Search research articles

Related Concept Videos

Deriving the Speed of Sound in a Liquid

Deriving the Speed of Sound in a Liquid

As with waves on a string, the speed of sound or a mechanical wave in a fluid depends on the fluid's elastic modulus and inertia. The two relevant physical quantities are the bulk modulus and the density of the material. Indeed, it turns out that the relationship between speed and the bulk modulus and density in fluids is the same as that between the speed and the Young's modulus and density in solids.
The speed of sound in fluids can be derived by considering a mechanical wave propagating...

Density

Density

Density is an important characteristic of substances, crucial in determining whether an object sinks or floats in a fluid. Its SI unit is kg/m3, and its cgs unit is g/cm3. The density of an object helps in identifying its composition, and also reveals information about the phase of the matter and its substructure. The densities of liquids and solids are roughly comparable, consistent with the fact that their atoms are in close contact. However, gases have much lower densities than liquids and...

Density, Specific Weight, Specific Gravity and Compressibility of Fluid

Density, Specific Weight, Specific Gravity and Compressibility of Fluid

Density, specific weight, specific gravity, and compressibility are fundamental properties of fluids. Density is the mass per unit volume, characterizing the mass of a fluid system. It influences buoyancy, pressure, flow dynamics, viscosity, thermal conductivity, and sound propagation. For instance, in pipeline design, accurate density measurements ensure that the pipeline can handle the fluid's mass.
Specific weight represents the weight per unit volume and is calculated by multiplying density...

You might also read

Related Articles

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

Sort by

Same author

Vemurafenib and cobimetinib combination therapy for BRAFV600E-mutated melanoma favors posterior reversible encephalopathy syndrome.

Annals of oncology : official journal of the European Society for Medical Oncology·2019

Same author

Search for dinucleon decay into kaons in Super-Kamiokande.

Physical review letters·2014

Same author

Role of mass accumulation and viscoelastic film properties for the response of acoustic-wave-based chemical sensors.

Analytical chemistry·2011

Same author

Studies on neuronal differentiation and signalling processes with a novel impedimetric biosensor.

Biosensors & bioelectronics·2010

Same author

The impact of "high-producer" interleukin-6 haplotypes on cardiovascular morbidity and mortality in a kidney transplant population.

Transplantation proceedings·2009

Same author

Comparison of the efficacy of levocetirizine 5 mg and desloratadine 5 mg in chronic idiopathic urticaria patients.

Allergy·2008

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Video

Updated: Jul 7, 2026

Ultrasound Velocity Measurement in a Liquid Metal Electrode

Ultrasound Velocity Measurement in a Liquid Metal Electrode

Published on: August 5, 2015

Ultrasonic density sensor for liquids.

A Puttmer¹, P Hauptmann, B Henning

¹A. Puttmer is with Siemens AG, A&D GT5, 76181 Karlsruhe, Germany. alf.puettmer@khe.siemens.de

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

|February 2, 2008

Summary

This study introduces a durable ultrasonic density sensor for real-time liquid measurements. It achieves high accuracy (+/-0.1%) using acoustic reference measurements, suitable for various industrial applications.

More Related Videos

A Stable Phantom Material for Optical and Acoustic Imaging

A Stable Phantom Material for Optical and Acoustic Imaging

Published on: June 16, 2023

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

Published on: August 30, 2012

Related Experiment Videos

Last Updated: Jul 7, 2026

Ultrasound Velocity Measurement in a Liquid Metal Electrode

Ultrasound Velocity Measurement in a Liquid Metal Electrode

Published on: August 5, 2015

A Stable Phantom Material for Optical and Acoustic Imaging

A Stable Phantom Material for Optical and Acoustic Imaging

Published on: June 16, 2023

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

Published on: August 30, 2012

Area of Science:

Materials Science
Acoustics
Sensor Technology

Background:

Accurate liquid density measurement is crucial for process control and quality assurance in various industries.
Existing sensors may lack durability or suitability for on-line, wide-diameter applications.
Ultrasonic sensing offers a non-invasive method for fluid property determination.

Purpose of the Study:

To present a novel ultrasonic density sensor design.
To achieve high accuracy and durability for on-line liquid density measurements.
To validate the sensor's performance across a range of tube diameters.

Main Methods:

The sensor utilizes two transducers: one emitter/receiver and one receiver.
Density is determined by analyzing the ultrasound reflection coefficient and transit time at the quartz glass-liquid interface.
An internal acoustic reference measurement, using sound from the rear of the piezoceramic disk, ensures high long-term stability and accuracy.

Main Results:

The sensor achieves an accuracy of +/-0.1% of full scale.
High long-term stability was demonstrated through internal acoustic reference measurements.
The design is suitable for on-line measurements in tubes of various diameters.

Conclusions:

The developed ultrasonic density sensor offers a robust and accurate solution for real-time liquid analysis.
Its design considerations, including materials and signal-to-noise ratio, contribute to its reliable performance.
Potential applications include concentration measurement and ultrasonic mass flow measurement.