CN2296024Y - 数字信号输出装置 - Google Patents
数字信号输出装置 Download PDFInfo
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- CN2296024Y CN2296024Y CN97202457U CN97202457U CN2296024Y CN 2296024 Y CN2296024 Y CN 2296024Y CN 97202457 U CN97202457 U CN 97202457U CN 97202457 U CN97202457 U CN 97202457U CN 2296024 Y CN2296024 Y CN 2296024Y
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- 230000003287 optical effect Effects 0.000 claims description 27
- 230000007547 defect Effects 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- 229910052799 carbon Inorganic materials 0.000 description 11
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- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
- G01D5/34707—Scales; Discs, e.g. fixation, fabrication, compensation
- G01D5/34715—Scale reading or illumination devices
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Abstract
本实用新型公开了一种可将转动的方向与转动角度的大小利用光电元件转换为数字信号输出的数字信号输出装置。该装置主要是将发光器的光透过一透明转轮投射于数个光感应器上,由透明转轮外环的轮齿与齿间的不同导光性,在转动时可使数个光感应器分别呈现出动作或不动作状态,再经由放大电路得到数字信号输出。藉由该输出信号可判断出转动的方向与转动角度的大小,能替代传统的可变电位器运用于监视器上的垂直、水平同步调整,或是音响的音量、高低音调整等,并避免了现有的摩擦损耗与体积大等缺点。
Description
本实用新型涉及一种数字信号输出装置,特别是指一种可将转动的方向与转动角度的大小利用光电元件转换成数字信号输出的装置。
常见的可变电位器如图1所示,主要包含有碳膜10、碳刷11、输出端12等部分,碳膜10与碳刷11相互接触,当碳刷11被转动时输出端12可得到大小不同的电阻值变化,再连接到放大电路转换为数字信号输出,达到控制电路的目的。它在使用时存在以下缺点:第一,由于以接触方式取得转动的方向与转动角度的大小的不同阻值,转动时碳膜10与碳刷11的摩擦将导致彼此的损耗,降低装置的使用寿命:第二,为使碳膜10与碳刷11有良好的接触,装置体积无法缩小,且每一圈的信号输出组数也不能太多。
鉴于常见的数字信号输出装置有上述缺点,因此,本实用新型的目的就在于提供一种将转动的方向与转动角度的大小利用光电元件转换为数字信号输出的装置。
为达到上述目的,本实用新型数字信号输出装置由转轴、发光器、透明转轮、一个以上光感应器等构成;其中透明转轮外环处设置有一个以上轮齿,两轮齿间为一齿间,且在轮齿内侧设有一环绕轴心的斜面,该透明转轮固设于转轴上;一个以上光感应器设置于透明转轮的外侧且沿转动方向呈并列设置并与发光器成一个角度。
所述的光感应器输出端连接放大电路的输入端。
所述的转轴可以手动旋转或连接电动机旋转。
由此可见,本实用新型的数字信号输出装置确实具有将转动的方向与转动角度的大小利用光电元件转换为数字信号输出的功效,可以改进现有的摩擦损耗、体积无法缩小及信号输出组数不能太多的弊端。
以下参照附图对本实用新型做进一步的说明。
图1为常用可变电位器的分解图;
图2为本实用新型数字信号输出装置的剖面俯视图;
图3为本实用新型数字信号输出装置的剖面后视图;
图4为本实用新型数字信号输出装置的电路图;
图5为本实用新型数字信号输出装置的轮齿、齿间导光示意图之一;
图6为本实用新型数字信号输出装置的轮齿、齿间导光示意图之二;
图7为本实用新型数字信号输出装置的轮齿、齿间导光示意图之三;
图8为本实用新型数字信号输出装置的轮齿、齿间导光示意图之四。
附图中元件编号与名称对照详列于下:
10碳膜 11碳刷 12输出端
2转轴
3发光器
4透明转轮
41斜面 42轮齿 43齿间
5数个光感应器
6放大电路
如图2、图3所示,本实用新型主要由转轴2、发光器3、透明转轮4、数个光感应器5等构成,其中,发光器3在本实施例中为一发光二极管置于透明转轮4前方,透明转轮4外环处设置有数个轮齿42,在图中是以设置三十六轮齿为实施例,在两轮齿42间是为一齿间43,剖视时可见透明转轮4后方设有一位于轮齿内侧且环绕轴心的斜面41,透明转轮4固设于转轴2上。
数个光感应器5在本实施例中为光电晶体,设置于透明转轮4的外侧,且光感应器5是依照透明转轮4的转动方向呈并列设置(参照图3),并与发光器3互呈一个角度配置(参见图2)。
当本实用新型数字信号输出装置工作时,发光体3由前方发光照射在透明转轮4的斜面41上,再折射于光感应器5上;由于透明转轮4的轮齿42与齿间43的导光性不一,因此,当透明装轮4转动时光感应器5便分别呈现出动作或不动作状态,并将此光线变化转换为电信号输出,如图4所示,光感应器5的输出端再连接至放大电路6的输入端,由放大电路6的输出端得到数字信号。
参见图5至图8,透明转轮4上各位置对准光感应器5时的输出信号(图中光感应器受光以白色表示,不受光以黑色表示)分别是:
图5:当轮齿42对准两光感应器5时,两光感应器5可接受到光线而呈动作,使放大电路皆呈饱和状态输出(0,0)信号。
图6:当轮齿42对准上光感应器51,上光感应器51可接受到光线而呈动作;齿间43对准下光感应器52,下光感应器52接受不到光线而呈不动作,使得放大电路6分别呈饱和、截止状态输出(0,1)信号。
图7:当齿间43对准两光感应器5时,两光感应器5接受不到光线而呈不动作,使得放大电路6皆呈截止状态输出(1,1)信号。
图8:当齿间43对准上光感应器51,上光感应器51接受不到光线而呈不动作;轮齿42对准下光感应器52,下光感应器52可接受到光线而呈动作,使得放大电路6分别呈截止、饱和状态输出(1,0)信号。
参见图3,当透明转轮4为逆时针旋转时,将依照上述图5、图6、图7、图8的顺序不断重复输出信号;当透明转轮4为顺时针旋转时,将依照图8、图7、图6、图5顺序不断重复输出信号。再将此输出的数字信号连接于数字电路,依照信号出现的顺序及个数,经由对比及计算即可判断出装置转动的方向与转动角度的大小。
另,本装置的转轴2可以手动旋转或连接小型电机旋转,能替代可变电位器运用于监视器上的垂直、水平同步调整或是音响的音量、高低音调整等。
由此可见,本实用新型的数字信号输出装置确实具有将转动的方向与转动角度的大小利用光电元件转换为数字信号输出的功效。利用光电元件转换为数字信号输出,可避免现有的摩擦损耗。且以透明转轮设有三十六个轮齿为实施例,其中每个轮齿配合两光感应器共有四个信号输出,所以整个透明转轮旋转一圈可输出144个信号,是常见的数倍,也因此微小角度的转动亦可被探测出。
Claims (3)
1、一种数字信号输出装置,其特征在于:数字信号输出装置由转轴、发光器、透明转轮、一个以上光感应器等构成;其中透明转轮外环处设置有一个以上轮齿,两轮齿间为一齿间,且在轮齿内侧设有一环绕轴心的斜面,该透明转轮固设于转轴上;一个以上光感应器设置于透明转轮的外侧且沿转动方向呈并列设置并与发光器成一个角度。
2、如权利要求1所述的数字信号输出装置,其特征在于:所述的光感应器输出端连接放大电路的输入端。
3、如权利要求1所述的数字信号输出装置,其特征在于:所述的转轴可以手动旋转或连接电动机旋转。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/641,725 US5691534A (en) | 1996-05-02 | 1996-05-02 | Digital signal ouput device having a transparent gear wheel |
US641,725 | 1996-05-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2296024Y true CN2296024Y (zh) | 1998-10-28 |
Family
ID=24573601
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN97202457U Expired - Fee Related CN2296024Y (zh) | 1996-05-02 | 1997-03-20 | 数字信号输出装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US5691534A (zh) |
CN (1) | CN2296024Y (zh) |
BR (1) | BR7700312U (zh) |
CA (1) | CA2199230A1 (zh) |
FR (1) | FR2748341A3 (zh) |
GB (1) | GB2312742A (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI585372B (zh) * | 2016-02-05 | 2017-06-01 | 曾信得 | 光學掃描式導光編碼器 |
TWI633282B (zh) * | 2016-04-15 | 2018-08-21 | 曾信得 | 正向對焦掃描式導光編碼器 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3780267A (en) * | 1972-05-23 | 1973-12-18 | Bell Telephone Labor Inc | Optical tape reader using cylindrical lens as tape drive wheel |
DE3921756C1 (zh) * | 1989-07-01 | 1991-01-03 | Teldix Gmbh, 6900 Heidelberg, De | |
US5384460A (en) * | 1993-11-03 | 1995-01-24 | Silitek Corporation | Encoder with a light emitting editing wheel |
-
1996
- 1996-05-02 US US08/641,725 patent/US5691534A/en not_active Expired - Fee Related
-
1997
- 1997-02-27 GB GB9704061A patent/GB2312742A/en not_active Withdrawn
- 1997-03-05 CA CA002199230A patent/CA2199230A1/en not_active Abandoned
- 1997-03-07 FR FR9702745A patent/FR2748341A3/fr active Pending
- 1997-03-20 CN CN97202457U patent/CN2296024Y/zh not_active Expired - Fee Related
- 1997-04-03 BR BR7700312U patent/BR7700312U/pt not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
US5691534A (en) | 1997-11-25 |
FR2748341A3 (fr) | 1997-11-07 |
GB2312742A (en) | 1997-11-05 |
GB9704061D0 (en) | 1997-04-16 |
BR7700312U (pt) | 1998-11-03 |
CA2199230A1 (en) | 1997-11-02 |
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