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

Abstract

The invention discloses an online monitoring device for microbial culture dishes, which includes a box body, a top cover plate installed above the box body, and a box door installed in front of the box body. An operation panel and a display are provided in front of the top cover plate. screen, the box door is provided with an observation window; the inside of the box is provided with a detection device and a petri dish support plate, and the position of the detection device is adjusted by controlling the lifting device and the adjustment arm in the detection device; the petri dish is supported The plate slide rail controls the position of the Petri dish support plate, and the laser in the detection device emits laser light to illuminate the sample to be tested in the Petri dish through the laser lens; the photoelectric detector and the fluorescence detector detect the scattering generated after the irradiation. Light and fluorescence are used for monitoring to realize the monitoring of microorganisms in the sample; the present invention uses laser for online monitoring, which has a high degree of automation and simple operation. It is controlled by a computer system and has a wide detection range and high accuracy.

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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