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公开(公告)号：US08972208B2
公开(公告)日：2015-03-03
申请号：US13993406
申请日：2011-12-06
CPC分类号： G01F1/66
摘要： In a flow meter device of the present invention, a time measuring section of the flow meter device includes a first counter which starts counting at a starting point of measurement of propagation time; and a second counter which starts counting at an end point of the measurement of the propagation time, and performs counting at a higher speed than the first counter. A propagation time TO is finally obtained by subtracting time Δt which is measured by the second counter and passes from the end point until the first counter counts up, from time T which is measured by the first counter and passes from a starting point until the first counter counts up after the end point. A flow calculating section calculates a flow with high accuracy using the propagation time TO. Thus, lower electric power consumption can be achieved, and accuracy of measurement of flow can be improved.
摘要翻译： 在本发明的流量计装置中，流量计装置的时间测量部包括在传播时间的测量起点开始计数的第一计数器， 以及在传播时间的测量结束点开始计数的第二计数器，并以比第一计数器更高的速度进行计数。 通过从第一计数器测量的时间T减去由第二计数器测量并从终点通过直到第一计数器递增的时间＆Dgr; t，从传送时间TO开始，直到从 第一个计数器在终点之后计数。 流量计算部使用传播时间TO计算高精度的流量。 因此，可以实现更低的电力消耗，并且可以提高流量的测量精度。
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公开(公告)号：US20120185183A1
公开(公告)日：2012-07-19
申请号：US13499258
申请日：2010-09-30
申请人： Kouichi Takemura , Fumikazu Shiba
发明人： Kouichi Takemura , Fumikazu Shiba
摘要： In a flow meter device of the present invention, a unit measuring step is defined as a procedure for measuring ultrasonic sound wave propagation times by changing the direction in which an ultrasonic sound wave is transmitted and received between a first transducer (2) and a second transducer (3), and a time measuring means (12) measures a propagation time in a forward direction and a propagation time in a reverse direction in a unit measuring step. A time difference detecting means (16) detects a difference between the propagation time in the forward direction and the propagation time in the reverse direction which are measured by the time measuring means (12). A determiner means (17) determines whether or not there is a fluid flow based on the time difference. According to presence/absence of a fluid flow, the number of times the unit measuring step is performed is determined. Therefore, it can be determined whether or not there is a fluid flow quickly in real time. A responsiveness can be improved such that a measuring method can be switched to correspond to presence/absence of a fluid flow.
摘要翻译： 在本发明的流量计装置中，单位测量步骤被定义为通过改变在第一换能器（2）和第二换能器（2）之间发送和接收超声波的方向来测量超声波传播时间的步骤 换能器（3）和时间测量装置（12）在单位测量步骤中测量正向方向上的传播时间和反向的传播时间。 时差检测装置（16）检测由时间测量装置（12）测量的正向传播时间和反向传播时间之间的差异。 确定器装置（17）基于时间差确定是否存在流体流动。 根据是否存在流体流动，确定进行单位测量步骤的次数。 因此，能够快速确定是否存在流体流动。 可以提高响应性，使得可以切换测量方法以对应于流体流动的存在/不存在。
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公开(公告)号：US20110238332A1
公开(公告)日：2011-09-29
申请号：US12809311
申请日：2008-12-12
申请人： Fumikazu Shiba , Koichi Takemura , Daisuke Bessyo
发明人： Fumikazu Shiba , Koichi Takemura , Daisuke Bessyo
IPC分类号： G06F19/00
摘要： To find the propagation time of an ultrasonic wave, a difference occurs between the waveforms received upstream and downstream in a portion where the reception amplitude is comparatively large and it is prevented from being detected as an error of the propagation time. A reception signal is amplified in a reception unit 35 and reception point storage units 38 store the most recent reception point data in a plurality of storage sections in order until the signal level becomes a predetermined value (Vref). An average value of the two zero crossing points before and after the signal level becomes Vref can be adopted as a reception point, the propagation time with a small error of up and down offset, etc., is measured, and it is made possible to realize power saving operation by shortening the measurement time.
摘要翻译： 为了找到超声波的传播时间，在接收幅度比较大的部分中接收的上下游波形之间出现差异，并且防止被检测为传播时间的误差。 在接收单元35中放大接收信号，并且接收点存储单元38按顺序存储多个存储区中的最新接收点数据，直到信号电平变为预定值（Vref）为止。 可以采用将信号电平变为Vref之前和之后的两个过零点的平均值作为接收点，测量上下偏移误差等的传播时间，并且可以 通过缩短测量时间实现省电操作。
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公开(公告)号：US07082841B2
公开(公告)日：2006-08-01
申请号：US10711055
申请日：2004-08-19
申请人： Yasuhiro Umekage , Yukio Nagaoka , Osamu Eguchi , Shuji Abe , Yuji Nakabayashi , Kenzo Ohji , Fumikazu Shiba , Akihisa Adachi , Masahiko Hashimoto , Toshiharu Sato , Yuji Fujii
发明人： Yasuhiro Umekage , Yukio Nagaoka , Osamu Eguchi , Shuji Abe , Yuji Nakabayashi , Kenzo Ohji , Fumikazu Shiba , Akihisa Adachi , Masahiko Hashimoto , Toshiharu Sato , Yuji Fujii
IPC分类号： G01F1/66
摘要： An ultrasonic flowmeter includes a transmission/reception means provided in a flow path for performing transmission/reception using a state change of fluid; repetition means for repeating the transmission/reception; time measurement means for measuring a time of propagation repeated by the repetition means; flow rate detection means for detecting a flow rate based on a value of the time measurement means; and number-of-times change means for changing to a predetermined number of repetition times. With such a structure, an influence caused by a variation of a flow can be suppressed by changing the number of repetition times so as to be suitable for a variation. As a result, reliable flow rate measurement with a high accuracy can be achieved.
摘要翻译： 超声波流量计包括：设置在流路中的发送/接收装置，用于使用流体的状态变化进行发送/接收; 用于重复发送/接收的重复装置; 时间测量装置，用于测量重复装置重复的传播时间; 流量检测装置，用于基于时间测量装置的值检测流量; 和改变为预定次数的重复次数的次数改变装置。 通过这样的结构，可以通过改变重复次数来适应变化来抑制由流动变化引起的影响。 因此，可以实现高精度的可靠的流量测量。
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公开(公告)号：US06796189B1
公开(公告)日：2004-09-28
申请号：US10019418
申请日：2002-03-29
申请人： Yasuhiro Umekage , Yukio Nagaoka , Osamu Eguchi , Shuji Abe , Yuji Nakabayashi , Kenzo Ohji , Fumikazu Shiba , Akihisa Adachi , Masahiko Hashimoto , Toshiharu Sato , Yuji Fujii
发明人： Yasuhiro Umekage , Yukio Nagaoka , Osamu Eguchi , Shuji Abe , Yuji Nakabayashi , Kenzo Ohji , Fumikazu Shiba , Akihisa Adachi , Masahiko Hashimoto , Toshiharu Sato , Yuji Fujii
IPC分类号： G01F166
摘要： For the purpose of solving the above problems, the present invention includes: transmission/reception means provided in a flow path for performing transmission/reception using a state change of fluid; repetition means for repeating the transmission/reception; time measurement means for measuring a time of propagation repeated by the repetition means; flow rate detection means for detecting a flow rate based on a value of the time measurement means; and number-of-times change means for changing to a predetermined number of repetition times. With such a structure, an influence caused by a variation of a flow can be suppressed by changing the number of repetition times so as to be suitable for a variation. As a result, reliable flow rate measurement with a high accuracy can be achieved.
摘要翻译： 为了解决上述问题，本发明包括：发送/接收装置，其设置在用于使用流体的状态变化进行发送/接收的流路中; 用于重复发送/接收的重复装置; 时间测量装置，用于测量重复装置重复的传播时间; 流量检测装置，用于基于时间测量装置的值检测流量; 和改变为预定次数的重复次数的次数改变装置。 通过这样的结构，可以通过改变重复次数来适应变化来抑制由流动变化引起的影响。 因此，可以实现高精度的可靠的流量测量。
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公开(公告)号：US20080289434A1
公开(公告)日：2008-11-27
申请号：US12028539
申请日：2008-02-08
IPC分类号： G01F1/66
CPC分类号： G01F1/667
摘要： A measurement control section comprises a time measuring section for controlling an operation of measuring a travel time of an ultrasonic wave. The measurement control section operations, based on a high rate clock signal supplied from a ceramic oscillation circuit during the time measuring operation. A clock control section stops the high rate clock signal supplied from the ceramic oscillation circuit every time when the time measuring section completes its time measuring operation, and uses a low rate clock signal supplied from a quartz oscillation circuit to count a standby time between the end of measuring the travel time and the start of carrying out the next measuring operation.
摘要翻译： 测量控制部分包括用于控制测量超声波行进时间的操作的时间测量部分。 测量控制部分基于在时间测量操作期间从陶瓷振荡电路提供的高速率时钟信号进行操作。 每当时间测量部分完成其时间测量操作时，时钟控制部分停止从陶瓷振荡电路提供的高速率时钟信号，并且使用从石英振荡电路提供的低速率时钟信号来计数结束之间的待机时间 测量行驶时间和开始进行下一次测量操作。
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公开(公告)号：US06644129B1
公开(公告)日：2003-11-11
申请号：US09979589
申请日：2001-11-16
申请人： Fumikazu Shiba , Yuji Nakabayashi
发明人： Fumikazu Shiba , Yuji Nakabayashi
IPC分类号： G01F166
摘要： A flow rate measurement apparatus includes: a plurality of flow paths 13 provided between an inflow port 11 and an outflow port 12; opening/closing sections 14 for opening/closing the plurality of flow paths 13; measurement sections 15 for measuring a flow rate of fluid flowing through at least one of the plurality of flow paths 13; and a control section 17 for controlling the opening/closing sections 14 and the measurement sections 15; The control section 17 includes a gain adjustment section 16 for correcting a gain of the measurement section 15 in a flow path which is closed by the opening/closing section 14.
摘要翻译： 流量测量装置包括：设置在流入口11和流出口12之间的多个流路13; 用于打开/关闭多个流路13的开闭部14; 用于测量流过多个流路13中的至少一个的流体的流量的测量部15; 以及用于控制开闭部14和测量部15的控制部17; 控制部分17包括一个增益调节部分16，用于在由开/关部分14关闭的流路中校正测量部分15的增益。
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公开(公告)号：US5404128A
公开(公告)日：1995-04-04
申请号：US30531
申请日：1993-03-12
IPC分类号： B60R21/01 , B60R21/015 , B60R22/48 , G08B21/00
CPC分类号： B60R22/48 , B60R21/01512 , B60R21/01542 , B60R2022/4816 , B60R2022/4858 , B60R2022/4866
摘要： A safety control apparatus positively discriminates between an object and a person through the detection of subtle physical movement corresponding to the heart activity and the breathing unique to the life activity of the human body from a output signal of a vibration sensor disposed on a seat so as to accurately decide whether or not a person is present. The maintenance of the safe operation of the moving vehicle can be realized. The starting of the moving vehicle is inhibited if the reserved seat is determined to be unoccupied in accordance with the decision result. In the case where the person is present, the moving of the vehicle is not started before the engagement of the seat belt has been detected.
摘要翻译： 安全控制装置通过从设置在座椅上的振动传感器的输出信号通过检测对应于人体活动的人体活动特有的呼吸的微妙物理运动和人体生命活动的呼吸来正确地区分对象和人物，以便 准确地确定一个人是否存在。 可以实现对移动车辆的安全运行的维护。 如果根据决策结果确定预留座位未被占用，则移动车辆的起动被禁止。 在该人存在的情况下，在检测到安全带的接合之前车辆的移动不开始。
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公开(公告)号：US08903663B2
公开(公告)日：2014-12-02
申请号：US12809311
申请日：2008-12-12
申请人： Fumikazu Shiba , Koichi Takemura , Daisuke Bessyo
发明人： Fumikazu Shiba , Koichi Takemura , Daisuke Bessyo
摘要： To find the propagation time of an ultrasonic wave, a difference occurs between the waveforms received upstream and downstream in a portion where the reception amplitude is comparatively large and it is prevented from being detected as an error of the propagation time. A reception signal is amplified in a reception unit 35 and reception point storage units 38 store the most recent reception point data in a plurality of storage sections in order until the signal level becomes a predetermined value (Vref). An average value of the two zero crossing points before and after the signal level becomes Vref can be adopted as a reception point, the propagation time with a small error of up and down offset, etc., is measured, and it is made possible to realize power saving operation by shortening the measurement time.
摘要翻译： 为了找到超声波的传播时间，在接收幅度比较大的部分中接收的上下游波形之间出现差异，并且防止被检测为传播时间的误差。 在接收单元35中放大接收信号，并且接收点存储单元38按顺序存储多个存储区中的最新接收点数据，直到信号电平变为预定值（Vref）为止。 可以采用将信号电平变为Vref之前和之后的两个过零点的平均值作为接收点，测量上下偏移误差等的传播时间，并且可以 通过缩短测量时间实现省电操作。
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公开(公告)号：US20130269447A1
公开(公告)日：2013-10-17
申请号：US13993406
申请日：2011-12-06
IPC分类号： G01F1/66
CPC分类号： G01F1/66
摘要： In a flow meter device of the present invention, a time measuring section of the flow meter device includes a first counter which starts counting at a starting point of measurement of propagation time; and a second counter which starts counting at an end point of the measurement of the propagation time, and performs counting at a higher speed than the first counter. A propagation time TO is finally obtained by subtracting time Δt which is measured by the second counter and passes from the end point until the first counter counts up, from time T which is measured by the first counter and passes from a starting point until the first counter counts up after the end point. A flow calculating section calculates a flow with high accuracy using the propagation time TO. Thus, lower electric power consumption can be achieved, and accuracy of measurement of flow can be improved.
摘要翻译： 在本发明的流量计装置中，流量计装置的时间测量部包括在传播时间的测量起点开始计数的第一计数器， 以及在传播时间的测量结束点开始计数的第二计数器，并以比第一计数器更高的速度进行计数。 通过从第一计数器测量的时间T减去由第二计数器测量并从终点传递到第一计数器向上计数的时间Deltat，最终获得传播时间TO，并从第一个计数器开始直到第一个计数器 计数器在终点后计数。 流量计算部使用传播时间TO计算高精度的流量。 因此，可以实现更低的电力消耗，并且可以提高流量的测量精度。
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