Flow meter device
    1.
    发明授权
    Flow meter device 有权
    流量计装置

    公开(公告)号:US08972208B2

    公开(公告)日:2015-03-03

    申请号:US13993406

    申请日:2011-12-06

    IPC分类号: G01F1/66 G01F1/00 G01B17/00

    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。

    GAS METER APPARATUS
    2.
    发明申请
    GAS METER APPARATUS 审中-公开
    气体计量仪

    公开(公告)号:US20130269429A1

    公开(公告)日:2013-10-17

    申请号:US13993446

    申请日:2011-05-20

    IPC分类号: G01F3/22

    摘要: A gas meter apparatus of the present invention comprises a flow measuring device which measures a gas flow; a measurement value calculating section and a liquid crystal display section which are configured to calculate an integrated value of the measured gas flow and electrically display the integrated value. Every time the measurement value calculating section determines that the integrated value has reached 1 liter, it informs a light emission commanding section of determination result. In response to this information, the light emission commanding section causes a LED light emitting section to emit light toward a sensor. Therefore, the gas meter apparatus is able to conduct a test by a test method in which a change in the displayed integrated value of the gas flow can be known from reflected light of emitted light, even when the integrated value of the gas flow is displayed in a digital form.

    摘要翻译: 本发明的燃气表装置包括测量气体流量的流量测量装置; 测量值计算部分和液晶显示部分,其被配置为计算所测量的气体流量的积分值,并且电显示积分值。 每当测量值计算部分确定积分值已经达到1升时,它向发光指令部分通知确定结果。 响应于该信息,发光指令部使LED发光部朝向传感器发光。 因此,燃气表装置能够通过试验方法进行试验,即使在显示气体流量的积分值的情况下,也可以从发射光的反射光中知道所显示的气体流量的积分值的变化 以数字形式。

    FLOW METER DEVICE
    3.
    发明申请
    FLOW METER DEVICE 有权
    流量计装置

    公开(公告)号:US20120185183A1

    公开(公告)日:2012-07-19

    申请号:US13499258

    申请日:2010-09-30

    IPC分类号: G01F1/66 G06F19/00

    CPC分类号: G01F1/667 G01F1/66 G01F1/668

    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。

    Color image forming device
    4.
    发明授权
    Color image forming device 失效
    彩色图像形成装置

    公开(公告)号:US5933184A

    公开(公告)日:1999-08-03

    申请号:US768567

    申请日:1996-12-18

    摘要: A color image forming device that can certainly correct uniform velocity error associated with the characteristic of each optical system and can realize high-quality color image printing by performing a fine laser beam irradiating position control, in consideration of an error in surface accuracy of each mirror surface of a rotary polygon mirror. The color image forming device includes a storage unit for holding uniform velocity correction data previously created for each mirror surface of a rotary polygon mirror to correct a distortion in expansion or contraction of the electrostatic latent image in the main scanning direction due to the characteristic of an optical system, and an image clock generating unit for reading uniform velocity correction data on each mirror surface used in the rotary polygon mirror at a scanning time out of the storage unit and then generating image clock pulses for image signal creation with a period corresponding to the uniform velocity correction data. The color image forming device is applicable to printers of electro-photographic systems, electrostatic-recording systems, and the like.

    摘要翻译: 考虑到每个镜子的表面精度误差,可以确实地校正与每个光学系统的特性相关的均匀速度误差的彩色图像形成装置,并且可以通过执行精细激光束照射位置控制来实现高质量彩色图像打印 旋转多面镜的表面。 彩色图像形成装置包括:存储单元,用于保持先前为旋转多面镜的每个镜面形成的均匀速度校正数据,以校正主扫描方向上的静电潜像的膨胀或收缩的变形,这是由于 光学系统和图像时钟产生单元,用于在存储单元的扫描时间读取在旋转多面镜中使用的每个镜面上的均匀速度校正数据,然后产生用于图像信号产生的图像时钟脉冲, 均匀速度校正数据。 彩色图像形成装置适用于电子照相系统,静电记录系统等的打印机。

    FLOW METER DEVICE
    5.
    发明申请
    FLOW METER DEVICE 有权
    流量计装置

    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。

    Flow-rate measurement device
    6.
    发明授权
    Flow-rate measurement device 有权
    流量测量装置

    公开(公告)号:US09239256B2

    公开(公告)日:2016-01-19

    申请号:US13821879

    申请日:2011-10-20

    IPC分类号: G01F1/66

    CPC分类号: G01F1/66 G01F1/667 G01F1/668

    摘要: A flow-rate measurement device includes a first transducer and a second transducer which are provided in a fluid flow path to transmit and receive an ultrasonic signal, a timer unit which measures a propagation time of the ultrasonic signal propagating between the first transducer and the second transducer, and a flow-rate calculation unit which executes a unit measurement step a predetermined number of times and calculates a flow rate of a fluid flowing in the fluid flow path on the basis of the propagation times measured the predetermined number of times, the unit measurement step being an operation in which a direction of transmission to reception between the first transducer and the second transducer is switched and the timer unit measures the propagation times of the ultrasonic signal in both directions. The flow-rate calculation unit measures a flow rate value of the fluid by a precise measurement step in which the unit measurement step is executed a plural number of times to calculate the flow-rate and an exploratory measurement step in which the unit measurement step is executed a smaller number of times than the number of executions in the precise measurement step to calculate the flow rate.

    摘要翻译: 流量测量装置包括设置在流体流动路径中以发送和接收超声波信号的第一换能器和第二换能器,测量在第一换能器和第二换能器之间传播的超声波信号的传播时间的定时器单元 换能器和流量计算单元,其执行单位测量步骤预定次数,并且基于在预定次数测量的传播时间来计算在流体流路中流动的流体的流量,单元 测量步骤是其中切换第一换能器和第二换能器之间的接收的发送方向的操作,并且定时器单元测量超声信号在两个方向上的传播时间。 流量计算单元通过精确的测量步骤来测量流体的流量值,其中执行单位测量步骤多次以计算流量,以及探测测量步骤,其中单元测量步骤是 执行比精确测量步骤中执行次数少的次数来计算流量。

    FLOW-RATE MEASUREMENT DEVICE
    7.
    发明申请
    FLOW-RATE MEASUREMENT DEVICE 有权
    流量测量装置

    公开(公告)号:US20130167656A1

    公开(公告)日:2013-07-04

    申请号:US13821879

    申请日:2011-10-20

    IPC分类号: G01F1/66

    CPC分类号: G01F1/66 G01F1/667 G01F1/668

    摘要: A flow-rate measurement device includes a first transducer and a second transducer which are provided in a fluid flow path to transmit and receive an ultrasonic signal, a timer unit which measures a propagation time of the ultrasonic signal propagating between the first transducer and the second transducer, and a flow-rate calculation unit which executes a unit measurement step a predetermined number of times and calculates a flow rate of a fluid flowing in the fluid flow path on the basis of the propagation times measured the predetermined number of times, the unit measurement step being an operation in which a direction of transmission to reception between the first transducer and the second transducer is switched and the timer unit measures the propagation times of the ultrasonic signal in both directions. The flow-rate calculation unit measures a flow rate value of the fluid by a precise measurement step in which the unit measurement step is executed a plural number of times to calculate the flow-rate and an exploratory measurement step in which the unit measurement step is executed a smaller number of times than the number of executions in the precise measurement step to calculate the flow rate.

    摘要翻译: 流量测量装置包括设置在流体流动路径中以发送和接收超声波信号的第一换能器和第二换能器,测量在第一换能器和第二换能器之间传播的超声波信号的传播时间的定时器单元 换能器和流量计算单元,其执行单位测量步骤预定次数,并且基于在预定次数测量的传播时间来计算在流体流路中流动的流体的流量,单元 测量步骤是其中切换第一换能器和第二换能器之间的接收的发送方向的操作,并且定时器单元测量超声信号在两个方向上的传播时间。 流量计算单元通过精确的测量步骤来测量流体的流量值,其中执行单位测量步骤多次以计算流量,以及探测测量步骤,其中单元测量步骤是 执行比精确测量步骤中执行次数少的次数来计算流量。

    Flow meter device
    10.
    发明授权

    公开(公告)号:US09846065B2

    公开(公告)日:2017-12-19

    申请号:US13499258

    申请日:2010-09-30

    IPC分类号: G01F1/66

    CPC分类号: G01F1/667 G01F1/66 G01F1/668

    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 and a second transducer, and a time measuring means 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 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. A determiner means 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.