Sound Velocity Sensor for Measuring Fluids in Flow Lines

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Publication: EP4563951A1
Published: 2025-06-04
Family Size: 3
Granted: Yes (1/3)

Simple SummaryContent extracted from patent full text and abstract with AI.

The invention describes a sound velocity sensor designed to measure the speed of sound in fluids (gases or liquids) within a pipeline. This compact sensor features a chamber with ultrasound transducers and can be integrated directly inside a fluid-carrying pipe. The sensor has a mechanism to isolate fluid in a measurement chamber using an electromagnet and spring, enabling accurate, in-line measurement of fluid properties such as sound speed, which correlates with density and specific heat capacity.

Use CasesContent extracted from patent full text and abstract with AI.

  • Real-time monitoring of fluid composition in industrial pipelines (e.g., gas, refrigerants, heat transfer fluids)
  • Density and/or heat capacity measurement in heating and cooling circulatory systems
  • Quality and process control in chemical or energy industries
  • Leak detection or anomaly detection in pipeline systems
  • Integration in smart flow metering or process automation systems
  • Research and laboratory analysis for fluid characterization

BenefitsContent extracted from patent full text and abstract with AI.

  • Compact, space-saving design allowing full integration into pipelines (in-line installation)
  • Simple and robust construction, reducing mechanical complexity and points of failure
  • Can be applied to both high and low temperature environments
  • Real-time and in-situ measurement capability without the need for external sampling
  • Handles potentially contaminated or chemically aggressive fluids due to robust diaphragm and materials
  • Low pressure drop and minimal interference with pipeline flow
  • Improved safety and process control by allowing for continuous monitoring
  • Flexible operation: sensor can be isolated from the flow for measurement, minimizing disturbance

Technical Classifications (CPCs)

Main Classifications

Physics & Measurement

Sub Classifications

Measuring & Testing

CPC Codes

G01F1/662G01F1/667G01N29/024G01N29/222

Inventors & Applicants

Applicants

Technische Univ Chemnitz Koerperschaft des Oeffentlichen Rechts

Patent Abstract

The invention relates to a sound velocity sensor (10) for a fluid (FL), with at least one measurement chamber (11) in which at least one acoustic transducer (14, 15) is arranged, wherein at least one inlet opening (12) and at least one outlet opening (13) lead to the measurement chamber (11) and the measurement chamber (11) can be filled/flowed through by the fluid (FL) to realize a measurement, wherein the sound velocity sensor (10) is arranged in a fluid line (1) through which the fluid (FL) flows and is surrounded by fluid (FL). (Figure 1)

Key Information

Publication No.

EP4563951A1

Family ID

93655881

Publication Date

2025-06-04

Application No.

EP24401026A

Application Date

2024-10-30

Priority Date

2023-11-28

Granted

Yes (1/3)

Possible Cooperation

For further information please contact the transfer office.