公开(公告)号：US06631097B2

公开(公告)日：2003-10-07

申请号：US09752434

申请日：2001-01-03

申请人： Tyan Khak Su

发明人： Tyan Khak Su

IPC分类号： G01F23296

CPC分类号： G01S15/101 ,  G01C13/008 ,  G01F23/2962 ,  G01F23/2968 ,  Y10S367/902 ,  Y10S367/908

摘要： A sonic water level measuring method and system for mounting a wave-guide tube for measuring a water level in a reservoir, a river, etc. generating sonic pulses at the upper of the wave-guide tube, measuring transit times that it takes for the sonic pulses to transit from an original point to a water surface through air medium and transit back to the original point after being reflected on the water surface and multiplying the transit times by a sound velocity to compute a water level is configured to measure the sound velocity using the times that it takes for the sonic pulse to transit in two intervals in order to exactly measure the sound velocity that is changed according to the changing of an air temperature, pressure and component in the wave-guide tube and then measure the water level considering an arithmetical average value of the sound velocities measured as a sound velocity in the wave-guide tube.

摘要翻译： 一种声波水位测量方法和系统，用于安装用于测量储存器，河流中的水位的波导管，在波导管的上部产生声波脉冲，测量所需波长的传播时间 声波脉冲通过空气介质从原始点传递到水面，并在水面上反射后返回到原始点，并将传播时间乘以声速计算水位，以便测量声速 使用声音脉冲在两个间隔中传输的时间，以便精确测量根据导波管中空气温度，压力和分量变化而改变的声速，然后测量水位 考虑在波导管中作为声速测量的声速的算术平均值。

公开(公告)号：US06435024B1

公开(公告)日：2002-08-20

申请号：US09675413

申请日：2000-09-29

申请人： Victor L. Alvarez ,  John C. Fournier

发明人： Victor L. Alvarez ,  John C. Fournier

IPC分类号： G01F23296

CPC分类号： G01F23/2961

摘要： A method for determining a level of particulate material in a particulate material collection vessel and a level indicator particulate material collection vessel.

摘要翻译： 一种用于确定颗粒材料收集容器和液位指示剂颗粒材料收集容器中的颗粒物质水平的方法。