CN210323233U - Quick testing arrangement of radio frequency step attenuator - Google Patents
Quick testing arrangement of radio frequency step attenuator Download PDFInfo
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- CN210323233U CN210323233U CN201921082088.0U CN201921082088U CN210323233U CN 210323233 U CN210323233 U CN 210323233U CN 201921082088 U CN201921082088 U CN 201921082088U CN 210323233 U CN210323233 U CN 210323233U
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Abstract
The utility model relates to an attenuator testing tool field discloses a quick testing arrangement of radio frequency step attenuator, including radio frequency signal source, DC power supply, spectral analysis appearance and test control box, radio frequency signal source is connected with the input by test attenuator through first radio frequency line, and the output by test attenuator passes through second radio frequency line connection spectral analysis appearance, DC power supply passes through the power wire and connects test control box, test control box are connected to the control end by test attenuator through the control winding displacement, test control box can control different gears and trigger the gear voltage that corresponds by test attenuator. The utility model discloses a test control box replaces direct electric drive, can test multiple operating voltage's attenuator, and whether quick judgement radio frequency step attenuator's performance meets the requirements, makes things convenient for maintainer's operation.
Description
Technical Field
The utility model relates to an attenuator testing tool field particularly, relates to a quick testing arrangement of radio frequency step attenuator.
Background
The radio frequency attenuator is an important instrument applied to microwave technology, and the radio frequency attenuator cannot be separated in radar, multi-channel communication systems and other power transmission loss and received signal measurement. The sensitivity and the measurement accuracy of the radio frequency attenuator are closely related to the smooth production, and the measurement of the radio frequency attenuator is closely related to the establishment of microwave power, the determination of a noise standard and the accuracy of attenuation correction. In the microwave equipment, the radio frequency step attenuator has more related components, and is also a fault high-power component, so that the maintenance amount is large. In the maintenance process of the radio frequency microwave instrument, the whole fault machine system is generally powered up, the process is slow, the accuracy is not high, and the maintenance efficiency of the whole instrument is low.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a quick testing arrangement of radio frequency step attenuator need not add the power to a complete set of fault machine system, and adopts the mode of outside independent test, judgement radio frequency step attenuator's that can be quick, accurate performance.
The utility model adopts the technical proposal that: the utility model provides a quick testing arrangement of radio frequency step attenuator, includes radio frequency signal source, DC power supply, spectral analysis appearance and test control box, radio frequency signal source is connected with the input by test attenuator through first radio frequency line, and the output by test attenuator passes through the second radio frequency line and connects the spectral analysis appearance, DC power supply passes through the power wire and connects test control box, test control box are connected to the control end by test attenuator through the control winding displacement, test control box can control different gears and trigger the gear voltage that corresponds by test attenuator.
Further, the test control box comprises an input interface used for connecting a direct current power supply, a plurality of button switches used for controlling different gears, and an output interface used for connecting the attenuator under test.
Furthermore, the output port comprises a double-row pin type output interface and a circular output interface.
Furthermore, the button switches are provided with 9 groups, and each group of button switches is electrically connected with the input interface and the output interface.
Furthermore, the test control box is provided with a power indicator light for marking the working state of the test control box.
Further, the joint of the first radio frequency wire and the second radio frequency wire is a rotary joint or a plug-in joint.
The utility model has the advantages that:
the signal of the radio frequency signal source enters the input end of the attenuator to be tested through the first radio frequency line and then is output to the spectrum analyzer through the second radio frequency line from the output end of the attenuator to be tested. The direct current power supply does not directly supply power to the attenuator to be tested, the voltage of the direct current power supply is controlled by the test control box in different gears, and the direct current power supply can be switched to the voltage corresponding to each gear of the attenuator to be tested only by pressing a button switch of the test control box in the test process. The test control box of the test device uses the button switch instead of direct electric drive, can test attenuators of various working voltages, and can independently test or distributively test the attenuation of certain level of attenuation of the radio frequency step attenuator. Whether the performance of the radio frequency step attenuator meets the requirements or not can be accurately and quickly judged by setting the radio frequency signal source and visually reading the spectrum analyzer, the device does not need to power up the whole maintenance equipment system, only needs to externally and independently test the radio frequency step attenuator, and is safe and quick, and convenient for operation of maintainers.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic circuit diagram of the test control box of the present invention.
Reference numerals: the method comprises the following steps of 1-a radio frequency signal source, 2-a direct current power supply, 3-a spectrum analyzer, 4-a test control box, 5-a second radio frequency line, 6-a first radio frequency line, 7-a power supply lead, 8-a control flat cable, 9-a tested attenuator, 10-a power supply indicator lamp, 11-a button switch, 12-a double-row pin type output interface, 13-a circular output interface and 14-an input interface.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings.
Referring to fig. 1, a radio frequency step attenuator testing arrangement, including radio frequency signal source 1, dc power supply 2, spectrum analyzer 3 and test control box 4, radio frequency signal source 1 is connected to the input of being tested attenuator 9 through first radio frequency line 6, and the output of being tested attenuator 9 passes through second radio frequency line 5 and connects spectrum analyzer 3, dc power supply 2 passes through power wire 7 and connects test control box 4, and test control box 4 is connected to the control end of being tested attenuator 9 through control winding displacement 8, test control box 4 can control different gears and trigger the gear voltage that is tested attenuator 9 and corresponds. The signal of the radio frequency signal source 1 enters the input end of the attenuator under test 9 through the first radio frequency line 6, and then passes through the second radio frequency line 5 from the output end of the attenuator under test 9 and is output to the spectrum analyzer 3. The direct current power supply 2 does not directly supply power to the attenuator 9 to be tested, the voltage of the direct current power supply is controlled in different gears through the test control box 4, then the direct current power supply is connected with the control end of the attenuator 9 to be tested through the control flat cable 8, and each attenuation gear of the attenuator 9 to be tested is triggered through the test control box 4.
The test control box 4 comprises an input interface 14 for connecting the direct current power supply 2, a plurality of push-button switches 11 for controlling different gears, and an output interface for connecting the attenuator under test 9. The output port comprises a double-row pin type output interface 12 and a circular output interface 13 which are used for connecting the tested attenuators 9 with different interface types. In addition, the test control box 4 is further provided with a power indicator lamp 10 for identifying the working state of the test control box 4. Fig. 2 is a schematic circuit connection diagram of the test control box, the test control box is provided with 9 groups of button switches, which are k1, k2, k3, k4, k5, k6, k7, k8 and k9, each group of button switches is connected with the double-row pin type output interface J2 and the circular output interface J3, and the on-off of the circuits of the input interface and the output interface is controlled by the button switches. The power indicator lamp D1 is connected in series with the button switch for displaying the working state of the circuit.
In this embodiment, the control end of the attenuator under test 9 is connected to the dual-row pin type output interface 12 of the test control box 4 through the control flat cable 8, and each group of pins of the dual-row pin type output interface 12 corresponds to a corresponding line of the control flat cable 8, so that each group of button switches 11 corresponds to a corresponding gear of the attenuator under test 9.
The joints of the connecting wires involved in the test device, such as the first radio frequency wire 6 and the second radio frequency wire 5, adopt rotary or plug-in joints. The frequency of the radio frequency signal source 1 is dozens of KHz to 1GHz, and can provide 0dBm level, the direct current power supply 2 can provide adjustable stable voltage of 0-30V and current more than 1A, the working frequency of the spectrum analyzer 3 is 1GHz, and the auxiliary instrument of the testing device is arranged above the frequency.
When the test device is used, firstly, the radio frequency signal source 1 is connected to the input end of the attenuator under test 9 by the first radio frequency line 6, and the output end of the attenuator under test 9 is connected to the spectrum analyzer 3 by the second radio frequency line 5. The DC power supply 2 is connected to the input interface 14 of the test control box 4 by the power wire 7, and the control port of the attenuator under test 9 is connected to the output port of the test control box 4 by the control cable 8 (the selection is to be connected to the double-row pin type output interface 12 or the circular output interface 13 according to the interface type of the control port of the attenuator under test 9). After the test connection is ready, the working state of each auxiliary instrument is set, the radio frequency signal source 1 is generally set to be 100MHz and 0dBm in level, the voltage of the direct current power supply 2 is set according to the index of the radio frequency step attenuator, the frequency of the spectrum analyzer 3 is set to be 100MHz, and the SPAN is set to be 10 MHz. Then, the output of the DC power supply 2 is turned on, and a corresponding voltage value is set according to the working voltage of the attenuator to be tested 9, and at the moment, the power indicator lamp 10 on the test control box 4 is turned on to indicate that the power supply is normal. When the test is started, a certain button switch 11 is pressed to trigger the voltage of the gear corresponding to the attenuator to be tested 9, and the attenuation value of the gear corresponding to the attenuator to be tested 9 is observed on the spectrum analyzer 3; then the button switch 11 is released, the next button switch 11 is pressed, the voltage of the next gear of the tested attenuator 9 is triggered, and the attenuation value displayed by the spectrum analyzer 3 is observed; by repeating the operation, the attenuation value of each gear of the attenuator can be quickly measured, and whether the performance of the tested attenuator 9 is normal or not is judged.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A kind of radio frequency step attenuator fast test device, characterized by that: including radio frequency signal source, DC power supply, spectral analysis appearance and test control box, radio frequency signal source is connected with the input by the test attenuator through first radio frequency line, and the output by the test attenuator passes through the second radio frequency line and connects the spectral analysis appearance, DC power supply passes through the power wire and connects test control box, test control box are connected to the control end by the test attenuator through the control winding displacement, test control box can control different gears and trigger the gear voltage that corresponds by the test attenuator.
2. The fast testing apparatus for a radio frequency step attenuator according to claim 1, wherein: the test control box comprises an input interface used for connecting a direct current power supply, a plurality of button switches used for controlling different gears, and an output interface used for connecting the attenuator to be tested.
3. The fast testing apparatus for a radio frequency step attenuator according to claim 2, wherein: the output interface comprises a double-row pin type output interface and a circular output interface.
4. The fast testing apparatus for a radio frequency step attenuator according to claim 2, wherein: the button switch is provided with 9 groups, and each group of button switches is electrically connected with the input interface and the output interface.
5. The fast testing apparatus for a radio frequency step attenuator according to claim 2, wherein: the test control box is provided with a power indicator light for marking the working state of the test control box.
6. The apparatus for rapidly testing a radio frequency step attenuator according to any one of claims 1 to 5, wherein: the joint of the first radio frequency wire and the second radio frequency wire is a rotary joint or a plug-in joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921082088.0U CN210323233U (en) | 2019-07-11 | 2019-07-11 | Quick testing arrangement of radio frequency step attenuator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921082088.0U CN210323233U (en) | 2019-07-11 | 2019-07-11 | Quick testing arrangement of radio frequency step attenuator |
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| CN210323233U true CN210323233U (en) | 2020-04-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922891A (en) * | 2021-09-25 | 2022-01-11 | 深圳市钛和巴伦技术股份有限公司 | Device and method for testing radiation leakage of radio frequency connector |
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2019
- 2019-07-11 CN CN201921082088.0U patent/CN210323233U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922891A (en) * | 2021-09-25 | 2022-01-11 | 深圳市钛和巴伦技术股份有限公司 | Device and method for testing radiation leakage of radio frequency connector |
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