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

Pascal's Law01:04

Pascal's Law

10.8K
In 1653, the French philosopher and scientist Blaise Pascal published "Treatise on the Equilibrium of Liquids," which discussed the principles of static fluids. A static fluid is a fluid that is not in motion. When a fluid is not flowing, we say that the fluid is in static equilibrium. If the fluid is water, we say it is in hydrostatic equilibrium. For a fluid in static equilibrium, the net force on any part of the fluid must be zero; otherwise, the fluid will start to flow. Pascal...
10.8K
Application of Pascal's Law01:03

Application of Pascal's Law

10.2K
Pascal's experimentally proven observations—that a change in pressure applied to an enclosed fluid is transmitted undiminished throughout the fluid and to the walls of its container—provide the foundations for hydraulics, one of the most important developments in modern mechanical technology.
Hydraulic systems are used to operate automotive brakes, hydraulic jacks, and numerous other mechanical systems. We can derive a relationship between the forces in a simple hydraulic system...
10.2K
Definition and Measurement of Pressure: Atmospheric Pressure, Barometer, and Manometer02:57

Definition and Measurement of Pressure: Atmospheric Pressure, Barometer, and Manometer

42.3K
Gas pressure is caused by force exerted by gas molecules colliding with the surfaces of objects. Although the force of each collision is very small, any surface of an appreciable area experiences a large number of collisions in a short time, which can result in high pressure.
42.3K
Fluid Pressure01:14

Fluid Pressure

1.1K
In mechanical engineering, fluid pressure plays a critical role in designing systems that utilize liquid flow, such as hydraulic systems, pumps, and valves. When designing these systems, engineers must ensure they can withstand the forces created by fluid pressure to avoid damage or failure.
According to Pascal's law, a fluid at rest will generate equal pressure in all directions. This pressure is measured as a force per unit area, and its magnitude depends on the fluid's specific...
1.1K
Measurement of Fluid Pressure01:16

Measurement of Fluid Pressure

557
Fluid pressure is commonly measured using devices called manometers, which rely on liquid columns to indicate pressure differences. The height of a liquid column in a manometer reflects the pressure exerted by the fluid, providing a simple yet effective means of measurement. Different types of manometers serve specific purposes based on their configurations and the type of fluids involved.
A basic form of manometer is the piezometer, a vertical tube open at the top and filled with the same...
557
Pressure Gauges01:20

Pressure Gauges

4.9K
Most pressure gauges, like those on scuba tanks, are calibrated to read zero at atmospheric pressure. Readings from such gauges are called the gauge pressure, which is the pressure relative to atmospheric pressure. When the pressure inside the tank exceeds atmospheric pressure, the gauge reports a positive value. Some gauges are designed to measure negative pressure. For example, many physics experiments must take place in a vacuum chamber, a rigid chamber from which some of the air is pumped...
4.9K

You might also read

Related Articles

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

Sort by
Same author

Quantum-Based Photonic Sensors for Pressure, Vacuum, and Temperature Measurements: A Vison of the Future with NIST on a Chip.

Measurement. Sensors·2024
Same author

Public attitude toward and perceptions of dairy cattle welfare in cow-calf management systems differing in type of social and maternal contact.

Journal of dairy science·2022
Same author

Transient heating in fixed length optical cavities for use as temperature and pressure standards.

Metrologia·2021
Same author

Factors influencing the implementation of best practice in burn care in Western Australia.

Burns : journal of the International Society for Burn Injuries·2021
Same author

The incidence of incisional hernias following ileostomy reversal in colorectal cancer patients treated with anterior resection.

Annals of the Royal College of Surgeons of England·2016
Same author

Different mechanisms for dynamical arrest in largely asymmetric binary mixtures.

Physical review. E, Statistical, nonlinear, and soft matter physics·2015
Same journal

Exploring the impact of air conditioning on the indoor air quality of UK homes.

Journal of physics. Conference series·2026
Same journal

Comparing methods for aggregating indoor air pollutant concentration over space and time.

Journal of physics. Conference series·2026
Same journal

All-in-SAM: from Weak Annotation to Pixel-wise Nuclei Segmentation with Prompt-based Finetuning.

Journal of physics. Conference series·2025
Same journal

Third party stabilization of unstable coordination in systems of coupled oscillators.

Journal of physics. Conference series·2023
Same journal

Progress in High-Speed Spin Testing of Superconducting Wire and Tapes for High-Field NMR Magnet Qualification.

Journal of physics. Conference series·2022
Same journal

Implementing High Q-Factor HTS Resonators to Enhance Probe Sensitivity in <sup>13</sup>C NMR Spectroscopy.

Journal of physics. Conference series·2022
See all related articles

Related Experiment Video

Updated: Jan 6, 2026

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions
08:42

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions

Published on: October 10, 2014

11.9K

Towards Photonic based Pascal Realization as a Primary Pressure Standard.

J Ricker1, J Hendricks1, P Egan2

  • 1Thermodynamic Metrology, National Institute of Standards and Technology (NIST), Gaithersburg, MD, USA.

Journal of Physics. Conference Series
|October 4, 2019
PubMed
Summary
This summary is machine-generated.

New laser interferometry techniques using refractometry allow precise gas pressure measurements. These quantum-based methods, including Fixed and Variable Length Optical Cavities, offer primary standards for pressure metrology.

More Related Videos

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

8.9K
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

9.0K

Related Experiment Videos

Last Updated: Jan 6, 2026

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions
08:42

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions

Published on: October 10, 2014

11.9K
A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

8.9K
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

9.0K

Area of Science:

  • Metrology
  • Quantum Mechanics
  • Optical Physics

Background:

  • Traditional gas pressure standards often rely on artifact-based methods, including mercury-based systems.
  • There is a critical need to transition towards more fundamental, quantum-based standards for pressure realization.

Purpose of the Study:

  • To introduce and describe novel refractometry-based techniques for gas pressure measurement.
  • To establish traceability of these measurements to fundamental quantum mechanical principles.
  • To advance gas pressure metrology beyond artifact-based standards.

Main Methods:

  • Utilized laser interferometry in conjunction with refractometry.
  • Investigated two primary techniques: Fixed Length Optical Cavity (FLOC) and Variable Length Optical Cavity (VLOC).
  • Detailed the experimental setup and measurement procedures at NIST.

Main Results:

  • Demonstrated the capability of laser interferometry and refractometry for accurate gas pressure measurements.
  • Established the traceability of the developed techniques to quantum mechanics, enabling primary standard realization.
  • Validated the FLOC and VLOC methods for precise pressure determination.

Conclusions:

  • The developed refractometry-based laser interferometry techniques represent a significant advancement in gas pressure metrology.
  • These quantum-based methods provide a pathway to replace traditional artifact standards, enhancing accuracy and safety.
  • The successful implementation of FLOC and VLOC technologies paves the way for the quantum-based realization of the pascal.