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1. 发明专利

JP2008014840A Ultrasonic flowmeter 审中-公开
标题翻译：超声波流量计
公开(公告)号：JP2008014840A
公开(公告)日：2008-01-24
申请号：JP2006187175
申请日：2006-07-06
申请人： Aichi Tokei Denki Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , Toshiba Corp , 愛知時計電機株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社東芝
发明人： HASEBE SHINYA , SAMEDA YOSHITOMI , TAKAHASHI YUKIO , FUJIMOTO TATSUO , SUZUKI MAMORU , KONO SACHIKO , NAGAI NOZOMI , YUASA KENICHIRO , HIROYAMA TORU , ISHIDA HIROSHI , NABESHIMA NORIYUKI , HORI ITSURO
IPC分类号： G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic flowmeter capable of heightening measurement accuracy of a flow rate by removing a measurement error. SOLUTION: In this ultrasonic flowmeter, a pair of ultrasonic vibrators 2a, 2b are provided at a fixed distance on the upstream side and on the downstream side of a channel, and an ultrasonic wave is transmitted/received by switching the transmission/reception direction between the forward direction and the reverse direction, and a flow rate is determined based on an arrival time of the ultrasonic wave in each direction. The flowmeter includes a transmission circuit 4 for generating a transmission signal to be transmitted to one ultrasonic vibrator, a reception detection circuit 5 for detecting a reception signal from the other ultrasonic vibrator, and a transmission/reception changeover switch 3 for switching mutually one ultrasonic vibrator to/from the other ultrasonic vibrator. The flowmeter has equalized values, namely, a resistance value of a route for the transmission signal when transmitting/receiving the ultrasonic wave in the forward direction, a resistance value of a route for the reception signal when transmitting/receiving the ultrasonic wave in the forward direction, a resistance value of a route for the transmission signal when transmitting/receiving the ultrasonic wave in the reverse direction, and a resistance value of a route for the reception signal when transmitting/receiving the ultrasonic wave in the reverse direction. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供能够通过消除测量误差来提高流量的测量精度的超声波流量计。解决方案：在该超声波流量计中，在通道的上游侧和下游侧以固定距离设置一对超声波振动器2a，2b，通过切换发送/ 在正向和反向之间的接收方向，并且基于超声波在每个方向上的到达时间来确定流量。流量计包括用于产生要发送到一个超声波振动器的发送信号的发送电路4，用于检测来自其他超声波振动器的接收信号的接收检测电路5和用于切换相互一个超声波振动器的发送/接收切换开关3 往/从另一个超声波振动器。流量计具有相等的值，即在向前方向发送/接收超声波时的发送信号的路线的电阻值，在向前发送接收超声波时的接收信号的路径的电阻值方向，当在相反方向上发送/接收超声波时用于发送信号的路线的电阻值，以及在反方向发送/接收超声波时用于接收信号的路线的电阻值。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2008014834A Ultrasonic flowmeter 审中-公开
标题翻译：超声波流量计
公开(公告)号：JP2008014834A
公开(公告)日：2008-01-24
申请号：JP2006187131
申请日：2006-07-06
申请人： Aichi Tokei Denki Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , Toshiba Corp , 愛知時計電機株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社東芝
发明人： NAKANO KENJI , SAMEDA YOSHITOMI , TAKAHASHI YUKIO , HASEBE SHINYA , FUJIMOTO TATSUO , SUZUKI MAMORU , KONO SACHIKO , NAGAI NOZOMI , YUASA KENICHIRO , HIROYAMA TORU , ISHIDA HIROSHI , TANAKA YUTAKA , HORI ITSURO , HATTORI HIROSHI
IPC分类号： G01F1/66 , G01F3/22
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic flowmeter capable of accurately measuring the flow rate.
SOLUTION: The ultrasonic flowmeter comprises a measuring section 11 for measuring the flow rate of fluid to be measured that flows in a passage, based on the propagation time of an ultrasonic signal that is transmitted and received between a plurality of ultrasonic vibrators 12a, 12b placed apart a certain distance from each other on the upper stream side and the lower stream side of the passage, in which the fluid to be measured flows; a storing section 13 for determining the difference between the true value of the flow rate of the fluid measured by a master flow meter 3 and the measured value of the flow rate of the fluid measured by a measuring instrument 1 for each discrete representation point and then storing them as compensation values; an interpolation means 23 for determining continuous compensation values, by interpolating compensation values for each of the discrete representation point that are stored in the storing section, and then approximating the instrumental error curve that indicates errors of measured values ; and a compensating means 23 for determining the true value of the flow rate of the fluid by compensating the measured value of the flow rate of the fluid that is measured by the measuring section, by using the instrumental error curve that is approximated by the interpolation means.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供能够精确地测量流量的超声波流量计。解决方案：超声波流量计包括：测量部分11，用于根据在多个超声波振动器12a之间传输和接收的超声波信号的传播时间来测量在通道中流动的待测流体的流量; 12b在被测流体流过的通道的上游侧和下游侧彼此隔开一定距离; 存储部分13，用于确定由主流量计3测量的流体的流量的真实值与由测量仪器1针对每个离散表示点测量的流体的流量的测量值之间的差，然后将其存储为补偿值; 插值装置23，用于通过内插存储在存储部分中的每个离散表示点的补偿值，然后近似表示测量值误差的工具误差曲线来确定连续补偿值; 以及补偿装置23，用于通过使用由插值装置近似的工具误差曲线来补偿由测量部分测量的流体的流量的测量值来确定流体的流量的真实值。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2008014833A Ultrasonic flowmeter 审中-公开
标题翻译：超声波流量计
公开(公告)号：JP2008014833A
公开(公告)日：2008-01-24
申请号：JP2006187130
申请日：2006-07-06
申请人： Aichi Tokei Denki Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , Toshiba Corp , 愛知時計電機株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社東芝
发明人： SAMEDA YOSHITOMI , TAKAHASHI YUKIO , HASEBE SHINYA , FUJIMOTO TATSUO , SUZUKI MAMORU , KONO SACHIKO , NAGAI NOZOMI , YUASA KENICHIRO , HIROYAMA TORU , ISHIDA HIROSHI , TANAKA YUTAKA , HATTORI HIROSHI , GOMYO TOMOO
IPC分类号： G01F1/66 , H04R1/34
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic flowmeter capable of accurately measuring the quantity of flow even if a flow velocity distribution in a channel is not uniform.
SOLUTION: The ultrasonic flowmeter includes a the channel 1 through which a fluid to be measured flows; a first ultrasonic oscillator 11 arranged on the upstream side of the channel; a first acoustic lens 12 for converting ultrasonic waves transmitted from the first ultrasonic oscillator as spherical waves into plane waves, guiding them to the upstream-side aperture surface of the channel, converting ultrasonic waves transmitted from the upstream-side aperture surface as plane waves into spherical waves, and guiding them to the first ultrasonic oscillator; a second ultrasonic oscillator 21 arranged on the downstream side of the channel; and a second acoustic lens 22 for converting ultrasonic waves transmitted from the second ultrasonic oscillator as spherical waves into plane waves, guiding them to the downstream-side aperture plane, converting ultrasonic waves transmitted from the downstream-side aperture surface as plane waves into spherical waves, and guiding them to the second ultrasonic oscillator. The quantity of flow of the fluid to be measured flowing through the channel is computed on the basis of the propagation time of ultrasonic waves transmitted and received between the first ultrasonic oscillator and the second ultrasonic oscillator.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种即使在通道中的流速分布不均匀的情况下也能够精确地测量流量的超声波流量计。解决方案：超声波流量计包括流过待测流体的通道1; 布置在所述通道的上游侧的第一超声波振荡器11; 用于将从第一超声波振荡器发送的超声波作为球面波转换为平面波的第一声透镜12，将其引导到通道的上游侧孔径表面，将从上游侧孔径表面传输的超声波转换为平面波，并将其引导到第一超声波振荡器; 布置在所述通道的下游侧的第二超声波振荡器21; 以及第二声透镜22，用于将从第二超声波振荡器发射的超声波作为球面波转换为平面波，将其引导到下游侧孔径面，将从下游侧孔径面发射的超声波转换为球面波并将它们引导到第二超声波振荡器。基于在第一超声波振荡器和第二超声波振荡器之间发送和接收的超声波的传播时间来计算流过通道的被测量流体的流量。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2006292376A Ultrasonic flowmeter 有权
标题翻译：超声波流量计
公开(公告)号：JP2006292376A
公开(公告)日：2006-10-26
申请号：JP2005109099
申请日：2005-04-05
申请人： Aichi Tokei Denki Co Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , Toshiba Corp , 大阪瓦斯株式会社 , 愛知時計電機株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社東芝
发明人： FUJIMOTO TATSUO , SUZUKI MAMORU , YUASA KENICHIRO , FUJII YASUHIRO , KIMURA YUKIO , HIROYAMA TORU , HORI ITSURO , TAKAHASHI YUKIO , SAMEDA YOSHITOMI , KIMURA TATSUYA , HASEBE SHINYA
IPC分类号： G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide a small-sized inexpensive ultrasonic flowmeter capable of measuring a flow rate stably and accurately for a long period.
SOLUTION: This flowmeter is equipped with a first ultrasonic vibrator 101 arranged in a gas passage, a second ultrasonic vibrator 102 arranged oppositely to the first ultrasonic vibrator in the passage, control circuits 103-109 for measuring the flow rate of gas flowing in the passage based on the difference between a propagation time measured by transmitting intermittently an ultrasonic wave from the first ultrasonic vibrator to the second ultrasonic vibrator and a propagation time measured by transmitting intermittently an ultrasonic wave from the second ultrasonic vibrator to the first ultrasonic vibrator, and power source control means 110-112 for supplying a power source to the control circuits only in a period for measuring the propagation time by transmitting the ultrasonic wave between the first ultrasonic vibrator and the second ultrasonic vibrator.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供能够长时间稳定且准确地测量流量的小型便宜的超声波流量计。
解决方案：该流量计配备有布置在气体通道中的第一超声波振动器101，与通道中的第一超声波振动器相对布置的第二超声波振动器102，用于测量气体流动的流量的控制电路103-109 基于通过间歇地从第一超声波振动器向第二超声波振动器发送超声波而测量的传播时间与通过从第二超声波振动器间歇地将超声波发送到第一超声波振子而测量的传播时间之间的差的通路，电源控制装置110-112，用于仅在通过在第一超声波振动器和第二超声波振动器之间传输超声波的测量传播时间的周期中向控制电路提供电源。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2006292380A Ultrasonic gas meter 审中-公开
标题翻译：超声波气体计
公开(公告)号：JP2006292380A
公开(公告)日：2006-10-26
申请号：JP2005109121
申请日：2005-04-05
申请人： Aichi Tokei Denki Co Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , Toshiba Corp , 大阪瓦斯株式会社 , 愛知時計電機株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社東芝
发明人： FUJIMOTO TATSUO , SUZUKI MAMORU , YUASA KENICHIRO , FUJII YASUHIRO , KIMURA YUKIO , HIROYAMA TORU , HANAMURA KOJI , MAOKA TADANORI , SAMEDA YOSHITOMI , TAKAHASHI YUKIO , KIMURA TATSUYA , HASEBE SHINYA
IPC分类号： G01F1/66 , G01F1/00 , G01F3/22 , G01F15/08
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic gas meter capable of measuring accurately the flow rate of mixture gas having a density difference or gas generating easily condensation water.
SOLUTION: This ultrasonic gas meter is equipped with a measuring pipe 13 wherein a fluid which is a measuring object flows, a first ultrasonic transducer 14 arranged on one end of the measuring pipe, a second ultrasonic transducer 15 arranged oppositely to the first ultrasonic transducer on the other end of the measuring pipe, and control circuits 18, 19 for measuring the flow rate of the fluid flowing in the measuring pipe based on the difference between a propagation time measured by transmitting an ultrasonic wave from the first ultrasonic transducer to the second ultrasonic transducer and a propagation time measured by transmitting an ultrasonic wave from the second ultrasonic transducer to the first ultrasonic transducer. The measuring pipe 13 has a double structure comprising an inner pipe 30 for allowing the fluid to pass, while removing moisture included in the fluid which is the measuring object, and an outer pipe 31 provided outside the inner pipe.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够精确地测量具有密度差的混合气体的流量或容易产生冷凝水的气体的超声波气体计量器。解决方案：该超声波气量计配备有测量管13，其中测量对象的流体流动，布置在测量管的一端的第一超声换能器14，与第一超声波换能器15相对布置的第二超声换能器15 测量管另一端的超声波换能器，以及控制电路18,19，用于根据通过从第一超声波换能器发送超声波测得的传播时间与第一超声换能器之间的差异，测量流过测量管中的流体的流量所述第二超声波换能器和通过将超声波从所述第二超声波换能器发射到所述第一超声换能器而测量的传播时间。测量管13具有双重结构，其包括用于允许流体通过的内管30，同时除去包括在作为测量对象的流体中的水分以及设置在内管外部的外管31。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2006003310A Ultrasonic flowmeter 审中-公开
标题翻译：超声波流量计
公开(公告)号：JP2006003310A
公开(公告)日：2006-01-05
申请号：JP2004182770
申请日：2004-06-21
申请人： Aichi Tokei Denki Co Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , Toshiba Corp , 大阪瓦斯株式会社 , 愛知時計電機株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社東芝
发明人： FUJIMOTO TATSUO , SUZUKI MAMORU , YUASA KENICHIRO , FUJII YASUHIRO , KIMURA YUKIO , HIROYAMA TORU , HORI ITSURO , KIMURA TATSUYA , HASEBE SHINYA
IPC分类号： G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide a low-power-consumption ultrasonic flowmeter capable of obtaining a high-accuracy measurement value. SOLUTION: This ultrasonic flowmeter has: a drive part 5 generating an ultrasonic wave; a zero-crossing detection part 7 outputting a zero-cross point of a reception signal of the ultrasonic wave as a reception point signal; a clocking part 8 measuring a propagation time of the ultrasonic wave between a pair of ultrasonic vibrators 2, 3; and an arithmetic part 9 calculating a flow rate in a flow passage on the basis of the measured propagation time. The clocking part 8 has: a counter 15 starting count of a reference clock by transmission of the ultrasonic wave, and stopping the count by the output of the reception point signal; a delay part 13 inputted with the reception point signal; and an encoder 16 recording a signal outputted from each delay element of the delay part in synchronization with the reference clock, and holding time series data in the neighborhood of a change of the reception point signal. The arithmetic part 9 corrects contents of the counter by the time series data recorded in the encoder to calculate the propagation time, and measures the flow rate in the flow passage on the basis thereof. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够获得高精度测量值的低功耗超声波流量计。解决方案：该超声波流量计具有：产生超声波的驱动部5; 输出超声波的接收信号的零交叉点作为接收点信号的过零检测部7; 时钟部分8，测量一对超声波振动器2,3之间的超声波的传播时间; 以及运算部9，其基于测定的传播时间计算流路中的流量。时钟部分8具有：计数器15通过发送超声波开始参考时钟的计数，并通过接收点信号的输出停止计数; 输入了接收点信号的延迟部13; 以及编码器16，其与参考时钟同步地记录从延迟部分的每个延迟元件输出的信号，并且在接收点信号的改变附近保持时间序列数据。算术部分9通过记录在编码器中的时间序列数据来校正计数器的内容以计算传播时间，并且基于此来测量流道中的流量。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2006292381A Ultrasonic flowmeter 审中-公开
标题翻译：超声波流量计
公开(公告)号：JP2006292381A
公开(公告)日：2006-10-26
申请号：JP2005109166
申请日：2005-04-05
申请人： Aichi Tokei Denki Co Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , Toshiba Corp , 大阪瓦斯株式会社 , 愛知時計電機株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社東芝
发明人： FUJIMOTO TATSUO , SUZUKI MAMORU , YUASA KENICHIRO , FUJII YASUHIRO , KIMURA YUKIO , HIROYAMA TORU , GOMYO TOMOO , SAMEDA YOSHITOMI , TAKAHASHI YUKIO , KIMURA TATSUYA , HASEBE SHINYA
IPC分类号： G01F1/66 , H04R17/00
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic flowmeter capable of improving measurement accuracy of a flow rate by preventing superimposition of an unnecessary reflected wave on an ultrasonic wave propagating in a measuring passage.
SOLUTION: This flowmeter is equipped with a measuring passage 10 wherein a fluid to be measured flows; a measuring pipe 13 provided in the measuring passage, for allowing the fluid to be measured to pass; a first ultrasonic transducer 14 arranged on the wall surface of the measuring passage opposite to one open end of the measuring pipe; a second ultrasonic transducer 15 arranged oppositely to the first ultrasonic transducer on the wall surface of the measuring passage opposite to the other open end of the measuring pipe; a sound absorbing material 16 arranged on the wall surface of the measuring passage around the first ultrasonic transducer and around the second ultrasonic transducer, for attenuating reflection of the ultrasonic wave emitted from the first ultrasonic transducer or the second ultrasonic transducer; and a control circuit 17 for calculating the flow rate of the fluid to be measured flowing in the measuring passage based on a propagation time of the ultrasonic wave transmitted/received between the first ultrasonic transducer and the second ultrasonic transducer.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：提供一种能够通过防止在测量通道中传播的超声波上的不必要的反射波的叠加而提高流量的测量精度的超声波流量计。
解决方案：该流量计配备有测量流路10，其中待测流体流动; 设置在测量通道中的测量管13，用于允许流体被测量通过; 布置在所述测量通道的与所述测量管的一个开口端相对的壁表面上的第一超声换能器14; 第二超声换能器15，其与所述测量管道的与所述测量管的另一开口端相反的壁表面上与所述第一超声换能器相对地布置; 布置在第一超声换能器周围的测量通道的壁表面上并围绕第二超声换能器的吸声材料16，用于衰减从第一超声换能器或第二超声换能器发射的超声波的反射; 以及控制电路17，用于根据在第一超声换能器和第二超声换能器之间发送/接收的超声波的传播时间，计算在测量通道中流动的被测流体的流量。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2009216643A Ultrasonic flowmeter 有权
标题翻译：超声波流量计
公开(公告)号：JP2009216643A
公开(公告)日：2009-09-24
申请号：JP2008062686
申请日：2008-03-12
申请人： Aichi Tokei Denki Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , Toshiba Corp , 愛知時計電機株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社東芝
发明人： HASEBE SHINYA , ISHINO HITOAKI , UYAMA HIROTO , SAMEDA YOSHITOMI , SUZUKI MAMORU , KONO SACHIKO , NAGAI NOZOMI , ISHIDA HIROSHI , HORI ITSURO
IPC分类号： G01F3/22 , G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic flowmeter that prevents measurement accuracy from being degraded by properly switching a measurement mode and prevents consumption power from being increased even when not recognized whether a gas apparatus as a pulsation generating source is installed in a users' house or a neighbor's house or the gas apparatus repeats starting and stopping of its operation.
SOLUTION: The ultrasonic flowmeter includes a pair of ultrasonic oscillators which are respectively disposed on positions at an upstream side and a downstream side of a fluid channel so as to be separated at a predetermined distance, the fluid channel having a fluid to be measured flowing therein, a propagation time period section 10 that measures a propagation time period of an ultrasonic signal transmitted or received between the pair of ultrasonic oscillators, and an instant flow rate computing section 11 that computes an instant flow rate of the fluid to be measured on the basis of the propagation time period measured by the propagation time period section 10. The ultrasonic flowmeter further includes a pulsation detecting section 12 that detects a pulsation of the fluid to be measured on the basis of at least one of the propagation time period measured by the propagation time period section 10 and the instant flow rate computed by the instant flow rate computing section 11.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种超声波流量计，其通过适当地切换测量模式来防止测量精度降低，并且即使在不识别作为脉动发生源的气体装置是否安装在...中时也防止消耗功率增加用户房屋或邻居的房屋或燃气设备重复启动和停止其运行。解决方案：超声波流量计包括一对超声波振荡器，它们分别设置在流体通道的上游侧和下游侧的位置，以便以预定距离分离，流体通道具有流体测量流过其中的测量传播时间段10，其测量在一对超声波振荡器之间发送或接收的超声波信号的传播时间段，以及计算要测量的流体的即时流量的瞬时流量计算部11 基于由传播时间段10测量的传播时间周期。超声波流量计还包括脉动检测部12，该脉动检测部12基于测量的传播时间中的至少一个，检测待测量的流体的脉动通过传播时间段10和由即时流量计算部分11计算的瞬时流量版权所有（C）2009，JPO＆INPIT

9. 发明专利

JP2009216641A Ultrasonic gas meter 有权
标题翻译：超声波气体计
公开(公告)号：JP2009216641A
公开(公告)日：2009-09-24
申请号：JP2008062666
申请日：2008-03-12
申请人： Aichi Tokei Denki Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , Toshiba Corp , 愛知時計電機株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社東芝
发明人： MORINAGA TAKESHI , HASEBE SHINYA , UYAMA HIROTO , ISHINO HITOAKI , SUZUKI MAMORU , KONO SACHIKO , NAGAI NOZOMI , ISHIDA HIROSHI , HORI ITSURO
IPC分类号： G01F3/22 , G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic gas meter for stopping abnormality determination or flow rate integration to a flow sensor when a gas meter is dismantled, preventing erroneous determination of a flow sensor abnormality, and performing accurate flow measurement.
SOLUTION: This ultrasonic gas meter having the flow meter for measuring a flow rate of gas flowing in a channel includes an abnormality detection part 26 for detecting an abnormality of flow data measured by the flow sensor, a removal determination part 28 for determining whether the ultrasonic gas meter is in a removed state from a pipe or not, a counting part 29 for counting the number of times of flow data abnormalities detected by the abnormality detection part 26 corresponding to a determination result determined by the removal determination part 28, and an abnormality determination part 30 for determining an abnormality of the flow sensor based on the number of times of flow data abnormalities counted by the counting part 29.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种超声波燃气表，用于在拆除燃气表时停止异常判定或流量积分到流量传感器，防止流量传感器异常的错误判定，并进行精确的流量测量。解决方案：具有用于测量在通道中流动的气体的流量的流量计的超声波燃气表包括用于检测由流量传感器测量的流量数据异常的异常检测部26，用于确定是否超声波气体计是否处于来自管道的去除状态;计数部分29，用于计数由异常检测部分26检测的流量数据异常次数，与由清除确定部分28确定的确定结果相对应; 以及用于根据由计数部29计数的流量数据异常次数来确定流量传感器的异常的异常判定部30。（C）2009，JPO＆INPIT

10. 发明专利

JP2008232750A Ultrasonic flowmeter 有权
标题翻译：超声波流量计
公开(公告)号：JP2008232750A
公开(公告)日：2008-10-02
申请号：JP2007071164
申请日：2007-03-19
申请人： Aichi Tokei Denki Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , Toshiba Corp , 愛知時計電機株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社東芝
发明人： MATSUO KAZUYA , UYAMA HIROTO , HASEBE SHINYA , MORI FUMITAKA , TAKAHASHI YUKIO , FUJIMOTO TATSUO , SUZUKI MAMORU , KONO SACHIKO , NAGAI NOZOMI , ISHIDA HIROSHI , HORI ITSURO
IPC分类号： G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic flowmeter which prevents erroneous flow rate measurement by providing a function of evading abnormal measurement caused by chattering or the like on the occasion of first wave detection of a received wave, and stabilizing the operation of a level comparator.
SOLUTION: The ultrasonic flowmeter has ultrasonic oscillators 22 and 24, a zero-cross detection section 40 for detecting a zero-cross point of a received wave signal and outputting a received wave detection point signal, a comparator section 34 for comparing the received wave signal with a reference voltage signal and outputting a comparison result output signal, and a controller 28a for detecting the timing of reception of the ultrasonic wave on the basis of the received wave detection point signal and the comparison result output signal, measuring a propagation time of the ultrasonic signal, and measuring and accumulating the flow rate of a fluid to be measured on the basis of the propagation time. The controller 28a is equipped with a chattering detection means for outputting a chattering detection signal, and a flow rate of the measuring fluid measured when a chattering is detected is not accumulated, and a flow rate measured just before is accumulated.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决问题的方案：提供一种超声波流量计，其通过提供在接收波的第一次波检测时避免由抖动等引起的异常测量的功能来防止错误的流量测量，并且稳定操作电平比较器。解决方案：超声波流量计具有超声波振荡器22,24，用于检测接收波信号的零交叉点并输出接收波检测点信号的零交叉检测部40，比较部34 利用参考电压信号接收波信号并输出比较结果输出信号;以及控制器28a，用于根据接收的波检测点信号和比较结果输出信号检测超声波的接收定时，测量传播超声波信号的时间，并根据传播时间测量和累积待测流体的流量。控制器28a配备有用于输出抖动检测信号的颤振检测装置，并且在不检测到抖动时测量的测量流体的流量，并且累积了刚刚测量的流量。版权所有（C）2009，JPO＆INPIT

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