#$%^&*AU2012268926A120130815.pdf#####SYSTEMS AND METHODS FOR PHASE PREDICTIVE IMPEDANCE LOSS MODEL CALIBRATION AND COMPENSATION ABSTRACT The systems and methods of the present disclosure calibrate impedance loss model parameters associated with an electrosurgical system (100) having no external cabling or having external cabling with a fixed or known reactance, and obtain accurate electrical measurements of a tissue site by compensating for impedance losses associated with the transmission line of an electrosurgical device using the calibrated impedance loss model parameters. A computer system (240) stores voltage and current sensor data for a range of different test loads and calculates sensed impedance values for each test load. The computer system (240) then predicts a phase value for each load using each respective load impedance value. The computer system (240) back calculates impedance loss model parameters including a source impedance parameter and a leakage impedance parameter based upon the voltage and current sensor data, the predicted phase values, and the impedance values of the test loads.1/13 100 102 104 -1 q--110 ELECTROSURGICAL --- 118 GENERATOR t 6120 106 122 116 --112 130 128 132 134 -. 124 13612 FIG. 1
