CN203464929U - Antenna primary side precision sample plate detection device - Google Patents
Antenna primary side precision sample plate detection device Download PDFInfo
- Publication number
- CN203464929U CN203464929U CN201320552887.6U CN201320552887U CN203464929U CN 203464929 U CN203464929 U CN 203464929U CN 201320552887 U CN201320552887 U CN 201320552887U CN 203464929 U CN203464929 U CN 203464929U
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- antenna
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- reflecting surface
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Abstract
The utility model discloses an antenna primary side precision sample plate detection device which is characterized in that a section type sample plate is manufactured and used as a measurement standard, a measuring tool is used for detecting the actual gap value of an antenna reflector measurement point so as to further determine the error of the antenna reflector. The device is provided with a rotating shaft (1), the rotating shaft (1) is provided with at least one bracket (2), an antenna is upward placed and the bracket is positioned on the antenna; the device further comprises at least one sample plate (3) manufactured according to the section shape of the antenna, the sample plate (3) is fixed on the bracket and inserted into an antenna central sample plate seat positioning hole and is capable of rotating around the shaft. When the antenna primary side precision detection is performed, the corresponding sample plate can be manufactured according to the theoretical size of the antenna, and then the sample plate and the antenna are arranged on the detection device provided by the utility model, so that the fast detection in batch is realized.
Description
Technical field
The utility model relates to a kind of antenna interarea precision model pick-up unit, belongs to the antenna technical field in communication facilities.
Background technology
The wireless devices such as communication, radar, remote sensing, broadcast, TV, navigation, are all to rely on radiowave to carry out work, all need to have radiation and the reception of radiowave.We call antenna the device of radiation or reception radiowave.The form of antenna is a lot, but antenna all has a reflecting surface conventionally, and the precision of reflecting surface is to weigh the important indicator of assessment antenna quality, it not only directly affects the aperture efficiency of antenna, thereby determine the minimal wave length that this antenna can be worked, also affect main lobe width and the sidelobe structure of antenna radiation pattern.By antenna surface is measured, determine its surface accuracy, by surface accuracy, can extrapolate its impact on antenna performance.The surface accuracy of reflecting surface requires there is relation with frequency of operation, and frequency of operation is higher, and the requirement of effects on surface precision is just tighter.The method of existing detection antenna surface precision is a lot, but or precision is not enough, or high cost, testing process is too complicated, also has very large room for improvement.
Summary of the invention
The purpose of this utility model provides a kind of antenna interarea precision model pick-up unit, to improve accuracy of detection, reduces testing cost, simplifies detecting step, realizes streamlined in batches and detects, thereby overcome the deficiencies in the prior art.
For realizing the purpose of this utility model, a kind of antenna interarea precision model detection method of the present utility model is to produce a tangent plane templet, and using this model as measuring basis, with measurer, detect the actual gap value of antenna reflective face measurement point, and then definite antenna reflective face error size.Furthermore, with physical material, make the tangent plane templet of an ideal antenna, gage work limit is shaped as a curve equidistant with the theoretical curve of antenna, the antenna of adjustment to be detected is placed to leveling towards sky, model inserts in the pilot hole of center of antenna model seat, model rotates to any one position of tested antenna curved surface, just formed the datum curve of this position, model is when antenna theory axle rotates, the equidistant curve of model forms a surface of revolution equidistant with theoretical curved surface, Here it is detects as reflecting surface the benchmark curved surface of adjusting foundation, the distance of some measurement points and equidistant benchmark curved surface on the actual reflectings surface of measurement antenna such as recycling clearance gauge or dial gauge, obtain the difference of it and theoretical value, and then the precision of definite reflecting surface.
For realizing above-mentioned method, antenna interarea precision model pick-up unit of the present utility model, comprises the reflecting surface of antenna, and wherein it is provided with a turning axle, and turning axle is provided with at least one support, and antenna is placed towards sky and described support is positioned on antenna; It also comprises at least one model of producing according to antenna tangent plane shape, and this model is fixed on support and is inserted in center of antenna model seat pilot hole and can rotates around turning axle.
Further, model is can be around rotation model or the three-dimensional combination model of center of antenna axle rotation.
Further, support is generally provided with at least one for the counterweight of its leveling.
When further, model rotates or when solid combines, form a model curved surface.
Further, between aforesaid reflecting surface and model curved surface, with instruments such as clearance gauges, measure its gap.
Owing to having adopted the technical solution of the utility model, when carrying out antenna interarea accuracy detection, only need to produce corresponding model according to the theoretical size of antenna, then pick-up unit of the present utility model is placed on antenna, can realize rapid batchization and detect.The operating personnel that need in testing process are less, and testing process is easy, and can guarantee higher accuracy of detection.That the utility model has is easy to detect, intuitively, feature fast, but also exist the making workload of the especially large-scale model of sample making larger, model is difficult for the deficiencies such as transportation and preservation.But under current technical conditions, can be described as the detection technique that a kind of cost is lower and very practical.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Being labeled as of accompanying drawing: 1-turning axle, 2-support, 3-model, 4-counterweight, 5-clearance gauge, 6-reflecting surface, 7-theoretical curve, 8-typical curve.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Model mensuration principle of the present utility model: if antenna reflector is the reflecting body of rotatable shaping, just can make a rotation model.If antenna reflector is non-rotating reflecting body, can adopt three-dimensional combination model to detect whole reflecting surface.
The rotation model of take below illustrates as example, as shown in Figure 1, with physical material, make the tangent plane templet 3 of an ideal antenna, model 3 working edges are shaped as one and can divide axially equidistant equidistantly with normal direction with the equidistant typical curve 8(of the theoretical curve 7 of antenna, commonly use normal direction equidistant); The antenna of adjustment to be detected is placed to leveling towards sky, then model 3 is contained on antenna to be measured, antenna has a reflecting surface 6; Model 3 is in a certain position of tested antenna, just formed the datum curve of this position, model is when 1 rotation of antenna turning axle, the equidistant curve of model forms a surface of revolution equidistant with theoretical curved surface, Here it is detects as reflecting surface 6 the benchmark curved surface of adjusting foundation, recycling clearance gauge 5 is measured on the actual reflecting surface 6 of antenna some measurement points and the equidistant distance of benchmark curved surface, obtains the difference (being error) of it and theoretical value (equidistantly value).And then calculate the true form of reflecting surface 6 and the deviation of theoretical shape size, the degree of agreement of actual reflecting surface and theoretical reflecting curved surface height, determines whether this reflecting surface 6 meets design requirement.
See Fig. 1, supposing has a theoretical curve 7 according to the reflecting surface standard of antenna, and typical curve 8 is and theoretical curve 7 equidistant curve everywhere, (this equidistant value is made as different values according to different purposes, but a certain model is fixed).And the reflecting surface 6 of antenna is an actual curve in this position profile, this actual curve and theoretical curve 7 can not coincide everywhere, that is to say that with theoretical curve 7 be not that distance is zero everywhere, but have certain positioning error.What utilize that clearance gauge 5(clearance gauge 5 measures is that the normal direction of reflecting surface 6 is equidistantly worth) or other similar survey instrument, measure the actual gap value of measurement point, by equidistant value, subtract and survey the error that gap width is this measurement point.On reflecting surface 6, measure as required the measurement point of some, each measurement point can produce a measured value, has obtained the normal direction site error of this point, and the measurement point of right quantity just can obtain statistical reflecting surface 6 accuracy value, be profile precision, generally with root mean square, represent.
For instance, the typical curve of certain model 38 and equidistant 5 millimeters of theoretical curve 7 are surveyed 4.7 millimeters of the range readings of certain point and typical curve 8 on reflecting surface 6, and the error of this point is 5-4.7=0.3 millimeter.Another reading is 5.2, and this point tolerance is 5 – 5.2=-0.2 millimeter.
Embodiment of the present utility model is not limited to above-described embodiment, and the various variations of making under the prerequisite that does not depart from the utility model aim all belong to protection domain of the present utility model.
Claims (6)
1. an antenna interarea precision model pick-up unit, the reflecting surface (6) that comprises antenna, it is characterized in that: it is provided with a turning axle (1), turning axle (1) is provided with at least one support (2), and antenna is placed towards sky and described support (2) is positioned on antenna; It also comprises at least one model (3) of producing according to antenna tangent plane shape, and this model (3) is fixed on support (2) and goes up and be inserted in center of antenna model seat pilot hole and can rotate around the axis.
2. antenna interarea precision model pick-up unit according to claim 1, is characterized in that: the rotation model of model (3) for rotating around center of antenna axle.
3. antenna interarea precision model pick-up unit according to claim 1, is characterized in that: described model (3) is three-dimensional combination model.
4. antenna interarea precision model pick-up unit according to claim 2, is characterized in that: described support (2) is provided with at least one counterweight for its leveling (4).
5. according to the antenna interarea precision model pick-up unit described in claim 2 or 3, it is characterized in that: during described model (3) rotation or when solid combines, form a model curved surface (8).
6. antenna interarea precision model pick-up unit according to claim 5, is characterized in that: between described reflecting surface (6) and model curved surface (8), be provided with clearance gauge (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320552887.6U CN203464929U (en) | 2013-09-06 | 2013-09-06 | Antenna primary side precision sample plate detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320552887.6U CN203464929U (en) | 2013-09-06 | 2013-09-06 | Antenna primary side precision sample plate detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203464929U true CN203464929U (en) | 2014-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320552887.6U Expired - Fee Related CN203464929U (en) | 2013-09-06 | 2013-09-06 | Antenna primary side precision sample plate detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203464929U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776345A (en) * | 2013-09-06 | 2014-05-07 | 贵州振华天通设备有限公司 | Method and device for detecting sample plate of antenna primary side precision |
| CN112697092A (en) * | 2021-01-28 | 2021-04-23 | 哈尔滨工业大学 | Detection device and detection method for precision of inner profile of curved surface member |
-
2013
- 2013-09-06 CN CN201320552887.6U patent/CN203464929U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776345A (en) * | 2013-09-06 | 2014-05-07 | 贵州振华天通设备有限公司 | Method and device for detecting sample plate of antenna primary side precision |
| CN112697092A (en) * | 2021-01-28 | 2021-04-23 | 哈尔滨工业大学 | Detection device and detection method for precision of inner profile of curved surface member |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20190906 |