REMOVABLE MOBILE COMPACT MEASURING MODULE OF QUANTITATIVE CONTENT OF SOLIDS IN AIR Russian patent published in 2021 - IPC G09B23/06 

FIELD: teaching devices.

SUBSTANCE: invention relates to teaching devices and relates to the design of a removable mobile compact measuring module intended for connection with a mobile autonomous electronic device (for example, a smartphone) and used in educational hardware (for example, in mobile laboratories), including when carrying out laboratory work with the system measurement management in secondary general education and higher educational institutions. The invention can be used in the study of physics, chemistry, biology, physiology, ecology and other disciplines, as well as in the study of the processes of dust formation, dust absorption, determination of dust concentration. The invention is a compact housing with elements of mechanical and electrical connection to a mobile autonomous electronic device, including a connector and a holder, a sensing element (primary converter) located in the housing and an electronic board with an analog-to-digital converter, and made with the possibility of control by means of the program of this mobile autonomous electronic device and graphic display of the obtained digital data, while the sensitive element - the sensor of the quantitative content of solid impurities in the air (primary converter) is located in the housing, and the housing of the primary converter is made with inlet and outlet openings for air passage, equipped with an impeller, a laser with an optical axis located perpendicular to the inlet air flow, and an infrared photodiode aimed at the laser beam, and the impeller, laser and photodiode are equipped with an optical lock made in the form of labyrinth partitions made of light-absorbing material, while the primary converter is connected to the microcontroller of the electronic board, and the electronic board additionally includes an analog part, moreover, the elements of mechanical and electrical connection to a mobile autonomous electronic device are made universal, and the connector is made either in the form of microUSB, or in the form of USB type-c.

EFFECT: invention provides a miniaturization and increase in the versatility and multifunctionality of a removable measuring module with the ability to conduct various demonstrations assembled with a mobile autonomous electronic device and change the conditions for conducting experiments and experiments when visualizing the results obtained.

1 cl, 8 dwg