CN110672942A - High-power test device and test method for amplitude limiting field amplifier plug-in - Google Patents
High-power test device and test method for amplitude limiting field amplifier plug-in Download PDFInfo
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- CN110672942A CN110672942A CN201910907920.4A CN201910907920A CN110672942A CN 110672942 A CN110672942 A CN 110672942A CN 201910907920 A CN201910907920 A CN 201910907920A CN 110672942 A CN110672942 A CN 110672942A
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
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Abstract
The invention relates to the field of electronic device tests, in particular to a high-power test device and a test method for a limiting field amplifier plug-in unit. The power combiner is connected with a first adapter through a hard feeder, the first adapter is connected with an input port of a three-terminal circulator, an output end of the three-terminal circulator is connected with a second adapter, the other end of the second adapter is connected with a directional coupler, a radio frequency output port of the directional coupler is connected with a third adapter, and the third adapter is connected with a tested amplitude limiting field amplifier plug-in unit; the isolation port of the directional coupler is connected with the coupling load, the test port of the directional coupler is connected with the attenuator, and the attenuator is connected with the power test instrument; and the load end of the three-end circulator is connected with a fourth adapter, and the fourth adapter is connected with a high-power load. The invention ensures the stable and reliable power output of the test device, improves the reliability of the test result, and has higher stability and convenience of the test device.
Description
Technical Field
The invention relates to the field of electronic device tests, in particular to a high-power test device and a test method for a limiting field amplifier plug-in unit.
Background
With the development of radar technology, the power that the amplitude limiting field amplifier plug-in needs to endure is larger and larger, the requirement of the anti-burning capability of the plug-in reaches a higher level, and the radar cannot work normally after the plug-in is damaged due to the fact that the power is too large. Therefore, the high-power burnout resistance of the limiting field amplifier plug-in is directly related to the reliability of the radar, and the limiting field amplifier plug-in must be subjected to a strict high-power burnout resistance test.
The test of the burnout resistance of the amplitude limiting field amplifier plug-in is mainly to output a pulse radio frequency signal after power amplification to the amplitude limiting field amplifier plug-in for carrying out a test of the burnout resistance of the amplitude limiting field amplifier plug-in. The combined test device lacks systematic design in the aspects of structure and telecommunication, the output power is small, and testers cannot accurately acquire the peak power and the average power output to the amplitude limiting field amplifier plug-in unit by the test device in real time. Therefore, there are the following problems: 1) the reliability of the test results cannot be fundamentally guaranteed. 2) The stability and the convenience of the testing device are low, and the problems of long working time, high labor intensity and low working efficiency of testing personnel are caused by the frequent occurrence of the conditions of setting instrument parameters, replacing wiring ports and debugging faults. 3) The loss of signal transmission is large, thereby reducing the measurement accuracy.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a high-power test device and a test method for a limiting field amplifier plug-in unit. The testing device provided by the invention is systematically designed in the aspects of telecommunication, structure, heat dissipation, safety and the like according to the requirement of a high-power burnout resistance test, so that stable and reliable power output of the testing device is ensured, the peak power and the average power output to a tested piece by the testing device are quickly and accurately measured, the reliability of a test result is improved, and the stability and the convenience of the testing device are higher.
The technical scheme of the invention is as follows: amplitude limiting field amplifier plug-in boardThe power test device comprises a cabinet, wherein the cabinet is divided into an upper area, a lower left area and a lower right area; the method is characterized in that: the upper area is provided with a hard feeder line, a three-terminal circulator, a directional coupler, a coupling load, an attenuator, a first adapter, a second adapter, a third adapter and a fourth adapter, a power combiner is connected with the first adapter through the hard feeder line, the first adapter is connected with a No. 1 input port of the three-terminal circulator, a No. 2 output end of the three-terminal circulator is connected with the second adapter, the other end of the second adapter is connected with the directional coupler, a radio frequency output port of the directional coupler is connected with the third adapter, and the third adapter is connected with a tested amplitude limiting field amplifier plug-in unit; the isolation port of the directional coupler is connected with the coupling load, the test port of the directional coupler is connected with the attenuator, and the attenuator is connected with the power test instrument; the No. 3 load end of the three-end circulator is connected with a fourth adapter, and the fourth adapter is connected with a high-power load; the left area of the lower part of the cabinet comprises a power component, a power distributor, a power synthesizer, a fan mounting rack, a centrifugal fan, a wind guide ring, a static pressure box and a guide rail; the power distributor is connected with the power component, the power component is connected with the power synthesizer, the guide rail is fixed on the cabinet, the power component is installed on the guide rail, a fan installation frame is installed on the cabinet at the rear part of the power component, and a centrifugal fan, a wind guide ring and a static pressure box are installed on the fan installation frame; right lower part of the cabinetThe area comprises a high-power load, an axial flow fan, a switch power supply pack, a power supply module, a preceding stage power amplifier and a left stage power amplifierThe power supply module is fixed on the cabinet, and a preceding-stage power amplifier is connected with the power distributor.
According to the high-power test device of the limiting field amplifier card, the high-power test device is characterized in that: the control interface panel is fixed at the front end of the upper area.
According to the high-power test device of the limiting field amplifier card, the high-power test device is characterized in that: the four universal brake trundles are arranged at the bottom of the cabinet.
According to the high-power test device of the limiting field amplifier card, the high-power test device is characterized in that: a framework of the cabinet is formed by welding after a Q195 thin steel plate with the thickness of 1mm is bent into an opposite beam.
A high-power test method for a limiting field amplifier card is characterized by comprising the following steps: after the power synthesized by the power synthesizer is sent to the directional coupler through the three-terminal circulator, the power output by the radio frequency output port of the directional coupler is used for a test of the high-power burnout resistance of the amplitude limiting field amplifier plug-in unit, and the coupling port of the directional coupler is connected with an attenuator and used for measuring the power output by the test device.
The invention has the beneficial effects that: during testing, the tested amplitude limiting field amplifier plug-in is connected to the testing port, the testing device is electrified, the radio frequency signal is input, the peak power value and the average power value input to the tested piece can be measured in real time through the power measuring instrument, the high-power anti-burning test of the amplitude limiting field amplifier plug-in can be completed quickly, safely and reliably, the working time of testers is reduced, the labor intensity of the testers is reduced, and the working efficiency of the testers is improved; the loss of signal transmission is small, and the measurement precision is improved; the test result is reliable, and the test results of different batches are almost the same.
Drawings
FIG. 1 is a front view of the test device;
FIG. 2 is a cross-sectional view of test device A-A;
FIG. 3 is a cross-sectional view of test unit B-B;
FIG. 4 is a diagram of a control interface panel of the test device;
FIG. 5 is a diagram of the overall interface relationship of the test apparatus;
FIG. 6 is a diagram showing the relationship between the front-stage power amplifier interface;
FIG. 7 is a power component interface relationship diagram;
FIG. 8 is a diagram of switching power pack interface relationships;
FIG. 9 is a power module interface relationship diagram;
FIG. 10 is a power divider interface diagram;
FIG. 11 is a power combiner interface diagram;
FIG. 12 is a three-terminal circulator interface diagram;
FIG. 13 is a directional coupler interface diagram;
description of reference numerals: the power assembly comprises a power component 1, a hard feeder 2, a control interface panel 3, a cabinet 4, a high-power load 5, an axial flow fan 6, a switching power supply pack 7, a power supply module 8, a power distributor 9, a power combiner 10, a three-terminal circulator 11, a preceding-stage power amplifier 12, a directional coupler 13, a coupling load 14, an attenuator 15, a first adapter 16, a second adapter 17, a third adapter 18, a fourth adapter 19, a fan mounting rack 20, a centrifugal fan 21, a wind guide ring 22, a static pressure box 23, a guide rail 24, a left corner fitting 25, a right corner fitting 26 and a universal brake caster 27.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings.
As shown in fig. 1 to 13, the high-power test device for the limiting field discharging plug-in unit of the invention includes a power assembly 1, a hard feeder 2, a control interface panel 3, a cabinet 4, a high-power load 5, an axial flow fan 6, a switching power supply set 7, a power supply module 8, a power distributor 9, a power combiner 10, a three-terminal circulator 11, a pre-stage power amplifier 12, a directional coupler 13, a coupling load 14, an attenuator 15, a first adapter 16, a second adapter 17, a third adapter 18, a fourth adapter 19, a fan mounting rack 20, a centrifugal fan 21, a wind guide ring 22, a static pressure box 23, a guide rail 24, a left corner piece 25, a right corner piece 26, and a universal brake caster 27.
As shown in fig. 1 to 3, the cabinet 4 in the high-power testing apparatus for the limiting field amplifier card of the present invention is divided into three regions: an upper region, a lower left region, and a lower right region. The upper area is provided with a high-power coupling and output device, which specifically comprises the following devices, namely a hard feeder 2, a control interface panel 3, a three-terminal circulator 11, a directional coupler 13, a coupling load 14, an attenuator 15, a first adapter 16, a second adapter 17, a third adapter 18 and a fourth adapter 19. The power combiner 10 in the area is connected with a first adapter 16 through a hard feeder 2, the first adapter 16 is connected with a No. 1 input port of a three-terminal circulator 11, a No. 2 output end of the three-terminal circulator 11 is connected with a second adapter 17, the other end of the second adapter 17 is connected with a directional coupler 13, a radio frequency output port of the directional coupler 13 is connected with a third adapter 18, and the third adapter 18 is connected with a tested amplitude limiting field placing plug-in. The isolated port of the directional coupler 13 is connected to the coupling load 14, the test port of the directional coupler 13 is connected to the attenuator 15, and the attenuator 15 is connected to the power test instrument. The No. 3 load end of the three-terminal circulator 11 is connected with a fourth adapter 19, the fourth adapter 19 is connected with a high-power load 5, and the peak power of the high-power load is 5 kW.
The cabinet 4 in the testing device of the invention places the high-power coupling and output device in the upper area of the equipment, and is convenient to be connected with the tested amplitude limiting field plug-in and the power testing instrument; the high-power coupling and output devices are arranged in the same area, so that the structure is compact, debugging and installation are facilitated, and the loss of signal transmission is reduced. The control interface panel 3 of the invention is fixed at the front end of the upper area, which is convenient for the test personnel to carry out test operation. The hard feeder 2, the three-terminal circulator 11, the directional coupler 13, the first adapter 16, the second adapter 17, the third adapter 18 and the fourth adapter 19 in the upper area of the invention all adopt hard coaxial feeder lines to connect and transmit radio frequency signals, and the efficiency and the reliability of radio frequency signal transmission can be effectively improved.
As shown in fig. 1 to 3, the left area of the lower part of the cabinet 4 in the testing apparatus of the present invention includes a power assembly 1, a power divider 9, a power combiner 10, a fan mounting bracket 20, a centrifugal fan 21, a wind guide ring 22, a static pressure box 23, and a guide rail 24. In the region, the power divider 9 is connected with the power component 1, the power component 1 is connected with the power combiner 10, the number of the power components 1 can be added or deleted according to the actual power size, and the case of 4 power components 1 is shown in fig. 1. The guide rail 24 of the invention is fixed on the cabinet 4, and the power component 1 is arranged on the guide rail 24, thereby being convenient for assembly and maintenance. A fan mounting frame 20 is mounted on the cabinet 4 at the rear part of the power component 1, and a centrifugal fan 21, an air guide ring 22 and a static pressure box 23 are mounted on the fan mounting frame 20 to dissipate heat of the power component 1 and the switching power supply pack 7.
In the testing device, the centrifugal fan 21, the power component 1 and the switching power supply pack 7 are in wind path connection through the wind guide ring 22 and the static pressure box 23 in the left area of the lower part of the cabinet 4 in a centralized heat radiation mode, so that the main heating device power component 1 and the switching power supply pack 7 of the testing device can be rapidly radiated, the heat radiation efficiency is high, fan noise is concentrated at the rear part of the testing device and isolated and vibration-reduced, and the noise interference generated by the heat radiation device is reduced. The power combiner 10, the power divider 9 and the power component 1 are arranged from top to bottom in sequence, so that the lengths of the radio frequency signal connecting cables can be kept consistent, and the consistency of the power combined and divided radio frequency signals can be well ensured.
As shown in fig. 1 to 3, the right area of the lower part of the cabinet 4 in the testing apparatus of the present invention includes a high power load 5, an axial flow fan 6, a switching power supply pack 7, a power supply module 8, a front stage power amplifier 12, a left corner fitting 25, and a right corner fitting 26. The high-power load 5 and the fourth adapter 19 in the upper area in the area enable the connection path of the high-power load 5 and the fourth adapter 19 to be shortest, and connection is convenient. The axial flow fan 6 is installed on the upper portion of the high-power load 5 to dissipate heat of the high-power load 5. The switching power supply pack 7 is fixed on the cabinet 4 through the left corner piece 25 and the right corner piece 26, and the switching power supply pack 7 can be moved out of the cabinet 4 through sliding on the mounting surfaces of the left corner piece 25 and the right corner piece 26, so that the switching power supply pack 7 can be assembled and maintained conveniently. The power module 8 is fixed to the cabinet 4. The front-stage power amplifier 12 is connected with the power divider 9. Four universal brake trundles 27 are arranged at the bottom of the cabinet 4, have the functions of vibration reduction and braking, and can enable the test device to be conveniently moved and fixed, thereby realizing multi-station sharing.
The cabinet 4 in the testing device adopts a vertical cabinet type structural design as a loading platform for various electronic devices, and the appearance is high and straight. The framework of the cabinet 4 is formed by welding after a Q195 thin steel plate with the thickness of 1mm is bent into an opposite beam, so that the structure is compact, firm and light. The testing device is complex in structure, the testing device is divided into three areas, namely an upper area, a lower left area and a lower right area according to the principle of concentration, unification and compactness, electronic devices are relatively and intensively arranged in the three specific areas, the use of cables and hard feed lines is reduced, the signal transmission efficiency is improved, the reliability of a system is improved, and the assembly, the overhaul and the use are convenient. The test device takes necessary ventilation, heat dissipation, buffering and vibration reduction measures, takes overall consideration into consideration, comprehensively selects the best, achieves the purposes of tidy, unified, coordinated and reasonable overall layout, is firm in structure and smooth in circuit, is convenient for test personnel to operate, is not easy to cause fatigue of the test personnel, and realizes efficient test work.
The operation process of the test device provided by the invention comprises the following steps: firstly, the universal brake caster 27 of the testing device is braked and fixed, then a power input cable is connected to a power input port of the control interface panel 3, then a radio frequency signal source, a tested amplitude limiting field amplifier plug-in and a power measuring instrument are respectively connected to an input port, an output port and a test port of the control interface panel 3, finally a main power switch and a fan switch on the control interface panel 3 are turned on, and the testing device is powered on and started. The power measuring instrument can measure the power input to the tested amplitude limiting field amplifier plug-in unit in real time and judge whether the peak power and the average power of the tested amplitude limiting field amplifier plug-in unit meet the requirements of design indexes. The control interface panel of the testing device of the present invention is shown in fig. 4.
In the aspect of the telecommunication design of the test device, the test device is systematically designed, and the radio-frequency signal primary power amplification → power distribution to a plurality of power assemblies → power assembly secondary amplification → power synthesis is adopted to output high power. The concrete realization process of the test device is as follows: the pulse radio frequency signal transmitted by the radio frequency signal source is preliminarily amplified by a front-stage power amplifier 12 through an input port of the control interface panel 3, each path of radio frequency signal is transmitted to each power component 1 after being distributed by the power distributor 9, and the radio frequency signal is further amplified and synthesized by the power synthesizer 10. The power combiner 10 is connected with a first adapter 16 and is sent to a three-terminal circulator 11, one end of the three-terminal circulator is connected with a high-power load 5 through a fourth adapter 19, and the other end of the three-terminal circulator is connected with a directional coupler 13 through a second adapter 17. The isolation port of the directional coupler 13 is connected with a coupling load 14, the coupling port of the directional coupler 13 is connected with an attenuator 15 and then is switched to the test port of the control interface panel 3 for measuring the power output by the test device, the output port of the directional coupler 13 is switched to the output port of the control interface panel 3, and the output high power is used for the anti-burning test of the tested amplitude limiting field plug-in unit. The alternating current power supply of the test device is 380V input, after an anti-creeping air switch is connected through a power supply input port on the control interface panel 3, one path supplies power to the switch power supply group 7, and the power supply component 1 and the preceding stage power amplifier 12 are supplied after AC/DC conversion; a route 380V is divided into 220V to supply power to the power module 8, and the power is supplied to the front-stage power amplifier 12 after AC/DC conversion; one route is connected with the leakage-proof air switch in 220V by 380V and then supplies power to the centrifugal fan 21 and the axial flow fan 6. The anti-leakage air switch is adopted in the aspect of safety protection to realize the automatic open-circuit protection of electric leakage, all parts of the whole testing device are reliably grounded, and the safety of the testing device is greatly improved. The overall interface relationship of the test apparatus is shown in fig. 5, and the local interface relationship is shown in fig. 6 to 13.
The test method of the test device comprises the following steps: after the power synthesized by the power synthesizer 10 is sent to the directional coupler 13 through the three-terminal circulator 11, the power output by the radio frequency output port of the directional coupler 13 is used for a test of the high power burnout resistance of the clipping field amplifier card, and the coupling port of the directional coupler 13 is connected with the attenuator 15 for measuring the power output by the test device, as shown in fig. 5. The test method can accurately acquire the peak power value and the average power value input to the amplitude limiting field amplifier plug-in unit, and can greatly improve the reliability of the test result obtained by the test device.
When the testing device is used, only the tested amplitude limiting field amplifier plug-in is connected to the testing wiring port, the testing device is electrified, after a signal source is input, the peak power value and the average power value input to the tested amplitude limiting field amplifier plug-in can be monitored in real time through the power measuring instrument, and the high-power burnout resistance test of the amplitude limiting field amplifier plug-in can be rapidly, safely and reliably realized, so that the working time of testers is reduced, the labor intensity of the testers is reduced, and the working efficiency of the testers is improved by more than 65%.
Claims (5)
1. A high-power test device for an amplitude limiting field amplifier plug-in comprises a cabinet, wherein the cabinet is divided into an upper area, a lower left area and a lower right area; the method is characterized in that: the upper area is provided with a hard feeder line, a three-terminal circulator, a directional coupler, a coupling load, an attenuator, a first adapter, a second adapter, a third adapter and a fourth adapter, a power combiner is connected with the first adapter through the hard feeder line, the first adapter is connected with a No. 1 input port of the three-terminal circulator, a No. 2 output end of the three-terminal circulator is connected with the second adapter, the other end of the second adapter is connected with the directional coupler, a radio frequency output port of the directional coupler is connected with the third adapter, and the third adapter is connected with a tested amplitude limiting field amplifier plug-in unit; the isolation port of the directional coupler is connected with the coupling load, the test port of the directional coupler is connected with the attenuator, and the attenuator is connected with the power test instrument; the No. 3 load end of the three-end circulator is connected with a fourth adapter, and the fourth adapter is connected with a high-power load; the left area of the lower part of the cabinet comprises a power component, a power distributor, a power synthesizer, a fan mounting rack, a centrifugal fan, a wind guide ring, a static pressure box and a guide rail; the power distributor is connected with the power component, the power component is connected with the power synthesizer, the guide rail is fixed on the cabinet, the power component is installed on the guide rail, a fan installation frame is installed on the cabinet at the rear part of the power component, and a centrifugal fan, a wind guide ring and a static pressure box are installed on the fan installation frame; the right area of the lower part of the cabinet comprises a high-power load, an axial flow fan, a switching power supply pack, a power supply module, a preceding-stage power amplifier, a left corner piece and a right corner piece, wherein the axial flow fan is arranged on the upper part of the high-power load, the switching power supply pack is fixed on the cabinet through the left corner piece and the right corner piece, the power supply module is fixed on the cabinet, and the preceding-stage power amplifier is connected with a power distributor.
2. The high-power test device for the limiting field amplifier card according to claim 1, wherein: the control interface panel is fixed at the front end of the upper area.
3. The high-power test device for the limiting field amplifier card according to claim 1, wherein: the four universal brake trundles are arranged at the bottom of the cabinet.
4. The high-power test device for the limiting field amplifier card according to claim 1, wherein: a framework of the cabinet is formed by welding after a Q195 thin steel plate with the thickness of 1mm is bent into an opposite beam.
5. A high-power test method for a limiting field amplifier card is characterized by comprising the following steps: after the power synthesized by the power synthesizer is sent to the directional coupler through the three-terminal circulator, the power output by the radio frequency output port of the directional coupler is used for a test of the high-power burnout resistance of the amplitude limiting field amplifier plug-in unit, and the coupling port of the directional coupler is connected with an attenuator and used for measuring the power output by the test device.
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| CN201910907920.4A CN110672942B (en) | 2019-09-25 | 2019-09-25 | High-power test device and test method for amplitude limiting field amplifier plug-in |
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| CN110672942B CN110672942B (en) | 2021-10-22 |
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| CN201947524U (en) * | 2011-03-24 | 2011-08-24 | 季天仁 | Large-area high-power microwave plasma annular microwave chamber and device with same |
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