CN205986895U - Intermediate frequency receiver special test platform - Google Patents
Intermediate frequency receiver special test platform Download PDFInfo
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- CN205986895U CN205986895U CN201620877041.3U CN201620877041U CN205986895U CN 205986895 U CN205986895 U CN 205986895U CN 201620877041 U CN201620877041 U CN 201620877041U CN 205986895 U CN205986895 U CN 205986895U
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- industrial computer
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- hilted broadsword
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Abstract
The utility model discloses an intermediate frequency receiver special test platform, the testboard includes quick -witted case body, industrial computer, microwave signal source and frequency spectrograph, and this internally is equipped with that the RF switch is thrown to power, signal control circuit, hilted broadsword no. 3, RF switch and third local oscillator are thrown to hilted broadsword eight quick -witted case, industrial computer and signal control circuit intercommunication, microwave signal source throws the RF switch intercommunication with industrial computer and hilted broadsword no. 3 respectively, the RF switch intercommunication is thrown with industrial computer and hilted broadsword eight respectively to the frequency spectrograph. This testboard is thrown RF switch, hilted broadsword eight through industrial computer control microwave signal source, third local oscillator, signal control circuit, hilted broadsword no. 3 and is thrown the automatic testing that receiver combination parameter was realized to RF switch, frequency spectrograph, test equipment structure unit convenient to use, and have the adjustable ability to test equipment and calibration process is convenient feasible in addition, reduces tester's intensity of labour effectively, has improved efficiency of software testing, has reduced human error's production, and the test result is more accurate.
Description
Technical field
This utility model designs a kind of radio-frequency apparatus test device and in particular to a kind of intermediate-frequency receiver special test platform.
Background technology
In the today of personal communication of progressively marching toward, the effect of radio communication is more and more important.Numeral with radio communication
Change, networking, miniaturization and intellectuality, radio will change to software-type through numeric type from analogue type, corresponding connect
The structure of receipts machine also will occur great change.Digital if receiver also known as digital conversion receiver, its typical receiver
Structure remains super heterodyne type, only by analog frequency conversion, RF spectrum is changed to relatively low intermediate frequency, the then low IF of here
On be digitized, then realize signal extraction and demodulation with DSP technology.
Apply more and more in every technical field with receiver, the quality of the service behaviour of receiver may be straight
Connect the normal operation having influence on whole system.So needing through tight survey before the commencement of commercial operation of receiver input coefficient
Examination, but current various method of testing complex steps, and each step need manually test respectively, inefficient and easily
Produce personal error.
Utility model content
The problems such as in order to solve above-mentioned existing, this utility model provides a kind of many material intelligents fertilizer compounding machine, specifically side
Case is as follows：
A kind of intermediate-frequency receiver special test platform, described testboard includes machine case body, industrial computer, microwave signal source and frequency
Spectrometer, is provided with power supply, signal control circuit, SP3T radio-frequency (RF) switch, hilted broadsword eight throw radio-frequency (RF) switch and the 3rd in machine case body
Local oscillator；Described machine case body is provided with some test equipment input interface sockets, some test equipment output interface sockets, connection
Device jack, the three-phase socket with insurance, on and off switch and one core socket；Described industrial computer is connected with signal control circuit, institute
State microwave signal source to connect with industrial computer and SP3T radio-frequency (RF) switch respectively, described audiofrequency spectrometer respectively with industrial computer and hilted broadsword eight
Throw radio-frequency (RF) switch connection.
Further, if be additionally provided with described machine case body the Operation switch connecting with power supply, voltmeter, ammeter and
The dry display lamp connecting with signal control circuit.
Further, described power supply, signal control circuit, SP3T radio-frequency (RF) switch, hilted broadsword eight throw radio-frequency (RF) switch and
Three local oscillators in machine case body pass through dividing plate separated from each other it is ensured that the installation of each element is accomplished not interfereing with each other as far as possible, Er Qiebian
In later detachable maintaining.
Further, described power supply adopts linear power supply, is on the one hand because power less, be on the other hand in order to
Reduce the interference to high-frequency signal for the power supply ripple.
Further, the side of described machine case body is provided with handle, and being easy to operator at any time can root using handle
According to work requirements movable chassis body.
Further, described industrial computer is Portable hand box structure, and the one of side of described industrial computer is lower turning type
Operation keyboard, is provided with display screen corresponding with keyboard side, described industrial computer is with respect to display screen both sides in described industrial computer
Side offers some interfaces, for being connected with each working portion by cable.
Further, it is provided with protection cap outside described interface, prevent debris during off working state from entering in incoming interface.
The beneficial effects of the utility model are：The utility model proposes a kind of intermediate-frequency receiver special test platform, lead to
Crossing industrial computer controls microwave signal source, the 3rd local oscillator, signal control circuit, SP3T radio-frequency (RF) switch, hilted broadsword eight to throw radio frequency and open
Pass, audiofrequency spectrometer, to realize the automatic test of receiver combination parameter, have the software control interface of close friend and extendible software
Interface, test equipment structure unit is easy to use, and test equipment has an adjustable ability and calibration process facilitates feasible, has
Effect ground reduces the labor intensity of tester, improves testing efficiency, decreases the generation of personal error, test result is more accurate
Really.
Brief description
Fig. 1. the inside principle framework figure of this utility model testboard,
Fig. 2. the structural front view of this utility model testboard,
Fig. 3. the structural side view of this utility model testboard,
Fig. 4. the structure rearview of this utility model testboard,
Fig. 5. the structural representation of this utility model industrial computer.
Figure number and title：1st, voltmeter, 2, ammeter, 3, machine case body, 4, one core socket, 5, Operation switch,
6th, handle, 7, connector plug jack, 8, the three-phase socket with insurance, 9, industrial computer, 10, display screen, 11, operation keyboard, 12, protection
Lid.
Specific embodiment
For describing technology contents, structural features, institute's reached purpose and effect of this utility model in detail, hereby enumerate reality below
Apply example and coordinate accompanying drawing to be explained in detail.
Embodiment 1
Refer to shown in Fig. 1-3, this utility model provide a kind of intermediate-frequency receiver special test platform, including machine case body 3,
Industrial computer 9, microwave signal source and audiofrequency spectrometer, be provided with machine case body 3 power supply, signal control circuit, SP3T radio-frequency (RF) switch,
Hilted broadsword eight throws radio-frequency (RF) switch and the 3rd local oscillator；Machine case body 3 is provided with some test equipment input interface sockets, some tests set
Standby output interface socket, connector plug jack 7, the three-phase socket 8 with insurance, on and off switch 5 and one core socket 4；Industrial computer 9 with
In machine case body 3 signal control circuit connection, microwave signal source respectively with industrial computer 9 and machine case body 3 in SP3T
Radio-frequency (RF) switch connects, and audiofrequency spectrometer is thrown radio-frequency (RF) switch with hilted broadsword eight in industrial computer 9 and machine case body 3 respectively and connected.On machine case body 3
Be additionally provided with the Operation switch 5 connecting with power supply, voltmeter 1, ammeter 2 and some with machine case body 3 in signal control circuit
The display lamp of connection.The amplitude of the sine wave signal being inputted by signal source is -105dBmW～-10dBmW；3rd local oscillator output
Signal amplitude is (5～8) dBmW, and its output impedance is 50 Ω；The eight tunnel intermediate-freuqncy signals that product is inputted by testboard are through hilted broadsword eight
Throw switch timesharing exports audiofrequency spectrometer and is tested it is contemplated that life problems, and using electrical switch, hilted broadsword eight throw switch refers mainly to
It is designated as：Frequency range 10MHz～80MHz, insertion loss is not more than 4.5dB, and isolation is not less than 50dB, and input and output impedance is
50Ω.
Because power is less, and in order to reduce the interference to high-frequency signal for the power supply ripple, so power supply adopts line
Property power supply, power supply type selecting leading indicator be+8.2V/2A, -8.2V/300mA ,+24V/1.5A, for signal control circuit, the 3rd
Local oscillator, panel ledss are powered, and precision is 1%.In order to monitor the voltage and current of+8V and -8V power supply, here adopts Shan
Pull together the gauge outfit of photoelectricity in west.The monitoring of wherein voltage adopts XL3113 voltmeter, powers as alternating current 220V, and full scale value is ±
19.99V, accuracy is ± 20mV；+ 8V current monitoring adopts XL3215 ammeter, powers as alternating current 220V, and full scale value is ±
1.999A, accuracy is ± 5mA；- 8V current monitoring adopts XL3214 ammeter, powers as alternating current 220V, and full scale value is ±
199.9mA, accuracy is ± 1mA.
Power supply, signal control circuit, SP3T radio-frequency (RF) switch, hilted broadsword eight throw radio-frequency (RF) switch and the 3rd local oscillator in cabinet originally
In body 3 by dividing plate separated from each other it is ensured that the installation of each element is accomplished not interfereing with each other as far as possible, and be easy to later dismounting dimension
Repair.The side of machine case body 3 is provided with handle 6, and being easy to operator at any time can be according to work requirements movable chassis body.
Industrial computer 9 is Portable hand box structure, and the one of side of industrial computer 9 is lower turning type operation keyboard 11, industry control
It is provided with display screen 10 corresponding with keyboard side, if industrial computer 9 offers stem grafting with respect to the side of display screen 10 both sides in machine 9
Mouthful, for being connected with each working portion by cable, outside interface, it is provided with protection cap 12, prevent debris during off working state from entering
In interface.Industrial computer 9 also includes GPIB card, and industrial computer and audiofrequency spectrometer are to state between industrial computer and microwave signal source all by USB
Turn the connection of GPIB cable.
In sum, the preferred embodiment of only this utility model, does not limit protection domain of the present utility model with this, all
The equivalence changes made according to this utility model the scope of the claims and description and modification, are all what this utility model patent covered
Within the scope of.
Claims (7)
1. a kind of intermediate-frequency receiver special test platform it is characterised in that：Described testboard includes machine case body, industrial computer, microwave
Signal source and audiofrequency spectrometer, are provided with power supply, radio frequency thrown by signal control circuit, SP3T radio-frequency (RF) switch, hilted broadsword eight in machine case body
Switch and the 3rd local oscillator；Described machine case body is provided with some test equipment input interface sockets, the output of some test equipments connects
Mouth socket, connector plug jack, the three-phase socket with insurance, on and off switch and one core socket；Described industrial computer is controlled with signal
Circuit communication, described microwave signal source is connected with industrial computer and SP3T radio-frequency (RF) switch respectively, described audiofrequency spectrometer respectively with work
Control machine is thrown radio-frequency (RF) switch with hilted broadsword eight and is connected.
2. a kind of intermediate-frequency receiver special test platform according to claim 1 it is characterised in that：On described machine case body also
It is provided with the Operation switch connecting with power supply, voltmeter, ammeter and some display lamps connecting with signal control circuit.
3. a kind of intermediate-frequency receiver special test platform according to claim 1 it is characterised in that：Described power supply, signal control
Radio-frequency (RF) switch thrown by circuit processed, SP3T radio-frequency (RF) switch, hilted broadsword eight and the 3rd local oscillator is mutually separated by by dividing plate in machine case body
Open.
4. a kind of intermediate-frequency receiver special test platform according to claim 1 it is characterised in that：Described power supply is using linear
Power supply.
5. a kind of intermediate-frequency receiver special test platform according to claim 1 it is characterised in that：The side of described machine case body
Face is provided with handle.
6. a kind of intermediate-frequency receiver special test platform according to claim 1 it is characterised in that：Described industrial computer is portable
Formula suitcase structure, the one of side of described industrial computer is lower turning type operation keyboard, is provided with and keyboard side in described industrial computer
The corresponding display screen in face, described industrial computer offers some interfaces with respect to the side of display screen both sides.
7. a kind of intermediate-frequency receiver special test platform according to claim 6 it is characterised in that：It is provided with outside described interface
Protection cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620877041.3U CN205986895U (en) | 2016-08-12 | 2016-08-12 | Intermediate frequency receiver special test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620877041.3U CN205986895U (en) | 2016-08-12 | 2016-08-12 | Intermediate frequency receiver special test platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205986895U true CN205986895U (en) | 2017-02-22 |
Family
ID=59977636
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620877041.3U Active CN205986895U (en) | 2016-08-12 | 2016-08-12 | Intermediate frequency receiver special test platform |
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| CN (1) | CN205986895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111913068A (en) * | 2018-11-19 | 2020-11-10 | 韩伟 | Portable microelectronic AC counting equipment test bench |
-
2016
- 2016-08-12 CN CN201620877041.3U patent/CN205986895U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111913068A (en) * | 2018-11-19 | 2020-11-10 | 韩伟 | Portable microelectronic AC counting equipment test bench |
| CN111913068B (en) * | 2018-11-19 | 2023-05-09 | 高曙明 | Portable microelectronic alternating current counting equipment test bench |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |