Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Gravimetry: Overview01:05

Gravimetry: Overview

15.1K
Gravimetric analysis is a quantitative method where the analyte is isolated and weighed directly or after conversion into a substance of known composition. Gravimetric analysis can be classified as precipitation, electrogravimetry, volatilization, and particulate gravimetry, based on the method used to isolate the analyte.
In precipitation gravimetry, the analyte is converted into a precipitate and weighed. For example, the silver content in a sample can be estimated by precipitating and...
15.1K
Measuring Acceleration Due to Gravity01:12

Measuring Acceleration Due to Gravity

1.4K
Consider a coffee mug hanging on a hook in a pantry. If the mug gets knocked, it oscillates back and forth like a pendulum until the oscillations die out.
A simple pendulum can be described as a point mass and a string. Meanwhile, a physical pendulum is any object whose oscillations are similar to a simple pendulum, but cannot be modeled as a point mass on a string because its mass is distributed over a larger area. The behavior of a physical pendulum can be modeled using the principles of...
1.4K
Atomic Nuclei: Larmor Precession Frequency01:11

Atomic Nuclei: Larmor Precession Frequency

3.8K
The earth's gravitational field produces a 'twisting force' perpendicular to the angular momentum of a spinning mass (such as a spinning top) that causes the mass to 'wobble' around the gravitational field axis in a phenomenon called precession. Similarly, the magnetic moment (μ) of a spinning nucleus precesses due to an external magnetic field directed along the z-axis. The precession of the magnetic moment vector about the magnetic field is called Larmor precession,...
3.8K
Variation in Acceleration due to Gravity near the Earth's Surface01:20

Variation in Acceleration due to Gravity near the Earth's Surface

3.0K
An object's apparent weight is its weight measured by a spring balance at its location. It is different from its true weight, the force with which the Earth pulls it, because of the Earth's rotation. Mathematically, an object's apparent weight equals its true weight minus the centripetal force that keeps it in a circular motion along with the Earth's surface every 24 hours.
The difference between the true and apparent weights is proportional to the square of the Earth's...
3.0K
Precipitation Gravimetry01:03

Precipitation Gravimetry

16.2K
Precipitation gravimetry is based on converting an analyte into a sparingly soluble precipitate, which is separated by filtration and weighed. An ideal precipitate should be pure, insoluble, of known composition, and easily filtered from the reaction mixture.
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
16.2K
Gyroscope: Precession01:24

Gyroscope: Precession

6.1K
Precession can be demonstrated effectively through a spinning top. If a spinning top is placed on a flat surface near the surface of the Earth at a vertical angle and is not spinning, it will fall over due to the force of gravity producing a torque acting on its center of mass. However, if the top is spinning on its axis, it precesses about the vertical direction, rather than topple over due to this torque. Precessional motion is a combination of a steady circular motion of the axis and the...
6.1K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Clade 2.3.4.4b H5N1 HPAIV from Migratory Birds in Beidaihe Wetland, North China.

Viruses·2026
Same author

Programmable Hydrodynamic Invisibility Enabled by Machine-Learning-Guided Metamaterials.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

A QuantiFERON<sup>®</sup>-TB Gold Plus-Based Model for Predicting Latent Tuberculosis Infection in Patients with Diabetes.

Infection and drug resistance·2026
Same author

Dual-Zero-Scattering in Diffusive Transport.

Physical review letters·2026
Same author

Bridging the Microbial and Mineral Carbon Pumps: Biochar for Synergistic Soil Carbon Sequestration.

Environmental science & technology·2026
Same author

Impact of a Pharmacy-Driven (1,3)-β-D-Glucan Algorithm on Micafungin Duration of Therapy in the ICU.

The Journal of pharmacy technology : jPT : official publication of the Association of Pharmacy Technicians·2026
Same journal

RETRACTED: Zhang et al. A Novel Framework for Reconstruction and Imaging of Target Scattering Centers via Wide-Angle Incidence in Radar Networks. <i>Sensors</i> 2025, <i>25</i>, 6802.

Sensors (Basel, Switzerland)·2026
Same journal

Enhancing Unsupervised Multi-Source Domain Adaptation for Person Re-Identification via Mixture of Experts and Graph-Based Relation.

Sensors (Basel, Switzerland)·2026
Same journal

Development of an Instrumented Glove for Palmar Pressure Assessment in Kayakers.

Sensors (Basel, Switzerland)·2026
Same journal

Development and Experimental Validation of an Autonomous IoT-Based Monitoring System for Real-Time Water Quality Assessment in the Amazon River.

Sensors (Basel, Switzerland)·2026
Same journal

Semi-Supervised Adversarial Learning Framework for Controller Area Network Bus Intrusion Detection.

Sensors (Basel, Switzerland)·2026
Same journal

Smart Optimization Method for Safety Signs in Innovative Manufacturing Environments Integrating Industrial Field IoT Sensors and Knowledge Graphs.

Sensors (Basel, Switzerland)·2026
See all related articles

Related Experiment Video

Updated: Apr 15, 2026

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior
10:52

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Published on: April 13, 2016

9.3K

Vibration Compensation for a High-Precision Atomic Gravimeter Based on an Improved Whale Optimization Algorithm.

Xingyue Guo1, Yiyang Zhang2,3, Zhennan Liu4

  • 1Key Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang Province, College of Information Engineering, China Jiliang University, Hangzhou 310018, China.

Sensors (Basel, Switzerland)
|April 14, 2026
PubMed
Summary
This summary is machine-generated.

We developed an improved whale optimization algorithm (IWOA) to enhance cold-atom gravimeter sensitivity by overcoming ground vibrations. This method significantly reduces measurement uncertainty and improves gravity sensitivity.

Keywords:
Pearson correlationcold-atom gravimetergravity measurement sensitivityvibration compensationwhale optimization algorithm

More Related Videos

Picometer-Precision Atomic Position Tracking through Electron Microscopy
15:04

Picometer-Precision Atomic Position Tracking through Electron Microscopy

Published on: July 3, 2021

8.5K
Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing
08:54

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing

Published on: February 13, 2018

9.2K

Related Experiment Videos

Last Updated: Apr 15, 2026

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior
10:52

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Published on: April 13, 2016

9.3K
Picometer-Precision Atomic Position Tracking through Electron Microscopy
15:04

Picometer-Precision Atomic Position Tracking through Electron Microscopy

Published on: July 3, 2021

8.5K
Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing
08:54

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing

Published on: February 13, 2018

9.2K

Area of Science:

  • Physics
  • Metrology
  • Quantum Technology

Background:

  • Cold-atom gravimeters measure gravity but are limited by ground vibrations.
  • Current compensation algorithms lack accuracy and efficiency, often getting stuck in local optima.

Purpose of the Study:

  • To introduce an improved whale optimization algorithm (IWOA) for vibration compensation in cold-atom gravimeters.
  • To enhance the sensitivity and accuracy of gravity measurements by addressing limitations of existing algorithms.

Main Methods:

  • Implemented IWOA with Logistic-LHS chaotic initialization, adaptive adjustment, and Gaussian mutation.
  • Validated the algorithm through simulations and experimental testing on the NIM-AGRb-1 cold-atom gravimeter.
  • Assessed improvements in phase parameter uncertainty and gravity sensitivity.

Main Results:

  • IWOA reduced phase parameter uncertainty by 66%.
  • Achieved a maximum Pearson correlation of 0.98 between atomic transition probability and calculated phase.
  • Improved gravity sensitivity to 47 μGal/Hz at an evolution time of 80 ms.

Conclusions:

  • The proposed IWOA offers superior search efficiency and sensitivity for cold-atom gravimeters.
  • This algorithm effectively compensates for ground vibrations, leading to more precise gravity measurements.
  • IWOA represents a significant advancement in vibration compensation for sensitive scientific instruments.