CN201233612Y - Character wheel of counter for photoelectric recognition - Google Patents
Character wheel of counter for photoelectric recognition Download PDFInfo
- Publication number
- CN201233612Y CN201233612Y CNU2008200497387U CN200820049738U CN201233612Y CN 201233612 Y CN201233612 Y CN 201233612Y CN U2008200497387 U CNU2008200497387 U CN U2008200497387U CN 200820049738 U CN200820049738 U CN 200820049738U CN 201233612 Y CN201233612 Y CN 201233612Y
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- printing opacity
- circular arc
- opacity hole
- wheel
- circumference
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Abstract
A print wheel of a counter used for photoelectric identification relates to a print wheel on a counter in a meter. The print wheel comprises a wheel rim (3), a wheel body (2) and a wheel hub (1), wherein ten digits from zero to nine used for manual reading are distributed on the circular circumferential surface of the wheel rim in sequence, light pervious arc grooves are respectively formed on the two circumferences with different radiuses on the wheel body (2), and the axial center of the wheel hub is taken as the center of circle; two light pervious arc grooves (4) with identical length are symmetrically formed on one of the circumferences, five light pervious arc grooves (5) with identical length are symmetrically formed on the other circumference, and the radius difference of the two circumferences is larger than the width of the light pervious arc grooves. The print wheel can not be affected by the shape of the digits during data identification of a sensor, thereby ensuring accurate readings.
Description
Technical field
The utility model relates to the counter character wheel of measuring instrument, particularly is used for the counter character wheel of photoelectricity recognition technology.
Background technology
The character wheel that adopts utilizes photoelectricity identification printing opacity hole slot and non-printing opacity hole slot to realize the technology of gauging table remote transmitting direct reading function at present, the printing opacity hole slot that distributes according to certain rules on the wheel shaft of gauging table character wheel is also arranged, use the optoelectronic induction method identification pairing numeral of character wheel display window and other correlation technique.The implementation method of these technology is carried out electric signal coding with character wheel by printing opacity hole slot position, coding seldom since the character wheel carry cause sensing device to character wheel from 9 excessively wrong to identification in 0 o'clock, influence reading.
Summary of the invention
The purpose of this utility model is to provide a kind of counter character wheel that is used for photoelectricity identification.
The purpose of this utility model can realize like this, design a kind of counter character wheel that is used for photoelectricity identification, comprise wheel rim, wheel body, wheel hub, be distributed with 0～90 numeral using for artificial reading on the annular circumferential face of wheel rim successively, be to be respectively equipped with circular arc printing opacity hole slot on two different circumference of the center of circle, radius with the wheel hub axle center on the described wheel body, symmetry has five circular arc printing opacity hole slots that symmetry on two the circular arc printing opacity hole slots, another circumference of equal length has equal length on one of them circumference, and the semidiameter of two circumference is greater than the groove width of printing opacity hole slot.
The utility model is because each numeral is corresponding with circular arc printing opacity hole slot, and character wheel rotates a circle, and the digital signal power supply subelement that the optoelectronic induction device that is installed in the character wheel both sides can produce 40 groups of different codings is discerned and read, and it is accurate to reach electronical reading.
Description of drawings
Fig. 1 is the expansion synoptic diagram of the annular circumferential face of the utility model preferred embodiment.
Fig. 2 is the structural representation of the utility model preferred embodiment.
Embodiment
The utility model will be further described below in conjunction with embodiment.
As shown in Figure 1 and Figure 2, a kind of counter character wheel that is used for photoelectricity identification, comprise wheel rim 3, wheel body 2, wheel hub 1, be distributed with 0～90 numeral using for artificial reading on the annular circumferential face of wheel rim successively, be to be respectively equipped with circular arc printing opacity hole slot on two different circumference of the center of circle, radius with the wheel hub axle center on the described wheel body 2, symmetry has symmetry on two the circular arc printing opacity hole slots 4, another circumference of equal length and has the semidiameter of 5, two circumference of five circular arc printing opacity hole slots of equal length greater than the groove width of printing opacity hole slot on one of them circumference.
Because each numeral is corresponding with circular arc printing opacity hole slot, character wheel rotates a circle, and the digital signal power supply subelement that the optoelectronic induction device that is installed in the character wheel both sides can produce 40 groups of different codings is discerned and read, and it is accurate to reach electronical reading.
As shown in Figure 2, the symmetrical circumference that has two circular arc printing opacity hole slots 4 of equal length is the outer ring on the described wheel body, and the circumference that another symmetry has five circular arc printing opacity hole slots 5 of equal length is an inner ring, and the outer ring radius is greater than the inner ring radius.
The symmetrical circumference that has 2 circular arc printing opacity hole slots of equal length is an inner ring on the described wheel body, and the circumference that another symmetry has 5 circular arc printing opacity hole slots of equal length is the outer ring, and the outer ring radius is greater than the inner ring radius.
As shown in Figure 2, the described central angle that is provided with each circular arc printing opacity hole slot 4 on two circular arc printing opacity hole slot circumference is 54 °, and the spacing central angle of two circular arc printing opacity hole slots is 126 °; The described central angle that is provided with each circular arc printing opacity hole slot 5 on 5 circular arc printing opacity hole slot circumference is 36 °, and the spacing central angle of two adjacent circular arc printing opacity hole slots is 36 °.
As shown in Figure 1, described 2 circular arc printing opacity hole slots, 4 respectively corresponding 9～0 digit order numbers and 4～5 digit order numbers; Described 5 circular arc printing opacity hole slots, 5 respectively corresponding 1.5～2.5,3.5～4.5,5.5～6.5,7.5～8.5,9.5～0.5 digit order numbers.
As shown in Figure 2, uniform 20 carry driven tooth 6 on the annular circumferential face of described wheel rim one side are established two carry driving tooths on the annular circumferential face of wheel rim opposite side.
Because each numeral is corresponding with carry tooth and circular arc printing opacity hole slot, character wheel rotates a circle, because the optoelectronic induction device has difference on the electric signal at printing opacity hole slot and non-photic zone, the optoelectronic induction device that is installed in the character wheel both sides can produce the digital signal power supply subelement identification of 40 groups of different codings and read, the displayed value of gauging table can be position encoded differentiation the by detection printing opacity hole slot, thereby it is accurate to reach electronical reading.
Shown in Fig. 1 character wheel stretch-out view, the corresponding digit order number district 5 ' of the corresponding digit order number district 4 ' of the outer ring arc printing opacity hole slot 4 of both sides and inner ring circular arc printing opacity hole slot 5 adds for the corresponding position that clearly shows circular arc printing opacity hole slot, does not have on the character wheel of reality.Outer ring arc printing opacity hole slot 4 and inner ring circular arc printing opacity hole slot 5 respectively corresponding seven pairs of optoelectronic induction devices, the induction code signal that character wheel rotates all photoelectric sensor spares changes in 40 groups of sections below: 0.00-0.25,0.25-0.50,0.50-0.75,0.75-1.00,1.00-1.25,1.25-1.50,1.50-1.75,1.75-2.00,2.00-2.25,2.25-2.50,2.50-2.75,2.75-3.00,3.00-3.25,3.25-3.50,3.50-3.75,3.75-4.00,4.00-4.25,4.25-4.50,4.50-4.75,4.75-5.00,5.00-5.25,5.25-5.50,5.50-5.75,5.75-6.00,6.00-6.25,6.25-6.50,6.50-6.75,6.75-7.00,7.00-7.25,7.25-7.50,7.50-7.75,7.75-8.00,8.00-8.25,8.25-8.50,8.50-8.75,8.75-9.00,9.00-9.25,9.25-9.50,9.50-9.75,9.75-0.00.
Induced signal is a digital signal, forms seven codings, and coding is corresponding one by one with the numeral on the character wheel, and this digitally encoded signal can be directly inputted to integrated electronic modules, the reliable recognition reading.
Claims (6)
1, a kind of counter character wheel that is used for photoelectricity identification, comprise wheel rim (3), wheel body (2), wheel hub (1), be distributed with 0～90 numeral using for artificial reading on the annular circumferential face of wheel rim successively, it is characterized in that: it is to be respectively equipped with circular arc printing opacity hole slot on two different circumference of the center of circle, radius that described wheel body (2) is gone up with the wheel hub axle center, symmetry has five circular arc printing opacity hole slots (5) that symmetry on two the circular arc printing opacity hole slots (4), another circumference of equal length has equal length on one of them circumference, and the semidiameter of two circumference is greater than the groove width of printing opacity hole slot.
2, counter character wheel according to claim 1, it is characterized in that: the symmetrical circumference that has two circular arc printing opacity hole slots (4) of equal length is the outer ring on the described wheel body, the circumference that another symmetry has five circular arc printing opacity hole slots (5) of equal length is an inner ring, and the outer ring radius is greater than the inner ring radius.
3, counter character wheel according to claim 1, it is characterized in that: the symmetrical circumference that has 2 circular arc printing opacity hole slots (4) of equal length is an inner ring on the described wheel body, the circumference that another symmetry has 5 circular arc printing opacity hole slots (5) of equal length is the outer ring, and the outer ring radius is greater than the inner ring radius.
4, according to claim 2 or 3 described counter character wheels, it is characterized in that: the described central angle that is provided with each circular arc printing opacity hole slot (4) on two circular arc printing opacity hole slot circumference is 54 °, and the spacing central angle of two circular arc printing opacity hole slots is 126 °; The described central angle that is provided with each circular arc printing opacity hole slot (5) on 5 circular arc printing opacity hole slot circumference is 36 °, and the spacing central angle of two adjacent circular arc printing opacity hole slots is 36 °.
5, counter character wheel according to claim 4 is characterized in that: respectively corresponding 9～0 digit order numbers of described 2 circular arc printing opacity hole slots (4) and 4～5 digit order numbers; Respectively corresponding 1.5～2.5,3.5～4.5,5.5～6.5,7.5～8.5,9.5～0.5 digit order numbers of described 5 circular arc printing opacity hole slots (5).
6, counter character wheel according to claim 1 is characterized in that: uniform 20 carry driven tooth (6) on the annular circumferential face of described wheel rim one side, establish two carry driving tooths on the annular circumferential face of wheel rim opposite side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200497387U CN201233612Y (en) | 2008-06-19 | 2008-06-19 | Character wheel of counter for photoelectric recognition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200497387U CN201233612Y (en) | 2008-06-19 | 2008-06-19 | Character wheel of counter for photoelectric recognition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201233612Y true CN201233612Y (en) | 2009-05-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200497387U Expired - Fee Related CN201233612Y (en) | 2008-06-19 | 2008-06-19 | Character wheel of counter for photoelectric recognition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201233612Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196510A (en) * | 2013-04-12 | 2013-07-10 | 南通航海仪表有限公司 | Counter and character wheel identification principle thereof |
-
2008
- 2008-06-19 CN CNU2008200497387U patent/CN201233612Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196510A (en) * | 2013-04-12 | 2013-07-10 | 南通航海仪表有限公司 | Counter and character wheel identification principle thereof |
| CN103196510B (en) * | 2013-04-12 | 2015-04-08 | 南通航海仪表有限公司 | Counter and character wheel identification principle thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090506 Termination date: 20100619 |