公开(公告)号：US07191698B2

公开(公告)日：2007-03-20

申请号：US10406993

申请日：2003-04-03

申请人： Leonard J. Bond ,  Aaron A. Diaz ,  Kayte M. Judd ,  Richard A. Pappas ,  William C. Cliff ,  David M. Pfund ,  Gerald P. Morgen

发明人： Leonard J. Bond ,  Aaron A. Diaz ,  Kayte M. Judd ,  Richard A. Pappas ,  William C. Cliff ,  David M. Pfund ,  Gerald P. Morgen

IPC分类号： A23L1/00

CPC分类号： H05B6/687 ,  F24C7/08

摘要： A method and apparatus are described for determining the doneness of food during a cooking process. Ultrasonic signal are passed through the food during cooking. The change in transmission characteristics of the ultrasonic signal during the cooking process is measured to determine the point at which the food has been cooked to the proper level. In one aspect, a heated fluid cooks the food, and the transmission characteristics along a fluid-only ultrasonic path provides a reference for comparison with the transmission characteristics for a food-fluid ultrasonic path.

摘要翻译： 描述了一种用于在烹饪过程中确定食物的不适度的方法和装置。 超声波信号在烹饪过程中通过食物。 测量烹调过程中超声波信号的传输特性的变化，以将食物烹调的点确定到适当的水平。 在一个方面，加热的流体烹饪食物，并且沿着仅流体超声波路径的传输特性提供了用于与食物流体超声波路径的传输特性进行比较的参考。

公开(公告)号：US06925870B2

公开(公告)日：2005-08-09

申请号：US10668853

申请日：2003-09-23

申请人： Richard A. Pappas ,  Don S. Daly ,  Walter C. Weimer ,  James L. Buelt ,  Kayte M. Judd ,  Scott K. Cooley

发明人： Richard A. Pappas ,  Don S. Daly ,  Walter C. Weimer ,  James L. Buelt ,  Kayte M. Judd ,  Scott K. Cooley

IPC分类号： G01F23/296 ,  G01F23/00

CPC分类号： G01F23/2962

摘要： A fluid level monitoring system 20 includes an ultrasonic interrogation device 30 acoustically coupled to a sidewall 25 of container 22 and produces ultrasound that travels through the liquid 24 along a transverse path 32 and an inclined path 34. The liquid level is determined by calculating the times-of-flight for the received return signals, where the return signal along the inclined path 34 reflects from the intersection 27 of the liquid level 28 and a sidewall 23. The device 30 can be a multi-element transducer having a plurality of transducer elements at different angular orientations in a common housing.

摘要翻译： 液位监视系统20包括声耦合到容器22的侧壁25的超声波询问装置30，并产生沿着横向路径32和倾斜路径34行进通过液体24的超声波。 通过计算接收的返回信号的飞行时间来确定液位，其中沿着倾斜路径34的返回信号从液位28和侧壁23的交点27反射。 装置30可以是具有在公共壳体中以不同角度取向的多个换能器元件的多元件换能器。