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Ultrasonic detection device for Chinese medicament extract concentrated solution density and application

A technology of density detection and concentrated liquid, which is applied in measuring devices, using sound waves/ultrasonic waves/infrasonic waves to analyze fluids, specific gravity measurement, etc., can solve problems such as no application of traditional Chinese medicine

Inactive Publication Date: 2010-12-08
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Low-energy ultrasonic detection technology has been used in the online detection of food, chemical and other processing processes, but it has not yet been applied in the field of traditional Chinese medicine production

Method used

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  • Ultrasonic detection device for Chinese medicament extract concentrated solution density and application
  • Ultrasonic detection device for Chinese medicament extract concentrated solution density and application
  • Ultrasonic detection device for Chinese medicament extract concentrated solution density and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] see figure 1 , a kind of traditional Chinese medicine extraction concentrated liquid density detection device, by ultrasonic flaw detector 1, ultrasonic transducer 2 (liquid immersion probe diameter 10mm, center frequency 5MHz,-6dB bandwidth 20%), detection cell 3 (made of organic plastics, long 10cm, 3.5cm in width, 4cm in height, two transducers (one receiving and one sending, interchangeable, strictly aligned with each other, tightly fixed on the side wall of the test pool, with a distance of 3.5cm) and a computer workstation 4. The SYV-50-2-1 cable is used to connect the ultrasonic flaw detector and the ultrasonic transducer, and the U59 shielded wire is used to connect the ultrasonic flaw detector and the computer.

[0024] The device of the present invention adopts the widely used pulse-echo technology at present, and adopts the working form of transmitting-receiving, and the two transducers are respectively transmitting and receiving transducers (interchangeable)...

Embodiment 2

[0030] 1. Dilute five batches of Danshen concentrated liquid samples produced by Zhengda Qingchunbao Pharmaceutical Co., Ltd. with distilled water respectively, and prepare a series of standard samples of densities. There are 39 standard samples of Danshen, and a P2-B-5 liquid specific gravity balance is used. The density of each standard sample was measured at an ambient temperature of 25°C, and the 39 standard samples were randomly divided into a calibration set and a verification set. The distribution of sample densities in the calibration set and validation set is shown in Table 1. The density distribution range is 1.000~1.213g / ml.

[0031] Table 1 Distribution of sample densities in calibration set and validation set

[0032]

[0033] 2. Acquisition of sample ultrasonic signals Use an ultrasonic detection device to collect the ultrasonic signals of the samples in the calibration set and verification set, and collect 6 time-domain spectra for each sample. The obtained ...

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Abstract

The invention provides a Chinese medicament extract concentrated solution density detection device, which consists of an ultrasonic flaw detector, an ultrasonic transducer, a detection cell and a computer workstation, wherein the ultrasonic flaw detector is connected with the ultrasonic transducer by adopting an SYV-50-2-1 cable, and the ultrasonic flaw detector is connected with a computer by adopting a U59 shielding line. An ultrasonic time-domain spectrum signal of the Chinese medicament extract concentrated solution is acquired by adopting ultrasonic pulse echo technology, a frequency domain characteristic spectrum is obtained by adopting Fourier transform, regression analysis is performed on the characteristic spectrum and the extract concentrated solution density by using a partial least square regression method, and finally the extract concentrated solution density is forecasted by using a regression model. The ultrasonic detection technology is applied to the quality control field of a Chinese medicament production process, and has significance for improving the quality control level of the Chinese medicament production process.

Description

technical field [0001] The invention belongs to the field of traditional Chinese medicine production detection, and relates to an ultrasonic detection device for density of concentrated liquid extracted from traditional Chinese medicine, which is suitable for detecting the density of liquid samples in the production process of traditional Chinese medicine. Background technique [0002] At present, most of our country controls the production of traditional Chinese medicine by experience, which not only increases the production cost, but also often cannot guarantee the quality. The density measurement data of traditional Chinese medicine extract concentrate is the quality control index of the concentration link in the production process of traditional Chinese medicine. However, there is a lack of corresponding rapid detection methods in the actual production process of traditional Chinese medicine, and it is difficult to realize online detection and real-time monitoring of qual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N9/24G01N29/02
Inventor 瞿海斌程翼宇
Owner ZHEJIANG UNIV
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