A kind of on-line monitoring device of microbial petri dish

Abstract

The invention discloses an online monitoring device of a biologic culture dish. The online monitoring device comprises a casing, a top cover panel installed on the casing and a casing door mounted inthe front of the casing, an operation panel and a display screen are arranged in the front side of the top cover panel, and an observation window is arranged in the casing door; a detector and culturedish shoe plates are arranged in the casing, and the position of the detector is adjusted by controlling an elevating device and adjusting arms in the detector; the positions of the culture dish shoeplates are controlled by corresponding slide rails of the culture dish shoe plates; laser emitted by a laser device in the detector passes a laser lens to irradiate a sample to be detected in the culture dish; and a photoelectric detector and a fluorescence detector monitor scattered light and fluorescence generated after radiation to monitor microbes in the sample. According to the biologic culture dish, laser is used for online monitoring, the automatic degree is high, operation is simple, a computer system is used for control, the detection range is wide and the accuracy is high.

Description

technical field [0001] The invention relates to a microorganism monitoring device, in particular to an on-line monitoring device for a microorganism culture dish. Background technique [0002] Microorganisms are a general term for a group of tiny organisms that are widely distributed, simple in structure, small in size, reproduce rapidly, cannot be directly observed by the naked eye, and must be observed with the help of an optical microscope or an electron microscope. [0003] At present, for microbial detection, the microorganisms are generally cultivated under appropriate conditions through the culture medium, and finally the visible colonies obtained are counted and analyzed; in the microbial inspection, the cultivation of microorganisms has high environmental requirements such as temperature and humidity. It is necessary to maintain a certain culture time under suitable temperature and humidity conditions in order to cultivate, observe and count the types and quantities...

AI Technical Summary

Problems solved by technology

[0003] At present, for microbial detection, the microorganisms are generally cultivated under appropriate conditions through the culture medium, and finally the visible colonies obtained are counted and analyzed; in the microbial inspection, the cultivation of microorganisms has high environmental requirements such as temperature and humidity. It is necessary to maintain a certain culture time under suitable temperature and humidity conditions in order to cultivate, observe and count the types and quantities of microorganisms. Usually, the conventional means of examining the growth of microorganisms is through colony counting; The detection method of counting can only get the number of colonies, but cannot quickly detect the number of actual microorganisms, and the result is lagging behind. Once a problem is found, not only the investigation mechanism needs to be started, but also the previous products need to be processed. Otherwise, the product can only be released after all the results are passed, but this often delays the necessary time to market and causes business losses; at the same time, the environmental conditions and the operation of the testing personnel during the testing process will also cause damage to the testing results. In addition, there are some microorganisms that cannot be cultivated under the established conditions at all; this cumbersome detection procedure not only takes up a lot of detection resources, but more importantly, the lengthy detection cycle is not conducive to online control or microbial detection Therefore, the research and establishment of rapid microbial detection methods to strengthen the monitoring of biological safety have attracted more and more attention from scientists from all over the world, and the search for rapid, accurate and sensitive microbial detection methods has also become a research hotspot.

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