Piezoelectric-based self-powered electronic adjustable impulse switches

Jahangir Rastegar; Philip Kwok

doi:10.1117/12.2296344

27 March 2018 Piezoelectric-based self-powered electronic adjustable impulse switches

Jahangir Rastegar, Philip Kwok

Proceedings Volume 10602, Smart Structures and NDE for Industry 4.0; 106020O (2018) https://doi.org/10.1117/12.2296344
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2018, Denver, Colorado, United States

Abstract

Novel piezoelectric-based self-powered impulse detecting switches are presented. The switches are designed to detect shock loading events resulting in acceleration or deceleration above prescribed levels and durations. The prescribed acceleration level and duration thresholds are adjustable. They are provided with false trigger protection logic. The impulse switches are provided with electronic and logic circuitry to detect prescribed impulse events and reject events such as high amplitude but short duration shocks, and transportation vibration and similar low amplitude and relatively long duration events. They can be mounted directly onto electronics circuit boards, thereby significantly simplifying the electrical and electronic circuitry, simplifying the assembly process and total cost, significantly reducing the occupied volume, and in some applications eliminating the need for physical wiring to and from the impulse switches. The design of prototypes and testing under realistic conditions are presented.

Conference Presentation

Citation Download Citation

Jahangir Rastegar and Philip Kwok "Piezoelectric-based self-powered electronic adjustable impulse switches", Proc. SPIE 10602, Smart Structures and NDE for Industry 4.0, 106020O (27 March 2018); https://doi.org/10.1117/12.2296344

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