Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

An ultrasonic focusing method for online measurement of sediment concentration in rivers

A measurement method and focusing technology, applied in the fields of sediment concentration, signal processing, ultrasonic liquid-solid two-phase flow measurement, can solve the problem of unknown application effect, etc., and achieve the effect of reducing scattering attenuation and increasing sound energy

Active Publication Date: 2019-03-29
CHINA JILIANG UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The ultrasonic models based on the attenuation method, including the classic ECAH model and the coupled phase model, have their own scope of application and inevitable defects, and they are all obtained in the case of a planar ultrasonic transducer and in the case of a focused transducer. The effect of the application is unknown

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An ultrasonic focusing method for online measurement of sediment concentration in rivers
  • An ultrasonic focusing method for online measurement of sediment concentration in rivers
  • An ultrasonic focusing method for online measurement of sediment concentration in rivers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] The present invention will be further described below in conjunction with the accompanying drawings.

[0057] Build a set of ultrasonic focused river sediment concentration online measurement device with focused ultrasonic probe as the core. The ultrasonic focusing type river sediment concentration on-line measuring device includes three modules: a signal generation module, an ultrasonic transducer module and a data acquisition module. The signal generation module includes a signal generator 51 and a power amplifier 52. The ultrasonic transducer module includes a focused ultrasonic transmitting probe 53 and a focused ultrasonic receiving probe 55, and the data acquisition module includes a power amplifier 56 and an oscilloscope 57.

[0058] After the construction is completed, debug the system, and after confirming that it is correct, turn on each switch. The signal generator 51 sends out a burst wave with a frequency of 1.13 MHz and a peak-to-peak value of 2 Vpp as an...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
frequencyaaaaaaaaaa
Login to View More

Abstract

The invention discloses an ultrasonic focusing type online measurement method of river sediment concentration. The invention includes: building a set of ultrasonic focused river sediment concentration on-line measurement device with a focused ultrasonic probe as the core; debugging the measurement system before the measurement, and then starting the measurement device for measurement; symbolizing the collected signals The dynamic filter analysis is used to obtain the parameter value concentration measurement related to the sediment concentration; the relationship diagram between the concentration measurement and the sediment concentration is established to obtain the measurement model. The invention can effectively reduce the scattering attenuation of ultrasound in the measurement process, improve the sensitivity and precision of the measurement system, and at the same time improve the defects of low sensitivity and large error in some ranges caused by the average value of the attenuation rate, and can be widely used in many rivers Measurement of regional suspended matter concentrations.

Description

technical field [0001] The invention relates to the technical fields of ultrasonic liquid-solid two-phase flow measurement, signal processing and sediment concentration, in particular to an ultrasonic focused online method for measuring river sediment concentration. Background technique [0002] In recent years, the problem of water resources in my country has become increasingly prominent. Whether it is the scarcity of water resources or the problem of pollution, it is necessary to accurately monitor the concentration of particulate matter in water. The content and characteristics of water suspended matter are one of the important parameters to characterize water quality, and are closely related to riverbank vegetation, water conservancy projects, water conservancy machinery, shipping channels, marine ecology, hydrometrics, water body protection, and disaster prevention and mitigation. Its effective measurement has Significance. [0003] At present, the traditional method ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/06
CPCG01N15/06
Inventor 谢代梁夏一丹安雅丽曹永刚徐志鹏
Owner CHINA JILIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com