Portable colloidal gold analyzer based on short-distance focusing photoelectric sensor

Abstract

The invention discloses a portable colloidal gold analyzer based on a short-distance focusing photoelectric sensor. The portable colloidal gold analyzer comprises a motor threshold control module, a driving motor, a colloidal gold test paper card, a transmission device, a photoelectric sensor, an embedded core control module, a two-dimensional code scanning gun, an LCD display screen and a 3G communication module, wherein the motor threshold control module and the driving motor form signal connection, the driving motor and the transmission device form driving connection, the colloidal gold test paper card is arranged on the transmission device, and the photoelectric sensor, the two-dimensional code scanning gun, a printer, an output serial port, a GPRS device, a USB interface, a Wifi module, the LCD display screen and the 3G communication module are connected to the embedded core control module through signals. According to the present invention, the colloidal immunochromatography goldtest paper strip is subjected to rapid and accurate quantitative detection analysis based on the optical colorimetric principle; the optical path can be subjected to short-distance focusing through the refraction of the optical path so as to greatly reduce the volume of the instrument; and the portable colloidal gold analyzer has advantages of low cost, high sensitivity, small size, light weightand the like.

Description

technical field [0001] The invention belongs to the technical field of colloidal gold analyzers, in particular to a portable colloidal gold analyzer based on a short-distance focusing photoelectric sensor. Background technique [0002] At present, colloidal gold immunochromatographic test paper detection has become a routine detection method in biomedicine, agriculture, animal husbandry, food safety, etc., and has been widely used, but the reading of most test paper test results still depends on human eyes Qualitative level, it is difficult to achieve accurate quantitative measurement. [0003] Most of the common photoelectric sensing immunochromatographic analyzers on the market are large in size and not easy to carry, so they are suitable for precise measurement in the laboratory. However, CCD imaging technology has a large amount of calculations for image processing and high requirements for processors. It is difficult for ordinary single-chip microcomputers to complete ...

AI Technical Summary

Problems solved by technology

In addition, when multiple LEDs work at the same time, the LED temperature rise will affect the stability of the light source, and the problem of LED heat dissipation needs to be considered

Considering these problems, the volume and weight of the instrument will increase significantly, and the portability of the equipment will be affected

Since white light LEDs are generally used as the light source, and the test zone of the colloidal gold immunochromatography test strip is magenta, which selectively absorbs green light, but the proportion of green light in white light is limited, so the difference between the test zone and the background The difference in reflected light is not obvious, and the color contrast between the area to be tested and the background is not high

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