FEASIBILITY OF USING ELECTROSTATIC METHODS TO DETECT MOTION OF HUMAN BEINGS OR OTHER NEARBY OBJECTS

摘要

The approach of a metallfc object in the vicinity of a resonating LRC circuit will change the resonant frequency and "Q" value of the circuit somewhat as new boundary" conditions are set up near the capacitance and induction of the circuit. Forgery close approaches, these changes are detectable as fluctuations in current, voltage, and dissipated power in the circuit. Thus, in a sense, the LRC circuit serves as a detector of a metallic object. Based on the foregoing, an investigation has been carried out to study the feasibility of using electrostatic methods to detect the motion of objects, particularly human beings.