CN105929279B - Index testing device and method are isolated between a kind of Multi-channel microwave receiving unit road - Google Patents
Index testing device and method are isolated between a kind of Multi-channel microwave receiving unit road Download PDFInfo
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- CN105929279B CN105929279B CN201610322712.4A CN201610322712A CN105929279B CN 105929279 B CN105929279 B CN 105929279B CN 201610322712 A CN201610322712 A CN 201610322712A CN 105929279 B CN105929279 B CN 105929279B
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- 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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Abstract
Include exciting signal source and power detection module the invention discloses index testing device and method, the device are isolated between a kind of Multi-channel microwave receiving unit road, exciting signal source passes through first switch network connection to the input terminal of multichannel microwave receiving component；Power detection module passes through second switch network connection to the output end of multichannel microwave receiving component；First switch network and second switch network are connected with controller, when index is isolated between testing Multi-channel microwave receiving unit road, the signal of controller output control first switch network and second switch network switching, so that power detection module test out a channel of Multi-channel microwave receiving unit output power value and other channels relative to the channel leakage output power value and subtracted each other, obtain that index is isolated between the channel and the road in other channels.
Description
Technical field
The invention belongs to index is isolated between testing for electrical equipment field more particularly to a kind of Multi-channel microwave receiving unit road
Test device and method.
Background technology
When index test being isolated between Multi-channel microwave receiving unit road, one of channel is often tested, handle is required for
Other channels load on first connecting, and avoid other channels because impedance mismatching impacts TCH test channel, TCH test channel is caused to refer to
Mark existing exception.Therefore, between Multi-channel microwave receiving unit road when isolation test, process is more complicated and cumbersome, needs to adopt
With a kind of new test method and device.
Index test is isolated between the road generally using manual test mode to carry out Multi-channel microwave receiving unit at present,
TCH test channel connecting test instrument connects load in other input channels and output channel.Often one channel of test is required for more
Secondary adjustment loads interface channel, also to change test equipment interface channel.
For index test is isolated between the road in Multi-channel microwave receiving unit channel 1, need first to connect pumping signal
It is connected to input channel 1, power termination is connected in other channels, spectrum analyzer is connected in corresponding output channel 1, opens excitation
Signal tests the output power value of output channel 1.Input signal is first closed, but keeps pumping signal to input channel 1
Connect it is constant, then by output channel 1 connect high power load, spectrum analyzer is consecutively connected to other output channels, is obtained
The leakage output power value in other channels, but non-TCH test channel still needs connection to load.By the output power value in channel 1 and its
The leakage output power value in its channel is subtracted each other, and obtains that index is isolated between output channel 1 and the road in other channels.
Change pumping signal successively to other input channels, test mode obtains as the test process in above-mentioned channel 1
Index is isolated between this channel and the road in other channels.
Existing test method is generally tested using manual test mode, is often tested a channel and is required for repeatedly adjusting
Interface channel is loaded, while more secondary change test equipment interface channel, test speed are very slow.Repeatedly during connection,
Human factor may also influence test result.
Invention content
In order to solve the disadvantage that isolation index is surveyed between the prior art, the present invention provide a kind of Multi-channel microwave receiving unit road
Try device and method.The test device of the present invention is carried out by controller to control first switch network and second switch network
Switching so that exciting signal source, power detection module and input load and output loading can be connected automatically to corresponding survey
It pings, it is primary to connect, it completes that index test is isolated between the road in all channels of Multi-channel microwave receiving unit.This method is not required to
It to be manually attached, test speed is faster, easy to operate.
To achieve the above object, the present invention uses following technical scheme：
Index testing device, including exciting signal source and power detection mould are isolated between a kind of Multi-channel microwave receiving unit road
Block, the exciting signal source pass through first switch network connection to the input terminal of multichannel microwave receiving component；The power inspection
It surveys module and passes through second switch network connection to the output end of multichannel microwave receiving component；
The input terminal in each channel of Multi-channel microwave receiving unit is also negative by first switch network and corresponding input
It carries and is connected；
The output end in each channel of Multi-channel microwave receiving unit is also negative by second switch network and corresponding output
It carries and is connected；
The first switch network and second switch network are connected with controller, in test Multi-channel microwave receiving unit
When index being isolated between road, the signal of controller output control the first switch network and second switch network switching so that work(
Rate detection module test out a channel of Multi-channel microwave receiving unit output power value and other channels relative to this
The leakage output power value in channel；The power detection module is by the output power value in detect channel and other channels
Leakage output power value relative to the channel subtracts each other, and obtains that index is isolated between the channel and the road in other channels.
The test device of the present invention is switched over by controller to control first switch network and second switch network,
Exciting signal source, power detection module and input load and output loading is enable to be connected automatically to corresponding TCH test channel
On, it is primary to connect, it completes that index test is isolated between the road in all channels of Multi-channel microwave receiving unit.In test, will lead to more
The input channel of road microwave receiving component is connected on the output channel interface of corresponding switching network, Multi-channel microwave receiving unit
Output channel is connected in the input channel of corresponding switching network, during the test, haves no need to change interface channel.
The first switch network includes several input switching switches, the quantity and multichannel of the input switching switch
The number of channels of microwave receiving component is identical.
The output end of each input switching switch is connected to the input terminal of the respective channel of Multi-channel microwave receiving unit, often
The first input end of a input switching switch is connected with corresponding input load, the second input terminal of each input switching switch
It is connected with exciting signal source by the first switching switch.
The present invention is composed in series by the way that first switch network is switched switch by several input switching switches and first, this
Sample makes first switch network under the control action of controller, being capable of the switching control between exciting signal source and input load
It is more accurate.
The second switch network includes several output dip switch, the quantity and multichannel of the output dip switch
The number of channels of microwave receiving component is identical.
The input terminal of each output dip switch is connected to the output end of the respective channel of Multi-channel microwave receiving unit, often
First output end of a output dip switch is connected with corresponding output loading, the second output terminal of each output dip switch
It is connected with power detection module by the second switching switch.
The present invention is composed in series by the way that second switch network is switched switch by several output dip switch and second, this
Sample makes second switch network under the control action of controller, can switch control between power detection module and output loading
System is more accurate.
The test method of index testing device, including following step are isolated between a kind of road based on Multi-channel microwave receiving unit
Suddenly：
Step (1)：Multi-channel microwave receiving unit is connected between Multi-channel microwave receiving unit road, index test is isolated
In device；
Step (2)：One channel of selected Multi-channel microwave receiving unit, controller output control first switch network and
The signal of second switch network switching is tested out the output work in the channel of Multi-channel microwave receiving unit by power detection module
The leakage output power value of rate value and other channels relative to the channel, and by the output power value in the channel and other channels
Leakage output power value relative to the channel subtracts each other, and obtains that index is isolated between the channel and the road in other channels；
Step (3)：Step (2) is repeated, tests out and index is isolated between the road in each channel of Multi-channel microwave receiving unit.
During carrying out the output power value in a channel of test Multi-channel microwave receiving unit in step (2),
The signal of controller output control first switch network and second switch network switching so that the input terminal in the channel is connected to sharp
Signal source is encouraged, the output end in the channel is connected to power detection module, the input in other channels of Multi-channel microwave receiving unit
End is connected with corresponding input load, and the performance number that such exciting signal source is exported by first passage is then by power detection
Module detection obtains.
In step (2), behind a channel for selecting Multi-channel microwave receiving unit, Multi-channel microwave reception group is tested out
The output power value in the channel of part and then carry out the leakage output power value for testing other channels relative to the channel.
Index test is isolated between the road in the other channels of Multi-channel microwave receiving unit in this way, again without the company of manually changing
Connect road, it is only necessary under the switching of switching network, need not be manually attached in test process, test speed faster, is grasped
Make simply, to reduce the influence of manual operation factor.Meanwhile each channel is relatively independent, test signal channel and load
Channel will not influence each other.
Behind one channel of selected Multi-channel microwave receiving unit, carry out testing leakage of other channels relative to the channel
During output power value, keep the on off state of first switch network constant, controller exports second switch network switching
Signal, successively so that other channels be connected respectively with power detection module, other channels are detected by power detection module
Reveal output power value.
When a channel of Multi-channel microwave receiving unit is connected with power module, other channels are exported with corresponding
Load is connected.
Beneficial effects of the present invention are：
(1) test device of the invention is cut by controller to control first switch network and second switch network
It changes so that exciting signal source, power detection module and input load and output loading can be connected automatically to corresponding test
It is primary to connect on channel, it completes that index test is isolated between the road in all channels of Multi-channel microwave receiving unit.It, will in test
The input channel of Multi-channel microwave receiving unit is connected on the output channel interface of corresponding switching network, and Multi-channel microwave receives
Component output channel is connected in the input channel of corresponding switching network, during the test, haves no need to change interface channel.
(2) when index test is isolated in the present invention between the road in the other channels of Multi-channel microwave receiving unit, again without
Manually change interface channel, it is only necessary to switch switching network, you can complete that index test is isolated between the road in other channels.It tested
It need not be manually attached in journey, test speed is faster, easy to operate, reduces the influence of manual operation factor, improves
Testing efficiency.Meanwhile each load channel of switching network is individually using a load, the load with other channels carries out
Isolation can eliminate influencing each other between TCH test channel, and test signal channel and load channel will not influence each other.
Description of the drawings
Fig. 1 be the present invention Multi-channel microwave receiving unit road between be isolated index testing device embodiment schematic diagram.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
The present invention provides index testing device and method are isolated between a kind of Multi-channel microwave receiving unit road, for realizing
The automatic test of index is isolated between Multi-channel microwave receiving unit road.
The structural schematic diagram of index testing device is isolated between the Multi-channel microwave receiving unit road of the present invention.
Index testing device, including exciting signal source and power detection mould are isolated between the Multi-channel microwave receiving unit road
Block, the exciting signal source pass through first switch network connection to the input terminal of multichannel microwave receiving component；The power inspection
It surveys module and passes through second switch network connection to the output end of multichannel microwave receiving component；
The input terminal in each channel of Multi-channel microwave receiving unit is also negative by first switch network and corresponding input
It carries and is connected；
The output end in each channel of Multi-channel microwave receiving unit is also negative by second switch network and corresponding output
It carries and is connected；
First switch network and second switch network are connected with controller, between test Multi-channel microwave receiving unit road
When index is isolated, the signal of controller output control the first switch network and second switch network switching so that power is examined
Survey module testing go out Multi-channel microwave receiving unit a channel output power value and other channels relative to the channel
Leakage output power value；The power detection module is opposite with other channels by the output power value in detect channel
Leakage output power value in the channel subtracts each other, and obtains that index is isolated between the channel and the road in other channels.
The test device of the present invention is switched over by controller to control first switch network and second switch network,
Exciting signal source, power detection module and input load and output loading is enable to be connected automatically to corresponding TCH test channel
On, it is primary to connect, it completes that index test is isolated between the road in all channels of Multi-channel microwave receiving unit.In test, will lead to more
The input channel of road microwave receiving component is connected on the output channel interface of corresponding switching network, Multi-channel microwave receiving unit
Output channel is connected in the input channel of corresponding switching network, during the test, haves no need to change interface channel.
Specifically, having structure form may be used in first switch network of the invention：
First switch network includes several input switching switches, the quantity and Multi-channel microwave of the input switching switch
The number of channels of receiving unit is identical.
The output end of each input switching switch is connected to the input terminal of the respective channel of Multi-channel microwave receiving unit, often
The first input end of a input switching switch is connected with corresponding input load, the second input terminal of each input switching switch
It is connected with exciting signal source by the first switching switch.
The present invention is composed in series by the way that first switch network is switched switch by several input switching switches and first, this
Sample makes first switch network under the control action of controller, being capable of the switching control between exciting signal source and input load
It is more accurate.
The second switch network includes several output dip switch, the quantity and multichannel of the output dip switch
The number of channels of microwave receiving component is identical.
The input terminal of each output dip switch is connected to the output end of the respective channel of Multi-channel microwave receiving unit, often
First output end of a output dip switch is connected with corresponding output loading, the second output terminal of each output dip switch
It is connected with power detection module by the second switching switch.
The present invention is composed in series by the way that second switch network is switched switch by several output dip switch and second, this
Sample makes second switch network under the control action of controller, can switch control between power detection module and output loading
System is more accurate.
As shown in Figure 1, one embodiment of index testing device is isolated between the Multi-channel microwave receiving unit road of the present invention.
By taking 8 channel microwave receiving components as an example：Wherein, power detection module selects spectrum analyzer.
In Fig. 1, exciting signal source is respectively connected to switch S2 and switch S3, four outputs of switch S2 by switch S1
End is respectively connected to the second input terminal of switch S4, switch S5, switch S6 and switch S7；
Switch S4, switch S5, switch S6 and switch S7 first input end respectively with load 1, load 2, load 3 and load
4 are connected；Switch S4, switch S5, switch S6 and switch S7 output end be respectively connected to 8 channel microwave receiving components 1-4 it is logical
The input terminal in road.
Four output ends of switch S3 are respectively connected to the second input of switch S8, switch S9, switch S10 and switch S11
End；
Switch S8, switch S9, switch S10 and switch S11 first input end respectively with load 5, load 6, load 7 and negative
8 are carried to be connected；Switch S8, switch S9, switch S10 and switch S11 output end be respectively connected to the 5- of 8 channel microwave receiving components
The input terminal in 8 channels.
Wherein, switch S1, switch S4, switch S5, switch S6, switch S7 and switch S8, switch S9, switch S10 and switch
S11 is single-pole double-throw switch (SPDT).Switch S2 and switch S3 is four throw switch of hilted broadsword.
In Fig. 1, switch S4, switch S5, switch S6, switch S7 and switch S8, switch S9, switch S10 and switch S11
Output end is labeled as common end C.Switch S1, switch S2 and switch S3 input terminals are labeled as common end C.
The output end in the channels 1-8 of 8 channel microwave receiving components respectively with switch S12, switch S13, switch S14, switch
S15, switch S16, switch S17, switch S18 are connected with the input terminal of switch S19；
The of switch S12, switch S13, switch S14, switch S15, switch S16, switch S17, switch S18 and switch S19
One output end is connected with load 9, load 10, load 11, load 12, load 13, load 14, load 15 and load 16 respectively.
Switch S12, switch S13, switch S14 and switch S15 second output terminal distinguish respectively with the input terminal of switch S20
It is connected；Switch S16, switch S17, switch S18 and switch S19 second output terminal distinguish phase with the input terminal of switch S21 respectively
Even；The output end of switch S20 and switch S21 is connected to spectrum analyzer by switch S22.
Wherein, switch S12, switch S13, switch S14, switch S15, switch S16, switch S17, switch S18, switch S19
It is single-pole double-throw switch (SPDT) with switch S22.Switch S20 and switch S21 is four throw switch of hilted broadsword.
In Fig. 1, switch S12, switch S13, switch S14, switch S15, switch S16, switch S17, switch S18 and switch
The input terminal of S19 is labeled as common end C.Switch S20, switch S21 and switch S22 output ends are labeled as common end C.
Switch S1- switches S22 in the present embodiment is controlled by controller.
In test, the output channel that the input channel of Multi-channel microwave receiving unit is connected to corresponding switching network connects
On mouth, Multi-channel microwave receiving unit output channel is connected in the input channel of corresponding switching network,
Based on the test method that index testing device is isolated between Multi-channel microwave receiving unit road, include the following steps：
Step (1)：Multi-channel microwave receiving unit is connected between Multi-channel microwave receiving unit road, index test is isolated
In device；
Step (2)：One channel of selected Multi-channel microwave receiving unit, controller output control first switch network and
The signal of second switch network switching is tested out the output work in the channel of Multi-channel microwave receiving unit by power detection module
The leakage output power value of rate value and other channels relative to the channel, and by the output power value in the channel and other channels
Leakage output power value relative to the channel subtracts each other, and obtains that index is isolated between the channel and the road in other channels；
Step (3)：Step (2) is repeated, tests out and index is isolated between the road in each channel of Multi-channel microwave receiving unit.
During carrying out the output power value in a channel of test Multi-channel microwave receiving unit in step (2),
The signal of controller output control first switch network and second switch network switching so that the input terminal in the channel is connected to sharp
Signal source is encouraged, the output end in the channel is connected to power detection module, the input in other channels of Multi-channel microwave receiving unit
End is connected with corresponding input load, and the performance number that such exciting signal source is exported by first passage is then by power detection
Module detection obtains.
In step (2), behind a channel for selecting Multi-channel microwave receiving unit, Multi-channel microwave reception group is tested out
The output power value in the channel of part and then carry out the leakage output power value for testing other channels relative to the channel.
Index test is isolated between the road in the other channels of Multi-channel microwave receiving unit in this way, again without the company of manually changing
Connect road, it is only necessary under the switching of switching network, need not be manually attached in test process, test speed faster, is grasped
Make simply, to reduce the influence of manual operation factor.Meanwhile each channel is relatively independent, test signal channel and load
Channel will not influence each other.
Behind one channel of selected Multi-channel microwave receiving unit, carry out testing leakage of other channels relative to the channel
During output power value, keep the on off state of first switch network constant, controller exports second switch network switching
Signal, successively so that other channels be connected respectively with power detection module, other channels are detected by power detection module
Reveal output power value.
When a channel of Multi-channel microwave receiving unit is connected with power module, other channels are exported with corresponding
Load is connected.
The specific implementation process of test device by taking Fig. 1 as an example, corresponding test method is：
In test, the output channel that the input channel of Multi-channel microwave receiving unit is connected to corresponding switching network connects
On mouth, Multi-channel microwave receiving unit output channel is connected in the input channel of corresponding switching network, during the test, no
It needs to change interface channel.
In isolation test between carrying out 1 tunnel of Multi-channel microwave receiving unit channel, it is only necessary under the switching of switching network,
Input signal is connected to the common end C of switch S1, the common end C of switching switch S1 to channel 1；The channel 1 of switch S1
It is connected to the common end C of switch S2, the common end C of switching switch S2 to channel 1；The channel 1 of switch S2 is connected to switch S4's
Channel 2, the common end C of switching switch S4 to channel 2；The common end C of switch S4 is finally connected to Multi-channel microwave reception group
The channel 1 (IN1) of part, pumping signal can be loaded into the input channel 1 of Multi-channel microwave receiving unit.1~8 point of load
It is not connected on the channel 1 of switch S4~S11, switches respectively on the common end C to the channel 1 of its switch of switch S5~S11, open
The common end C for closing S5~S11 is connected respectively in the input channel 2~8 (IN2~IN8) of Multi-channel microwave receiving unit.
The output channel 1 (OUT1) of Multi-channel microwave receiving unit is connected to the common end C of switch S12, switching switch S12
Common end C to channel 2；The channel 2 of switch S12 is connected to the channel 1 of switch S20, and the common end C of switching switch S20 is to leading to
Road 1；The common end C of switch S20 is connected to the channel 1 of switch S22, the common end C of switching switch S22 to channel 1；It will finally open
The common end C for closing S22 is connected to spectrum analyzer input port.Load 9~16 is connected respectively to the channel 1 of switch S12~S19
On, switch respectively on the common end C to the channel 1 of its switch of switch S13~S19, the common end C of switch S13~S19 connects respectively
It is connected in the output channel 2~8 (OUT2~OUT8) of Multi-channel microwave receiving unit.In this way, spectrum analyzer is mostly logical in test
When the output power in road microwave receiving component channel 1, there will be no leakage signal influences for the input and output port in other channels
To its TCH test channel 1.
When testing the leakage function signal rate of output channel 2, first switches the common end C of switch S12 to channel 1, will lead to more
The output channel 1 (OUT1) of road microwave receiving component is connected in load 9；Switch the common end C of switch S13 again to channel 2, incites somebody to action
The output channel 2 of Multi-channel microwave receiving unit is connected in the test port of test equipment spectrum analyzer, other switches
Channel remains unchanged, and tests the leakage output power value of output channel 2.Equally, in test Multi-channel microwave receiving unit output
When the leakage output power value in channel 3, need first the output channel 2 by Multi-channel microwave receiving unit pass through switch switch S13
Onto 10 channels of load, then the output channel 3 of Multi-channel microwave receiving unit is connected to the survey of test equipment spectrum analyzer
It tries on port, the channel of other switching networks remains unchanged, and tests the leakage output power value of output channel 3.Carry out it successively
Its channel is tested relative to the leakage output power value in channel 1, to realize the road interval in Multi-channel microwave receiving unit channel 1
From index test.
Index test is isolated between the road in the other channels of Multi-channel microwave receiving unit in the test method using the present invention,
Again without manually changing interface channel, it is only necessary to which under the switching of switching network, the test method according to channel 1 is led to
Road switches and test.It need not be manually attached in test process, test speed is faster, easy to operate, reduces to the greatest extent artificial
The influence of operation factors.Meanwhile each channel is relatively independent, test signal channel and load channel will not influence each other.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (10)
1. index testing device is isolated between road in a kind of Multi-channel microwave receiving unit, which is characterized in that including exciting signal source and
Power detection module, the exciting signal source pass through first switch network connection to the input terminal of multichannel microwave receiving component；
The power detection module passes through second switch network connection to the output end of multichannel microwave receiving component；
The input terminal in each channel of Multi-channel microwave receiving unit also passes through first switch network and corresponding input load phase
Even；
The output end in each channel of Multi-channel microwave receiving unit also passes through second switch network and corresponding output loading phase
Even；
The first switch network and second switch network are connected with controller, between test Multi-channel microwave receiving unit road
When index is isolated, the signal of controller output control the first switch network and second switch network switching so that power is examined
Survey module testing go out Multi-channel microwave receiving unit a channel output power value and other channels relative to the channel
Leakage output power value；The power detection module is opposite with other channels by the output power value in detect channel
Leakage output power value in the channel subtracts each other, and obtains that index is isolated between the channel and the road in other channels.
2. index testing device is isolated between a kind of Multi-channel microwave receiving unit road as described in claim 1, which is characterized in that
The first switch network includes several input switching switches, and the quantity of the input switching switch is received with Multi-channel microwave
The number of channels of component is identical.
3. index testing device is isolated between a kind of Multi-channel microwave receiving unit road as claimed in claim 2, which is characterized in that
The output end of each input switching switch is connected to the input terminal of the respective channel of Multi-channel microwave receiving unit, and each input is cut
It changes the first input end of switch to be connected with corresponding input load, the second input terminal of each input switching switch is by the
One switching switch is connected with exciting signal source.
4. index testing device is isolated between a kind of Multi-channel microwave receiving unit road as described in claim 1, which is characterized in that
The second switch network includes several output dip switch, and quantity and the Multi-channel microwave of the output dip switch receive
The number of channels of component is identical.
5. index testing device is isolated between a kind of Multi-channel microwave receiving unit road as claimed in claim 4, which is characterized in that
The input terminal of each output dip switch is connected to the output end of the respective channel of Multi-channel microwave receiving unit, each outputting cutting
It changes the first output end of switch to be connected with corresponding output loading, the second output terminal of each output dip switch is by the
Two switching switches are connected with power detection module.
6. index testing device is isolated between a kind of road based on Multi-channel microwave receiving unit according to any one of claims 1 to 5
Test method, which is characterized in that include the following steps：
Step (1)：Multi-channel microwave receiving unit is connected between Multi-channel microwave receiving unit road, index testing device is isolated
In；
Step (2)：One channel of selected Multi-channel microwave receiving unit, controller output control first switch network and second
The signal of switching network switching, the output power value in the channel of Multi-channel microwave receiving unit is tested out by power detection module
And leakage output power value of other channels relative to the channel, and the output power value in the channel is opposite with other channels
Leakage output power value in the channel subtracts each other, and obtains that index is isolated between the channel and the road in other channels；
Step (3)：Step (2) is repeated, tests out and index is isolated between the road in each channel of Multi-channel microwave receiving unit.
7. test method as claimed in claim 6, which is characterized in that carry out test Multi-channel microwave in step (2) and receive
During the output power value in one channel of component, controller output control first switch network and second switch network are cut
The signal changed so that the input terminal in the channel is connected to exciting signal source, and the output end in the channel is connected to power detection module,
The input terminal in other channels of Multi-channel microwave receiving unit is connected with corresponding input load, and such exciting signal source passes through
First passage and the performance number that exports then is obtained by power detection module detection.
8. test method as claimed in claim 7, which is characterized in that in step (2), select Multi-channel microwave receiving unit
A channel after, test out the output power value in the channel of Multi-channel microwave receiving unit and then carry out testing other
Leakage output power value of the channel relative to the channel.
9. test method as claimed in claim 8, which is characterized in that a channel of selected Multi-channel microwave receiving unit
Afterwards, it carries out during testing leakage output power value of other channels relative to the channel, keeps opening for first switch network
Off status is constant, controller export second switch network switching signal, successively so that other channels respectively with power detection mould
Block is connected, and the leakage output power value in other channels is detected by power detection module.
10. test method as claimed in claim 9, which is characterized in that when a channel of Multi-channel microwave receiving unit with
When power module is connected, other channels are connected with corresponding output loading.
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|---|---|---|---|---|
| CN109245836B (en) * | 2018-11-07 | 2021-07-06 | 中电科思仪科技股份有限公司 | Testing device and method for multi-channel equipment |
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