An accurate detection of the effective values of electric voltage and current from high frequency power generators is a precondition for the development of smart electrotomes. In this light, an energy detection system based on personal computer (PC) is developed hereby. It senses voltage and current in isolation from generators with transformers, and then the measured values are amplified, filtered, transformed into single-ended signals and converted to RMS. The detected signals are transformed into digital signals through Data Acquisition Card (DAQ) and the data are processed with quadratic fit in Labview. Finally, the controller completes constant power output. The experiment results indicate that the energy detection system can measure the output parameters precisely and the controller can achieve constant power control.
Cite this paper
Yan, S. , Zhou, Y. , Yan, B. , Li, D. , Song, C. and Chang, Z. (2013) The electrical parameters measurement system for electrotome output based on Labview. Journal of Biomedical Science and Engineering
, 661-668. doi: 10.4236/jbise.2013.66081
 Friedrichs, D.A., Erickson, W. and Gilbert, J. (2012) Anew dual current-mode controller improves power regulation in electrosurgical generators. IEEE Transactions on Biomedical Circuits and Systems, 6, 39-44.
 Goble C CO. (2001) Electrosurgery system and method. Patent No. 6228081.
 Roby, K., Varjan, S. and Stascavage, K. (2011) A novel electrocautery device to increase coagulation rate and reduce thermal damage. Bioengineering Conference (NEBEC), New York, 2011, 1-2.
 Dodde, R.E., Gee, J.S. and Geiger, J.D. (2012) Monopolar electrosurgical thermal management for minimizing tissue damage. IEEE Transactions on Biomedical Engineering, 59, 167-173. doi:10.1109/TBME.2011.2168956
 ANALOG. High Precision, Wideband RMS-to-DC Converter. http://www.analog.com/
 Zhou, Y. (2010) A simple over-sampling system for ECG detection based on labview. Microcomputer Information, 26, 18-22.
 National Instruments. Low-Cost M Series Multifunction Data Acquisition. http://sine.ni.com
 Li, G., Zhang, L.J. and Li, L. (2008) Research of bioelectricity signal detection based on over-sampling. Acta Electronica Sinica, 36, 1467
 Zhou, Y., Xu, W.D., Cui, X.X., Yan, S.J. and Song, C.L. (2011) A new high-frequency electrotome output detection system. IEEE Biomedical Engineering and Informatics, Shanghai, 2011, 1019-1022.
 Belik, D.V. (2001) Principal of design of an impedance electrosurgical apparatus for reliable ablation of malignnant tumors and pathological biological tissue. Biomedical Engineering, 35, 23-25.