Concept

Quartz clock

Related publications (81)

Integrating sphere for the optical analysis of luminescent materials

An integrating sphere for measuring quantum yield comprises a sample holder, for example a capillary (7) adapted to be placed in a quartz tube (12) comprised in the sphere, an inlet opening for introducing an excitation beam (10), and an outlet opening for ...

2009

Nanogap MEM resonators on SOI

Nicoleta-Diana Ciressan

Today's consumer electronics based on a large variety of time-keeping and frequency reference applications is based on quartz-crystal oscillators, because of their excellent performances in terms of quality factor, thermal and frequency stability. However, ...

EPFL2009

Self-sustained low power oscillator based on vibrating body field effect transistor

Mihai Adrian Ionescu, Daniel Grogg, Suat Ayoz

The operation of a vibrating body field effect transistor (VB-FET) near pull-in is exploited to experimentally demonstrate a self-oscillating device. The positive feedback mechanism is triggered at the onset of inversion in a depleted VB-FET channel, near ...

2009

Self-sustained Low Power Oscillator Based on Vibrating Body Field Effect Transistor

Mihai Adrian Ionescu, Daniel Grogg

IEEE Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

A simple and accurate method for calibrating the oscillation amplitude of tuning-fork based AFM sensors

Majed Chergui, Andrea Callegari, Jinquan Liu

We have developed a simple and accurate method for calibrating the amplitude of vibration of quartz tuning fork sensors commonly used in at. force- and near field optical-microscopy. Unlike interferometric methods, which require a complex optical setup, th ...

2008

Analysis and modeling of electrostatic discharge in a tactile glass featured watch

Yves Perriard, Paolo Germano, Lionel Paratte, Daniele Demarco

Electrostatic discharge in quartz watches is becoming more and more important due to the use of plastic materials and tactile sensors. The discharge can lead to different type of dysfunction such as a simple reset, a latch-up, or the destruction of the ele ...

2007

Bio-inspired cellular machines

Fabien Vannel

Information technology has only been around for about fifty years. Although the beginnings of automatic calculation date from as early as the 17th century (W. Schickard built the first mechanical calculator in 1623), it took the invention of the transistor ...

EPFL2007

A Power-Efficient Clock and Data Recovery Circuit in 0.18-um CMOS Technology for Multi-Channel Short-Haul Optical Data Communication

Seyed Armin Tajalli, Yusuf Leblebici, Paul Victor Georges Muller

This paper studies the specifications of gated-oscillator-based clock and data recovery circuits (GO CDRs) designed for short haul optical data communication systems. Jitter tolerance (JTOL) and frequency tolerance (FTOL) are analyzed and modeled as two ma ...

2007

Development of a scanning near-field microscope and investigations of solid C60 luminescence

Jinquan Liu

This thesis presents the development of a scattering scanning near-field microscope (s-SNOM) and investigations on the photoluminescence study of solid C60. The first part concerns setting up of such a scattering SNOM where a tuning fork with an attached A ...

EPFL2007

Local Oxidation of Titanium Using Dynamic-Mode Tuning-Fork Probe with Microfabricated Silicon Cantilever

Nico de Rooij, Terunobu Akiyama, Kaspar Suter

We present a unique probe that is based on a quartz tuning fork and a microfabricated cantilever. The probe is self-actuating and self-sensing. The cantilever can be tailored to the needs of specific applications, in this case to feature an electrically co ...

2006

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