Flow rate measurement device
    36.
    发明授权
    Flow rate measurement device 有权
    流量测量装置

    公开(公告)号:US08548755B2

    公开(公告)日:2013-10-01

    申请号:US13139425

    申请日:2009-12-25

    CPC classification number: G01F1/667

    Abstract: Switching a transmitting and receiving direction of two transducers (2,3) in the forward and the reverse direction, a time differential memory part (17b) storing a propagation time differential every K times a unit measurement process being executed, the propagation time differential being a differential between a propagation time of the ultrasonic wave signal in a forward direction and in a reverse direction, a flow rate calculating part (15) calculating a flow rate of a passing fluid based on a lump sum of propagation times in both the forward and the reverse directions obtained at least every K times of a unit measurement process being executed, an estimating part (18) estimating a change in a momentary flow rate of the fluid based on the time differential obtained every K times of the unit measurement process being executed and storing thereof in a time differential memory part (17b), thus obtaining an accurate flow rate and detecting the change in the momentary flow rate.

    Abstract translation: 在正向和反向切换两个换能器(2,3)的发送和接收方向的时间差分存储器部分(17b)每执行一个单位测量过程每K次存储传播时间差,传播时间差为 超声波信号在正向和反向的传播时间之间的差分,流量计算部分(15),基于传播时间的一次总和来计算流过的流体的流量 执行单元测量处理的至少每K次获得的相反方向,基于执行的单位测量处理每K次获得的时间差估计流体的瞬时流量变化的估计部(18) 并将其存储在时间差分存储部分(17b)中,从而获得准确的流量并检测瞬时流量的变化。

    OSCILLATION CIRCUIT
    39.
    发明申请
    OSCILLATION CIRCUIT 失效
    振荡电路

    公开(公告)号:US20110226067A1

    公开(公告)日:2011-09-22

    申请号:US13132556

    申请日:2009-12-16

    Applicant: Daisuke Bessho

    Inventor: Daisuke Bessho

    CPC classification number: H03B5/30 G01F1/667 H03B5/06 H03K3/014 H03K3/0307

    Abstract: An oscillation circuit has an oscillator having a resonant frequency, an amplifier connected to the oscillator, an energizing pulse generator for generating a energizing pulse within a certain range including the resonant frequency, a switching unit for switching between connection and disconnection of the energizing pulse generator and the oscillator, and the amplifier, and a motion command unit for sending a command signal to the energizing pulse generator for starting operation, in which the switching unit connects the oscillator and the energizing pulse generator during a cycle, a half cycle, or several cycles of the energizing pulse generated by the energizing pulse generator starting at a time when the motion command unit sends the motion signal.

    Abstract translation: 振荡电路具有谐振频率的振荡器,连接到振荡器的放大器,用于在包括谐振频率的一定范围内产生激励脉冲的激励脉冲发生器,用于在激励脉冲发生器的连接和断开之间切换的切换单元 以及振荡器和放大器,以及运动命令单元,用于向用于启动操作的激励脉冲发生器发送命令信号,其中切换单元在周期,半周期或几个周期内连接振荡器和激励脉冲发生器 由运动命令单元发送运动信号时由激励脉冲发生器产生的通电脉冲的周期。

    Switching power supply for high frequency heating apparatus
    40.
    发明授权
    Switching power supply for high frequency heating apparatus 失效
    高频加热设备开关电源

    公开(公告)号:US5977530A

    公开(公告)日:1999-11-02

    申请号:US30611

    申请日:1998-02-25

    CPC classification number: H05B6/685 H02M3/33569 H02M7/537 Y02B40/143

    Abstract: A switching device is employed in a power supply for driving a magnetron with lower withstand voltage and better controllability. A high frequency heating apparatus comprises a power supply, a leakage transformer connected to the power supply, a first switching device connected in series to a primary coil side of the leakage transformer, a first capacitor, a series circuit of a second capacitor and a second switching device, a driving circuit having an oscillator for driving the first switching device and the second switching device, a rectifier connected to a secondary coil side of the leakage transformer, and a magnetron connected to the rectifier. With this configuration, voltage applied to the first switching device can be clamped, and at the same time, the OFF time can be freely adjustable by the effect of the second capacitor and the second semiconductor switching device.

    Abstract translation: 在用于驱动具有较低耐受电压和更好的可控性的磁控管的电源中采用开关装置。 高频加热装置包括电源,连接到电源的泄漏变压器,与漏电变压器的初级线圈侧串联连接的第一开关装置,第一电容器,第二电容器的串联电路和第二电容器 开关装置,具有用于驱动第一开关装置的振荡器和第二开关装置的驱动电路,连接到漏电变压器的次级线圈侧的整流器和连接到整流器的磁控管。 利用这种配置,可以钳位施加到第一开关装置的电压,同时可以通过第二电容器和第二半导体开关装置的作用自由地调节关断时间。

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