| 摘要 |
A microwave oven test device for testing the power output or heating performance of a microwave oven comprises a thermometer having a strip (4) of liquid crystal areas (6), each activated to change colour at a characteristic temperature. A slidable cursor (8) carries a scale (12) indicating microwave oven power outputs or heating performances corresponding to temperatures indicated on the liquid crystal strip. A preferred device has a liquid crystal strip on either side of a card thermometer and a cursor carrying two scales. A first scale indicates power output and lies adjacent to the strip on a first side of the card and the second scale indicates heating performance and lies adjacent to the liquid crystal strip on the second side of the card. The device is sold as a kit with a bowl with 350ml and 1 litre graduations. 1 litre of water is placed in the bowl, stirred with the strip, the beginning of the scale aligned with the temperature change point, the water is heated for 60 seconds, stirred again and the heating power output scale read at the point nearest the colour change. <IMAGE> |
