CN104501895B - Optical fiber direct-reading gauge head - Google Patents
Optical fiber direct-reading gauge head Download PDFInfo
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- CN104501895B CN104501895B CN201410665232.9A CN201410665232A CN104501895B CN 104501895 B CN104501895 B CN 104501895B CN 201410665232 A CN201410665232 A CN 201410665232A CN 104501895 B CN104501895 B CN 104501895B
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Abstract
The invention discloses a kind of optical fiber direct-reading gauge head, including housing and the pcb board being separately mounted in housing, print wheel component and ladder enter wheel assembly, the both sides that each character wheel of print wheel component is corresponded on pcb board are respectively equipped with structure of fiber_optic, structure of fiber_optic sealing is inserted into housing, the junction of pcb board and structure of fiber_optic is provided with the photo-electroluminescence pipe and photoelectric receiving tube of interlaced arrangement along character wheel direction of rotation, quantity launching fiber corresponding with photo-electroluminescence pipe and photoelectric receiving tube and reception optical fiber respectively are provided with structure of fiber_optic, launching fiber and reception optical fiber upper end correspond to respectively to be connected with photo-electroluminescence pipe and photoelectric receiving tube, launching fiber and reception optical fiber lower end are respectively facing character wheel, the launching fiber of character wheel both sides and reception optical fiber lower end, which correspond, to cooperate.The structure of fiber_optic being hermetically connected with the shell by being added on pcb board, and photoelectric tube and optical fiber are set in structure of fiber_optic, improve the sensitivity of water meter and the accuracy of reading.Suitable for water meter.
Description
Technical field
The present invention relates to water meter, more particularly to a kind of optical fiber direct-reading gauge head.
Background technology
In daily life, water meter is seen everywhere, and has become an important component of people's life.Traditional machine
Tool formula water meter is gradually substituted by photoelectric water meter, and the meter outfit of photoelectric water meter generally comprises housing 1 and installed respectively
Pcb board 2, print wheel component 3 and ladder in housing 1 enter wheel assembly 4, correspond to each character wheel 3a's of print wheel component 3 on pcb board 2
Both sides are respectively equipped with the infraluminescence pipe and infrared receiving tube of mutual cooperation.During its work, infrared light that infraluminescence pipe is sent
The infrared receiving tube that the notch that electric signal is perforated through on character wheel 3a is engaged receives, meanwhile, the infrared receiving tube believes this
Breath is transferred to controller, and information decoding is just generated reading by controller by certain algorithm.
The meter outfit of photoelectric water meter of this structure is in design, to avoid water and pcb board 2, infraluminescence pipe and infrared
Reception pipe is contacted, and one piece has been added in housing by completely isolated saturating of pcb board 2, infraluminescence pipe and infrared receiving tube and water
Bright cloche.So, this photoelectric water meter is caused problems with to be present in actual use：
1st, because the infrared electro signal that infraluminescence pipe is sent need to first penetrate layer of transparent cloche, then character wheel 3a is penetrated
On notch (i.e. WATER AS FLOW MEDIUM), finally also to penetrate layer of transparent cloche could be received by infrared receiving tube, so in water
During the use of table, it is necessary to remain the high grade of transparency of transparent glass cover.But water meter is in use for some time, transparent glass
The surface that glass cover contacts with running water is easily created one layer of scale, and the scale can have a strong impact on the normal of infrared electro signal
Transmission, so as to cause water meter can not normal work., typically can be in print wheel component 3 to avoid transparent glass cover surface from forming scale
Print wheel shaft on the position of corresponding housing 1 add sealing ring, make the space sealing between housing 1 and transparent glass cover, and in shell
Distilled water is irrigated between body 1 and transparent glass cover, so, because the distilled water and the running water in pipeline are completely isolated, and is steamed
Distilled water will not produce scale, so solving the problems, such as that transparent glass cover surface easily forms scale well.But what is added is close
Seal can increase the rotational resistance of the print wheel shaft of print wheel component 3, so as to reduce the sensitive of the print wheel shaft of print wheel component 3 rotation
Degree, and then also reduce the sensitivity of water meter；
2nd, because the infraluminescence pipe and infrared receiving tube of character wheel 3a both sides are isolated by transparent glass cover, so character wheel 3a two
Spacing between the infraluminescence pipe and infrared receiving tube of side is larger, so, when the bubble in WATER AS FLOW MEDIUM is more, infrared hair
The infrared electro signal that light pipe is sent just is difficult to be received by infrared receiving tube, so as to have impact on the reading of water meter.
The content of the invention
The invention aims to overcome the shortcomings of above-mentioned background technology, there is provided a kind of sensitive and accuracy of reading is reliable
Optical fiber direct-reading gauge head.
In order to realize the above object a kind of optical fiber direct-reading gauge head provided by the invention, including housing and install respectively
Pcb board, print wheel component and ladder in the housing enter wheel assembly, and each word of the print wheel component is corresponded on the pcb board
The both sides of wheel are respectively equipped with structure of fiber_optic, and the structure of fiber_optic sealing is inserted into the housing, the pcb board and the optical fiber
Direction of rotation of the junction of support along the character wheel is provided with the photo-electroluminescence pipe and photoelectric receiving tube of interlaced arrangement, the optical fiber
Quantity launching fiber corresponding with the photo-electroluminescence pipe and photoelectric receiving tube and reception optical fiber respectively, the hair are provided with support
The upper end for penetrating optical fiber and reception optical fiber corresponds to connected with the photo-electroluminescence pipe and photoelectric receiving tube respectively, the launching fiber with
The lower end of reception optical fiber is respectively facing the character wheel, and a pair of the lower end 1 of the launching fiber of the character wheel both sides and reception optical fiber
It should cooperate.The structure of fiber_optic being hermetically connected with the shell by using being added in pcb board lower surface, and set in structure of fiber_optic
The technical scheme of photoelectric tube and optical fiber is put, realizes the completely isolated of pcb board, infraluminescence pipe and infrared receiving tube and water, from
Without assembling transparent glass cover, the programmable very little of spacing between so adjacent two character wheels 3a, so as to considerably reduce
The distance that photosignal transmits in WATER AS FLOW MEDIUM, and then interference of the bubble to photosignal transmission in WATER AS FLOW MEDIUM is reduced, improve
The accuracy and reliability of meter sense；Meanwhile without on the print wheel shaft of print wheel component the position of corresponding housing add
Sealing ring, so as to reduce the resistance of the print wheel shaft of print wheel component rotation, and then the sensitivity of gauge outfit is improved, it is simple in construction tight
Gather and cost is low.
In such scheme, the lower end of the launching fiber and reception optical fiber is respectively equipped with the bending knot for stretching to the character wheel
Structure.The warp architecture of the character wheel is stretched to by being added respectively in the lower end of launching fiber and reception optical fiber, so, can be further
Ground reduces the distance that photosignal transmits in WATER AS FLOW MEDIUM, and photosignal is passed so as to further reduce bubble in WATER AS FLOW MEDIUM
The interference passed, it further increasing the accuracy and reliability of meter sense.
In such scheme, the crooked radian of the warp architecture is 60~120 °.
In such scheme, the structure of fiber_optic is assembled by two pieces of unilateral structure of fiber_optic.By the way that structure of fiber_optic is set
Split-type structural is counted into, so, is easy to the installation of photo-electroluminescence pipe, photoelectric receiving tube, launching fiber and reception optical fiber.
In such scheme, the structure of fiber_optic top surface, which is respectively equipped with, accommodates the photo-electroluminescence pipe and photoelectric receiving tube
Photoelectric tube accommodating chamber, the structure of fiber_optic middle and lower part are respectively equipped with the fiber containment chamber connected with the photoelectric tube accommodating chamber, institute
Fiber containment chamber is stated to be used to accommodate the launching fiber and reception optical fiber, the photoelectric tube accommodating chamber and the fiber containment chamber
Vertical section part is respectively positioned on described two pieces unilateral structure of fiber_optic assembly faces.So it is more beneficial for photo-electroluminescence pipe, opto-electronic receiver
The installation of pipe, launching fiber and reception optical fiber.
In such scheme, the structure of two pieces of unilateral structure of fiber_optic is identical, can so reduce structure of fiber_optic
Production technology, is easy to batch production and cost is low.
In such scheme, it is tightly connected between two pieces of unilateral structure of fiber_optic by bonding way.Certainly, can also adopt
With other sealed connection modes.
In such scheme, spaced apart photo-electroluminescence pipe or light are provided only with the outermost structure of fiber_optic
Electric reception pipe, so, the production cost of every piece of gauge outfit can be reduced, avoid the waste of resource.
In such scheme, the photo-electroluminescence pipe and photoelectric receiving tube that each corresponding group of character wheel cooperates.
In such scheme, the junction of a structure of fiber_optic and the pcb board is provided with 10 photoelectric tube accommodating chambers,
10 are provided with the structure of fiber_optic and corresponds to the fiber containment chamber connected with 10 photoelectric tube accommodating chambers respectively, described in 10
The top of fiber containment chamber is arranged side by side, and the lower end of 10 fiber containment chambers coincides with a bit two-by-two.
The present invention is compared with the prior art, and fully shows that it is advantageous in that：
1st, the structure of fiber_optic being hermetically connected with the shell by using being added in pcb board lower surface, and set in structure of fiber_optic
The technical scheme of photoelectric tube and optical fiber is put, realizes the completely isolated of pcb board, infraluminescence pipe and infrared receiving tube and water, from
Without assembling transparent glass cover, the programmable very little of spacing between so adjacent two character wheels 3a, so as to considerably reduce
The distance that photosignal transmits in WATER AS FLOW MEDIUM, and then interference of the bubble to photosignal transmission in WATER AS FLOW MEDIUM is reduced, improve
The accuracy and reliability of meter sense；Meanwhile without on the print wheel shaft of print wheel component the position of corresponding housing add
Sealing ring, so as to reduce the resistance of the print wheel shaft of print wheel component rotation, and then the sensitivity of gauge outfit is improved, it is simple in construction tight
Gather and cost is low；
2nd, the warp architecture of the character wheel is stretched to by being added respectively in the lower end of launching fiber and reception optical fiber, so,
The distance that photosignal transmits in WATER AS FLOW MEDIUM can further be reduced, so as to further reduce in WATER AS FLOW MEDIUM bubble to light
The interference of electric signal transmission, it further increasing the accuracy and reliability of meter sense；
3rd, by the way that structure of fiber_optic is designed into split-type structural, and the assembled face of two pieces of unilateral structure of fiber_optic is designed
In the position of the photoelectric tube accommodating chamber and the vertical section part of the fiber containment chamber, so, it is easy to photo-electroluminescence pipe, photoelectricity
The installation of reception pipe, launching fiber and reception optical fiber；
4th, it is just the same by the way that the structure of two pieces of unilateral structure of fiber_optic is designed to, it can so reduce structure of fiber_optic
Production technology, is easy to batch production and cost is low；
5th, spaced apart photo-electroluminescence pipe or photoelectric receiving tube are provided only with the outermost structure of fiber_optic, this
Sample, the production cost of every piece of gauge outfit can be reduced, avoid the waste of resource.
6th, 5 groups of optical fiber readings can be used, optical fiber is in one line along character wheel side, and space structure is compact, does not change original
Reading plot structure, do not change original program coding and reading mode yet, can as existing water meter core component replacement produce
Product, it is economical and practical.
The present invention has accuracy of reading, more stable reliable, compact-sized and low cost and other advantages.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the cross-sectional view of the line A-A along Fig. 1；
Fig. 3 is the structural representation of structure of fiber_optic；
Fig. 4 is the side structure schematic view of single unilateral structure of fiber_optic in Fig. 3；
Fig. 5 is Fig. 3 overlooking the structure diagram；
Fig. 6 is that Fig. 5 removes the structural representation after a unilateral structure of fiber_optic.
In figure：Housing 1, pcb board 2, print wheel component 3, character wheel 3a, ladder enter wheel assembly 4, structure of fiber_optic 5, unilateral structure of fiber_optic
5a, photo-electroluminescence pipe 6, photoelectric receiving tube 7, launching fiber 8, reception optical fiber 9, warp architecture 10, photoelectric tube accommodating chamber 11, optical fiber
Accommodating chamber 12, counter wheel 13.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention is described in further detail, but the embodiment should not be construed as pair
The limitation of the present invention.
The present embodiment provides a kind of optical fiber direct-reading gauge head, including housing 1 and is separately mounted in the housing 1
Pcb board 2, print wheel component 3 and ladder enter wheel assembly 4, and each character wheel 3a of the print wheel component 3 both sides are corresponded on the pcb board 2
Structure of fiber_optic 5 is respectively equipped with, the adjacent two character wheel 3a shares a structure of fiber_optic 5, the sealing of structure of fiber_optic 5 inserting
In the housing 1, the direction of rotation of the junction of the pcb board 2 and the structure of fiber_optic 5 along the character wheel 3a is provided with staggeredly
The photo-electroluminescence pipe 6 and photoelectric receiving tube 7 of arrangement, be provided with the structure of fiber_optic 5 quantity respectively with the photo-electroluminescence pipe 6 and
The upper end of launching fiber 8 corresponding to photoelectric receiving tube 7 and reception optical fiber 9, the launching fiber 8 and reception optical fiber 9 corresponds to respectively
Connected with the photo-electroluminescence pipe 6 and photoelectric receiving tube 7, the lower end of the launching fiber 8 and reception optical fiber 9 is respectively facing described
Character wheel 3a, and the lower end of the launching fiber 8 of the character wheel 3a both sides and reception optical fiber 9 corresponds and cooperated.By using
The structure of fiber_optic 5 being tightly connected with housing 1 is added in the lower surface of pcb board 2, and photoelectric tube and optical fiber are set in structure of fiber_optic 5
Technical scheme, realize the completely isolated of pcb board 2, photo-electroluminescence pipe 6 and photoelectric receiving tube 7 and water, it is saturating without assembling
Bright cloche, the programmable very little of spacing between so adjacent two character wheels 3a, is being situated between so as to considerably reduce photosignal
The distance transmitted in matter water, and then interference of the bubble to photosignal transmission in WATER AS FLOW MEDIUM is reduced, improve meter sense
Accuracy and reliability；Meanwhile sealing ring is added without the position of the corresponding housing 1 on the print wheel shaft of print wheel component 3, so as to
The resistance of the print wheel shaft rotation of print wheel component 3 is reduced, and then improves the sensitivity of gauge outfit, simple and compact for structure and cost
It is low.
The lower end of above-mentioned launching fiber 8 and reception optical fiber 9 is respectively equipped with the warp architecture 10 for stretching to the character wheel 3a.Pass through
Add the warp architecture 10 for stretching to the character wheel 3a respectively in the lower end of launching fiber 8 and reception optical fiber 9, so, can be further
Ground reduces the distance that photosignal transmits in WATER AS FLOW MEDIUM, and photosignal is passed so as to further reduce bubble in WATER AS FLOW MEDIUM
The interference passed, it further increasing the accuracy and reliability of meter sense.The crooked radian of the warp architecture 10 is
90°。
Above-mentioned structure of fiber_optic 5 is assembled by two pieces of unilateral structure of fiber_optic 5a.It is split type by the way that structure of fiber_optic 5 is designed to
Structure, so, it is easy to the installation of photo-electroluminescence pipe 6, photoelectric receiving tube 7, launching fiber 8 and reception optical fiber 9.The structure of fiber_optic
5 top surfaces are respectively equipped with the photoelectric tube accommodating chamber 11 for accommodating the photo-electroluminescence pipe 6 and photoelectric receiving tube 7, in the structure of fiber_optic 5
Bottom is respectively equipped with the fiber containment chamber 12 connected with the photoelectric tube accommodating chamber 11, and the fiber containment chamber 12 is used to accommodate institute
State launching fiber 8 and reception optical fiber 9, the vertical section part of the photoelectric tube accommodating chamber 11 and the fiber containment chamber 12 is respectively positioned on
On two pieces of unilateral structure of fiber_optic 5a assembly faces.So it is more beneficial for photo-electroluminescence pipe 6, photoelectric receiving tube 7, launching fiber 8
With the installation of reception optical fiber 9.The structure of two pieces of unilateral structure of fiber_optic 5a is identical, can so reduce structure of fiber_optic 5
Production technology, is easy to batch production and cost is low.It is tightly connected between two pieces of unilateral structure of fiber_optic 5a by bonding way.
Certainly, other sealed connection modes can also be used.
To reduce the production cost of every piece of gauge outfit, the waste of resource is avoided, during actual production, can will be located at outermost institute
State the photo-electroluminescence pipe 6 or photoelectric receiving tube 7 of structure of fiber_optic 5 on installation interval arrangement.
It should be noted that in the present embodiment, as shown in Fig. 2 the print wheel shaft of above-mentioned print wheel component 3 is driven by counter wheel 13.
The photo-electroluminescence pipe 6 and photoelectric receiving tube 7 of above-mentioned each corresponding 5 groups of mutual cooperations of character wheel 3a.Described in one
The junction of structure of fiber_optic 5 and the pcb board 2 is provided with 10 photoelectric tube accommodating chambers 11, and 10 points are provided with the structure of fiber_optic 5
The top for 12, the 10 fiber containment chambers 12 of fiber containment chamber that Dui Ying do not connected with 10 photoelectric tube accommodating chambers 11 is simultaneously
Arrangement is put, and the lower end of 10 fiber containment chambers 12 coincides with a bit two-by-two.
The course of work of the present invention is as follows：
First, photo-electroluminescence pipe 6 sends photosignal；Then, the photosignal conducts via corresponding launching fiber 8,
And the reception optical fiber 9 that the notch being perforated through on character wheel 3a is engaged continues to conduct；Then, photoelectric receiving tube 7 just receives
The photosignal conducted from reception optical fiber 9, and the photosignal is transferred to controller；Finally, controller is just by certain
Algorithm by the photosignal decode generation reading.
The structure of fiber_optic 5 that the present invention is tightly connected by using being added in the lower surface of pcb board 2 with housing 1, and in optical fiber branch
The technical scheme of photoelectric tube and optical fiber is set in frame 5, realizes the complete of pcb board 2, photo-electroluminescence pipe 6 and photoelectric receiving tube 7 and water
Full isolation, without assembling transparent glass cover, the programmable very little of spacing between so adjacent two character wheels 3a, so as to significantly
Ground reduces the distance that photosignal transmits in WATER AS FLOW MEDIUM, and then reduces bubble in WATER AS FLOW MEDIUM and photosignal transmission is done
Disturb, improve the accuracy and reliability of meter sense；Meanwhile without the corresponding housing 1 on the print wheel shaft of print wheel component 3
Position adds sealing ring, so as to reduce the resistance of the print wheel shaft of print wheel component 3 rotation, and then improves the sensitivity of gauge outfit,
Simple and compact for structure and cost is low；Stretch to the character wheel 3a's by being added respectively in the lower end of launching fiber 8 and reception optical fiber 9
Warp architecture 10, so, it can further reduce the distance that photosignal transmits in WATER AS FLOW MEDIUM, so as to further reduce
Interference of the bubble to photosignal transmission in WATER AS FLOW MEDIUM, it further increasing the accuracy and reliability of meter sense；Pass through
Structure of fiber_optic 5 is designed to split-type structural, and described two pieces unilateral structure of fiber_optic 5a assembled face is designed in the photoelectricity
The position of the vertical section part of pipe accommodating chamber 11 and the fiber containment chamber 12, so, is easy to photo-electroluminescence pipe 6, opto-electronic receiver
The installation of pipe 7, launching fiber 8 and reception optical fiber 9；By the way that described two pieces unilateral structure of fiber_optic 5a structure is designed into complete one
Sample, the production technology of structure of fiber_optic 5 can be so reduced, be easy to batch production and cost is low；Positioned at the outermost optical fiber branch
Spaced apart photo-electroluminescence pipe 6 or photoelectric receiving tube 7 are provided only with frame 5, so, the production cost of every piece of gauge outfit can be reduced,
Avoid the waste of resource；5 groups of optical fiber readings can be used, optical fiber is in one line along character wheel 3a sides, and space structure is compact, does not change
Become original reading plot structure, also do not change original program coding and reading mode, can be as existing water meter core component
Replacement products, it is economical and practical.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (6)
1. a kind of optical fiber direct-reading gauge head, including housing (1) and the pcb board (2), the word that are separately mounted in the housing (1)
Wheel assembly (3) and ladder enter wheel assembly (4), it is characterised in that each word of the print wheel component (3) is corresponded on the pcb board (2)
The both sides of wheel (3a) are respectively equipped with structure of fiber_optic (5), and structure of fiber_optic (5) sealing is inserted into the housing (1), described
The photoelectricity that direction of rotation of the junction of pcb board (2) and the structure of fiber_optic (5) along the character wheel (3a) is provided with interlaced arrangement is sent out
Light pipe (6) and photoelectric receiving tube (7), be provided with the structure of fiber_optic (5) quantity respectively with the photo-electroluminescence pipe (6) and photoelectricity
The upper end of launching fiber (8) corresponding to reception pipe (7) and reception optical fiber (9), the launching fiber (8) and reception optical fiber (9) point
It Dui Ying not connected with the photo-electroluminescence pipe (6) and photoelectric receiving tube (7), under the launching fiber (8) and reception optical fiber (9)
End is respectively facing the character wheel (3a), and the lower end of the launching fiber (8) of the character wheel (3a) both sides and reception optical fiber (9) is one by one
It is corresponding to cooperate；The lower end of the launching fiber (8) and reception optical fiber (9) is respectively equipped with the bending for stretching to the character wheel (3a)
Structure (10)；The crooked radian of the warp architecture (10) is 60~120 °；The structure of fiber_optic (5) is by two pieces of unilateral optical fiber branch
Frame (5a) is assembled；Structure of fiber_optic (5) top surface, which is respectively equipped with, accommodates the photo-electroluminescence pipe (6) and photoelectric receiving tube
(7) photoelectric tube accommodating chamber (11), structure of fiber_optic (5) middle and lower part is respectively equipped with to be connected with the photoelectric tube accommodating chamber (11)
Fiber containment chamber (12), the fiber containment chamber (12) be used for accommodate the launching fiber (8) and reception optical fiber (9), it is described
The vertical section part of photoelectric tube accommodating chamber (11) and the fiber containment chamber (12) is respectively positioned on two pieces of unilateral structure of fiber_optic
On (5a) assembled face.
2. optical fiber direct-reading gauge head as claimed in claim 1, it is characterised in that：The knot of two pieces of unilateral structure of fiber_optic (5a)
Structure is identical.
3. optical fiber direct-reading gauge head as claimed in claim 1, it is characterised in that：Between two pieces of unilateral structure of fiber_optic (5a)
It is tightly connected by bonding way.
4. optical fiber direct-reading gauge head as claimed in claim 1, it is characterised in that：Positioned at the outermost structure of fiber_optic (5)
On be provided only with spaced apart photo-electroluminescence pipe (6) or photoelectric receiving tube (7).
5. optical fiber direct-reading gauge head as claimed in claim 1, it is characterised in that：Corresponding 5 groups of each character wheel (3a) is mutual
The photo-electroluminescence pipe (6) coordinated and photoelectric receiving tube (7).
6. optical fiber direct-reading gauge head as claimed in claim 5, it is characterised in that：One structure of fiber_optic (5) and the PCB
The junction of plate (2) is provided with 10 photoelectric tube accommodating chambers (11), be provided with the structure of fiber_optic (5) 10 correspond to respectively with it is described
The fiber containment chamber (12) of 10 photoelectric tube accommodating chamber (11) connections, the top of 10 fiber containment chambers (12) and arrangement
Put, the lower end of 10 fiber containment chambers (12) coincides with a bit two-by-two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410665232.9A CN104501895B (en) | 2014-11-19 | 2014-11-19 | Optical fiber direct-reading gauge head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410665232.9A CN104501895B (en) | 2014-11-19 | 2014-11-19 | Optical fiber direct-reading gauge head |
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| Publication Number | Publication Date |
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| CN104501895A CN104501895A (en) | 2015-04-08 |
| CN104501895B true CN104501895B (en) | 2017-11-28 |
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|---|---|---|---|---|
| CN1127351A (en) * | 1993-12-23 | 1996-07-24 | Gwf水气测量仪器股份公司 | Multigit counting wheel mechanism for a volume-measuring instrument |
| CN2689176Y (en) * | 2004-03-26 | 2005-03-30 | 成都金地光电科技有限公司 | Controller of straight-reading digital count meter |
| CN2788140Y (en) * | 2005-04-18 | 2006-06-14 | 张厚珕 | Photoelectrical reading decimalized mechanical counter |
| JP4624720B2 (en) * | 2004-05-18 | 2011-02-02 | 元 小野田 | counter |
| CN102147279A (en) * | 2011-01-13 | 2011-08-10 | 南京邦耀科技发展有限公司 | Character-wheel-type meter reading method and character-wheel-type direct-reading meter |
| CN204269177U (en) * | 2014-11-19 | 2015-04-15 | 湖北泽捷电子科技有限公司 | Optical fiber direct-reading gauge head |
-
2014
- 2014-11-19 CN CN201410665232.9A patent/CN104501895B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1127351A (en) * | 1993-12-23 | 1996-07-24 | Gwf水气测量仪器股份公司 | Multigit counting wheel mechanism for a volume-measuring instrument |
| CN2689176Y (en) * | 2004-03-26 | 2005-03-30 | 成都金地光电科技有限公司 | Controller of straight-reading digital count meter |
| JP4624720B2 (en) * | 2004-05-18 | 2011-02-02 | 元 小野田 | counter |
| CN2788140Y (en) * | 2005-04-18 | 2006-06-14 | 张厚珕 | Photoelectrical reading decimalized mechanical counter |
| CN102147279A (en) * | 2011-01-13 | 2011-08-10 | 南京邦耀科技发展有限公司 | Character-wheel-type meter reading method and character-wheel-type direct-reading meter |
| CN204269177U (en) * | 2014-11-19 | 2015-04-15 | 湖北泽捷电子科技有限公司 | Optical fiber direct-reading gauge head |
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| Publication number | Publication date |
|---|---|
| CN104501895A (en) | 2015-04-08 |
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