CN206892223U - A kind of device testing apparatus - Google Patents
A kind of device testing apparatus Download PDFInfo
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- CN206892223U CN206892223U CN201720679381.XU CN201720679381U CN206892223U CN 206892223 U CN206892223 U CN 206892223U CN 201720679381 U CN201720679381 U CN 201720679381U CN 206892223 U CN206892223 U CN 206892223U
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Abstract
The utility model discloses a kind of device testing apparatus, it is related to testing field, the device includes：Signal input part, signal output part, input test port, output test port, the first power splitter and the first coaxial switch, input test port and output test port include at least two, signal input part is used to connect signal generator, signal output part is used to connect signal analyzer, input test port and output test port are used to connect device under test, the input connection signal input part of first power splitter, output end connection input test port, the fixing end connection signal output part of first coaxial switch, movable end connection output test port；The signal generator and signal analyzer device under test connected by the device is tested, it is not necessary to and it is artificial to carry out plug port switching, testing process is simplified, improves testing efficiency, while automaticity is higher, the reliability of test is also higher.
Description
Technical field
Testing field is the utility model is related to, especially a kind of device testing apparatus.
Background technology
In the production and maintenance process of device, it can all be related to the test process to device, mainly device under test
Receiving port and emission port tested.
When the receiving port of device under test is tested, typically by the receiving port connection signal hair of device under test
Raw device, test signal to device under test, device under test is exported by signal generator the signal received is calculated by house software
Intensity, test result is obtained by the intensity for comparing the signal intensity being calculated and the test signal of input.To device to be measured
When the emission port of part is tested, the emission port of device under test is typically connected into power meter, device under test passes through transmitting
Port transmission signal, the intensity of signal received by power meter detection, compare signal intensity that power meter detects with treating
The intensity for surveying the signal of device transmitting obtains test result.Because device under test generally all includes more multiple receiving ports and transmitting
Port, when testing a device under test, it is necessary to using the above method successively to each receiving port and transmitting terminal
Mouthful tested, after a receiving port has been tested, it is necessary to tester signal generator plug is connected to manually it is next
Individual receiving port, likewise, it is necessary to which power meter plug is connected into next transmitting manually after an emission port has been tested
Port, because the quantity of port is generally more, therefore need in test process frequently to carry out plug switching, test process is numerous
Trivial and efficiency is low, while larger by man's activity, easily causes larger test error.
Utility model content
The present inventor is regarding to the issue above and technical need, it is proposed that a kind of device testing apparatus, uses the device detection
Device device under test, which carries out test, can simplify test process, improve testing efficiency, while the degree of reliability is high.
The technical solution of the utility model is as follows：
A kind of device testing apparatus, the device include：Signal input part, signal output part, input test port, output are surveyed
Port, the first power splitter and the first coaxial switch are tried, input test port includes at least two, and output test port is included at least
Two, the first power splitter includes an input and at least two output ends, and the first coaxial switch is including a fixing end and extremely
Few two movable ends；Signal input part is used to connect signal generator, and signal output part is used to connect signal analyzer, and input is surveyed
Examination port is used for the receiving port for connecting device under test, and output test port is used for the emission port for connecting device under test；First
The input connection signal input part of power splitter, each input test port connect an output end of the first power splitter respectively,
The fixing end connection signal output part of first coaxial switch, each one for exporting test port and connecting the first coaxial switch respectively
Movable end.
Its further technical scheme is that signal output part includes the first signal output part and secondary signal output end, letter
Number analyzer includes spectrum analyzer and power meter；First signal output part is used to connect spectrum analyzer, secondary signal output
Hold for connecting power meter；Then device also includes：Second power splitter, the second power splitter include an input and two outputs
End, the input of the second power splitter connect the fixing end of the first coaxial switch, the output end connection first of the second power splitter
Signal output part, another output end connection secondary signal output end.
Its further technical scheme is that the device also includes：First calibration port and the second coaxial switch, second is coaxial
Switch includes a fixing end and two movable ends, and the fixing end connection signal input part of the second coaxial switch, second coaxially opens
First movable end closed connects the input of the first power splitter, the calibration of second movable end connection first of the second coaxial switch
Port.
Its further technical scheme is that the device also includes：3rd coaxial switch, the 3rd coaxial switch include one admittedly
Fixed end and two movable ends, the fixing end of the 3rd coaxial switch connect second movable end of the second coaxial switch, and the 3rd is coaxial
One movable end of switch connects the first calibration port, and another movable end of the 3rd coaxial switch connects the first coaxial switch
One movable end.
Its further technical scheme is that the device also includes：Second calibration port and probe port, probe port are used for
Connecting detection probe, the second calibration port and probe port connect a movable end of the first coaxial switch respectively.
Advantageous effects of the present utility model are：
The device testing apparatus that the application provides, signal generator, signal analyzer and device under test, signal are connected respectively
The first power splitter that the test signal of generator output is passed through in the test device, which is divided into some drive test trial signals and exported respectively, to be treated
Multiple receiving ports of device are surveyed, multiple receiving ports can be tested simultaneously without carrying out artificial plug switching,
The signal that device under test is launched by emission port simultaneously passes through the first coaxial switch input signal analyzer, is coaxially opened when first
When concern shifts to different movable ends, different emission ports can be tested, plug switch terminal is carried out without artificial
Mouthful, testing process is simplified, improves testing efficiency, while automaticity is higher, the reliability of test is also higher.
Brief description of the drawings
Fig. 1 is the circuit diagram of device testing apparatus of the present utility model.
Embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
Fig. 1 is refer to, it illustrates a kind of circuit diagram of device testing apparatus, the device disclosed in the utility model to be used for
Device under test DUT is tested, and device under test DUT includes several emission ports and receiving port, if Fig. 1 is with device under test
DUT includes 4 receiving ports (being respectively RX1, RX2, RX3 and RX4) and 2 emission ports (being respectively TX1 and TX2) are
Example.The device testing apparatus includes：Signal input part Sin, signal output part Sout, input test port RX, output test lead
Mouth TX, the first power splitter DIV1 and the first coaxial switch DP1, signal input part Sin are used to connect signal generator, signal output
End Sout is used to connect signal analyzer.First power splitter DIV1 includes an input and at least two output ends, for inciting somebody to action
If the signal received by input is divided into main line, equal or unequal signal exports from each output end, and Fig. 1 is with first
Exemplified by power splitter DIV1 includes 4 output ends, the first power splitter used herein is Narda 4373-4 power splitters, the work(
Divide device that the signal received by input is divided into the equal signal output in 4 tunnels to 4 output ends, the insertion of the power splitter to damage
Consume for 0.7dB.First coaxial switch DP1 includes a fixing end and at least two movable ends, and Fig. 1 is with the first coaxial switch DP1
Exemplified by 6 movable ends, the first coaxial switch DP1 used herein is Radiall R574413610 coaxial switches.
Input test port RX includes at least two, and input test port RX is used for the receiving port RX for connecting device under test DUT, input
Test port RX quantity less than or equal to the first power splitter DIV1 output end quantity, its quantity generally with the first power splitter
The quantity of DIV1 output end is equal, and the quantity generally with device under test DUT receiving port RX matches, if Fig. 1 is with defeated
Entering test port RX includes (being respectively RX1, RX2, RX3 and RX4) exemplified by 4, and each input test port RX receives with each
Port RX connects one to one.Exporting test port TX includes at least two, and output test port TX is used to connect device under test
The quantity of DUT emission port TX, output test port TX movable end of the quantity less than or equal to the first coaxial switch DP1, and
Quantity generally with device under test DUT emission port TX matches, as Fig. 1 with export test port TX include two (respectively
For TX1 and TX2) exemplified by, each test port TX and each emission port TX that exports connects one to one.
First power splitter DIV1 input connection signal input part Sin, each input test port RX connect the respectively
An one power splitter DIV1 output end, optionally, each input test port RX connect the first power splitter by a resistance
A DIV1 output end, as Fig. 1 shows that input test port RX1-RX4 is sequentially connected the first power splitter DIV1 1-4
Port.Optionally, as shown in figure 1, the first power splitter DIV1 input is not to be directly connected to signal input part Sin, but
One fixing end and two activities are included by the second coaxial switch DP2 connection signal input parts Sin, the second coaxial switch DP2
End, the second coaxial switch DP2 used herein are Radiall R570413000 coaxial switches, the second coaxial switch DP2
Fixing end connection signal input part Sin, the second coaxial switch DP2 first movable end NC the first power splitters of connection DIV1
Input.Optionally, the device also includes the 3rd coaxial switch DP3, and the 3rd coaxial switch DP3 includes a fixing end and two
Movable end, the 3rd coaxial switch DP3 used herein are Radiall R570413000 coaxial switches, the second coaxial switch
DP2 second coaxial switch DP3 of movable end NO connections the 3rd fixing end, the 3rd coaxial switch DP3 first movable end
NC the first calibration ports of connection T1, the first calibration port T1 are for connecting power meter, the 3rd coaxial switch DP3 second activity
NO the first coaxial switches of a connection DP1 movable end is held, such as 1 second movable end for showing the 3rd coaxial switch DP3
NO the first coaxial switches of connection DP1 the 5th port.
First coaxial switch DP1 fixing end connection signal output part Sout, each exports test port TX and connects respectively
A first coaxial switch DP1 movable end, optionally, each output test port TX are coaxial by a resistance connection first
A DP1 movable end is switched, as Fig. 1 shows that output test port TX1 and TX2 connect the first coaxial switch DP1 respectively
1st port and the 2nd port.Optionally, signal output part Sout includes the first signal output part Sout1 and secondary signal output end
Sout2, signal analyzer include spectrum analyzer and power meter, and the first signal output part Sout1 is used to connect spectrum analyzer,
Secondary signal output end Sout2 is used to connect power meter.Then the device also includes：Second power splitter DIV2, the second power splitter
DIV2 includes an input and two output ends, and the second power splitter DIV2 is used to the signal received by input being divided into
The equal or unequal signal in 2 tunnels, and exported by two output ends, the second power splitter DIV2 input connection first is coaxial
DP1 fixing end is switched, an output end of the second power splitter connects the first signal output part Sout1, and another output end connects
Meet secondary signal output end Sout2.The second power splitter DIV2 in the application is Narda 4373-2 power splitters, the power splitter
Insertion loss is 0.3dB, and it is defeated to two signals that the signal that the power splitter receives input is divided into the equal signal output in 2 tunnels
Go out end, then the signal intensity of output to spectrum analyzer is equal with the signal intensity of output to power meter, and power meter measurement obtains
Signal intensity be the signal that spectrum analyzer receives intensity.
Optionally, the device also includes：Second calibration port T2 and probe port P, the second calibration port T2 are used to connect
Signal generator, probe port P are used for connecting detection probe, and it is same that the second calibration port T2 and probe port P connect first respectively
Axle switchs a DP1 movable end, and optionally, the second calibration port T2 and probe port P connect the by a resistance respectively
An one coaxial switch DP1 movable end, as Fig. 1 shows second calibration port T2 the first coaxial switches of connection DP1 the 4th end
Mouthful, probe port P the first coaxial switches of connection DP1 the 3rd port, in this application, the first coaxial switch DP1 the 6th port
It is empty.
The operation principle of the device testing apparatus is：
The signal input part Sin connection signal generators of the device, the first signal output part Sout1 connection spectrum analyses
Instrument, secondary signal output end Sout2 connection power meters, 4 input test port RX connect device under test DUT respectively 4 connect
Receiving end mouth, 2 output test port TX connect device under test DUT 2 emission ports respectively.Control the second coaxial switch DP2
The first movable end NC is switched to, the test signal of signal generator input inputs the first power splitter by the second coaxial switch DP2
DIV1, through the first power splitter, DIV1 points are inputted to the 4 of device under test DUT for 4 drive test trial signals by 4 input test port RX
Individual receiving port, device under test DUT are calculated the signal intensity that each receiving port receives by house software, connect for each
Receiving end mouth, the receiving terminal that the signal intensity for the test signal all the way for inputting the receiving port and device under test DUT are calculated
The signal intensity for the signal that mouth receives is compared to obtain the test result to each receiving port, if the signal being calculated
In error range, then test passes through error between intensity and the signal intensity of test signal, otherwise tests not by error
Scope is preset value.
For each emission port, the first coaxial switch DP1 of control is switched to movable end corresponding with the emission port,
That is, the movable end that the output test port of emission port connection is connected, such as in Fig. 1, it is corresponding with emission port TX1 living
Moved end is the 1st port, by power meter detection signal intensity, by the signal intensity and power meter of the signal of device under test output
The signal intensity detected relatively obtains the test result to emission port, if signal intensity and device under test that detection obtains are defeated
In error range, then test passes through the signal intensity gone out, otherwise tests not by the way that error range is preset value.
Further, since the device has Line Attenuation, test can be caused error to be present, can be by the second coaxial switch DP2
It is switched to the second end NO, the 3rd coaxial switch DP3 is switched to first end NC, the test signal of signal generator transmitting is by the
Two coaxial switch DP2 and the 3rd coaxial switch DP3 are exported to the first calibration port T1, make the first calibration port T1 be connected to power
Meter, by the signal intensity that power meter detects compared with the signal intensity for the test signal that signal generator is launched, obtains RX chains
The decay on road, in the receiving port test of device under test, it is necessary to decay with reference to the RX links.By the second coaxial switch
DP2 is switched to the second end NO, the 3rd coaxial switch DP3 is switched to the second end NO, the first coaxial switch DP1 is switched into the 5th
Port, the test signal of signal generator transmitting is by the second coaxial switch DP2, the 3rd coaxial switch DP3, the first coaxial switch
DP1 and the second power splitter DIV2 are exported to the first signal output part Sout1 and secondary signal output end Sout2, and power meter is examined
The signal intensity measured obtains the decay of whole link compared with the signal intensity for the test signal that signal generator is launched, knot
Close the decay for stating the RX links for determining to obtain, it may be determined that the decay of TX links, tested in the emission port of device under test
When, it is necessary to decay with reference to the TX links.Or can be coaxial by first by the second calibration port T2 connection signal generators
The port of DP1 connections the 4th is switched, test signal is launched by the signal generator, the test signal passes through the first coaxial switch DP1
Export to two signal output parts with the second power splitter DIV2, detected by the power meter of secondary signal output end Sout2 connections
Signal intensity, the signal intensity that prize power meter detects obtain compared with the signal intensity for the test signal that signal generator is launched
To the decay of TX links.
Above-described is only preferred embodiment of the present utility model, and the utility model is not limited to above example.Can
To understand, what those skilled in the art directly exported or associated on the premise of spirit of the present utility model and design is not departed from
Oher improvements and changes, it is considered as being included within the scope of protection of the utility model.
Claims (5)
1. a kind of device testing apparatus, it is characterised in that described device includes：Signal input part, signal output part, input test
Port, output test port, the first power splitter and the first coaxial switch, the input test port include at least two, described
Exporting test port includes at least two, and first power splitter includes an input and at least two output ends, and described the
One coaxial switch includes a fixing end and at least two movable ends；The signal input part is used to connect signal generator, institute
State signal output part to be used to connect signal analyzer, the input test port is used for the receiving port for connecting device under test, institute
State the emission port that output test port is used to connect the device under test；The input of first power splitter connects the letter
Number input, each input test port connect an output end of first power splitter respectively, and described first is coaxial
The fixing end of switch connects the signal output part, and each output test port connects first coaxial switch respectively
One movable end.
2. device according to claim 1, it is characterised in that the signal output part includes the first signal output part and the
Binary signal output end, the signal analyzer include spectrum analyzer and power meter；First signal output part is used to connect
The spectrum analyzer, the secondary signal output end are used to connect the power meter；Then described device also includes：Second work(point
Device, second power splitter include an input and two output ends, the input connection of second power splitter described the
The fixing end of one coaxial switch, an output end of second power splitter connect first signal output part, and another is defeated
Go out end and connect the secondary signal output end.
3. device according to claim 1 or 2, it is characterised in that described device also includes：First calibration port and second
Coaxial switch, second coaxial switch include a fixing end and two movable ends, the fixing end of second coaxial switch
The signal input part is connected, first movable end of second coaxial switch connects the input of first power splitter,
Second movable end of second coaxial switch connects first calibration port.
4. device according to claim 3, it is characterised in that described device also includes：3rd coaxial switch, the described 3rd
Coaxial switch includes a fixing end and two movable ends, and the fixing end connection described second of the 3rd coaxial switch is coaxially opened
Second movable end closed, a movable end of the 3rd coaxial switch connect first calibration port, and the described 3rd is same
Another movable end of axle switch connects a movable end of first coaxial switch.
5. device according to claim 1 or 2, it is characterised in that described device also includes：Second calibration port and probe
Port, the probe port are used for connecting detection probe, and second calibration port and the probe port connect described respectively
One movable end of the first coaxial switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720679381.XU CN206892223U (en) | 2017-06-12 | 2017-06-12 | A kind of device testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720679381.XU CN206892223U (en) | 2017-06-12 | 2017-06-12 | A kind of device testing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206892223U true CN206892223U (en) | 2018-01-16 |
Family
ID=61318272
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720679381.XU Expired - Fee Related CN206892223U (en) | 2017-06-12 | 2017-06-12 | A kind of device testing apparatus |
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| CN (1) | CN206892223U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113484735A (en) * | 2021-07-30 | 2021-10-08 | 锐石创芯（深圳）科技有限公司 | Chip test gating module and chip test system |
-
2017
- 2017-06-12 CN CN201720679381.XU patent/CN206892223U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113484735A (en) * | 2021-07-30 | 2021-10-08 | 锐石创芯（深圳）科技有限公司 | Chip test gating module and chip test system |
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| Date | Code | Title | Description |
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| 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: 20180116 Termination date: 20190612 |