The invention includes a toploading weighing instrumentality which determines loss on drying by a cylindrical microwave. The cylindrical cavity of the microwave includes a power supply, a magnetron, a power module operatively coupled between the power supply and the magnetron for driving the magnetron,...http://www.google.com.au/patents/US7148455?utm_source=gb-gplus-sharePatent US7148455 - Microwave moisture analyzer: apparatus and method
