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Related Concept Videos

Oscillations In An LC Circuit01:30

Oscillations In An LC Circuit

An idealized LC circuit of zero resistance can oscillate without any source of emf by shifting the energy stored in the circuit between the electric and magnetic fields. In such an LC circuit, if the capacitor contains a charge q before the switch is closed, then all the energy of the circuit is initially stored in the electric field of the capacitor. This energy is given by
Design Example: Underdamped Parallel RLC Circuit01:17

Design Example: Underdamped Parallel RLC Circuit

Consider designing an oscillator circuit, a crucial component in various electronic devices and systems. The objective is to create an oscillator circuit with specific characteristics: a damped natural frequency of 4 kHz and a damping factor of 4 radians per second. To accomplish this, a parallel RLC circuit is employed, known for its ability to sustain oscillations at a resonant frequency. In this case, the damping factor is pivotal in achieving the desired performance.
Starting with a fixed...
RLC Circuit as a Damped Oscillator01:30

RLC Circuit as a Damped Oscillator

An RLC circuit combines a resistor, inductor, and capacitor, connected in a series or parallel combination.
Consider a series RLC circuit. Here, the presence of resistance in the circuit leads to energy loss due to joule heating in the resistance. Therefore, the total electromagnetic energy in the circuit is no longer constant and decreases with time. Since the magnitude of charge, current, and potential difference continuously decreases, their oscillations are said to be damped. This is...
Characteristics of Series Resonant Circuit01:24

Characteristics of Series Resonant Circuit

Series resonance occurs in a circuit containing inductive (L), capacitive (C), and resistive (R) elements connected sequentially. At the resonance frequency, the inductive and capacitive reactances are equal in magnitude but opposite in sign, effectively canceling each other. This causes the circuit's impedance is minimal, primarily determined by the resistance R. The resonant frequency of an RLC circuit is defined as:

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Related Experiment Video

Updated: Jul 7, 2026

Isolation of Quartz Grains for Optically Stimulated Luminescence (OSL) Dating of Quaternary Sediments for Paleoenvironmental Research
09:41

Isolation of Quartz Grains for Optically Stimulated Luminescence (OSL) Dating of Quaternary Sediments for Paleoenvironmental Research

Published on: August 2, 2021

An observation on quartz resonator aging.

J A Kosinski1

  • 1US Army LABCOM ETDL, Fort Monmouth, NJ.

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
|January 1, 1992
PubMed
Summary

Aging and acceleration sensitivity in quartz resonators may stem from common mounting stresses. Further research is needed to identify the exact cause of these trends in bulk-acoustic-wave resonators.

Area of Science:

  • Physics
  • Materials Science
  • Electrical Engineering

Background:

  • Quartz resonators exhibit aging and acceleration sensitivity.
  • Certain fabrication lots show trends suggesting a common underlying mechanism.
  • Mounting structure stresses are a potential cause for these trends.

Purpose of the Study:

  • To investigate trends in aging and acceleration sensitivity of quartz resonators.
  • To examine correlations between resonator parameters and acceleration sensitivity.
  • To explore potential links between aging and acceleration sensitivities.

Main Methods:

  • Assembled a database of bulk-acoustic-wave (BAW) resonator parameters.
  • Analyzed resonator processing and electrical parameters for correlations with acceleration sensitivity.

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  • Examined correlations between resonator aging and acceleration sensitivities.

    • Main Results:

    • Observed trends in aging and acceleration sensitivity in specific fabrication lots.
    • Identified potential correlations between resonator parameters and acceleration sensitivity.
    • Aging magnitudes were typically in the 10^-10 per day range.

    Conclusions:

    • A common predominating mechanism, likely mounting-related stresses, may influence aging and acceleration sensitivity.
    • The precise cause of the observed trends remains unidentified.
    • Further investigation is required to confirm the role of mounting stresses.