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Related Concept Videos

IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations01:08

IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations

Identical bonds within a polyatomic group can stretch symmetrically (in-phase) or asymmetrically (out-of-phase). Similar to hydrogen bonding, these vibrations also influence the shape of the IR peak. Generally, asymmetric stretching frequencies are higher than symmetric stretching frequencies. For example, primary amines exhibit two distinct IR peaks between 3300–3500 cm−1 corresponding to the symmetric and asymmetric N-H stretching, while secondary amines exhibit a single stretching vibration...
Discrete Fourier Transform01:15

Discrete Fourier Transform

The Discrete Fourier Transform (DFT) is a fundamental tool in signal processing, extending the discrete-time Fourier transform by evaluating discrete signals at uniformly spaced frequency intervals. This transformation converts a finite sequence of time-domain samples into frequency components, each representing complex sinusoids ordered by frequency. The DFT translates these sequences into the frequency domain, effectively indicating the magnitude and phase of each frequency component present...

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Related Experiment Video

Updated: Jun 14, 2026

Live Cell Imaging of F-actin Dynamics via Fluorescent Speckle Microscopy (FSM)
19:16

Live Cell Imaging of F-actin Dynamics via Fluorescent Speckle Microscopy (FSM)

Published on: August 5, 2009

Vibration analysis by speckle techniques in real time.

H J Tiziani, J Klenk

    Applied Optics
    |March 24, 2010
    PubMed
    Summary

    This study demonstrates real-time vibration analysis using a bismuth silicon oxide crystal to record speckle patterns. This method bypasses the need for storage devices, offering a novel approach to vibration measurement.

    Area of Science:

    • Optics
    • Materials Science
    • Vibration Analysis

    Background:

    • Traditional vibration analysis often requires complex setups and data storage.
    • Real-time optical methods offer potential for faster and more efficient measurements.

    Purpose of the Study:

    • To investigate real-time vibration analysis using time-averaged speckle patterns.
    • To explore the use of bismuth silicon oxide crystals for optical vibration sensing.

    Main Methods:

    • Recording time-averaged speckle patterns in a bismuth silicon oxide crystal (Bi(12)SiO(20)).
    • Illuminating the crystal with a spherical wave to generate fringes in the Fraunhofer plane.
    • Utilizing specific wavelengths for information writing and readout to eliminate the need for storage devices.

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    Published on: October 20, 2016

    Real-Time Imaging of Bonding in 3D-Printed Layers
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    Real-Time Imaging of Bonding in 3D-Printed Layers

    Published on: September 1, 2023

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    Last Updated: Jun 14, 2026

    Live Cell Imaging of F-actin Dynamics via Fluorescent Speckle Microscopy (FSM)
    19:16

    Live Cell Imaging of F-actin Dynamics via Fluorescent Speckle Microscopy (FSM)

    Published on: August 5, 2009

    Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation
    09:05

    Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation

    Published on: October 20, 2016

    Real-Time Imaging of Bonding in 3D-Printed Layers
    04:36

    Real-Time Imaging of Bonding in 3D-Printed Layers

    Published on: September 1, 2023

    Main Results:

    • Spatially structured information from speckle patterns creates observable fringes.
    • Successful quasi-real-time vibration analysis was achieved.
    • Demonstrated a method that does not require a separate storage device.

    Conclusions:

    • Bismuth silicon oxide crystals are effective for real-time optical vibration analysis.
    • The proposed method offers a simplified and efficient approach compared to traditional techniques.
    • Further comparison with Doppler shift vibrometer measurements will be presented.