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18 条记录 (耗时 0.007 秒)

    Optical transducer
    5.
    发明公开
    Optical transducer 失效
    光学传感器

    公开(公告)号：EP0067706A3

    公开(公告)日：1987-09-23

    申请号：EP82303086

    申请日：1982-06-15

    申请人： Ing. C. Olivetti & C., S.p.A.

    发明人： Carena, Ugo ,  Boella, Marcello ,  Rivera, Paolo

    IPC分类号： G01D05/36 ,  G01D05/34

    CPC分类号： G01D5/3473

    摘要： An optical transducer for detecting the angular position of a rotary member with respect to a fixed structure comprises a disc 13 mounted rotatably within a casing. The disc is provided with a plurality of opaque radial regions 19 which are spaced by transparent regions 18 which transmit the light emitted by a light source mounted on the casing. The light is received by a photodetector element 25 comprising a support plate 28 on which is disposed a multiplicity of photovoltaic cells 26 each having an area which is fraction of the area of each transparent region of the disc. The cells are subdivided into three groups A, B and C with different functions and phase positions and are distributed diffusely over the area encountered by the beam of light from the light source. The cells of each group are connected together in parallel to generate three electrical signals, one of which provides pilot control for the feed to the light source to stabilise the signals of the other two groups of photoelectric cells.

    Optical rotary encoder
    6.
    发明公开
    Optical rotary encoder 无效
    光学旋转编码器

    公开(公告)号：EP0102241A3

    公开(公告)日：1985-10-16

    申请号：EP83304927

    申请日：1983-08-25

    申请人： SHARP KABUSHIKI KAISHA

    发明人： Ebina, Kiyoshi ,  Nakao, Kazuhiro ,  Tani, Zempei

    IPC分类号： G01D05/36 ,  G01P13/04 ,  H03K13/18 ,  G01D05/245

    CPC分类号： G01D5/24476 ,  G01D5/36 ,  G01P3/486 ,  H03M1/30

    摘要： An optical rotary encoder includes a slit plate having a plurality of circumferentially aligned slits of a pitch P, a light emitting diode, and a light responsive section. The light responsive section includes four photodiodes formed on a single substrate. The four photodiodes are aligned in the tangential direction of the slit plate with the interval corresponding to 1/4 P. Output signals derived from each of the four photodiodes are introduced into a detection circuit for determining the angular position and velocity of a rotating shaft to which the slit plate is secured.

    A digital reading micrometer
    7.
    发明公开
    A digital reading micrometer 失效
    数字读取微型计算机

    公开(公告)号：EP0044823A3

    公开(公告)日：1983-08-24

    申请号：EP81830126

    申请日：1981-07-20

    申请人： S.T.A. Sviluppo Technologie Avanzate S.p.A.

    发明人： Brecciaroli, Roberto

    IPC分类号： G01B03/18 ,  G01D05/36

    CPC分类号： G01D5/363 ,  G01B3/18 ,  G01D5/3473

    摘要： A digital-reading micrometer, portable and self-contained, comprising a sliding micrometer screw, as well as an opto-electronic system in order to visually display in a digital form the reading of the effected micrometric measurement of a length.

    摘要翻译： 数字读数测微计，便携式和独立式，包括滑动千分尺螺丝，以及光电子系统，以便以数字形式可视地显示长度的影响的测微测量。

    Encoder
    8.
    发明公开
    Encoder 失效
    编码器

    公开(公告)号：EP0039082A3

    公开(公告)日：1982-06-09

    申请号：EP81103189

    申请日：1981-04-28

    申请人： TOKYO KOGAKU KIKAI KABUSHIKI KAISHA

    发明人： Minami, Masana ,  Tamaki, Hiroshi ,  Sasaki, Tsuneo ,  Kimura, Kazuaki

    IPC分类号： G08C09/06 ,  G01D05/36 ,  G01D05/245 ,  H03K13/18

    CPC分类号： G01D5/36 ,  G01D5/2457 ,  H03M1/287

    摘要： An encoder has an optical measuring part establishing a vernier relationship between a code plate (1) and a line sensor (5), and counters (12,17) for obtaining a coarse reading from time serial output signals of the line sensor (5) and a fine reading from the vernier relationship. Correction data including a change component in a magnification of a lens system (4) is obtained from a counter (23). The correction data and the fine reading are supplied to a converting circuit (13a) to provide a corrected fine reading.