Title: Nonlinearity induced synchronization enhancement in mechanical oscillators

Abstract

An autonomous oscillator synchronizes to an external harmonic force only when the forcing frequency lies within a certain interval, known as the synchronization range, around the oscillator's natural frequency. Under ordinary conditions, the width of the synchronization range decreases when the oscillation amplitude grows, which constrains synchronized motion of micro- and nano-mechanical resonators to narrow frequency and amplitude bounds. The present invention shows that nonlinearity in the oscillator can be exploited to manifest a regime where the synchronization range increases with an increasing oscillation amplitude. The present invention shows that nonlinearities in specific configurations of oscillator systems, as described herein, are the key determinants of the effect. The present invention presents a new configuration and operation regime that enhances the synchronization of micro- and nano-mechanical oscillators by capitalizing on their intrinsic nonlinear dynamics.

Inventors:

Czaplewski, David A.; Lopez, Omar; Guest, Jeffrey R.; Antonio, Dario; Arroyo, Sebastian I.; Zanette, Damian H.

Issue Date:

Tue May 08 00:00:00 EDT 2018

Research Org.:

Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1439588

Patent Number(s):

9966966

Application Number:

15/001,740

Assignee:

UChicago Argonne, LLC (Chicago, IL)

Patent Classifications (CPCs):

G - PHYSICS G01 - MEASURING G01C - MEASURING DISTANCES, LEVELS OR BEARINGS

H - ELECTRICITY H03 - BASIC ELECTRONIC CIRCUITRY H03B - GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER

Show more

G - PHYSICS G01 - MEASURING G01C - MEASURING DISTANCES, LEVELS OR BEARINGS

G01C19/5776 - Signal processing not specific to any of the devices covered by groups G01C19/5607 - G01C19/5719

H - ELECTRICITY H03 - BASIC ELECTRONIC CIRCUITRY H03B - GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER

H03B5/1215 - {the current source or degeneration circuit being in common to both transistors of the pair, e.g. a cross-coupled long-tailed pair}
H03B5/1218 - {the generator being of the balanced type}
H03B5/1228 - {the amplifier comprising one or more field effect transistors}
H03B5/124 - {the means comprising a voltage dependent capacitance}
H03B5/30 - with frequency-determining element being electromechanical resonator

H - ELECTRICITY H03 - BASIC ELECTRONIC CIRCUITRY H03K - PULSE TECHNIQUE

H03K2005/00286 - {Phase shifter, i.e. the delay between the output and input pulse is dependent on the frequency, and such that a phase difference is obtained independent of the frequency}
H03K5/003 - Changing the DC level
H03K5/13 - Arrangements having a single output and transforming input signals into pulses delivered at desired time intervals {

H - ELECTRICITY H03 - BASIC ELECTRONIC CIRCUITRY H03L - AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES

H03L5/00 - Automatic control of voltage, current, or power
H03L7/24 - using a reference signal directly applied to the generator

Show less

DOE Contract Number:  

AC02-06CH11357

Resource Type:

Patent

Resource Relation:

Patent File Date: 2016 Jan 20

Country of Publication:

United States

Language:

English

Subject:

42 ENGINEERING