Search International and National Patent Collections

1. (WO2013159815) HEATING OF DIELECTRIC LOADS

Pub. No.:    WO/2013/159815    International Application No.:    PCT/EP2012/057552
Publication Date: Fri Nov 01 00:59:59 CET 2013 International Filing Date: Thu Apr 26 01:59:59 CEST 2012
IPC: H05B 6/62
Applicants: ANTRAD MEDICAL AB
WESTIN, Pierre
EKEMAR, Lars
Inventors: WESTIN, Pierre
EKEMAR, Lars
Title: HEATING OF DIELECTRIC LOADS
Abstract:
A dielectric load (115) is heated from an initial temperature level to a desired final temperature level by using alternating electromagnetic energy from an energy source (130), which energy ineludes a predefined set of spectral components. A cavity (140) contains the dielectric load (115), and an antenna (150) transmits an electromagnetic field through the dielectric load (115). Mechanical processing means (160) cause a relative movement between the dielectric load (115) and the at least one antenna (150), thus varying a spatial relationship between the alternating electromagnetic field and the dielectric load (115). As a result, the electromagnetic energy is distributed relatively evenly in the dielectric load (115). Sensor means (171, 173) register at least one parameter (ml, m2, m3) indicative of a temperature level of the dielectric load (115); and based thereon, a control unit (180) produces a power control signal (PCTRL) controlling an amount of energy transmitted through the dielectric load (115).