Flow measurement device
    1.
    发明授权
    Flow measurement device 有权
    流量测量装置

    公开(公告)号:US08903663B2

    公开(公告)日:2014-12-02

    申请号:US12809311

    申请日:2008-12-12

    IPC分类号: G01F23/28 G06F19/00 G01F1/66

    CPC分类号: G01F1/667 G01F1/662

    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。

    Ultrasonic flowmeter including an oscillation start unit for acceleration stability of the oscillator
    2.
    发明授权
    Ultrasonic flowmeter including an oscillation start unit for acceleration stability of the oscillator 有权
    超声波流量计包括用于振荡器加速度稳定性的振荡启动单元

    公开(公告)号:US07987731B2

    公开(公告)日:2011-08-02

    申请号:US12521443

    申请日:2007-04-26

    IPC分类号: G01F1/66

    CPC分类号: G01F1/667

    摘要: The present invention provides an ultrasonic flowmeter comprising an oscillator and an oscillation start unit for accelerating oscillation of the oscillator. The oscillation start unit accelerates the oscillation of the oscillator so that pulses from the oscillator will become stable in a shorter time period. The accuracy of flow rate measurement is improved. Electric power can be saved where the flow rate is measured repeatedly at intervals.

    摘要翻译: 本发明提供了一种超声波流量计,其包括用于加速振荡器的振荡的振荡器和振荡起动单元。 振荡开始单元加速振荡器的振荡,使得来自振荡器的脉冲将在更短的时间段内变得稳定。 提高流量测量精度。 可以节省多次重复测量流量的电力。

    Fluid flow measuring instrument
    3.
    发明授权
    Fluid flow measuring instrument 有权
    流体流量计

    公开(公告)号:US07634366B2

    公开(公告)日:2009-12-15

    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 includes 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。

    FLOW MEASUREMENT DEVICE
    4.
    发明申请
    FLOW MEASUREMENT DEVICE 有权
    流量测量装置

    公开(公告)号:US20110238332A1

    公开(公告)日:2011-09-29

    申请号:US12809311

    申请日:2008-12-12

    IPC分类号: G06F19/00

    CPC分类号: G01F1/667 G01F1/662

    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。

    ULTRASONIC FLOWMETER
    5.
    发明申请
    ULTRASONIC FLOWMETER 有权
    超声波流量计

    公开(公告)号:US20100319464A1

    公开(公告)日:2010-12-23

    申请号:US12521443

    申请日:2007-04-26

    IPC分类号: G01F1/66

    CPC分类号: G01F1/667

    摘要: It is desirable that an operation of an oscillator used for measuring propagation time of ultrasonic waves in an ultrasonic flowmeter be an intermittent operation in order to achieve electric power savings. However, pulse stability of the oscillator requires time, so that there is a problem that the intermittent operation cannot be performed. An ultrasonic flowmeter comprising an oscillator 60, and an oscillation start unit 61 for accelerating oscillation of the oscillator, constructed so that a pulse of the oscillator oscillated by the oscillation start unit 61 is used in measurement of propagation time of ultrasonic waves.

    摘要翻译: 希望在超声波流量计中测量超声波的传播时间的振荡器的动作是间歇动作,以实现电力节约。 然而,振荡器的脉冲稳定性需要时间,因此存在无法进行间歇操作的问题。 一种包括振荡器60的超声波流量计和用于加速振荡器的振荡的振荡开始单元61,其被构造成使得由振荡开始单元61振荡的振荡器的脉冲用于测量超声波的传播时间。

    FLUID FLOW MEASURING INSTRUMENT
    6.
    发明申请
    FLUID FLOW MEASURING INSTRUMENT 有权
    流体流量测量仪

    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。

    FLOW RATE MEASUREMENT APPARATUS, PROGRAM THEREOF, FLOW RATE MEASUREMENT METHOD, AND FLUID SUPPLY SYSTEM
    7.
    发明申请
    FLOW RATE MEASUREMENT APPARATUS, PROGRAM THEREOF, FLOW RATE MEASUREMENT METHOD, AND FLUID SUPPLY SYSTEM 审中-公开
    流量测量装置,其程序,流量测量方法和流体供应系统

    公开(公告)号:US20100138167A1

    公开(公告)日:2010-06-03

    申请号:US12597598

    申请日:2008-04-25

    IPC分类号: G01F3/22

    摘要: There is provided a technique for accurately identifying an appliance which uses the fluid from a viewpoint of the range of a change in flow rate value. An ultrasonic flow rate measuring device 7 measures a flow rate value of gas flowing in a flow passage 6 of a gas meter 16, and a measured flow rate information storage section 8 stores a measured flow rate value. A measured flow rate value difference calculation section 9 calculates a measured flow rate value difference within a predetermined period corresponding to an amount of change occurred in a measured flow rate value. An appliance identifying section 11 identifies an appliance which uses the fluid or leakage by determining whether or not the measured flow rate value difference is a predetermined threshold or less.

    摘要翻译: 提供了从流量值的变化范围的观点来准确地识别使用流体的器具的技术。 超声波流量测量装置7测量在燃气表16的流路6中流动的气体的流量值,测量流量信息存储部8存储测量的流量值。 测量流量值差计算部9计算与测定流量值中发生的变化量对应的规定期间内的测定流量值差。 设备识别部分11通过确定测量的流量值差异是否为预定阈值或更小来识别使用流体或泄漏的器具。

    High-frequency heating apparatus mounted on a motor vehicle
    8.
    发明授权
    High-frequency heating apparatus mounted on a motor vehicle 失效
    安装在汽车上的高频加热装置

    公开(公告)号:US5347109A

    公开(公告)日:1994-09-13

    申请号:US842146

    申请日:1992-03-20

    IPC分类号: H05B6/66 H05B6/68 H05B6/80

    CPC分类号: H05B6/80 H05B6/685

    摘要: A DC power source constituted by a power generator (20), a dynamo (22) and a rectification means (23), an inverter power source (24) which boosts an output of the DC power source so as to drive a magnetron (28) and an inverter controller for controlling the inverter power source (24) by an output of a generated electric power output detecting means (31) for detecting the output of the DC power source are provided, whereby a required dielectric heating function can be stably achieved by controlling an operational state of the inverter power source (24) by the output of the DC power source.

    摘要翻译: PCT No.PCT / JP91 / 00998 Sec。 371日期:1992年3月20日 102(e)1992年3月20日PCT PCT 1991年7月25日PCT公布。 第WO92 / 02111号公报 日期:1992年2月6日。由发电机(20),发电机(22)和整流装置(23)构成的直流电源,将直流电源的输出升压的逆变器电源(24) 为了驱动磁控管(28),通过用于检测直流电源的输出的生成电力输出检测装置(31)的输出来控制逆变器电源(24)的逆变器控制器,由此需要 通过直流电源的输出控制逆变器电源(24)的工作状态,可以稳定地实现介质加热功能。