Universal liquid concentration supersonic-detection method and universal liquid concentration supersonic-detection device

A liquid concentration, detection device technology, applied in measurement devices, material analysis using sonic/ultrasonic/infrasonic waves, instruments, etc., can solve the problems of large data storage, external interference and false detection, temperature influence, etc., to achieve detection accuracy High, simple structure and strong versatility

Active Publication Date: 2013-09-04
无锡煤矿机械股份有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

But a key factor is that temperature has a great influence on the speed of sound, which will directly affect the measurement accuracy of liquid concentration.
In order to overcome the influence of temperature on the measurement accuracy, the method of directly comparing the data at different temperatures is often used to red

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  • Universal liquid concentration supersonic-detection method and universal liquid concentration supersonic-detection device
  • Universal liquid concentration supersonic-detection method and universal liquid concentration supersonic-detection device
  • Universal liquid concentration supersonic-detection method and universal liquid concentration supersonic-detection device

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Embodiment Construction

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all of the contents related to the present invention.

[0029] In this embodiment, the general-purpose ultrasonic liquid concentration detection method specifically includes the following steps:

[0030] Step S101, performing acoustic time sampling for different solvents and solutes at different temperature points, and analyzing the sampling results to obtain the corresponding relationship between acoustic time and temperature and solution concentration, wherein the acoustic time refers to the ultrasonic wave in a fixed sound path. on the propagation time.

[0031] Since the speed of sound i...

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Abstract

The invention discloses a universal liquid concentration supersonic-detection method and a universal liquid concentration supersonic-detection device. The universal liquid concentration supersonic-detection method is characterized in that because of different supersonic velocities of supersonic wave in different mediums, according to known sonic path distances, sonic travel time in the detected liquid is measured; and the measured value is corrected by real-time temperature values so that percentage contents of different solutes in different solvents are obtained. Through sampling of supersonic wave propagation velocities in different solvents and solutes at different temperatures, sampling results are obtained, and through the sampling results, a corresponding relationship formula of the supersonic velocities of supersonic wave in the solutions, and the temperatures and the concentrations is worked out so that liquid concentration measurement universality is realized. Through measurement of supersonic velocities in air and in purified water under laboratory conditions, the method and the device realize correction of system hardware errors and sonic path distance errors and improve a measurement precision.

Description

technical field [0001] The invention relates to the technical field of on-line detection of liquid concentration, in particular to a universal ultrasonic liquid concentration detection method and device. Background technique [0002] In chemical, pharmaceutical, grain and oil, coal mining and other production sectors, there are a large number of raw materials, intermediate products and final products in solution state. Many chemical production still use the method of intermittent sampling and chemical titration for concentration analysis. This method requires manual sampling and visual reading, so it takes a long time to obtain results, and the detected liquid concentration accuracy is low. Ultrasonic waves are pollution-free and noise-free, and will not cause any adverse effects on the environment. The speed of sound propagating in liquids with different concentrations is different, so ultrasonic waves can be used to realize online detection of liquid concentration. But a ...

Claims

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Application Information

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IPC IPC(8): G01N29/024G01N29/24
Inventor 申新建
Owner 无锡煤矿机械股份有限公司
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