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

Portable sediment concentration measuring method and device based on optical principle

A concentration measurement, optical principle technology, applied in measurement devices, scientific instruments, analysis of suspensions and porous materials, etc., can solve the problems of difficult signal detection, inaccurate measurement, etc., to avoid accidental errors, good accuracy, and scope of application wide effect

Pending Publication Date: 2021-01-22
ZHEJIANG INST OF HYDRAULICS & ESTUARY
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in muddy water with high concentration, the ultrasonic signal attenuates sharply, and the signal is difficult to detect. In addition, in muddy water with complex sediment media, the reflection signal will be greatly enhanced when the ultrasonic encounters larger sediment particles, resulting in inaccurate measurement. , so the Doppler densitometer is generally used in occasions where the concentration is moderate and the sediment particles are relatively uniform

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
  • Portable sediment concentration measuring method and device based on optical principle
  • Portable sediment concentration measuring method and device based on optical principle
  • Portable sediment concentration measuring method and device based on optical principle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027]The present invention will be further described below in conjunction with the embodiments shown in the drawings, but the present invention is not limited to the following embodiments.

[0028]The portable sediment concentration measurement method based on the optical principle provided by the present invention: proceed as follows:

[0029]1) A plurality of optical measuring points arranged along the length of the rod are set on at least one measuring rod, and each optical measuring point includes a transmitting probe and a receiving probe;

[0030]2) Extend the measuring rod vertically into the water flow, and simultaneously measure the light reflection signals at different depths and positions, and then the signal processing module will output the processed sediment content data to the control board;

[0031]3) A box is also fixed on the measuring rod. The box is equipped with a control board, a power supply module, a light source modulation module, a signal processing module, a data sto...

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
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a sediment observation method and device for river engineering model sediment test and onsite river. According to the technical scheme, a portable sediment concentration measuring method based on the optical principle comprises the following steps that (1) a plurality of optical measuring points arranged in the length direction of a rod piece are arranged on at least one measuring rod piece, wherein each optical measuring point comprises a transmitting probe and a receiving probe; 2) a box is also fixed on the measuring rod piece, a control panel, a power supply module, an infrared laser generator, a signal processing module, a data storage module and an inclination sensor are arranged in the box, the receiving probe of each measuring point is communicated with theoptical signal processing module through an optical fiber and then is electrically connected with the control panel; and (3) the measuring rod piece vertically stretches into water flow, and after light reflection signals of all positions of different depths are measured at the same time, processed sediment content data are transmitted to the control panel through the signal processing module. The method and the device have the characteristics of being convenient to operate and accurate in measurement.

Description

Technical field[0001]The invention relates to a river model sediment test and an on-site river sediment observation method and device, in particular to a portable method and device for measuring sediment concentration.Background technique[0002]Sediment research is an important research direction in the study of river and land governance, and it is also a key indicator of offshore marine environmental governance. In sediment research, it is necessary to study the transfer trajectory of sediment and the amount of sediment transport. The specific method of research is to study sediment The concentration change and radiation range in the movement process are used to determine the amount and movement trend of sediment. Therefore, the measurement of sediment concentration is of great significance in sediment research.[0003]At present, the direct weighing method is generally used to measure the sediment concentration. The specific method is: first take a certain amount of sample, and then ...

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 Applications(China)
IPC IPC(8): G01N15/06
CPCG01N15/06G01N2015/0096G01N2015/0687G01N15/075
Inventor 王永举邵杰赵鑫黄世昌董伟良梁斌许政
Owner ZHEJIANG INST OF HYDRAULICS & ESTUARY
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