公开(公告)号：US06762897B1

公开(公告)日：2004-07-13

申请号：US09486894

申请日：2000-05-23

申请人： Takefumi Kabashima ,  Kazunari Matsuzaki ,  Tomohiro Matsuo ,  Tsuyoshi Asanuma

发明人： Takefumi Kabashima ,  Kazunari Matsuzaki ,  Tomohiro Matsuo ,  Tsuyoshi Asanuma

IPC分类号： G11B1518

CPC分类号： G01D5/2451 ,  G01D5/145

摘要： A magnetic encoder apparatus comprises a permanent magnet 2 fixed to a rotating body 1, a magnetic field detection element 4 which is opposed to the permanent magnet 2 through an air gap and attached to a fixed body 3, and a signal processing circuit to process a signal from the magnetic field detection element 4. The permanent magnet 2 is formed into disk-like, and magnetized in one direction which is perpendicular to the shaft of the rotating body 1. The magnetic field detection element 4 is arranged on the outer peripheral side of the permanent magnet 2 through an air gap. Further, the fixed body 3 is formed by a ring-like magnetic substance, and an air gap is provided in the circumferential direction, and the magnetic field detection element may be provided in the air gap portion. Accordingly, a magnetic encoder apparatus in which the structure is simple, the resolution is very high, the accuracy is high, and the size is small, can be obtained.

摘要翻译： 磁编码器装置包括固定在旋转体1上的永久磁铁2，通过气隙与固定体3相对的永磁体2的磁场检测元件4，以及附着于固定体3的信号处理电路 来自磁场检测元件4的信号。永磁体2形成为盘状，并且在垂直于旋转体1的轴的一个方向上被磁化。磁场检测元件4布置在外周侧 的永磁体2通过气隙。 此外，固定体3由环状磁性物质形成，并且在圆周方向上设置气隙，并且磁场检测元件可设置在气隙部分中。 因此，结构简单，分辨率非常高，精度高，尺寸小的磁编码器装置。

公开(公告)号：US07042211B2

公开(公告)日：2006-05-09

申请号：US10492846

申请日：2002-10-15

申请人： Takefumi Kabashima ,  Kazunari Matsuzaki ,  Koji Uemura ,  Takashi Nagase

发明人： Takefumi Kabashima ,  Kazunari Matsuzaki ,  Koji Uemura ,  Takashi Nagase

IPC分类号： G01B7/30

CPC分类号： G01D5/245 ,  G01D5/04 ,  G01D5/2451

摘要： A multirotation type encoder of the invention includes a first encoder 20 attached to a rotating shaft 11 of a rotating machine 10 for detecting an absolute value rotational angle within one rotation, and a second encoder for counting a multirotation amount of the rotating shaft 11 by using a speed reducing mechanism 30 by magnetic coupling and the second encoder 40 is constituted by a first magnetic gear 31 directly connected to the rotating shaft and magnetized in multiple poles and at least one second magnetic gear 32 arranged to be opposed thereto in noncontact and magnetized in multiple poles by a number of magnetic poles larger than that of the first magnetic gear 31 and is constituted to count a multirotation amount by detecting a rotational angle of the second magnetic gear by the second encoder.

摘要翻译： 本发明的多旋转型编码器具有安装在旋转机械10的旋转轴11上的第一编码器20，用于检测一个旋转内的绝对值旋转角度;第二编码器，通过使用第二编码器20对旋转轴11的多旋转量进行计数 通过磁耦合的减速机构30，第二编码器40由直接连接到旋转轴并被多个磁体磁化的第一磁齿轮31和与其相对设置而非接触并被磁化的至少一个第二磁齿轮32构成 通过多个磁极大于第一磁齿轮31的磁极的多个磁极，并且通过由第二编码器检测第二磁齿轮的旋转角度来计数多旋转量。

公开(公告)号：US4160591A

公开(公告)日：1979-07-10

申请号：US877747

申请日：1978-02-14

申请人： Toyotoshi Suzuki ,  Kazunari Matsuzaki

发明人： Toyotoshi Suzuki ,  Kazunari Matsuzaki

IPC分类号： G03B17/42 ,  G03B9/08 ,  G03B9/40 ,  G03B9/58

CPC分类号： G03B9/40 ,  G03B9/58

摘要： A camera with a shutter including opening and closing blades releasable, respectively, in response to a mechanical actuation and exposure control circuit for making an exposure which is assured by energizing the solenoid of an electromagnet with power supply from a battery. When the voltage of the battery drops below a satisfactory operating level, the opening blade is locked in automatic response to the mechanical actuation, and a shutter charging and film winding mechanism is no longer effective to operate, thereby preventing wasteful consumption of film due to blank exposures. Upon removal of the battery from a chamber therefor, the shutter charging and film winding mechanism is rendered again effective, and the release of the closing blade is mechanically retarded for a certain length of time from the mechanical release actuation of the opening blade.

摘要翻译： 一种具有快门的照相机，其包括分别响应于机械致动和曝光控制电路而释放的打开和关闭叶片，所述机械致动和曝光控制电路用于通过来自电池的电源向电磁体的螺线管通电来确保曝光。 当电池的电压下降到令人满意的操作水平以下时，开启刀片被锁定在对机械致动的自动响应中，并且快门充电和胶片卷绕机构不再有效地操作，从而防止由于空白造成的电影浪费 曝光。 在从其室中取出电池时，快门充电和胶片卷绕机构再次有效，并且关闭叶片的释放在机械上延迟了从开启叶片的机械释放致动一段时间。

公开(公告)号：US06937008B2

公开(公告)日：2005-08-30

申请号：US10640628

申请日：2003-08-14

申请人： Kazunari Matsuzaki ,  Takashi Nagase

发明人： Kazunari Matsuzaki ,  Takashi Nagase

IPC分类号： G01B7/30 ,  G01B7/00 ,  G01D5/14

CPC分类号： G01D5/145

摘要： A rotating angle detector (10) according to the invention comprises magnetic field generating means for rotating integrally with a detected member and uniformly generating a magnetic field in one direction perpendicularly to a rotating axis in a stationary state, and at least two magnetic sensors (41), (42), (43) and (44) provided to generate one sine wave for one rotation of the magnetic field generating means respectively, wherein input current terminals (61), (62), (63) and (64) of the magnetic sensor are connected in series.Moreover, it is also possible to employ such a structure that at least two signal differential amplifying means are arranged on a substrate provided with at least two magnetic sensors and there is provided a circuit wiring for causing an output sent from each of the magnetic sensors to pass through the signal differential amplifying means. Furthermore, it is also possible to employ such a structure that all the input current terminals of the magnetic sensor of an apparatus provided with a plurality of rotating angle detectors are connected in series.

摘要翻译： 根据本发明的旋转角度检测器（10）包括磁场产生装置，用于与检测到的构件一体地旋转并且在静止状态下沿垂直于旋转轴的一个方向均匀地产生磁场，以及至少两个磁性传感器（41 ），（42），（43）和（44）分别产生用于磁场产生装置的一个旋转的正弦波，其中输入电流端子（61），（62），（63）和（64） 磁传感器串联连接。 此外，还可以采用这样一种结构，使得至少两个信号差分放大装置被布置在设置有至少两个磁性传感器的基板上，并且设置有用于使从每个磁传感器发送的输出的电路布线 通过信号差分放大装置。 此外，也可以采用这样一种结构，使得设置有多个旋转角度检测器的装置的磁传感器的所有输入电流端子串联连接。