CN111811781A - Polarity test standard line and detection system of MPO connector - Google Patents
Polarity test standard line and detection system of MPO connector Download PDFInfo
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- CN111811781A CN111811781A CN202010656682.7A CN202010656682A CN111811781A CN 111811781 A CN111811781 A CN 111811781A CN 202010656682 A CN202010656682 A CN 202010656682A CN 111811781 A CN111811781 A CN 111811781A
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- mpo connector
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
Abstract
The invention discloses a polarity test standard line of an MPO connector and a detection system, and relates to the technical field of connectors. The polarity test standard line is aligned with the MPO connector to be tested and used for detecting the polarity of the MPO connector to be tested, wherein the polarity test standard line comprises a standard line body, a standard optical fiber ferrule and a standard optical fiber, the standard optical fiber ferrule extends inwards from a first end face of the standard line body, the standard optical fiber is arranged in the standard optical fiber ferrule, the height of a connecting end of the standard optical fiber extending out of the first end face is the standard optical fiber height H, the standard optical fiber height H is a negative value, and an avoiding space can be formed between the first end face and the MPO connector to be tested. The polarity test standard line of the MPO connector provided by the invention avoids the direct collision of the standard optical fiber and the optical fiber to be tested when the test standard line is aligned with the MPO connector to be tested during polarity detection, thereby avoiding the damage of the standard optical fiber and the optical fiber to be tested.
Description
Technical Field
The invention relates to the technical field of connectors, in particular to a polarity test standard line and a detection system of an MPO connector.
Background
The MPO connector is one of fiber connector types, and the MPO (multi Push on) is one of multi-fiber connector types. The 12-core optical fibers are generally arranged in a row, one or more rows of optical fibers can be supported in the same MPO connector, and the optical fibers are divided into one row (12 cores) and multiple rows (24 cores or more) according to the number of cores arranged in the connector.
The detection of the MPO connector comprises 3D detection, polarity detection, end face detection, insertion and return loss detection. In the polarity detection process of the MPO connector, the standard optical fiber and the optical fiber to be detected are ground into 1000-3500 nm protruding end faces, and the number of optical fiber cores is large, so that the standard optical fiber and the optical fiber to be detected are easily damaged by collision.
Disclosure of Invention
The invention aims to provide a polarity test standard line of an MPO connector, which is used for realizing that optical fibers are not in direct contact when the polarity test of the MPO connector is carried out, and avoiding the optical fibers from being damaged.
In order to achieve the purpose, the invention adopts the following technical scheme:
a polarity test standard line of an MPO connector is aligned with the MPO connector to be tested and used for detecting the polarity of the MPO connector to be tested, wherein the polarity test standard line comprises a standard line body, a standard optical fiber ferrule and a standard optical fiber, the standard optical fiber ferrule extends inwards from a first end face of the standard line body, the standard optical fiber is arranged in the standard optical fiber ferrule, the height of a connecting end of the standard optical fiber extending out of the first end face is a standard optical fiber height H, and the standard optical fiber height H is a negative value; the first end face is configured to form an avoiding space with the MPO connector to be tested.
Optionally, the standard fiber height H is between-500 nm and-3000 nm.
Optionally, the first end face is a beveled end face having a first angle α relative to a first reference plane, the first reference plane being perpendicular to the axis of the polarity test standard line.
Optionally, the first angle α is 3 ° to 7 °.
Another object of the present invention is to provide a detecting system for an MPO connector, which can simultaneously realize the end face detection and the polarity detection of the MPO connector, and can realize the free contamination detection of the end face of the fiber stub.
In order to achieve the purpose, the invention adopts the following technical scheme:
the MPO connector detection system comprises a scanner, a single chip microcomputer, a light source, a microscope and a display screen, wherein the scanner is connected with the single chip microcomputer, the light source is connected into the polarity test standard line of the MPO connector, the polarity test standard line of the MPO connector is aligned with the MPO connector to be detected, and the microscope is electrically connected with the display screen.
Optionally, the microscope is a multi-magnification microscope.
Optionally, the multi-magnification microscope comprises a first magnification and a second magnification, the first magnification being less than the second magnification; when the multi-magnification microscope is adjusted to the first magnification, the free smudging detection and the polarity detection are used for the end face of the optical fiber ferrule of the MPO connector to be detected; and when the multi-magnification microscope is adjusted to the second magnification, the multi-magnification microscope is used for detecting the end face of the MPO connector to be detected.
Optionally, the first magnification is 40 times, the display area is a rectangular area of 4mm × 2.4mm, and the resolution is 1000nm to 1500 nm; the second multiplying power is 400 times, the display area is a circular area with phi 250um to phi 300um, and the resolution is 500nm to 600 nm.
Optionally, the light source is an LED array, and the power of the LED array is 0.2 to 0.5 mw.
Optionally, the scanner has multiple scanning modes for scanning multiple specifications of the MPO connector under test.
The invention has the beneficial effects that:
according to the polarity test standard line of the MPO connector, the height of the standard optical fiber of which the connecting end extends out of the first end face of the standard line body is set to be a negative value, and the first end face is configured to form an avoidance space with the MPO connector to be tested, so that the standard optical fiber and the optical fiber to be tested are prevented from directly colliding when the test standard line is aligned with the MPO connector to be tested during polarity detection, and the standard optical fiber and the optical fiber to be tested are prevented from being damaged.
According to the polarity test standard line of the MPO connector, the arrangement of the avoidance space formed between the first end surface and the MPO connector to be tested realizes multiple purposes of the polarity test standard line, and the polarity test standard line is suitable for testing of PC products and APC products; the replacement of the polarity test standard wire is reduced, and the applicability and the universality of the polarity test standard wire of the MPO connector are improved.
The MPO connector detection system provided by the invention applies the polarity test standard line of the MPO connector, avoids the damage of the MPO connector to be tested, and can be suitable for MPO connectors to be tested of various products.
The MPO connector detection system provided by the invention adopts the multiple rate microscope, can simultaneously realize end face detection and polarity detection, can realize free dirt detection of the end face of the optical fiber ferrule, reduces the detection procedures of a production line and improves the production efficiency; the cleanliness of the end face is further improved, and the end face is prevented from being damaged by free dirt and influences on testing.
The MPO connector detection system provided by the invention can realize the scanning of MPO connectors to be detected with various specifications such as 8 cores, 12 cores, 16 cores, 24 cores and the like by adopting scanners with various scanning modes, and has wider applicability and stronger practicability.
Drawings
Fig. 1 is a schematic diagram of an alignment structure of a polarity test standard line of an MPO connector and an MPO connector to be tested of a PC product according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an alignment structure of a polarity test standard line of an MPO connector and an MPO connector to be tested of an APC product according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a detecting system for MPO connectors according to an embodiment of the present invention;
FIG. 4 is a process flow diagram of the inspection of MPO connectors using an inspection system incorporating an MPO connector provided by an embodiment of the present invention.
In the figure:
1. a polarity test standard line; 2. an MPO connector to be tested; 3. a first reference plane; 4. a scanner; 5. a single chip microcomputer; 6. a light source; 7. a microscope;
11. a first end face; 12. a standard optical fiber; 21. a second end face; 22. and (5) an optical fiber to be tested.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1 and 2, the present embodiment provides a polarity test standard line of an MPO connector, where the polarity test standard line 1 is aligned with the MPO connector 2 to be tested and is used for detecting the polarity of the MPO connector 2 to be tested, where the polarity test standard line 1 includes a standard line body, a standard fiber ferrule and a standard fiber 12, the standard fiber ferrule extends inward from a first end face 11 of the standard line body, the standard fiber 12 is disposed in the standard fiber ferrule, and a height of a connecting end of the standard fiber 12 extending out of the first end face 11 is a standard fiber height H, and the standard fiber height H is a negative value. The first end face 11 is configured to form an avoiding space with the MPO connector to be tested.
According to the polarity test standard line of the MPO connector, the height of the standard optical fiber of which the connecting end of the standard optical fiber 12 extends out of the first end face 11 of the standard line body is set to be a negative value, and the first end face 11 is configured to form an avoidance space with the MPO connector 2 to be tested, so that the standard optical fiber 12 is prevented from directly colliding with the optical fiber 22 to be tested when the test standard line is aligned with the MPO connector 2 to be tested during polarity detection, and the standard optical fiber 12 is prevented from being damaged by the optical fiber 22 to be tested.
Optionally, the standard fiber height H is between-500 nm and-3000 nm. In this embodiment, the MPO connector 2 to be tested includes a connector body, a fiber ferrule to be tested, and a fiber 22 to be tested, the fiber 22 to be tested is fixed in the fiber ferrule to be tested by glue, the height of the fiber 22 to be tested extending out of the second end face 21 of the connector body is the fiber height H1 to be tested, and the fiber height H1 to be tested is generally 1000nm to 3500 nm. When the polarity test is performed on the MPO connector 2 to be tested, the polarity test standard line 1 is arranged opposite to the MPO connector 2 to be tested, and the standard optical fiber 12 is optically connected with the optical fiber 22 to be tested so as to detect whether the position of the optical fiber 22 to be tested in the MPO connector 2 to be tested is correct.
Optionally, the first end face 11 is an oblique end face having a first angle α with respect to a first reference plane 3, the first reference plane 3 being perpendicular to the axis of the polarity test standard line 1. Specifically, the first angle α is 3 ° to 7 °. Preferably, in the present embodiment, the first angle α is 6 ° ± 0.5 °. Since the second end faces 21 of the MPO connectors of the PC product and the APC product have different structures, as shown in fig. 1, the second end faces 21 of the MPO connectors of the PC product are flat end faces. As shown in FIG. 2, the second end face 21 of the MPO connector of the APC product is provided with an inclination angle α1，α1Typically set at 8. In order to improve the applicability of the polarity test standard wire 1, so that the polarity test standard wire 1 can be suitable for both PC products and APC products, the first end face 11 is set to be an inclined end face, the first angle alpha of the inclined end face is 3-7 degrees, the height of the standard optical fiber is matched to be a negative value, and the standard optical fibers 12 and 12 are avoidedCollision of the optical fiber 22 under test.
In another optional embodiment of this embodiment, a connection block may also be disposed on the first end surface 11, a avoiding hole larger than the diameter of the standard optical fiber ferrule is disposed in the middle of the connection block corresponding to the position of the standard optical fiber ferrule, and the length of the connection block only needs to be larger than the sum of the height H of the standard optical fiber and the height H1 of the optical fiber to be tested, so as to avoid direct collision between the standard optical fiber 12 and the optical fiber 22 to be tested, and not to affect the optical performance during the polarity test.
In the polarity test standard line of the MPO connector provided by the embodiment, the arrangement of the avoidance space formed between the first end surface 11 and the MPO connector 2 to be tested realizes multiple purposes of the polarity test standard line 1, and is suitable for testing of both PC products and APC products; the switching of the polarity test standard wire 1 is reduced, and the applicability of the polarity test standard wire 1 of the MPO connector is improved.
As shown in fig. 3, this embodiment further provides a detection system of an MPO connector, where the polarity test standard line of the MPO connector is used to perform polarity detection on an MPO connector 2 to be detected, the detection system further includes a scanner 4, a single chip microcomputer 5, a light source 6, a microscope 7 and a display screen, the scanner 4 is connected to the single chip microcomputer 5, the light source 6 is connected to the polarity test standard line 1 of the MPO connector, the polarity test standard line 1 of the MPO connector is aligned with the MPO connector 2 to be detected, and the microscope 7 is electrically connected to the display screen.
The detection system for the MPO connector provided by the embodiment applies the polarity test standard line 1 of the MPO connector, avoids damage to the MPO connector 2 to be tested, and can adapt to the MPO connectors 2 to be tested of various products.
Optionally, the microscope 7 is a multi-magnification microscope. Specifically, the multi-magnification microscope comprises a first magnification and a second magnification, wherein the first magnification is smaller than the second magnification; when the multiplying power microscope is adjusted to be the first multiplying power, the free smudging detection and the polarity detection are used for the end face of the optical fiber ferrule of the MPO connector 2 to be detected; and when the multiple rate microscope is adjusted to the second rate, the MPO connector is used for end face detection of the MPO connector 2 to be detected. In the prior art, 6 detections need to be carried out in the production process of MPO connectors, including 3D detection, end face detection I, insertion, return loss detection, end face detection II, polarity detection and end face detection III, corresponding stations and equipment need to be equipped for each detection, and the production line is long. As shown in fig. 4, the detection system for the MPO connector provided in this embodiment combines end surface detection and polarity detection, so that the detection process for the MPO connector is as follows: 3D detects, terminal surface detects I and polarity detection, inserts, return loss detects and terminal surface detects II. The MPO connector detection system provided by the embodiment can improve the production efficiency by 30%.
The detection system of the MPO connector provided by the embodiment adopts the multiple rate microscope, can simultaneously realize end face detection and polarity detection, can realize free dirt detection of the end face of the optical fiber ferrule, reduces the detection procedures of a production line, and improves the production efficiency; the cleanliness of the end face is further improved, and the end face is prevented from being damaged by free dirt and influences on testing.
Specifically, the first multiplying power is 40 times, the display area is a rectangular area with the thickness of 4mm × 2.4mm, and the resolution is 1000 nm-1500 nm; the second multiplying power is 400 times, the display area is a circular area with phi 250um to phi 300um, and the resolution is 500nm to 600 nm. In the present embodiment, when the magnification microscope is adjusted to 40 magnifications, the positions of the cores in the optical fiber 22 to be detected can be observed for polarity detection; free fouling of the fiber ferrule end face can also be observed. When the magnification microscope was adjusted to 400 magnifications, scratches on the end faces and other damage were observed.
Optionally, the light source 6 is an LED array, and the power of the LED array is 0.2-0.5 mw, so as to ensure moderate brightness during polarity detection and end face detection.
Alternatively, the scanner 4 has a plurality of scanning modes for scanning MPO connectors 2 under test of a plurality of specifications. In this embodiment, the scanner 4 is a polarity light scanner, and can implement polarity tests on optical fibers 22 to be tested of various specifications, such as 8 cores, 12 cores, 16 cores, 24 cores, and the like.
The detection system of the MPO connector provided by this embodiment can realize scanning of the MPO connector 2 to be detected in various specifications, such as 8 cores, 12 cores, 16 cores, 24 cores, and the like, by using the scanners 4 in various scanning modes, and has wider applicability and stronger practicability.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (10)
1. A polarity test standard line of an MPO connector, the polarity test standard line (1) being aligned with an MPO connector (2) to be tested and used for detecting the polarity of the MPO connector (2) to be tested, characterized in that the polarity test standard line (1) comprises a standard line body, a standard fiber stub and a standard fiber (12), the standard fiber stub extends inwards from a first end face (11) of the standard line body, the standard fiber (12) is arranged in the standard fiber stub, and the height of a connecting end of the standard fiber (12) extending out of the first end face (11) is a standard fiber height H, and the standard fiber height H is a negative value; the first end face (11) is configured to form an avoiding space with the MPO connector (2) to be tested.
2. The polarity test master wire for MPO connectors according to claim 1, wherein the standard fiber height H is between-500 nm and-3000 nm.
3. The MPO connector polarity test master line according to claim 2, wherein the first end face (11) is a beveled end face having a first angle α with respect to a first reference plane (3), the first reference plane (3) being perpendicular to the axis of the polarity test master line (1).
4. The MPO connector polarity test standard wire of claim 3, wherein the first angle a is 3-7 °.
5. An MPO connector detection system, characterized in that polarity detection is carried out on an MPO connector (2) to be detected by adopting the polarity test standard line of the MPO connector according to any one of claims 1 to 4, the MPO connector detection system further comprises a scanner (4), a single chip microcomputer (5), a light source (6), a microscope (7) and a display screen, wherein the scanner (4) is connected with the single chip microcomputer (5), the light source (6) is connected to the polarity test standard line (1) of the MPO connector, the polarity test standard line (1) of the MPO connector is aligned with the MPO connector (2) to be detected, and the microscope (7) is electrically connected with the display screen.
6. The MPO connector inspection system according to claim 5, wherein the microscope (7) is a multi-magnification microscope.
7. The MPO connector inspection system of claim 6, wherein the multi-magnification microscope comprises a first magnification and a second magnification, the first magnification being less than the second magnification; when the multi-magnification microscope is adjusted to the first magnification, the free smudging detection and the polarity detection are used for the end face of the optical fiber ferrule of the MPO connector (2) to be detected; and when the multi-magnification microscope is adjusted to the second magnification, the multi-magnification microscope is used for detecting the end face of the MPO connector (2) to be detected.
8. The MPO connector inspection system of claim 7, wherein the first magnification is 40 times, the display area is a rectangular area of 4mm by 2.4mm, and the resolution is 1000nm to 1500 nm; the second multiplying power is 400 times, the display area is a circular area with phi 250um to phi 300um, and the resolution is 500nm to 600 nm.
9. The MPO connector inspection system of claim 5, wherein the light source (6) is an LED array having a power of 0.2-0.5 mW.
10. The MPO connector inspection system according to claim 5, wherein the scanner (4) has a plurality of scanning modes for scanning a plurality of specifications of the MPO connectors (2) to be inspected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010656682.7A CN111811781B (en) | 2020-07-09 | 2020-07-09 | Polarity test standard line and detection system of MPO connector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010656682.7A CN111811781B (en) | 2020-07-09 | 2020-07-09 | Polarity test standard line and detection system of MPO connector |
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| CN111811781A true CN111811781A (en) | 2020-10-23 |
| CN111811781B CN111811781B (en) | 2022-10-04 |
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Cited By (1)
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| CN113670578A (en) * | 2021-09-07 | 2021-11-19 | 江苏亨通光电股份有限公司 | Optical performance test wire and optical test device for multi-core optical fiber array connector |
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