公开(公告)号：US5568449A

公开(公告)日：1996-10-22

申请号：US307292

申请日：1994-09-02

申请人： Steven P. Rountree ,  Samir W. Berjaoui

发明人： Steven P. Rountree ,  Samir W. Berjaoui

IPC分类号： G01F23/296 ,  G01F25/00 ,  G01M3/24 ,  G01S7/52 ,  G01S7/521 ,  G01S7/527 ,  G01S15/88 ,  G01S15/42

CPC分类号： G01S7/527 ,  G01F23/2962 ,  G01F23/2968 ,  G01F25/0061 ,  G01M3/24 ,  G01S7/52004 ,  G01S7/521 ,  G01S15/88 ,  G01S2007/52014 ,  Y10S367/902 ,  Y10S367/908

摘要： An ultrasonic probe utilized in an ultrasonic ranging system for determining fluid volume and/or fluid leakage in an underground storage tank, as well as monitoring fluid inventory, is provided which is characterized by (i) having its calibration reflectors positioned whereby each of the secondary echo packets formed by the calibration reflectors of the ultrasonic probe becomes imbedded into the trailing edge of a primary echo packet of another calibration reflector or to cause its secondary echo packet to be detected by the transducer after the transducer has detected a primary echo packet associated with the fluid surface, (ii) each of the calibration reflectors being positioned perpendicular to and offset from the longitudinal axis of the probe body, (iii) an ultrasonic sound wave dampening member fixedly positioned in the probe body between the transducer assembly and the tank bottom, the wave dampening member having a surface facing toward the transducer assembly wherein the surface is configured to dampen sound waves striking the surface before the sound waves are reflected from the surface, or (iv) the transducer assembly comprising a transducer body in which is housed a piezoelectric crystal oriented perpendicular to the longitudinal axis of the prove body, wherein the transducer body is structured to dampen selected ultrasonic sound waves which emanate from the crystal.

摘要翻译： 提供了用于超声波测距系统中用于确定地下储罐中的流体体积和/或流体泄漏以及监测流体存储的超声波探头，其特征在于：（i）具有其校准反射器，其中每个次级 由超声波探头的校准反射器形成的回波包被嵌入到另一个校准反射器的主回波包的后缘中，或者在换能器检测到与第二回波包相关联的主回波包之后由换能器检测其次级回波包 所述流体表面，（ii）每个所述校准反射器定位成垂直于所述探针主体的纵向轴线并且偏离所述探针主体的纵向轴线;（iii）超声波波浪阻尼构件，其固定地定位在所述探针主体中的所述换能器组件和所述罐底部之间 ，所述波浪阻尼构件具有面向所述换能器组件的表面，其中所述surfa ce被配置为在声波从表面反射之前抑制撞击表面的声波，或者（iv）换能器组件包括其中容纳有垂直于证明体的纵向轴线定向的压电晶体的换能器体，其中 换能器体被构造成阻尼从晶体发出的选定的超声波。