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1. 发明专利

JP2010156599A Ultrasonic flowmeter 审中-公开
标题翻译：超声波流量计
公开(公告)号：JP2010156599A
公开(公告)日：2010-07-15
申请号：JP2008334698
申请日：2008-12-26
申请人： Ricoh Elemex Corp , リコーエレメックス株式会社
发明人： SEKINE YOSHIHIRO
IPC分类号： G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic flowmeter preventing lowering of an S/N ratio of detection on the occasion of measurement of an arrival time, by improving asymmetry of a receiving sensitivity characteristic for an ultrasonic beam, which is produced between forward propagation time and reverse propagation time in its ultrasonic transducer, and contributing to enhancement of the accuracy of flow rate measurement. SOLUTION: When a driving signal is output from a transmitting part 2, driving pulse signals each having five pulses are input simultaneously to the gates of MOSFETs of a center drive switch circuit 26VC and a peripheral drive switch circuit 26VS. A driving voltage of a center polarization potential VC is applied as a square wave having five rectangular pulses, from the center switch circuit 26VC to a center element part 131C (center drive electrode 133C), and a driving voltage of a peripheral polarization potential VS is applied as a square wave having five rectangular pulses from the peripheral switch circuit 26VS to peripheral element parts 131S (peripheral drive electrodes 133S). As shown in the operation timing chart, these driving voltages are applied in phase, while satisfying "the peripheral polarization potential VS>the center polarization potential VC". COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：提供一种防止在到达时间的测量的情况下降低S / N比的超声波流量计，通过改善超声波束的接收灵敏度特性的不对称性，其超声波换能器中的正向传播时间和反向传播时间，有助于提高流量测量精度。解决方案：当从发送部分2输出驱动信号时，每个具有五个脉冲的驱动脉冲信号同时输入到中心驱动开关电路26VC和外围驱动开关电路26VS的MOSFET的栅极。将中心极化电位VC的驱动电压作为从中心开关电路26VC到中心元件部131C（中心驱动电极133C）的具有五个矩形脉冲的方波施加，周边极化电位VS的驱动电压为作为具有从外围开关电路26VS到外围元件部131S（外围驱动电极133S）的五个矩形脉冲的方波施加。如操作时序图所示，这些驱动电压同时施加，同时满足“外围极化电位VS>中心极化电位VC”。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2010145167A Ultrasonic flow meter 审中-公开
标题翻译：超声波流量计
公开(公告)号：JP2010145167A
公开(公告)日：2010-07-01
申请号：JP2008321018
申请日：2008-12-17
申请人： Ricoh Elemex Corp , リコーエレメックス株式会社
发明人： SEKINE YOSHIHIRO
IPC分类号： G01F1/66 , H04R17/00
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic flow meter that can improve measuring precision in such a manner that asymmetric property of a reception sensitivity characteristic of an ultrasonic beam generated in an ultrasonic transducer between forward propagation and backward propagation is improved or influence of a flow velocity distribution in a direction of a flow path short side is absorbed. SOLUTION: A polarizing operation is performed so as to make a peripheral polarization voltage VS of a peripheral element part 131S to be greater than a central polarization voltage VC of a central element part 131C (VS>VC). An output intensity of the ultrasonic beam is regulated such that the intensity of the peripheral element part 131S is greater than that of the central element part 131C in the direction of the flow path short side S (ES>EC). Since an average mesh interval kC of a central mesh 42C is set to be greater than an average mesh interval kS of a peripheral mesh 42S in the direction of the flow path short side S (kC>kS), a transmission factor γC of the central mesh 42C becomes greater than a transmission factor γS of the peripheral mesh 42S (γC>γS). The beam intensity after passing through the mesh 42 is regulated so as to reduce a difference in an output intensity of the ultrasonic beam output from an ultrasonic wave radiation face RP. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种超声波流量计，其能够提高测量精度，使得在正向传播和反向传播之间在超声波换能器中产生的超声波束的接收灵敏度特性的对称性提高或影响吸收流路短边方向的流速分布。解决方案：进行极化操作，以使外围元件部分131S的外围极化电压VS大于中心元件部分131C的中心极化电压VC（VS> VC）。调节超声波束的输出强度，使得周边元件部131S的强度大于中心元件部131C在流路短路S的方向（ES> EC）的强度。由于中心网42C的平均网格间隔kC被设定为大于在流路短路S（kC> kS）的方向上的外围网格42S的平均网格间隔kS，所以中央网格42C的中心网格42c的传输因子γC 网格42C变得大于外围网格42S（γC>γS）的透射因子γS。通过网眼42的光束强度被调整为减小从超声波辐射面RP输出的超声波束的输出强度的差异。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2009276131A Ultrasonic flowmeter 审中-公开
标题翻译：超声波流量计
公开(公告)号：JP2009276131A
公开(公告)日：2009-11-26
申请号：JP2008126043
申请日：2008-05-13
申请人： Ricoh Elemex Corp , リコーエレメックス株式会社
发明人： SEKINE YOSHIHIRO
IPC分类号： G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic flowmeter, capable of measuring a flow rate with high accuracy, as well as, with high efficiency by a transmitting-receiving vibrator, and of being consitutted, simply by shortening the approach section in front of the transmitting-receiving vibrator.
SOLUTION: Two board-like partition walls 40 are arranged along a flow direction in a linear inertmediate channel 21a, and an opening width W, which is a long side L of the linear middle channel 21a, is divided in the width direction, to form three-layered divided channels 21a' having each equal opening width W'. One circular communication hole 41 is formed, penetrating in the width direction corresponding to a measuring line of an ultrasonic beam on each partition wall 40, and each thin plate-shaped or sheet-shaped adjustment net 42, constituted of a reticulated material, is overlaid on each communication hole 41.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种超声波流量计，其能够以高精度测量流量，以及通过发送接收振动器以高效率测量，并且被简单地缩短了接近部分的接近部分发送接收振动器前面。解决方案：在线性惰性通道21a中沿着流动方向布置两个板状分隔壁40，并且作为线性中间通道21a的长边L的开口宽度W在宽度方向上分开形成具有各开口宽度W'的三层分割通道21a'。形成一个圆形连通孔41，其在与每个分隔壁40上的超声波束的测量线相对应的宽度方向上穿透，并且覆盖由网状材料构成的每个薄板状或片状调节网42 每个通讯孔41上。（C）2010，JPO＆INPIT

4. 发明专利

JP2009264906A Flow meter 审中-公开
标题翻译：流量计
公开(公告)号：JP2009264906A
公开(公告)日：2009-11-12
申请号：JP2008114311
申请日：2008-04-24
申请人： Ricoh Elemex Corp , リコーエレメックス株式会社
发明人： FURUSAWA SEIICHI , SEKINE YOSHIHIRO
IPC分类号： G01F1/00 , G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide a flow meter capable of easily equalizing and symmetrizing flow velocity distribution by devising a sectional shape of a flow passage without arranging a flow straightening means and capable of precisely measuring the flow rate over a wide range from a laminar flow region to a turbulent flow region.
SOLUTION: A diversion part 211 is shaped in a curved form at outer and inner circumferential sides continuous to an exit side terminal part of an inlet side connection flow passage 21b directed substantially downward so that the flow of a gas is diverted by 90°. The diversion part 211 includes a reduction part 211a in which an opening height of the flow passage decreases toward a downstream side in the flow direction. An adjustment part 212 is formed so as to be connected to and continuous to the exit side terminal part of the diversion part 211, and arranges the gas flow direction substantially in the horizontal direction. A flow passage height enlargement part 213 includes an increasing part 213a in which the opening height of the flow passage changes and increases in a step shape in the height direction at the outer and inner circumferential sides, continuous to the adjustment part 212, and is connected to a straight intermediate flow passage 21a (ultrasonic measurement section 21a1).
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够通过设计流路的截面形状而容易地均衡和对称流量计的流量计，而不设置流动矫直装置，并能够精确地测量在宽范围内的流量到湍流区域的层流区域。解决方案：转向部分211在与基本上向下指向的入口侧连接流动通道21b的出口侧端子部分连续的外周侧和内周侧成形为弯曲形状，使得气体的流动被转向90° °。分流部211包括其中流路的开口高度朝向流动方向的下游侧减小的减速部211a。调整部212形成为与分流部211的出口侧端子部连接并连续，并且将气流方向大致排列在水平方向。流路高度扩大部213包括与调节部212连续的流路的开口高度变化并且在外周侧和内周侧的高度方向上的台阶形状的增加部213a，到直的中间流路21a（超声波测量部21a1）。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2009031136A Ultrasonic liquid detector 审中-公开
标题翻译：超声波液体检测仪
公开(公告)号：JP2009031136A
公开(公告)日：2009-02-12
申请号：JP2007195801
申请日：2007-07-27
申请人： Ricoh Elemex Corp , リコーエレメックス株式会社
发明人： SEKINE YOSHIHIRO
IPC分类号： G01F23/28
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic liquid detector of low power consumption for determining simply in a short time whether liquid exists or not. SOLUTION: This liquid detector 1 transmits an ultrasonic wave to a measured system by an ultrasonic wave transmission part 2 while changing its frequency to any of a plurality of set values and is used to determine whether liquid exists or not in a container at a measurement position based on a set of measurement results of received amplitudes at respective frequencies. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种低功耗的超声波液体检测器，用于简单地在短时间内确定液体是否存在。解决方案：该液体检测器1通过超声波发送部件2将超声波发送到测量系统，同时将其频率改变为多个设定值中的任何一个，并且用于确定液体是否存在于容器中基于在各个频率处的接收振幅的测量结果的集合的测量位置。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2009031135A Liquid detection unit and container with liquid detection function 审中-公开
标题翻译：液体检测单元和液体检测功能的容器
公开(公告)号：JP2009031135A
公开(公告)日：2009-02-12
申请号：JP2007195800
申请日：2007-07-27
申请人： Ricoh Elemex Corp , リコーエレメックス株式会社
发明人： SEKINE YOSHIHIRO
IPC分类号： G01F23/28
摘要： PROBLEM TO BE SOLVED: To provide a liquid detection unit for highly accurately detecting liquid in a container with its outer surface coated, and a container with a liquid detection function. SOLUTION: This liquid detection unit 100 is mounted on a wall-part outer surface 5a of the container 5, with the container 5 with the liquid L stored therein used as a system to be measured. This detection unit 100 is equipped with an ultrasonic output part 1 capable of outputting an ultrasonic beam, an acoustic impedance matching layer 2 sticking fast to an ultrasonic transmission surface 1a of the output part 1, and an intermediate layer 3 of a predetermined thickness between a resin coating 4 applied to the outer surface 5a of the container 5 and the matching layer 2, with the intermediate layer 3 having acoustic impedance equal to or higher than the acoustic impedance of the resin coating 4 and lower than both the acoustic impedance of the container 5 and that of the matching layer 2. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种液体检测单元，用于高精度地检测其外表面涂覆的容器中的液体，以及具有液体检测功能的容器。解决方案：将液体检测单元100安装在容器5的壁部外表面5a上，其中储存有液体L的容器5用作要测量的系统。该检测单元100配备有能够输出超声波束的超声波输出部1，紧贴于输出部1的超声波传输面1a的声阻抗匹配层2和预定厚度的中间层3 施加到容器5的外表面5a和匹配层2的树脂涂层4，其中声层阻抗等于或高于树脂涂层4的声阻抗并且低于容器的声阻抗 5和匹配层2。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2008268090A Ultrasonic flowmeter 审中-公开
标题翻译：超声波流量计
公开(公告)号：JP2008268090A
公开(公告)日：2008-11-06
申请号：JP2007113642
申请日：2007-04-24
申请人： Ricoh Elemex Corp , リコーエレメックス株式会社
发明人： SEKINE YOSHIHIRO
IPC分类号： G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic flowmeter capable of estimating a flow velocity distribution state pattern, even if flow velocity distribution changes in a fluid flow zone, and calculating the flow rate of a fluid to be measured based on the flow velocity distribution pattern, without providing a partitioning member etc. inside a passage.
SOLUTION: The ultrasonic flowmeter is equipped with the passage 30 where the fluid to be measured flows, a pair of ultrasonic transducers 10, 20 arranged at positions facing each other with the passage 30 between obliquely, and a flow rate calculation section 13 for calculating the flow rate of the fluid to be measured based on propagation time of an ultrasonic wave transmitted and received with the ultrasonic transducers 10, 20. The ultrasonic transducers 10, 20 transmit and receive the ultrasonic wave in each piezoelectric element block divided in their thickness direction. Based on propagation time of the ultrasonic wave transmitted and received in each piezoelectric element block or a flow velocity calculated from the propagation time, the calculation section 13 estimates flow velocity distribution, and calculates the flow rate of the fluid to be measured from the estimated flow velocity distribution.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：即使流体流动区域中的流速分布发生变化，也可以基于流量来计算流体的流量，能够提供能够估计流量分布状态模式的超声波流量计速度分布图案，而不在通道内设置分隔构件等。解决方案：超声波流量计装备有要测量的流体流过的通道30，一对超声波换能器10,20，布置在彼此相对的位置，通道30在倾斜之间，流量计算部13 用于根据用超声波换能器10,20发送和接收的超声波的传播时间来计算要测量的流体的流量。超声波换能器10,20在每个压电元件块中分开的超声波发送和接收超声波厚度方向。基于在每个压电元件块中发送和接收的超声波的传播时间或从传播时间计算的流速，计算部13估计流速分布，并从估计的流量计算待测量的流体的流量速度分布。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2007139607A Sensor mounting structure of ultrasonic flowmeter 有权
标题翻译：超声波流量计传感器安装结构
公开(公告)号：JP2007139607A
公开(公告)日：2007-06-07
申请号：JP2005334629
申请日：2005-11-18
申请人： Ricoh Elemex Corp , リコーエレメックス株式会社
发明人： FURUSAWA SEIICHI , SEKINE YOSHIHIRO
IPC分类号： G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide a sensor mounting structure of an ultrasonic flowmeter capable of acquiring stable measurement accuracy and mounting accuracy, wherein a surface elastic wave hardly functions as a disturbance factor even if a measuring condition, a mounting condition or the like is changed.
SOLUTION: A transmitting/receiving vibrator 23b is stored in a cylindrical storage holder 31 opened in the front and back directions, and the storage holder 31 is inserted into a storage hole 22b formed penetratingly through the wall part of a passage 21a. A vibration plane 23c vibrating when the transmitting/receiving vibrator 23b transmits or receives an ultrasonic wave is arranged on the front side in the insertion direction so as to face obliquely to the passage 21a. Four pawl-shaped inside projection parts 31b are swelled and formed dispersedly at 90° intervals in the circumferential direction on the inner circumferential surface 31a of the storage holder 31. The inside projection parts 31b are in contact respectively with the outer circumferential surface 23d of the transmitting/receiving vibrator 23b, to thereby form a plurality of contact parts having respectively, for example, a linear fine contact domain.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：为了提供能够获得稳定的测量精度和安装精度的超声波流量计的传感器安装结构，其中即使测量条件，安装条件或安装条件，表面弹性波也几乎不起作为干扰因素的作用喜欢改变。解决方案：发送/接收振动器23b存储在沿前后方向开口的圆筒形存储保持器31中，并且存储保持器31插入穿过通道21a的壁部分形成的存储孔22b中。当发送/接收振动器23b发送或接收超声波时振动的振动平面23c被布置在插入方向的前侧，以便面对通道21a。四个棘爪形的内部突出部分31b在存储保持器31的内周面31a上沿圆周方向以90°的间隔分散地形成并分散形成。内侧突出部分31b分别与发送/接收振动器23b，从而形成分别具有例如线性微细接触区域的多个接触部分。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2007139519A Ultrasonic flowmeter 有权
标题翻译：超声波流量计
公开(公告)号：JP2007139519A
公开(公告)日：2007-06-07
申请号：JP2005331984
申请日：2005-11-16
申请人： Ricoh Elemex Corp , リコーエレメックス株式会社
发明人： SEKINE YOSHIHIRO , HIRANO SHINJI
IPC分类号： G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic flowmeter capable of performing an accurate flow rate measurement even when an ultrasonic element varies with time. SOLUTION: When electrical load of an ultrasonic element varies with time, the variation is corrected so that it does not vary from an initial value. Thus, the value, such as ultrasonic transmission time delay or ultrasonic reception time delay, varied by the electrical load becomes constant, and the flow rate measurement can be accurately performed over a long time. COPYRIGHT: (C)2007,JPO&INPIT

10. 发明专利

JP2007127507A Ultrasonic flowmeter 有权
标题翻译：超声波流量计
公开(公告)号：JP2007127507A
公开(公告)日：2007-05-24
申请号：JP2005319967
申请日：2005-11-02
申请人： Ricoh Elemex Corp , リコーエレメックス株式会社
发明人： SEKINE YOSHIHIRO , KODAMA YUKIO
IPC分类号： G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic transmission/reception device usable accurately for a long period.
SOLUTION: A pair of ultrasonic elements are provided on the upstream and on the downstream of a passage along which a fluid passes. When emitting an ultrasonic wave, the pair of ultrasonic elements are connected in series so that each electric load (for example, each impedance) is synthesized. Though a transmission delay time when transmitting an ultrasonic wave is changed when used for long years because the electric load of each ultrasonic element is changed with lapse of time, since each element is connected so that each electric load is synthesized, an effect by a change of the transmission delay time can be avoided, to thereby enable accurate flow measurement.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供可以长时间使用的超声波发送/接收装置。解决方案：一对超声波元件设置在流体通过的通道的上游和下游。当发射超声波时，一对超声波元件串联连接，使得每个电负载（例如，每个阻抗）被合成。虽然由于每个超声波元件的电负载随着时间的推移而改变长时间使用发送超声波时的传输延迟时间，但是由于每个元件被连接成使得每个电负载被合成，所以通过变化的效果可以避免传输延迟时间，从而实现精确的流量测量。版权所有（C）2007，JPO＆INPIT

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