Human skin water and oil analysis circuit and skin tester

Abstract

A human skin water and oil analysis circuit includes a water and oil detection module (110) and a single chip microcomputer (120). The water and oil detection module (110) is configured to receive a square wave signal, and use the square wave signal as an excitation signal to detect a percentage of human skin water and oil, and obtain a voltage signal capable of reflecting a percentage of human skin water and oil data; the single chip (120) is used for The voltage signal obtained by the water and oil detecting module (110) is subjected to analog-to-digital conversion, and the analog-digital converted voltage signal is sent to an external data processing device, so that the external data processing device performs data analysis on the voltage signal, and detects Percentage data of human skin water and oil. A skin tester includes the human skin water and oil analysis circuit. In the above manner, the accuracy of the human skin water and oil percentage test data can be improved.

Description

technical field [0001] The embodiments of the present application relate to the field of human skin testing, in particular to a human skin water and oil analysis circuit and a skin detector. Background technique [0002] With the development of science and technology, people are more and more concerned about health and beauty, and the detection of the body is particularly important. In the study of human body composition, measuring the bioelectrical impedance value of the human body can obtain information related to human health such as moisture and fat. It is of great significance to monitor people's physical condition and early diagnosis of diseases, so more and more skin testing products have emerged as the times require. [0003] Existing skin test products test the water-oil percentage of human skin through differential amplification detection circuits, and the single-chip microcomputer sends the test data to the mobile phone connected to the skin test product to analyz...

AI Technical Summary

Problems solved by technology

However, the accuracy of the single-frequency method test data is low, and the test data deviation of the same part even reaches 10%, the consistency is poor, and the water-oil characteristics of human skin cannot be well represented.

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