Measuing system and electrode for measuring skin impedance in small zone skin

Abstract

A measurement system for measuring impedance in a small region of skin and an electrode used in the measurement system are provided. The measurement system includes an electrode unit, which includes a plurality of current supply electrodes for supplying a constant current and a plurality of measurement electrodes separated from the current supply electrodes in order to measure a response signal of skin; a current source, which supplies the constant current to the current supply electrodes; a signal processing unit, which is connected to the measurement electrodes, receives response signals generated in the skin in reaction to the applied constant current, generates a potential difference signal, removes noise from the potential difference signal, and amplifies the noise-removed potential difference signal; a signal conversion unit, which converts the potential difference signal received from the signal processing unit from an analog format into a digital format; and an image display unit, which converts the digital potential difference signal into an image signal and displays the image signal.

Description

technical field [0001] The present invention relates to a measurement system for measuring skin impedance (i.e., resistance value) in a small area of ​​skin and electrodes used in the measurement system, and more particularly to impedance measurement with a supply electrode and a measurement electrode, respectively. An electrode for measuring measured skin impedance in a small patch of skin, and an impedance measurement system using the electrode. Background technique [0002] Since the results of analyzing skin impedance values ​​in small skin areas are used in various applications, methods and devices for accurately measuring skin impedance have been researched and developed. Typically, the traditional technique of measuring skin impedance is used to detect meridian points on the skin, which are used to diagnose and treat diseases in the field of Chinese medicine. [0003] Meridian points are reaction points in the skin or muscles that are used in Chinese medicine or hand...

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Problems solved by technology

Therefore, real skin impedance obtained from dermis and subcutaneous tissue, and even contact resistance and epidermal impedance are included in the measurement, so skin impedance cannot be accurately measured

[0007] More specifically, the measured value of the contact resistance varies greatly depending on the measurer's skill (for example, the ability to control the contact pressure and contact speed of the electrode) and the state of the skin surface contacting the electrode such as temperature and humidity, as determined by Therefore, the measured value of skin impedance is greatly affected by

Therefore, it is difficult to obtain accurate measurements of skin impedance

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