RESETTABLE SENSOR ASSEMBLY AND SYSTEM

摘要

A resettable sensor assembly includes a housing having a longitudinal axis and defining a cavity therein. The assembly includes a divider disposed within the cavity and in contact with the housing, at least one electrical contact disposed within the cavity and extending through the divider, and a pin reversibly translatable within the cavity along the axis. The assembly includes at least one actuator element disposed within the cavity and abutting the housing. The element is configured for translating the pin along the axis between a first position wherein the pin contacts the electrical contact and a second position wherein the pin is spaced apart from the electrical contact. The actuator element is formed from a shape memory alloy that is transitionable between an austenite crystallographic phase and a martensite crystallographic phase in response to a thermal activation signal to thereby translate the pin between the first and second positions.

主权项

1. A resettable sensor assembly comprising:
a housing having a longitudinal axis and defining a cavity therein; a divider disposed within the cavity and in contact with the housing; at least one electrical contact disposed within the cavity and extending through the divider; a pin reversibly translatable within the cavity along the longitudinal axis; at least one actuator element disposed within the cavity and abutting the housing, wherein the actuator element is configured for translating the pin along the longitudinal axis between:
a first position in which the pin contacts the at least one electrical contact; anda second position in which the pin is spaced apart from the at least one electrical contact; wherein the at least one actuator element is formed from a shape memory alloy that is transitionable between an austenite crystallographic phase and a martensite crystallographic phase in response to a thermal activation signal to thereby translate the pin between the first position and the second position.