CN212275957U - Optical fiber pulse acquisition device - Google Patents
Optical fiber pulse acquisition device Download PDFInfo
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- CN212275957U CN212275957U CN202020985356.6U CN202020985356U CN212275957U CN 212275957 U CN212275957 U CN 212275957U CN 202020985356 U CN202020985356 U CN 202020985356U CN 212275957 U CN212275957 U CN 212275957U
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Abstract
The utility model relates to an optical fiber pulse acquisition device. The device comprises: the optical fiber line is connected with a signal output port of the electric energy meter and is used for acquiring optical information of the electric energy meter; the optical signal amplifying circuit is connected with the optical fiber line and is used for amplifying the optical information collected by the optical fiber line; the photoelectric pulse collector is connected with the optical signal amplifying circuit, and the other end of the photoelectric pulse collector is connected with a sampling input port of the electric energy meter anti-interference checking device and used for converting the amplified optical information into an electric signal to be input into the sampling input port of the electric energy meter anti-interference checking device. Through this application optical fiber pulse collection system, can improve the accuracy of electric energy meter measuring result in the electromagnetic compatibility noise immunity test.
Description
Technical Field
The utility model relates to an experimental technical field of intelligence electric energy meter electromagnetic compatibility noise immunity especially relates to an optical pulse collection system.
Background
Intelligent electric energy meter type test standard GB-T17215.2112006 section 11 of Universal requirements, test and test conditions for alternating current measuring equipment: electromagnetic compatibility (EMC) experiments are mentioned in a measuring device and a type evaluation outline JJF 1245.1-2019 general requirements of a mounted electric energy meter type evaluation outline: testing the immunity of the radio frequency electromagnetic field; fast transient burst testing; conducting disturbance immunity test induced by the radio frequency field; and (5) carrying out a damped oscillation wave immunity test. The above tests all require that the state of the device under test should not be disturbed during the perturbation process and that the error should be within the limits specified by the corresponding standard. Therefore, when the electromagnetic compatibility immunity test of the intelligent electric energy meter is carried out, the self anti-interference capability of the error acquisition device is higher.
However, the existing error collection device is mainly divided into an electronic pulse collection device and a photoelectric pulse collection device, and such collection devices can be influenced by an electromagnetic field in an electromagnetic compatibility test of the intelligent electric energy meter, so that interference of an interfered intelligent electric energy watch band on the error collection device cannot be effectively isolated, and the accuracy of a measurement result in the electromagnetic compatibility immunity test is influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, it is necessary to provide an optical fiber pulse acquisition device, which is directed to the problem that the error acquisition device is susceptible to interference when acquiring optical information.
A fiber optic pulse harvesting device comprising:
the optical fiber line is connected with a signal output port of the electric energy meter and is used for acquiring optical information of the electric energy meter;
the optical signal amplifying circuit is connected with the optical fiber line and is used for amplifying the optical information collected by the optical fiber line;
the photoelectric pulse collector is connected with the optical signal amplifying circuit, and the other end of the photoelectric pulse collector is connected with a sampling input port of the electric energy meter anti-interference checking device and used for converting the amplified optical information into an electric signal to be input into the sampling input port of the electric energy meter anti-interference checking device.
In one embodiment, the fiber pulse collecting device further includes: and the optical fiber line is connected with the signal output port of the electric energy meter through the optical fiber line fixing clamp.
In one embodiment, the optical fiber line fixing clamp is a wood bracket or a plastic rubber sucker.
In one embodiment, the fiber pulse collecting device further includes: and the optical signal amplifying circuit and the photoelectric pulse collector are arranged in the metal shell.
In one embodiment, the metal shell is provided with a through hole, and after one end of the optical fiber line is connected with the optical signal amplification circuit, the other end of the optical fiber line extends out through the through hole to be connected with a signal output port of the electric energy meter.
Above-mentioned optical fiber pulse collection system gathers optical signal through the optic fibre line, input photoelectric pulse collector after rethread optical signal amplifier circuit enlargies the optical signal, the anti-interference verifying attachment of electric energy meter is inputed at last, can guarantee when carrying out optical signal collection, the optical signal is transmitted by optic fibre, do not receive electromagnetic interference, the influence of radio frequency interference and noise, the optical signal of having guaranteed input electric energy meter anti jamming unit is accurate, finally guarantee measuring result's accuracy.
Drawings
Fig. 1 is a schematic diagram of a circuit connection structure of an optical fiber pulse acquisition device.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" or "a plurality" means two or more unless specifically limited otherwise.
In one embodiment, as shown in fig. 1, a fiber pulse acquisition device is provided, comprising: the optical fiber line 101 is connected with a signal output port of the electric energy meter and is used for acquiring optical information of the electric energy meter; the optical signal amplifying circuit 102 is connected with the optical fiber line and is used for amplifying the optical information collected by the optical fiber line 101; and the other end of the photoelectric pulse collector 103 is connected with a sampling input port of the anti-interference testing device of the electric energy meter, and is used for converting the amplified optical information into an electric signal to be input into the sampling input port of the anti-interference testing device of the electric energy meter.
The optical fiber line 101 can be made of plastic optical fibers, the optical fibers are low in cost, soft and firm, and are completely free from the influence of electromagnetic interference, radio frequency interference and noise when optical signals are collected, radiation is not generated, and the electric energy meter anti-interference inspection device in an electromagnetic compatibility immunity test are not influenced.
The optical signal amplifying circuit 102 is an optical-electrical-optical signal amplifying and photoelectric conversion circuit composed of a photodiode, a triode, and a light emitting diode.
The photo-electric pulse collector may be an existing photo-electric pulse collector, and is provided with an interface connected with the optical signal amplification circuit 102.
Specifically, as shown in fig. 1, the optical fiber pulse collection device is used in cooperation with the anti-interference inspection device of the electric energy meter, the voltage source of the anti-interference inspection device of the electric energy meter, the current source is connected with the tested electric energy meter through the interference signal generator, the optical pulse generation position of the tested electric energy meter is provided with the optical fiber line and the optical fiber line fixing clamp, the optical fiber line is connected to the optical signal amplification circuit, the optical information sampled by the optical fiber line is amplified, and the processed optical signal is connected to the sampling input port of the anti-interference inspection device of the electric energy meter through the optical fiber line collection device.
Above-mentioned optical fiber pulse collection system gathers optical signal through the optic fibre line, input photoelectric pulse collector after rethread optical signal amplifier circuit enlargies the optical signal, the anti-interference verifying attachment of electric energy meter is inputed at last, can guarantee when carrying out optical signal collection, the optical signal is transmitted by optic fibre, do not receive electromagnetic interference, the influence of radio frequency interference and noise, the optical signal of having guaranteed input electric energy meter anti jamming unit is accurate, finally guarantee measuring result's accuracy.
In one embodiment, the fiber pulse collecting device further includes: and the optical fiber line 101 is connected with a signal output port of the electric energy meter through the optical fiber line fixing clamp.
In one embodiment, the optical fiber line fixing clamp is a wood bracket or a plastic rubber sucker.
In one embodiment, the fiber pulse collecting device further includes: the metal shell 104, the optical signal amplifying circuit 102 and the photoelectric pulse collector 103 are arranged in the metal shell 104.
In this embodiment, the optical signal amplifying circuit 102 and the photoelectric pulse collector 103 are fixed in the sealed metal casing 104, so that the influence of the change of the external light environment on the sampling of the photoelectric pulse collector 103 can be avoided, and the influence of the interference signal on the photoelectric pulse collector 103 in the space radiation mode in the electromagnetic compatibility immunity test can be avoided. This application optical pulse collection system, whole conductibility and the radiativity angle from the anti-interference source of following, abundant accomplish isolation and shielding to interference signal to guarantee reliability and the accuracy of measuring result in the compatible immunity of electric energy meter electromagnetism experiment.
In one embodiment, the metal casing 104 is provided with a through hole, and after one end of the optical fiber line 101 is connected with the optical signal amplifying circuit 102, the other end of the optical fiber line extends out through the through hole to be connected with a signal output port of the electric energy meter.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (5)
1. An optical fiber pulse harvesting device, comprising:
the optical fiber line is connected with a signal output port of the electric energy meter and is used for acquiring optical information of the electric energy meter;
the optical signal amplifying circuit is connected with the optical fiber line and is used for amplifying the optical information collected by the optical fiber line;
the photoelectric pulse collector is connected with the optical signal amplifying circuit, and the other end of the photoelectric pulse collector is connected with a sampling input port of the electric energy meter anti-interference checking device and used for converting the amplified optical information into an electric signal to be input into the sampling input port of the electric energy meter anti-interference checking device.
2. The fiber optic pulse harvesting device of claim 1, further comprising: and the optical fiber line is connected with the signal output port of the electric energy meter through the optical fiber line fixing clamp.
3. The fiber optic pulse acquisition device of claim 1 wherein the fiber optic line securing clip is a wood bracket or a plastic rubber suction cup.
4. The fiber optic pulse harvesting device of claim 1, further comprising: and the optical signal amplifying circuit and the photoelectric pulse collector are arranged in the metal shell.
5. The optical fiber pulse acquisition device according to claim 4, wherein the metal shell is provided with a through hole, and after one end of the optical fiber line is connected with the optical signal amplification circuit, the other end of the optical fiber line extends out of the through hole to be connected with a signal output port of the electric energy meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020985356.6U CN212275957U (en) | 2020-06-02 | 2020-06-02 | Optical fiber pulse acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020985356.6U CN212275957U (en) | 2020-06-02 | 2020-06-02 | Optical fiber pulse acquisition device |
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| Publication Number | Publication Date |
|---|---|
| CN212275957U true CN212275957U (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020985356.6U Active CN212275957U (en) | 2020-06-02 | 2020-06-02 | Optical fiber pulse acquisition device |
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| CN (1) | CN212275957U (en) |
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2020
- 2020-06-02 CN CN202020985356.6U patent/CN212275957U/en active Active
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