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51. 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

52. 发明专利

JP2005337726A Gas flowmeter 审中-公开
标题翻译：气体流量计
公开(公告)号：JP2005337726A
公开(公告)日：2005-12-08
申请号：JP2004152958
申请日：2004-05-24
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： TANAKA YUTAKA , FUJIMOTO TATSUO , SUZUKI MAMORU , YUASA KENICHIRO , NAGAI NOZOMI , FUJII YASUHIRO , KIMURA YUKIO , HIROYAMA TORU , TSUKUDA YOSHIHIRO , KAWAI TOSHIHIKO
IPC分类号： G01F3/22 , G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide a gas flowmeter capable of reducing the burden of work in adjusting and inspecting processes. SOLUTION: In this gas flowmeter 10, specific trigger is applied to the gas flowmeter 10 from the external in a state of applying a gas of specific pressure to the gas flowmeter 10 to conduct an airtight test. Then an external airtight self-inspecting program 11 of the gas flowmeter 10 is started to judge the presence of gas leakage when the pressure change is found, and the absence of gas leakage when the pressure change is not found. As the presence or absence of the gas leakage is determined by the gas flowmeter 10 itself, the worker burden can be reduced. Further as the presence or absence of the leakage is determined by utilizing a pressure sensor 16 mounted on the gas flowmeter 10, the equipment cost for the adjusting and inspecting processes can be reduced. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够减少调整和检查过程中的工作负担的气体流量计。解决方案：在该气体流量计10中，在向气体流量计10施加特定压力的气体的状态下，从外部向气体流量计10施加特定的触发，进行气密性试验。然后，开始气体流量计10的外部气密自检程序11，当发现压力变化时判断气体泄漏的存在，以及当没有发现压力变化时没有气体泄漏。由于气体泄漏的存在或不存在由气体流量计10本身确定，所以可以减轻工人的负担。此外，通过利用安装在气体流量计10上的压力传感器16来确定是否存在泄漏，可以减少调整和检查过程的设备成本。版权所有（C）2006，JPO＆NCIPI

53. 发明专利

JP2004144642A Flow rate measuring instrument, and its control method 审中-公开
标题翻译：流量测量仪器及其控制方法
公开(公告)号：JP2004144642A
公开(公告)日：2004-05-20
申请号：JP2002310854
申请日：2002-10-25
申请人： Osaka Gas Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , 大阪瓦斯株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社
发明人： SAKAI KATSUTO , KOBAYASHI MASATOMO , YUASA KENICHIRO , OKADA SHUICHI , TAGAWA SHIGERU , FUJII YASUHIRO , KIMURA YUKIO , HIROYAMA TORU
IPC分类号： G01F1/00 , G01F1/66 , G01F3/22
摘要： PROBLEM TO BE SOLVED: To automatically decide run-out from a proper temperature range of a using environmental temperature when occurred, and to automatically and surely conduct an output of an alarm therefor, cut-off of a fluid of a measuring object such as gas, and/or stop of flow rate measurement accompanied thereto, in a flow rate measuring instrument such as a gas meter. SOLUTION: An abnormality deciding and control circuit 40 compares a temperature of the measured gas with the first temperature range, and the second temperature range set in a prescribed temperature range wider than the first temperature range, and decides whether the gas temperature deviates from the first temperature range or not. The alarm is issued when deciding the deviation from the first temperature range, and cut-off valve is closed to cut off the continuity of gas when deciding also the run-out from the second temperature range. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了在发生使用环境温度的适当温度范围内自动确定耗尽量，并自动且可靠地进行报警输出时，切断测量对象的流体例如气体，和/或伴随其的流速测量的停止，在诸如气量计的流量测量仪器中。解决方案：异常判定和控制电路40将测量的气体的温度与第一温度范围以及在比第一温度范围更宽的规定温度范围内设定的第二温度范围进行比较，并且判定气体温度是否偏离从第一个温度范围或不。当确定与第一温度范围的偏差时，发出报警，并且在判定第二温度范围内的熄灭时，截止阀关闭以切断气体的连续性。版权所有（C）2004，JPO

54. 发明专利

JP2005201865A Diaphragm gas meter 审中-公开
标题翻译：透气气体计
公开(公告)号：JP2005201865A
公开(公告)日：2005-07-28
申请号：JP2004010849
申请日：2004-01-19
申请人： Osaka Gas Co Ltd , Toyo Gas Meter Kk , 大阪瓦斯株式会社 , 東洋ガスメーター株式会社
发明人： TAGAWA SHIGERU , FUJII YASUHIRO , OKADA SHUICHI , MIZUKOSHI JIRO , ISONO NOBORU , TERANISHI YUTAKA
IPC分类号： G01F3/22
摘要： PROBLEM TO BE SOLVED: To provide a diaphragm gas meter capable of restraining vertical motion of a rotary valve to a required minimum at transportion or at construction.
SOLUTION: In this diaphragm gas meter, two air chambers 11, sandwiching a diaphragm 13 which is fixed airtightly with an outer circumferential edge, are provided in each of two measuring chambers 1 located with a partitioning wall therebetween, and advancing and retracting displacements of the diaphragm 13, by the supply and exhaust of gas in the two air chambers 11, are converted respectively into rotational motions and conduct measurement of the gas. The diaphragm gas meter is provided with a regulation guide 54 for restraining the floating of a peripheral edge part of the rotary valve 3 for controlling the supply and exhaust of gas to the two air chambers 11.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够在运输或施工时将旋转阀的垂直运动限制在所需最小值的隔膜式气量计。
解决方案：在这种隔膜式气量计中，在两个测量室1中设置两个气室11，两个气室11在其间具有分隔壁的两个测量室1中分别设置有与外周边气密密封的隔膜13，并且前进和后退通过两个气室11中的气体的供给和排出，隔膜13的位移被分别转换成旋转运动并进行气体的测量。隔膜式气量计设置有用于限制旋转阀3的周缘部的浮动的调节引导件54，用于控制向两个气室11供给和排出气体。（C）2005年， JPO＆NCIPI

55. 发明专利

JP2010019858A Ultrasonic flowmeter 有权
标题翻译：超声波流量计
公开(公告)号：JP2010019858A
公开(公告)日：2010-01-28
申请号：JP2009245474
申请日：2009-10-26
申请人： Aichi Tokei Denki Co Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , 大阪瓦斯株式会社 , 愛知時計電機株式会社 , 東邦瓦斯株式会社
发明人： FUJII YASUHIRO , KIMURA YUKIO , NABESHIMA NORIYUKI , NAGATA YOSHIAKI
IPC分类号： G01F1/66 , G01F1/72
摘要： PROBLEM TO BE SOLVED: To improve the accuracy of fluid flow measurement so as not to synchronize the sampling time points of the arrival time and total arrival time of an ultrasonic wave with pulsation while reducing the size and capacity of a battery by decreasing current consumption. SOLUTION: The ultrasonic flowmeter transmits an ultrasonic wave from a transducer 2 in the forward direction, and repeats transmission/reception received by a transducer 3 n times continuously. The total arrival time T 11 is then counted using a counter 8. The total arrival time T 21 in the reverse direction is obtained similarly. This measurement is repeated more than once (m times) at sampling intervals Ts. The total sum ΣT 1 i of the total arrival times in the forward direction and the total sum ΣT 2 i of the total arrival times in the reverse direction are obtained by an operation part 9, and flow velocity and flow rate are calculated based on both total sums. This flow rate measurement period T Q is repeated at a regular time interval, and the maximum value [T 1 i]max of the total arrival time in the forward direction in each period T Q is stored. When the variation for every period T Q reaches a certain amount or more, the sampling interval Ts is changed. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提高流体流量测量的精度，以便不使具有脉动的超声波的到达时间和总到达时间的采样时间点同步，同时通过减少电池的尺寸和容量来减小电池的尺寸和容量目前的消费。解决方案：超声波流量计从正向转换换能器2的超声波，连续重复由换能器3接收的发送/接收。然后使用计数器8计算总到达时间T 11 。类似地获得相反方向的总到达时间T <21> 。在采样间隔Ts，该测量重复多次（m次）。通过操作获得总计到达时间在正向方向上的总和ΣT 1 和总反向时间总和ΣT 2 第9部分，流速和流速是基于总和计算的。以规则的时间间隔重复该流量测量周期T Q ，并且每个中的正向方向上的总到达时间的最大值[T 1 i] max 存储期间T Q 。当每个周期T Q 的变化达到一定量以上时，采样间隔Ts被改变。版权所有（C）2010，JPO＆INPIT

56. 发明专利

JP2004144744A Ultrasonic flowmeter 有权
公开(公告)号：JP2004144744A
公开(公告)日：2004-05-20
申请号：JP2003345454
申请日：2003-10-03
申请人： Aichi Tokei Denki Co Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , 大阪瓦斯株式会社 , 愛知時計電機株式会社 , 東邦瓦斯株式会社
发明人： FUJII YASUHIRO , KIMURA YUKIO , NABESHIMA NORIYUKI , NAGATA YOSHIAKI
IPC分类号： G01F1/66 , G01F1/72
摘要： PROBLEM TO BE SOLVED: To make a battery compact and have a small capacity by reducing the current consumption and to improve the accuracy of a flowmeter in the measurement of quantity of flow by preventing the arrival times of ultrasonic waves and the sampling point in time of the total arrival time from synchronizing with pulsation.
SOLUTION: The transmission of ultrasonic waves in the forward direction from a transmitter/receiver 2 and reception by a transmitter/receiver 3 are continuously repeated n-times. The total arrival time T
11 counted at a counter 8. The total arrival time T
21 in the opposite direction is similarly acquired. These measurements are repeated at sampling intervals Ts a plurality of times (m-times). The total sum ΣT
1 i of the total arrival time in the forward direction and the total sum ΣT
2 i in the opposite direction are determined at an arithmetic part 9. On the basis of both total sums, flow velocity and quantity of flow are computed. This flow quantity measurement period T
Q is repeated at time intervals. A maximum value [T
1 i] max of the total arrival time in the forward direction for every period T
Q is stored. When a change for every period T
Q exceeds a prescribed value, the sampling intervals Ts are changed.
COPYRIGHT: (C)2004,JPO

57. 发明专利

JP2004020394A Flow meter 有权
公开(公告)号：JP2004020394A
公开(公告)日：2004-01-22
申请号：JP2002176343
申请日：2002-06-17
申请人： Aichi Tokei Denki Co Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , 大阪瓦斯株式会社 , 愛知時計電機株式会社 , 東邦瓦斯株式会社
发明人： MINAMI TADAYUKI , FUJII YASUHIRO , KIMURA YUKIO , NABESHIMA NORIYUKI
IPC分类号： G01F1/00 , G01F1/66 , G01F3/22 , G01F15/075
摘要： PROBLEM TO BE SOLVED: To detect an abnormality-generated measuring passage out of the plurality of measuring passages, in an early stage.
SOLUTION: A control circuit part 9 measures a flow rate in every of the measuring passages 2
1 -2
N in a period (for example, 0.1sec) sufficiently shorter than a measuring period, and compares each other the flow rates in the respective passages 2
1 -2
N. When the flow rate in which a difference with respect to the flow rate in the other measuring passage exceeds a prescribed threshold value exists, generation of abnormality is judged in the measuring passage of the flow rate. When the generation of the abnormality is judged, the flow rate is measured in the period sufficiently shorter than the usual measuring period, by this manner, to detect the abnormality-generated measuring passage out of the plurality of measuring passages 2
1 -2
N in the early stage.
COPYRIGHT: (C)2004,JPO

58. 发明专利

JP2003315123A Ultrasonic flowmeter 有权
标题翻译：超声波流量计
公开(公告)号：JP2003315123A
公开(公告)日：2003-11-06
申请号：JP2002126452
申请日：2002-04-26
申请人： Aichi Tokei Denki Co Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , 大阪瓦斯株式会社 , 愛知時計電機株式会社 , 東邦瓦斯株式会社
发明人： MINAMI TADAYUKI , FUJII YASUHIRO , KIMURA YUKIO , NABESHIMA NORIYUKI
IPC分类号： G01F1/66
摘要： PROBLEM TO BE SOLVED: To perform battery drive without using a large-current consuming circuit such as a peak value hold circuit and to automatically detect performance degradation in a transmitter/receiver to issue an alarm.
SOLUTION: Normally, a received wave is large in amplitude and its third wave exceeds at once a fourth pair of VTH4 and VTH8 of a reference voltage level VTH. Then, propagation time is measured with the zero cross pint of the third wave assumed to be the arrival point of an ultrasonic, to calculate the flow velocity and flow rate. When the ultrasonic transmitter/receiver is degraded and the amplitude of a received wave is lowered/lessened, the third wave exceeds, at the start and at once, a first pair of VTH1 and VTH5 of the reference voltage level VTH. Then, an alarm is issued over the lowering of the received wave. The VTH1, 2,..., 12, are determined to exponentially increase in order in 1.26 time relation.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：在不使用诸如峰值保持电路的大电流消耗电路的情况下进行电池驱动，并且自动检测发送器/接收器中的性能劣化以发出报警。解决方案：通常，接收波幅度大，其第三波超过参考电压电平VTH的第四对VTH4和VTH8。然后，传播时间用第三波的零交叉点假定为超声波的到达点来测量，以计算流速和流速。当超声波发射机/接收机劣化并且接收波的振幅降低/降低时，第三波在起始处和一时间超过参考电压电平VTH的第一对VTH1和VTH5。然后，在接收到的波的降低时发出报警。 VTH1，2，...，12被确定为以1.26时间关系的顺序指数地增加。版权所有（C）2004，JPO

59. 发明专利

JP2004020395A Flowmeter 审中-公开
公开(公告)号：JP2004020395A
公开(公告)日：2004-01-22
申请号：JP2002176344
申请日：2002-06-17
申请人： Aichi Tokei Denki Co Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , 大阪瓦斯株式会社 , 愛知時計電機株式会社 , 東邦瓦斯株式会社
发明人： MINAMI TADAYUKI , FUJII YASUHIRO , KIMURA YUKIO , NABESHIMA NORIYUKI
IPC分类号： G01F1/00 , G01F1/66 , G01F3/22 , G01F15/06
摘要： PROBLEM TO BE SOLVED: To accurately measure a flow rate as the whole even when abnormality is generated in any of a plurality of measuring passages.
SOLUTION: A control circuit part 9 detects the generation of the abnormality based on flow rates in the respective measuring flow passages 2
1 -2
3, and finds the sum of the flow rates using the flow rate equivalent to the flow rate in the normal flow passage where the abnormality is not detected, instead of the flow rate in the flow passage where the abnormality is detected. That is, since a fluid having the substantially same flow rate flows in each of the plurality of flow passages 2
1 -2
3 connected in parallel each other, the sum of the flow rates is found using the flow rate in the normal flow passage 2
1 where the abnormality is not detected, instead of the flow rate in the flow passage 2
3 where the abnormality is detected, so as to measure accurately the flow rate as the whole even when the abnormality is generated in any of the plurality of measuring passages 2
1 -2
3 .
COPYRIGHT: (C)2004,JPO

60. 发明专利

JP2003294509A Flowmeter 有权
标题翻译：流量计
公开(公告)号：JP2003294509A
公开(公告)日：2003-10-15
申请号：JP2002093604
申请日：2002-03-29
申请人： Aichi Tokei Denki Co Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , 大阪瓦斯株式会社 , 愛知時計電機株式会社 , 東邦瓦斯株式会社
发明人： FUJII YASUHIRO , MINAMI TADAYUKI , HIROYAMA TORU , NABESHIMA NORIYUKI , NAGATA YOSHIAKI
IPC分类号： G01F3/22 , G01F1/66 , G01F1/72
摘要： PROBLEM TO BE SOLVED: To provide a flowmeter capable of selecting a measuring cycle not an integral multiple of a pulsation cycle in a relatively short time in an environment wherein pressure pulsation is generated.
SOLUTION: An instantaneous flow calculation part 20b measures an instantaneous flow with a measuring cycle set in a measuring timing generation part 20a by using an instantaneous flow measuring part 4. A synchronization determination part 25 is provided with a first peak detection means 25b and a second peak detection means 25c for deciding an upper peak value and a lower peak value from the time series of the instantaneous flow, and an intermediate value setting means 25a for setting the average value of the upper peak value and the lower peak value as an intermediate value. A measuring cycle change means 25 formed in the determination part 25 directs the generation part 20a to change the measuring cycle when the instantaneous flow does not cross the intermediate value in a specified multiple times of continuous measurement.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种流量计，其能够在产生压力脉动的环境中在相当短的时间内选择不是脉动循环的整数倍的测量循环。解决方案：瞬时流量计算部分20b通过使用瞬时流量测量部分4来测量在测量定时产生部分20a中设置的测量循环的瞬时流量。同步确定部分25设置有第一峰值检测装置25b 以及用于根据瞬时流量的时间序列决定上峰值和下峰值的第二峰值检测装置25c，以及用于将上峰值和下峰值的平均值设定为中间值设定装置25a，一个中间值。在确定部25中形成的测量循环改变装置25在指定的多次连续测量中，当瞬时流量不超过中间值时，指示生成部分20a改变测量循环。版权所有（C）2004，JPO

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