CN205426267U - Measurement meter reading structure and reading device based on inductance - Google Patents
Measurement meter reading structure and reading device based on inductance Download PDFInfo
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- CN205426267U CN205426267U CN201620223518.6U CN201620223518U CN205426267U CN 205426267 U CN205426267 U CN 205426267U CN 201620223518 U CN201620223518 U CN 201620223518U CN 205426267 U CN205426267 U CN 205426267U
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Abstract
The utility model relates to a measurement apparatus count field, especially a measurement meter reading structure and reading device based on inductance. Include that make the wheel shaped runner of tooth by insulating material, the runner contains the teeth of a cogwheel that at least one surface was equipped with the metal sheet metal component, inductance coils, inductance coils with runner side parallel arrangement or, set up and be in the outside of runner periphery, and inductance to the digital converter who is connected with inductance coils. The utility model discloses let the teeth of a cogwheel and inductance coils constitute non -contact inductive transducer, be close to when the teeth of a cogwheel inductance coils, the inductance changes among the inductance coils, and then inductance to digital converter sensing arrives the inductance changes back generate current pulse to realizing the count, not relating to any magnet among the whole metering device, simultaneously, runner and atress module itself need not supplied power, in energy -conservation very big improvement the interference killing feature of device.
Description
Technical field
This utility model relates to metering device counted fields, a kind of gauge table reading structure based on inductance and reading plotter.
Background technology
Traditional fluid metering instrument (water meter, gas meter etc.) uses fluid driven runner (being referred to as character wheel after arranging 0-9 ten digits on described runner periphery) to rotate more; magnet steel is set on runner periphery simultaneously; and then by Hall element or tongue tube element senses magnet steel position; thus realize the reading to runner; but in actual applications, use the above-mentioned mode to runner reading often to cause error in reading due to problems such as mechanical vibration, electromagnetic interference, magnet steel demagnetizations.
Utility model content
Goal of the invention of the present utility model is, what the mode of the magnet steel position being positioned on runner for existing employing Hall element or tongue tube element senses carried out that the reading mode of runner reading exists easy being disturbed by problems such as mechanical vibration, electromagnetic interference, magnet steel demagnetizations, thus the problem causing error in reading, it is provided that a kind of gauge table reading structure based on inductance without magnetic.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of gauge table reading structure based on inductance, including,
Runner, described runner is made gear-like by insulant, and described runner comprises at least one gear teeth, and described tooth surface is provided with sheet metal part；
Inductance coil, described inductance coil be arranged in parallel with described runner side and corresponding with the described gear teeth, or, described inductance coil is arranged on the outside of described runner periphery；
Inductance, to digital converter, is connected with described inductance coil.
I.e., the most described sheet metal part and inductance coil constitute a non-contacting inductive sensor, when surface configuration has the gear teeth of sheet metal part to forward near described inductance coil, described inductance coil inductance changes, now, inductance to digital converter can detect the change of inductance and produce current impulse, and after the gear teeth are away from described inductance coil, in described inductance coil, inductance stabilization is not changed in, and the most described inductance to digital converter also will not produce current impulse.
Preferably, described inductance to digital converter is LDC1000.
In some embodiments, the gear teeth on described runner circumference are one, it is 10 degree of-270 degree that the described gear teeth account for the radian of runner circumference, now, when the gear teeth of runner circumference are near described inductance coil, inductance to digital converter senses the lasting change of inductance and persistently produces current impulse, but owing to the gear teeth are only one, therefore runner often rotates a circle, and described inductance to digital converter only produces primary current pulse.
Preferably, the described gear teeth account for the radian of runner circumference is 180 degree.
In some embodiments, described inductance coil is two, and two inductance coils are symmetrically or non-symmetrically arranged relative to the rotating shaft of runner, now, runner often rotates a circle, described inductance to digital converter can produce twice current impulse, meanwhile, can judge the direction of rotation of described runner according to the sequencing judging two inductance coil inductance changes.
In other embodiment, the gear teeth on described runner circumference are ten, described ten gear teeth are for being uniformly distributed, and it is more than 0 degree that each described gear teeth account for the radian of runner circumference, less than or equal to 15 degree, now, whenever there being the gear teeth to produce primary current pulse near described inductance coil, the most described inductance to digital converter, therefore runner often rotates a circle, described inductance to digital converter can produce 10 subpulses, the most corresponding 10 place readings.
Described sheet metal part is that aluminum is made or rustless steel is made or makes by smearing electrically conductive ink.
This utility model provides a kind of gauge table reading plotter based on piezoelectricity simultaneously, comprises processing module and reading structure as above,
Described processing module is connected to digital converter with described inductance, is used for receiving described current impulse, and counts according to the quantity of described current impulse.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
This utility model is by arranging inductance coil and inductance to digital converter, there are the gear teeth of sheet metal part on runner surface provided circumferentially about simultaneously, the gear teeth are allowed to form contactless inductance sensor with inductance coil, when the gear teeth are near described inductance coil, in described inductance coil, inductance changes, and then described inductance to digital converter sense the change of described inductance after produce current impulse, thus realize counting, whole metering device is not related to any magnet, simultaneously, runner and stress module itself are not required to power supply, the capacity of resisting disturbance of device is greatly improved while energy-conservation.
Accompanying drawing explanation
Fig. 1 is a specific embodiment of the reading structure that this utility model provides.
Fig. 2 is another specific embodiment of the reading structure that this utility model provides.
Fig. 3 is another specific embodiment of the reading structure that this utility model provides.
Fig. 4 is another specific embodiment of the reading structure that this utility model provides.
Fig. 5 is another specific embodiment of the reading structure that this utility model provides.
Fig. 6 is another specific embodiment of the reading structure that this utility model provides.
The structured flowchart of the reading plotter that Fig. 7 provides for this utility model.
Reference: 1-reading structure；11-runner, the 111-gear teeth, 12-inductance coil, 13-inductance to digital converter, 2-processing module.
Detailed description of the invention
Below in conjunction with the accompanying drawings, this utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
Embodiment 1:As shown in Figure 1 and Figure 2, the present embodiment provides a kind of gauge table reading structure 1 based on inductance, including,
Runner 11, described runner 11 is made gear-like by insulant, and described runner 11 comprises at least one gear teeth 111, and the described gear teeth 111 surface configuration has sheet metal part；
Inductance coil 12, described inductance coil 12 be arranged in parallel with described runner 11 side and corresponding with the described gear teeth 111, or, described inductance coil 12 is arranged on the outside of described runner 11 periphery；
Inductance, to digital converter 13, is connected with described inductance coil 12.
I.e., the actually sheet metal part of tooth surface and inductance coil 12 constitutes a non-contacting inductive sensor, when surface configuration has the gear teeth 111 of sheet metal part to forward near described inductance coil 12, described inductance coil 12 inductance changes, now, inductance can detect the change of inductance to digital converter 13 and produce current impulse, and after the gear teeth 111 are away from described inductance coil 12, in described inductance coil 12, inductance stabilization is not changed in, and the most described inductance to digital converter 13 also will not produce current impulse.
Preferably, described inductance is LDC1000 to digital converter 13.
In some embodiments, the gear teeth 111 on described runner 11 circumference are one, it is 10 degree of-270 degree that the described gear teeth 111 account for the radian of runner 11 circumference, now, when the gear teeth 111 on runner 11 circumference are near described inductance coil, inductance to digital converter 13 senses the lasting change of inductance and persistently produces current impulse, but owing to the gear teeth 111 are only one, therefore runner 11 often rotates a circle, and described inductance to digital converter 13 only produces primary current pulse.
In the present embodiment, it is 20 degree that the gear teeth 111 described in Fig. 1, Fig. 4 account for the radian of runner 11 circumference；It is 180 degree that gear 111 described in Fig. 2, Fig. 5 accounts for the radian of runner 11 circumference, and wherein, Fig. 1, Fig. 2 are the situation that inductance coil 12 is positioned at outside runner 11 periphery, and Fig. 4, Fig. 5 are that described inductance coil 12 is positioned at runner 11 side and situation during gear teeth correspondence position.
Embodiment 2:The present embodiment is with embodiment 1 difference, described inductance coil has two, two inductance coils 12 are relative to the asymmetrical setting of the rotating shaft of runner 11, and the present embodiment can be by judging that the sequencing of two inductance coil 12 inductance changes judges the choice direction of runner 11.
Embodiment 3:nullSuch as Fig. 3、Shown in Fig. 6，It is with embodiment 1 difference，In the present embodiment，The gear teeth 111 on described runner 11 circumference are ten，Described ten gear teeth 111 sizes are identical and for being evenly distributed on runner circumference，Each described gear teeth 111 account for the radian of runner 11 circumference for more than 0 degree，Less than or equal to 15 degree，Now，Whenever having the gear teeth 111 near described inductance coil 12，In described inductance coil 12, inductance changes，The most described inductance produces primary current pulse to digital converter 13，Therefore runner 11 often rotates a circle，Described inductance can produce 10 subpulses to digital converter 13，The most corresponding 10 place readings，Such as Fig. 3、In Fig. 6, each gear teeth 111 account for the radian of runner circumference is 10 degree，Fig. 3 is the situation that inductance coil 12 is positioned at outside runner 11 periphery，Fig. 6 is that described inductance coil 12 is positioned at runner 11 side and the situation during gear teeth 111 correspondence position.
Embodiment 4:As shown in Figure 7, the present embodiment provides a kind of gauge table reading plotter based on inductance, processing module 1 and the reading structure 1 provided such as embodiment 1 or 2 are provided, described processing module 1 is connected to digital converter 13 with described inductance, for receiving described current impulse, and count according to the quantity of described current impulse.It is well known that described inductance to the current impulse that digital converter 13 produces also needs to could to be processed after a series of process, module processes easily, and related content is known in the art general knowledge, is not repeated herein.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.
Claims (8)
1. a gauge table reading structure based on inductance, it is characterised in that include,
Runner, described runner is made gear-like by insulant, and described runner comprises at least one gear teeth, and described tooth surface is provided with sheet metal part；
Inductance coil, described inductance coil be arranged in parallel with described runner side and corresponding with the described gear teeth, or, described inductance coil is arranged on the outside of described runner periphery；
Inductance, to digital converter, is connected with described inductance coil.
Reading structure the most according to claim 1, it is characterised in that described inductance to digital converter is LDC1000.
Reading structure the most according to claim 1, it is characterised in that the gear teeth on described runner circumference are one, it is 10 degree of-270 degree that the described gear teeth account for the radian of runner circumference.
Reading structure the most according to claim 3, it is characterised in that it is 180 degree that the described gear teeth account for the radian of runner circumference.
Reading structure the most according to claim 1, it is characterised in that described inductance coil is two, and two inductance coils symmetrically or non-symmetrically arrange relative to the rotating shaft of runner.
Reading structure the most according to claim 1, it is characterised in that the gear teeth on described runner circumference are ten, described ten gear teeth are for being uniformly distributed, and each described gear teeth account for the radian of runner circumference for more than 0 degree, less than or equal to 15 degree.
Reading structure the most according to claim 1, it is characterised in that described sheet metal part is that aluminum is made or rustless steel is made or makes by smearing electrically conductive ink.
8. a gauge table reading plotter based on piezoelectricity, it is characterised in that comprise processing module and the reading structure as described in any one of claim 1 to 7,
Described processing module is connected to digital converter with described inductance, for receiving the current impulse that described inductance produces to digital converter, and counts according to the quantity of described current impulse.
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| CN201620223518.6U CN205426267U (en) | 2016-03-22 | 2016-03-22 | Measurement meter reading structure and reading device based on inductance |
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| CN201620223518.6U CN205426267U (en) | 2016-03-22 | 2016-03-22 | Measurement meter reading structure and reading device based on inductance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341737A (en) * | 2018-11-21 | 2019-02-15 | 金卡智能集团股份有限公司 | Intelligent metering instrument brush sample count structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341737A (en) * | 2018-11-21 | 2019-02-15 | 金卡智能集团股份有限公司 | Intelligent metering instrument brush sample count structure |
| CN109341737B (en) * | 2018-11-21 | 2024-04-12 | 金卡智能集团股份有限公司 | Brush sampling counting structure of intelligent metering instrument |
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Address after: No. 536, Section 1, Shuangliu Airport 1 road, Chengdu, Sichuan 610211 Patentee after: Chengdu Qianjia Technology Co.,Ltd. Address before: No. 536, Section 1, Shuangliu Airport 1 road, Chengdu, Sichuan 610211 Patentee before: Chengdu Qianjia Technology Co.,Ltd. |