Sensor circuit for detecting thickness of sunscreen
A sensor circuit and sunscreen technology, which is applied in the field of ultraviolet detection circuit, can solve the problems of uselessness, poor preventive effect of sunscreen, uneven application of sunscreen, etc., and achieve the effect of high accuracy and fast measurement response speed
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[0020] refer to figure 1 As shown, the present invention provides a kind of sensor circuit that detects sunscreen thickness, comprises UV generation and control circuit, and described circuit is connected to microprocessor, is controlled by microprocessor; Comprising UV photoelectric detection and control circuit simultaneously, described The circuit is connected to the micro-current amplifying circuit, and the micro-current amplifying circuit is connected to the microprocessor to amplify the measured weak signal and send it to the micro-processing for processing and quantification; it also includes an auxiliary circuit to provide power for the system and provide human-computer interaction related Sub-circuits, etc.; also includes a filter, used to eliminate external interference on the UV photodetection circuit. The UV generation circuit uses ultraviolet light-emitting diodes, and the sensor is controlled by a microprocessor, such as figure 2 shown. Through the sensor's te...
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