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1. 发明授权

US06234023B1 Ultrasonic monitoring technique for containers and apparatus to carry it out 失效
标题翻译：超声波监测技术用于集装箱和装置进行
公开(公告)号：US06234023B1
公开(公告)日：2001-05-22
申请号：US09068244
申请日：1998-10-19
申请人： Andrew P. Collins , Steven M Dixon , Christopher Edwards , Stuart B Palmer
发明人： Andrew P. Collins , Steven M Dixon , Christopher Edwards , Stuart B Palmer
IPC分类号： G01N2918
CPC分类号： B67C3/284 , G01F23/2962 , G01F23/2968 , G01N29/2418 , G01N2291/011 , G01N2291/02836 , G01N2291/02854 , G01N2291/0421 , G01N2291/0422 , G01N2291/048 , G01N2291/102
摘要： The invention provides an apparatus and method for fill level monitoring in which the height of contents in a container (10) is monitored. The apparatus comprises an ultrasound reciever (30) and signal processing means (50-56) adapted to receive signals from the receiver, the arrangement being such that the signal processing means (50-56) identifies a first signal (32), in use, which is representative of a wavefront (26) transmitted through the contents of the container (10) independently of the height of the contents in the container (10), and a second signal (34) that is representative of a wavefront (24) that is reflected from the interface (22) between the surface of the contents in the container (10) and the environment above the contents, and in which the signal processing means (50-56) uses the difference in travel time for the two wavefronts (24, 26) to provide a measurement of the level of the contents in the container (10). A plasma generation system comprising a pulsed laser (99) and a target (101) in front of the container (102) is also disclosed, the plasma (103) creating ultrasound in the container (102).
摘要翻译：本发明提供了一种用于填充液位监测的装置和方法，其中监测容器（10）中的内容物的高度。该装置包括适于从接收机接收信号的超声波接收器（30）和信号处理装置（50-56），该装置使得信号处理装置（50-56）在使用中识别第一信号（32），其代表与容器（10）中的内容物的高度无关地透过容器（10）的内容物的波前（26），以及代表波前（24）的第二信号（34）从容器（10）中的内容物的表面与内容物上方的环境之间的界面（22）反射，并且其中信号处理装置（50-56）使用两个波前的行进时间差（24,26），以提供容器（10）中的内容物的水平的测量。还公开了一种在容器（102）前面包括脉冲激光（99）和靶（101）的等离子体产生系统，等离子体（103）在容器（102）中产生超声波。

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