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Proceedings Paper

The influence of vibrations on time reference signals generated using quartz crystals
Author(s): Andrei Drumea; Alina Marcu; Ioan Plotog
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Paper Abstract

32.768 kHz low frequency crystals are found in a large part of today’s embedded systems that use microcontrollers especially in battery supplied applications which need low power consumption1]. Their main role is to offer a stable time reference. There are situations in which time measurement is needed when the system works in a mechanically unstable environment (cars, industrial equipment). The paper presents the studies done on the behavior of 32.768 kHz quartz crystals that are part of embedded systems which operate in a vibrating environment, in terms of period and long-time jitter of the generated time reference signal. The investigations of this effect were done using a test bench especially designed for this purpose which can measure the presented parameters determined by controlled mechanical stimulus (waveform, amplitude and frequency of the vibrations).

Paper Details

Date Published: 14 December 2016
PDF: 6 pages
Proc. SPIE 10010, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VIII, 100101B (14 December 2016); doi: 10.1117/12.2245988
Show Author Affiliations
Andrei Drumea, Politehnica Univ. of Bucharest (Romania)
Alina Marcu, Politehnica Univ. of Bucharest (Romania)
Ioan Plotog, Politehnica Univ. of Bucharest (Romania)


Published in SPIE Proceedings Vol. 10010:
Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VIII
Marian Vladescu; Cornel T. Panait; Razvan Tamas; George Caruntu; Ionica Cristea, Editor(s)

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