An Optimized Design of New Features to Detect Tumor Tissue Equivalent Apacitance Measurement System and Feasibility Analysis
ZHAO Weijie
LIN Xingjian
LIU Xiaojuan
LI Lihua
ZHENG Bin
Abstract：Different stages of cancer cells and normal cells have significant difference in capacitance.Looking for an inexpensive, non-invasive method for early diagnosis of cancer,a high-resolution bio-tissue capacitance measurement system was designed.The system consisted of DDS module,voltage-current conversion circuit,matching inductor and simulation capacitive and peak detection circuit.When the system was driven by alternating current,the circuit would resonate.The breast equivalent capacitance could be cal-culated by matching inductor and resonant frequency.Different equivalent capacitor values would reflect the pathological stage.When the simulation capacitance was 100~1000 pF,the system capacitance resolution was 8 pF.The system can be used for bio-tissue e-quivalent capacitance measurements,providing a new diagnosis of cancer early warning.
Keywords：Cancer warningEquivalent capacitanceResonanceCapacitance measurementResolution
Publication Date：2014-01-01
Online Publishing Date：2026-09-11(First online date of this platform, not the publication date of the document)
Pages：6( 76-81 )