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

Sampling Methods: Overview01:06

Sampling Methods: Overview

A sample refers to a smaller subset representative of a larger population. In analytical chemistry, studying or analyzing an entire population is often impractical or impossible. Therefore, samples are used to draw inferences and generalize the whole population. The sampling method selects individuals or items from a population to create a sample. Standard sampling methods include random, judgemental, systematic, stratified, and cluster sampling. 
In analytical chemistry, the choice of sampling...
Aliasing01:18

Aliasing

Accurate signal sampling and reconstruction are crucial in various signal-processing applications. A time-domain signal's spectrum can be revealed using its Fourier transform. When this signal is sampled at a specific frequency, it results in multiple scaled replicas of the original spectrum in the frequency domain. The spacing of these replicas is determined by the sampling frequency.
If the sampling frequency is below the Nyquist rate, these replicas overlap, preventing the original signal...
Sampling Continuous Time Signal01:11

Sampling Continuous Time Signal

In signal processing, a continuous-time signal can be sampled using an impulse-train sampling technique, followed by the zero-order hold method. Impulse-train sampling involves the use of a periodic impulse train, which consists of a series of delta functions spaced at regular intervals determined by the sampling period. When a continuous-time signal is multiplied by this impulse train, it generates impulses with amplitudes corresponding to the signal's values at the sampling points.
In the...
Sampling Methods: Sample Types01:18

Sampling Methods: Sample Types

Sampling materials are classified into three main types: solid, liquid, and gas.
Solid samples include a variety of substances, such as sediments from water bodies, soil, metals, and biological tissues. Two standard methods for extracting sediments from water bodies are grab sampling and piston coring. Grab sampling involves using a device to collect a discrete sediment sample from the bottom of a water body with minimal disturbance. Grab samples do not always represent the entire area due to...
Sampling Plans01:23

Sampling Plans

Sampling is a crucial step in analytical chemistry, allowing researchers to collect representative data from a large population. Common sampling methods include random, judgmental, systematic, stratified, and cluster sampling.
Random sampling is a method where each member of the population has an equal chance of being selected for the sample. It involves selecting individuals randomly, often using random number generators or lottery-type methods. For example, when analyzing the properties of a...
Atomic Absorption Spectroscopy: Instrumentation01:22

Atomic Absorption Spectroscopy: Instrumentation

An atomic absorption spectrophotometer (AAS) comprises several components: a radiation source, an atomizer, a monochromator, and a detector. The radiation source can be a hollow-cathode lamp (HCL) or an electrodeless-discharge lamp (EDL), both of which provide a narrow emission line of the required wavelength. However, some instruments use continuum sources and high-resolution monochromators to achieve a narrow range of radiation.
The atomizer used in AAS can be either a flame atomizer or an...

You might also read

Related Articles

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

Sort by
Same author

The impact of surgical research pipeline programs on underrepresented minority high school and undergraduate students' career development.

American journal of surgery·2025
Same author

Outcomes of Percutaneous Nephrolithotomy in Kidney Transplant Recipients: Results from a Multicenter Study by the Spanish Urology Association's Renal Transplant Group.

World journal of urology·2025
Same author

Intraocular pressure values in the Iberian Peninsula: epidemiological study and influencing factors.

Journal of optometry·2025
Same author

SRBench++ : principled benchmarking of symbolic regression with domain-expert interpretation.

IEEE transactions on evolutionary computation : a publication of the IEEE Neural Networks Council·2025
Same author

Toward the inclusion of transgender and nonbinary residents among obstetrics and gynecology residency programs across the nation: a needs assessment.

American journal of obstetrics and gynecology·2025
Same author

User profile and engagement with a digital health application for urolithiasis management: A descriptive study of the first 699 users.

Actas urologicas espanolas·2025
Same journal

A tetrahedral probe constellation approach for measuring canonical momentum in self-organized laboratory plasma.

The Review of scientific instruments·2026
Same journal

High-precision and short duration operating time dispersion in a fast mechanical switch driven by an ultrasonic motor: Modeling, prediction, and compensation.

The Review of scientific instruments·2026
Same journal

Cluster assisted soft-landing hub (CLASH): An instrument for surface desorption and deposition using a pulsed cluster ion source.

The Review of scientific instruments·2026
Same journal

Influence of pre-ionization parameters on multi-channel discharge characteristics of field-distortion switch gaps.

The Review of scientific instruments·2026
Same journal

A Joule-Thomson low-temperature scanning tunneling microscope with vector magnet and rotatable scanning head.

The Review of scientific instruments·2026
Same journal

Fiber-optic triggering of a two-stage high-current linear transformer driver with laser energy below 100 μJ.

The Review of scientific instruments·2026
See all related articles

Related Experiment Video

Updated: Jun 27, 2026

Direct Comparison of Hyperspectral Stimulated Raman Scattering and Coherent Anti-Stokes Raman Scattering Microscopy for Chemical Imaging
09:46

Direct Comparison of Hyperspectral Stimulated Raman Scattering and Coherent Anti-Stokes Raman Scattering Microscopy for Chemical Imaging

Published on: April 28, 2022

Self-adaptive sampling rate data acquisition in JET's correlation reflectometer.

G de Arcas1, J M López, M Ruiz

  • 1Grupo de Investigación en Instrumentación y Acústica Aplicada, Universidad Politécnica de Madrid, Ctra. Valencia Km 7, 28031 Madrid, Spain. g.dearcas@upm.es

The Review of Scientific Instruments
|December 17, 2008
PubMed
Summary
This summary is machine-generated.

This study introduces a self-adaptive data acquisition system for fusion devices, optimizing data collection by adjusting sampling rates based on signal bandwidth, thus reducing data volume without information loss.

More Related Videos

Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy
10:03

Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy

Published on: June 27, 2014

Controlled Synthesis and Fluorescence Tracking of Highly Uniform Poly(N-isopropylacrylamide) Microgels
11:34

Controlled Synthesis and Fluorescence Tracking of Highly Uniform Poly(N-isopropylacrylamide) Microgels

Published on: September 8, 2016

Related Experiment Videos

Last Updated: Jun 27, 2026

Direct Comparison of Hyperspectral Stimulated Raman Scattering and Coherent Anti-Stokes Raman Scattering Microscopy for Chemical Imaging
09:46

Direct Comparison of Hyperspectral Stimulated Raman Scattering and Coherent Anti-Stokes Raman Scattering Microscopy for Chemical Imaging

Published on: April 28, 2022

Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy
10:03

Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy

Published on: June 27, 2014

Controlled Synthesis and Fluorescence Tracking of Highly Uniform Poly(N-isopropylacrylamide) Microgels
11:34

Controlled Synthesis and Fluorescence Tracking of Highly Uniform Poly(N-isopropylacrylamide) Microgels

Published on: September 8, 2016

Area of Science:

  • Plasma physics
  • Fusion energy research
  • Instrumentation and measurement

Background:

  • Fusion devices generate vast amounts of data, posing challenges for storage and analysis.
  • Existing data acquisition systems often collect more data than necessary, leading to inefficiencies.
  • Self-adaptive sampling rate capabilities offer a potential solution to manage data volume.

Purpose of the Study:

  • To design and evaluate a self-adaptive data acquisition system for the KG8B correlation reflectometer at JET.
  • To optimize data collection by dynamically adjusting sampling rates based on signal bandwidth.
  • To reduce the overall data volume while preserving essential diagnostic information.

Main Methods:

  • The system utilizes the ITMS platform for continuous data acquisition at a maximum expected sample rate.
  • Data is transferred to a host processor's memory buffer for software-based processing.
  • An intelligent decimation algorithm analyzes signal bandwidth per data block to determine optimal sample rates and decimation factors.
  • A producer-consumer architecture with memory buffers manages data flow between acquisition, processing, and storage modules.

Main Results:

  • The self-adaptive system successfully optimizes data collection by reducing data volume.
  • The system maintains the diagnostic information content by adapting the sampling rate to signal bandwidth.
  • Performance evaluation demonstrates the system's effectiveness in managing data throughput.

Conclusions:

  • Self-adaptive data acquisition systems are effective in reducing data volume in fusion devices.
  • The designed system for the KG8B correlation reflectometer at JET demonstrates the feasibility and benefits of this approach.
  • This technology can improve the efficiency of data handling in fusion research.