DEVICE AND METHOD FOR MEASURING CONCENTRATION OF BIOLOGICAL MARKER BASED ON SPIRAL RESISTOR

A device for measuring a concentration of a biological marker based on a spiral resistor, comprising a biosensing module (10), a spectrum receiving module (20), a control module (30), a drive module (40), and a spiral track resistor (50). The biosensing module (10) is configured to receive and reflect a characteristic spectrum signal and combine antigens in the biological marker. The spectrum receiving module (20) is configured to receive the characteristic spectrum signal reflected by an optical receiving unit (101) and transmit the characteristic spectrum signal to the control module (30). The control module (30) is configured to control, according to the characteristic spectrum signal, the drive module (40) to drive a spiral track resistor (50) and the spectrum receiving module (20) to move, determine a displacement offset of a characteristic spectrum according to an output resistance of the spiral track resistor (50), and determine a concentration of the biological marker according to the displacement off