-
公开(公告)号：US07318355B2
公开(公告)日：2008-01-15
申请号：US11361636
申请日：2006-02-24
申请人： Hiroaki Ishikawa
发明人： Hiroaki Ishikawa
IPC分类号： G01F1/66
摘要： The invention provides an ultrasonic flow velocity meter that can measure the flow velocity of a fluid over a wide range of degree of contamination with high degree of accuracy. The ultrasonic flow velocity meter includes a mounting base to be fixed to the outside of a conduit line in which the fluid to be measured flows, the mounting base having a mounting surface formed obliquely with respect to a longitudinal axis of the conduit line, a sending transducer fixed to the mounting base for emitting an ultrasonic wave to the interior of the fluid, a receiving transducer fixed to the mounting base and receiving the reflected ultrasonic wave having subjected to Doppler shift and emitted from the interior of the fluid, and a calculating unit for calculating the flow velocity of the fluid from the amount of the Doppler shift of the reflected wave received by the receiving transducer. The sending transducer and the receiving transducer are being arranged so that an axis of sending and an axis of reception are coincided with respect to each other, continuously send the ultrasonic wave and continuously receive the ultrasonic wave, respectively.
摘要翻译： 本发明提供了一种超声波流速计，其能够以高精确度在宽范围的污染程度上测量流体的流速。 超声波流量计包括固定在要测量流体流过的导管线的外侧的安装基座，安装基座具有相对于导管线的纵向轴线倾斜地形成的安装表面， 传感器固定到安装基座，用于向流体的内部发射超声波;固定到安装基座的接收换能器，并且接收经受多普勒频移并从流体内部发射的反射超声波;以及计算单元 用于从接收换能器接收的反射波的多普勒频移量计算流体的流速。 发送换能器和接收换能器被布置成使得发送轴和接收轴相互重合，连续地发送超声波并连续地接收超声波。
-
公开(公告)号：US20060174717A1
公开(公告)日：2006-08-10
申请号：US11361636
申请日：2006-02-24
申请人： Hiroaki Ishikawa
发明人： Hiroaki Ishikawa
IPC分类号： G01F1/66
摘要： The invention provides an ultrasonic flow velocity meter that can measure the flow velocity of a fluid over a wide range of degree of contamination with high degree of accuracy. The ultrasonic flow velocity meter includes a mounting base to be fixed to the outside of a conduit line in which the fluid to be measured flows, the mounting base having a mounting surface formed obliquely with respect to a longitudinal axis of the conduit line, a sending transducer fixed to the mounting base for emitting an ultrasonic wave to the interior of the fluid, a receiving transducer fixed to the mounting base and receiving the reflected ultrasonic wave having subjected to Doppler shift and emitted from the interior of the fluid, and a calculating unit for calculating the flow velocity of the fluid from the amount of the Doppler shift of the reflected wave received by the receiving transducer. The sending transducer and the receiving transducer are being arranged so that an axis of sending and an axis of reception are coincided with respect to each other, continuously send the ultrasonic wave and continuously receive the ultrasonic wave, respectively.
摘要翻译： 本发明提供了一种超声波流速计，其能够以高精确度在宽范围的污染程度上测量流体的流速。 超声波流量计包括固定在要测量流体流过的导管线的外侧的安装基座，安装基座具有相对于导管线的纵向轴线倾斜地形成的安装表面， 传感器固定到安装基座，用于向流体的内部发射超声波;固定到安装基座的接收换能器，并且接收经受多普勒频移并从流体内部发射的反射超声波;以及计算单元 用于从接收换能器接收的反射波的多普勒频移量计算流体的流速。 发送换能器和接收换能器被布置成使得发送轴和接收轴相互重合，连续地发送超声波并连续地接收超声波。
-
公开(公告)号：US20050097968A1
公开(公告)日：2005-05-12
申请号：US10965158
申请日：2004-10-14
摘要： An ultrasonic flow meter for measuring a flow rate in a flow path is provided having ultrasonic sensors each of which includes a semicircular or substantially circular disk shaped transducer. Such transducers are detachably mountable on an envelope of the flow path. The thickness of the ultrasonic sensors in the direction of the length of the flow path is reduced to improve a detection resolution. A plurality of the ultrasonic sensors are mounted on the flow path while keeping a predetermined distance therebetween in a length direction of the flow path, so that the flow rate can be measured from the difference of propagation times of ultrasonic waves between the ultrasonic sensors.
摘要翻译： 提供了一种用于测量流路中的流量的超声波流量计，其具有超声波传感器，每个超声波传感器包括半圆形或大致圆形的盘形换能器。 这种换能器可拆卸地安装在流路的外壳上。 超声波传感器在流路长度方向上的厚度减小以提高检测分辨率。 多个超声波传感器安装在流路上，同时在流路的长度方向上保持预定的距离，从而可以根据超声波传感器之间的超声波的传播时间差来测量流量。
-
公开(公告)号：US07069793B2
公开(公告)日：2006-07-04
申请号：US10965158
申请日：2004-10-14
IPC分类号： G01F1/20
摘要： An ultrasonic flow meter for measuring a flow rate in a flow path is provided having ultrasonic sensors each of which includes a semicircular or substantially circular disk shaped transducer. Such transducers are detachably mountable on an envelope of the flow path. The thickness of the ultrasonic sensors in the direction of the length of the flow path is reduced to improve a detection resolution. A plurality of the ultrasonic sensors are mounted on the flow path while keeping a predetermined distance therebetween in a length direction of the flow path, so that the flow rate can be measured from the difference of propagation times of ultrasonic waves between the ultrasonic sensors.
摘要翻译： 提供了一种用于测量流路中的流量的超声波流量计，其具有超声波传感器，每个超声波传感器包括半圆形或大致圆形的盘形换能器。 这种换能器可拆卸地安装在流路的外壳上。 超声波传感器在流路长度方向上的厚度减小以提高检测分辨率。 多个超声波传感器安装在流路上，同时在流路的长度方向上保持预定的距离，从而可以根据超声波传感器之间的超声波的传播时间差来测量流量。
-
-
-
搜索结果
4 条记录 (耗时 0.011 秒)
