公开(公告)号：US4487065A

公开(公告)日：1984-12-11

申请号：US473144

申请日：1983-03-07

申请人： John A. Carlin ,  William G. Mesch ,  Randall D. Thompson ,  Steven A. Beard ,  Tracy R. Stephens

发明人： John A. Carlin ,  William G. Mesch ,  Randall D. Thompson ,  Steven A. Beard ,  Tracy R. Stephens

IPC分类号： G01F23/296 ,  G01F23/28 ,  G01S15/00

CPC分类号： G01F23/296 ,  Y10S367/908

摘要： A storage tank level monitoring apparatus and method for determining fluid levels in a storage tank. The apparatus of the present invention includes a magnet coated with rubber for holding a pivotally mounted housing to the interior of the storage tank and an ultrasonic transducer contained within the housing for generating acoustic pulses and for receiving reflections of the acoustic pulses for producing an analog signal proportional to the reflections, a string carrying a number of reference disks vertically oriented below the housing for producing a series of reflected acoustic signals from each reference disk, and a processor connected to the ultrasonic transducer for activating the transducer and for analyzing the reflected pulses for calibrating the apparatus for environmental changes in the atmosphere above the stored fluid and for determining the level of the stored fluid in the tank. The method of the present invention includes the steps of receiving reflected pulses from each reference disk only during certain window time intervals and to calibrate the system by adjusting for environmental conditions between the transducer and the fluid level.

摘要翻译： 一种用于确定储罐中的液位的储罐液位监视装置和方法。 本发明的装置包括涂覆有橡胶的磁体，用于将可枢转地安装的壳体保持在储罐的内部，以及包含在壳体内的超声波换能器，用于产生声脉冲并用于接收用于产生模拟信号的声脉冲的反射 与反射成比例的是一串带有垂直定向在壳体下面的多个参考盘的串，用于产生一系列来自每个参考盘的反射声信号，以及连接到超声换能器的处理器，用于激活换能器并用于分析反射脉冲 校准用于在存储的流体上方的大气中的环境变化并且用于确定储存器中的储存流体的水平的装置。 本发明的方法包括仅在某些窗口时间间隔期间从每个参考盘接收反射脉冲并且通过调整换能器与液位之间的环境条件来校准系统的步骤。