed sensor may include a rotating member having at least one target group radially oriented about a center of the rotating member, an inductive speed sensor configured to sense the at least one target group, and two diode pairs each having a first diode and a second diode. The two diode pairs may be operatively connected to the inductive speed sensor and configured to receive a signal having the mechanically-induced signal noise. The system may also include a resistor connecting the diode pairs, a processor connected in parallel with the resistor and configured to receive a signal from the inductive speed sensor. The processor may be configured to receive a signal having reduced signal noise via the diode pairs, and determine a rotational speed of the rotating member based on the signal having reduced signal noise.

Diode noise filter for a speed sensor with mechanically-induced electrical noise

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Roscoe, IL, United States of America

Aaron T Gibson