Vibrating type transducer
    1.
    发明授权
    Vibrating type transducer 失效
    振动式传感器

    公开(公告)号:US5009108A

    公开(公告)日:1991-04-23

    申请号:US423042

    申请日:1989-10-18

    IPC分类号: G01K7/32 G01L9/00 H04R23/00

    摘要: A vibrating type transducer wherein an H-shaped vibrator, formed integrally with a silicon substrate and having a hollow chamber provided therearound, is kept self oscillating at its natural resonance frequency together with an amplifier. A physical quantity, such as force, pressure, differential pressure, or the like, which is applied to the silicon substrate is detected by a change in the natural frequency arising at the vibrator corresponding to the physical quantity. The invention also includes a method for manufacturing such transducer using a semiconductor technique, including steps for keeping a vacuum internally in the hollow chamber, imparting an initial tension to the vibrator, and then operating the amplifier to have stable self oscillation.

    摘要翻译: 一种振动型换能器,其中与硅衬底一体形成并且具有设置在其周围的中空腔的H形振动器与放大器一起以其固有谐振频率自振荡。 通过对应于物理量的振动器产生的固有频率的变化来检测施加到硅衬底的力,压力,压差等的物理量。 本发明还包括一种使用半导体技术制造这种换能器的方法,包括在中空室中内部保持真空,向振动器施加初始张力,然后操作放大器以使其具有稳定的自振荡的步骤。

    Process for manufacturing a vibrating type transducer
    2.
    发明授权
    Process for manufacturing a vibrating type transducer 失效
    制造振动型传感器的方法

    公开(公告)号:US4966649A

    公开(公告)日:1990-10-30

    申请号:US424510

    申请日:1989-10-20

    摘要: A vibrating type transducer wherein an H-shaped vibrator, formed integrally with a silicon substrate and having a hollow chamber provided therearound, is kept self oscillating at its natural resonance frequency together with an amplifier. A physical quantity, such as force, pressure, differential pressure, or the like, which is applied to the silicon substrate is detected by a change in the natural frequency arising at the vibrator corresponding to the physical quantity. The invention also includes a method for manufacturing such transducer using a semiconductor technique, including steps for keeping a vacuum internally in the hollow chamber, imparting an initial tension to the vibrator, and then operating the amplifier to have stable self oscillation.

    摘要翻译: 一种振动型换能器,其中与硅衬底一体形成并且具有设置在其周围的中空腔的H形振动器与放大器一起以其固有谐振频率自振荡。 通过对应于物理量的振动器产生的固有频率的变化来检测施加到硅衬底的力,压力,压差等的物理量。 本发明还包括一种使用半导体技术制造这种换能器的方法,包括在中空室中内部保持真空,向振动器施加初始张力,然后操作放大器以使其具有稳定的自振荡的步骤。

    Oscillator using H-shaped single crystal silicon vibrator
    3.
    发明授权
    Oscillator using H-shaped single crystal silicon vibrator 失效
    振荡器采用H型单晶硅振荡器

    公开(公告)号:US4926143A

    公开(公告)日:1990-05-15

    申请号:US245681

    申请日:1988-09-16

    摘要: A vibrating type transducer wherein an H-shaped vibrator, formed integrally with a silicon substrate and having a hollow chamber provided therearound, is kept self oscillating at its natural resonance frequency together with an amplifier. A physical quantity, such as force, pressure, differential pressure, or the like, which is applied to the silicon substrate is detected by a change in the natural frequency arising at the vibrator corresponding to the physical quantity. The invention also includes a method for manufacturing such transducer using a semiconductor technique, including steps for keeping a vacuum internally in the hollow chamber, imparting an initial tension to the vibrator, and then operating the amplifier to have stable self oscillation.

    摘要翻译: 一种振动型换能器,其中与硅衬底一体形成并且具有设置在其周围的中空腔的H形振动器与放大器一起以其固有谐振频率自振荡。 通过对应于物理量的振动器产生的固有频率的变化来检测施加到硅衬底的力,压力,压差等的物理量。 本发明还包括一种使用半导体技术制造这种换能器的方法,包括在中空室中内部保持真空,向振动器施加初始张力,然后操作放大器以使其具有稳定的自振荡的步骤。

    Silicon resonant type pressure sensor
    4.
    发明申请
    Silicon resonant type pressure sensor 有权
    硅谐振式压力传感器

    公开(公告)号:US20050279175A1

    公开(公告)日:2005-12-22

    申请号:US11153665

    申请日:2005-06-15

    IPC分类号: G01L9/00

    CPC分类号: G01L9/0019

    摘要: A silicon resonant type pressure sensor has a sensing diaphragm to which a measuring pressure is to be applied; and a vibrating beam which is embedded on the sensing diaphragm, and which is made of a semiconductor, wherein the vibrating beam further has a vibrating beam body having first and second vibrating beams which are allocated in parallel each other, and at least one connecting beam portion which couples the first vibrating beam and the second vibrating beam, a driving vibrating beam portion which is fabricated on a side of at least one side face in an axial direction of the first and second vibrating beams, and which is made of a conductor, and detection vibrating beam portions which are fabricated on sides of another side face in the axial direction of the first and second vibrating beams respectively, and which are made of a conductor.

    摘要翻译: 硅谐振型压力传感器具有要施加测量压力的感测膜片; 以及振动梁,其嵌入在所述检测膜上,并且由半导体制成,其中所述振动梁还具有振动梁主体,所述振动梁主体具有彼此平行分配的第一和第二振动梁,以及至少一个连接梁 连接第一振动梁和第二振动梁的部分,驱动振动梁部分,其制造在第一和第二振动梁的轴向方向上的至少一个侧面的一侧上,并且由导体制成, 以及检测振动梁部分,其分别制造在第一和第二振动梁的轴向上的另一个侧面的侧面上,并且由导体制成。

    Liquid development electrophotographic device
    5.
    发明授权
    Liquid development electrophotographic device 失效
    液体显影电子照相装置

    公开(公告)号:US06898404B2

    公开(公告)日:2005-05-24

    申请号:US10466485

    申请日:2002-08-05

    IPC分类号: G03G15/11 G03G15/10

    摘要: A liquid-development electrophotographic apparatus forms on a toner-image-bearing body a plurality of color images developed by a plurality of developing units, one for each color, that use liquid toner. One or more carrier-removing units for removing excessive carrier from a toner layer that forms a toner image are disposed downstream of each developing unit and upstream of the next developing unit disposed upstream of the former developing unit with respect to a process progress direction. Each carrier-removing unit includes two or more conductive collection rollers to which a bias voltage is applied in such a direction as to press toner against the toner-image-bearing body and which is brought into contact with the toner-image-bearing body. The upstream roller is rotated in the same direction as the direction of surface movement of the toner-image-bearing body, whereas the downstream roller is rotated in the opposite direction. The result is that influence of carrier on the already transferred image is suppressed, and hence occurrences of irregular transfer of the images and occurrences of disturbance of the already transferred image are minimized.

    摘要翻译: 液体显影电子照相设备在调色剂图像承载体上形成由多个显影单元显影的多个彩色图像,每个显影单元一个用于各种颜色,使用液体调色剂。 一个或多个用于从形成调色剂图像的调色剂层除去过量载体的载体去除单元设置在每个显影单元的下游,并且相对于处理进行方向设置在位于前显影单元上游的下一个显影单元的上游。 每个载体移除单元包括两个或更多个导电收集辊,偏压在该方向上施加,以将调色剂压靠在调色剂图像承载体上并与调色剂图像承载体接触。 上游辊沿着与调色剂图像承载体的表面运动方向相同的方向旋转,而下游辊沿相反方向旋转。 结果是,载波对已经传送的图像的影响被抑制,因此图像的不规则传送和已经传送的图像的干扰出现的发生被最小化。

    Control apparatus for power converter
    7.
    发明授权
    Control apparatus for power converter 有权
    电源转换器控制装置

    公开(公告)号:US06288921B1

    公开(公告)日:2001-09-11

    申请号:US09639882

    申请日:2000-08-17

    IPC分类号: H02M75387

    摘要: A control apparatus for a power converter having a plurality of semiconductor switching devices that converts DC power into AC power and outputs three levels of voltages, including a command voltage generator configured to output a command voltage vector that represents a voltage to be output from the power converter, an integrator configured to calculate a difference integral vector by integrating a difference between the command voltage vector and an output voltage vector that represents a voltage command for the power converter, a difference vector calculator configured to calculate difference vectors by subtracting the command voltage vector from each of the possible output voltage vectors, a vector selector configured to select one of the possible output voltage vectors which corresponds to one of the difference vectors making the largest angle with the difference integral vector as the output voltage vector only if the difference integral vector exceeds a predetermined value, and a gate signal generator configured to determine one of switching states that includes a plurality of ON-OFF pattern signals for turning on and off the semiconductor switching devices on the basis of the output voltage vector.

    摘要翻译: 一种用于功率转换器的控制装置,具有多个半导体开关器件,其将DC电力转换为AC电力并输出三个电压电平,包括命令电压发生器,其被配置为输出表示从功率输出的电压的指令电压矢量 转换器,积分器,被配置为通过积分指示电压矢量和表示电力转换器的电压指令的输出电压矢量之间的差来计算差分积分矢量;差分矢量计算器,被配置为通过减去指令电压矢量 从每个可能的输出电压矢量,矢量选择器被配置为选择一个可能的输出电压矢量,该输出电压矢量对应于与差积分矢量产生最大角度的一个差分矢量作为输出电压矢量,只有当差积分矢量 超过预定值, 门信号发生器,其被配置为基于输出电压矢量来确定包括用于接通和断开半导体开关器件的多个导通和截止图案信号的开关状态之一。

    Wiping device
    8.
    发明授权
    Wiping device 失效
    擦拭装置

    公开(公告)号:US4274175A

    公开(公告)日:1981-06-23

    申请号:US948411

    申请日:1978-10-04

    申请人: Tadashi Nishikawa

    发明人: Tadashi Nishikawa

    摘要: A wiping device for wiping windowpanes, particularly the windshield of an automobile. The device comprises an annular belt adapted to revolve along the entire periphery of a windowpane, and a wiper blade joined at its opposite ends to the annular belt and extending across the windowpane.

    摘要翻译: 用于擦拭窗玻璃的擦拭装置,特别是汽车的挡风玻璃。 该装置包括适于沿着窗玻璃的整个周边旋转的环形带,以及在其相对端部处连接到环形带并延伸穿过窗玻璃的刮水片。