CN110441573A - A kind of oscillograph current probe switching device - Google Patents
A kind of oscillograph current probe switching device Download PDFInfo
- Publication number
- CN110441573A CN110441573A CN201910765962.9A CN201910765962A CN110441573A CN 110441573 A CN110441573 A CN 110441573A CN 201910765962 A CN201910765962 A CN 201910765962A CN 110441573 A CN110441573 A CN 110441573A
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- Prior art keywords
- oscillograph
- current probe
- radio
- switching device
- mass spectrometer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R13/00—Arrangements for displaying electric variables or waveforms
- G01R13/02—Arrangements for displaying electric variables or waveforms for displaying measured electric variables in digital form
- G01R13/0218—Circuits therefor
- G01R13/0272—Circuits therefor for sampling
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The present invention provides a kind of oscillograph current probe switching devices, including shell, the radio-frequency mass spectrometer of setting inside the shell, the radio-frequency mass spectrometer has multiple input terminals and an output end, multiple input terminals are separately connected a current probe, and output end connects the current channel interface of oscillograph.The present invention is by the radio-frequency mass spectrometer with single-pole three throw function needing the probe of measuring signal to be connected automatically on channel oscilloscope.
Description
Technical field
The present invention relates to digital oscilloscope field more particularly to a kind of oscillograph current probe switching devices.
Background technique
Digital oscilloscope is the high property that a series of technologies such as Usage data collection, A/D conversion, software programming manufacture
It can oscillograph.Digital oscilloscope generally supports multilevel menu, can be supplied to user's multiple choices, a variety of analytic functions.There are also one
A little oscillographs can provide storage, realize preservation and processing to waveform.
Oscillograph is usually 2 channels or 4 channels, and an external trigger channel, there are three different voltages, three at present
Current signal, a trigger signal need the case where acquiring simultaneously, however the signal of existing oscillograph triggering is preferably at most three
Voltage signal, a current signal and a trigger signal, so four-way cannot acquire six signals, three voltage signals are every
It requires to show when secondary measurement.
In order to realize the switching between different current probes, urgent need provides a kind of oscillograph current probe switching device.
Summary of the invention
The purpose of the present invention is to provide a kind of oscillograph current probe switching devices, are switched using radio frequency converting switch
Current sensor probe realizes the measurement of high-frequency signal and tiny signal.
Realize that the technical solution of the object of the invention is as follows:
A kind of oscillograph current probe switching device, including shell, the radio-frequency mass spectrometer of setting inside the shell, which turns
Changing switch has multiple input terminals and an output end, and multiple input terminals are separately connected a current probe, and output end connection is shown
The current channel interface of wave device.
As a further improvement of the present invention, the input terminal passes through coaxial fitting and is electrically connected with current probe.
As a further improvement of the present invention, the output end is electrically connected by coaxial fitting with oscillograph.
As a further improvement of the present invention, the output end is the common end of radio-frequency mass spectrometer.
As a further improvement of the present invention, the radio-frequency mass spectrometer controls any input terminal and output by computer
End connection.
As a further improvement of the present invention, the radio-frequency mass spectrometer is single-pole three-throw switch, and the output end is single
The common end of three throw switch of knife, the input terminal are the normally open end of single-pole three-throw switch.
As a further improvement of the present invention, the common end of the radio-frequency mass spectrometer is connected by the coaxial line with Q9 connector
It is connected on the channel channel1 of oscillograph.
As a further improvement of the present invention, the control common end COM of the radio-frequency mass spectrometer is connected to control signal
Ground, port PO S1, port PO S2, port PO S3 connect respectively control signal anode.
Compared with prior art, the beneficial effects of the present invention are:
The present invention is by the radio-frequency mass spectrometer with single-pole three throw function needing the probe of measuring signal to be connected automatically to show
On wave device channel.
Detailed description of the invention
Fig. 1 is the schematic diagram of oscillograph current probe switching device.
In figure, the 1, first current sensor；2, the second current sensor；3, third current sensor；4, it shields.
Specific embodiment
The present invention is described in detail for each embodiment shown in reference to the accompanying drawing, but it should be stated that, these
Embodiment is not limitation of the present invention, those of ordinary skill in the art according to these embodiments made by function, method,
Or equivalent transformation or substitution in structure, all belong to the scope of protection of the present invention within.
As shown in Figure 1, the present embodiment by the radio frequency converting switch of SP3T type need at this time the probe of measuring signal from
It is dynamic to be connected on channel oscilloscope.
Specifically, present embodiment discloses a kind of oscillograph current probe switching devices, including shell, setting are in shell
There are multiple input terminals and an output end, multiple input terminals to be separately connected for interior radio-frequency mass spectrometer, the radio-frequency mass spectrometer
One current probe, output end connect the current channel interface of oscillograph.Input terminal passes through coaxial fitting and current probe electricity
Connection.Output end is electrically connected by coaxial fitting with oscillograph.Output end is the common end of radio-frequency mass spectrometer.Radio frequency conversion is opened
Pass controls any input terminal by computer and is connected to output end.
It is preferred that radio-frequency mass spectrometer is single-pole three-throw switch, output end is the common end of single-pole three-throw switch, and input terminal is
The normally open end of single-pole three-throw switch.The common end of radio-frequency mass spectrometer is connected to oscillograph by the coaxial line with Q9 connector
On the channel channel1.The control common end COM of radio-frequency mass spectrometer is connected to the ground of control signal, port PO S1, port
POS2, port PO S3 connect the anode of control signal respectively.
First current sensor 1, the second current sensor 2, third current sensor 3 are that a kind of electric current of sample rate current is visited
Head.Digital oscilloscope is data acquisition, A/D conversion, the high-performance oscillograph that a series of technology such as software programming manufactures.
It is exactly the internal structure of radio frequency converting switch in the dotted line frame of Fig. 1, is with 4 coaxial fittings (Q9 connector) outside.
3 current sensors are connected respectively on radio frequency converting switch by the coaxial line with Q9 connector, and radio frequency switching is opened
The public output C of pass is connected on the channel channel1 of oscillograph that (coaxial line is by two by the coaxial line with Q9 connector
The navigation system that the coaxial cylindrical conductor of root is constituted fills a kind of broadband microwave of air or high-frequency dielectric between internal and external conductor
Transmission line.Mesh grid and aluminum plastic composite belt longitudinal package close, and are developed from single woven mesh structure, it has flexibility
It good, the features such as light-weight and connector is reliable, using reasonable composite construction, improves a lot to shielding properties).Radio frequency switching
The control common end COM of switch is connected to the ground of control signal, and the end POS1, the end POS2, the end POS3 are coupled with control signal
Anode.
The course of work: when the first current sensor 1 acquires current signal, computer control signal is after signal condition
One, the end POS1 24V positive pulse signal is given, and POS2 and POS3 terminates 0V signal, the corresponding RF switch of control acts, just
First current sensor 1 is communicated on the channel1 of oscillograph, at this time if thering is electric current to flow through in the first current sensor 1
If, the collected waveform of oscillograph is exactly the signal of the first current sensor 1 acquisition.Computer control signal passes through signal tune
Add 24V positive pulse signal to the end POS2 after reason, and the end POS1 and POS3 terminate 0V signal, the corresponding RF switch of control is dynamic
Make, the second current sensor 2 is connected on oscillograph channel1, at this time if having electric current stream in the second current sensor 2
If crossing, the collected waveform of oscillograph is exactly the collected current signal of the second current sensor 2.Computer control signal warp
It crosses after signal condition and adds 24V positive pulse signal to the end POS3, and the end POS1 and POS2 terminate 0V signal, the corresponding radio frequency of control
Switch motion is just connected to third current sensor 3 on oscillograph channel1, at this time if in third current sensor 3
If having electric current to flow through, the collected waveform of oscillograph is exactly the collected current signal of third current sensor 3.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention
Or change should all be included in the protection scope of the present invention.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of oscillograph current probe switching device, which is characterized in that including the radio frequency conversion of shell, setting inside the shell
Switch, the radio-frequency mass spectrometer have multiple input terminals and an output end, and multiple input terminals are separately connected a current probe,
The current channel interface of output end connection oscillograph.
2. oscillograph according to claim 1 current probe switching device, which is characterized in that the input terminal passes through
Coaxial fitting is electrically connected with current probe.
3. oscillograph according to claim 1 current probe switching device, which is characterized in that the output end passes through same
Shaft coupling is electrically connected with oscillograph.
4. oscillograph according to claim 3 current probe switching device, which is characterized in that the output end is radio frequency
The common end of change-over switch.
5. oscillograph according to claim 1 current probe switching device, which is characterized in that the radio-frequency mass spectrometer
Any input terminal is controlled by computer to be connected to output end.
6. oscillograph according to claim 5 current probe switching device, which is characterized in that the radio-frequency mass spectrometer
Control common end COM be connected to the ground of control signal, port PO S1, port PO S2, port PO S3 connect control signal respectively
Anode.
7. oscillograph according to claim 1 current probe switching device, which is characterized in that the radio-frequency mass spectrometer
For single-pole three-throw switch, the output end is the common end of single-pole three-throw switch, and the input terminal is the normal of single-pole three-throw switch
Beginning.
8. oscillograph according to claim 7 current probe switching device, which is characterized in that the radio-frequency mass spectrometer
Common end be connected on the channel channel1 of oscillograph by the coaxial line with Q9 connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910765962.9A CN110441573A (en) | 2019-08-19 | 2019-08-19 | A kind of oscillograph current probe switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910765962.9A CN110441573A (en) | 2019-08-19 | 2019-08-19 | A kind of oscillograph current probe switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110441573A true CN110441573A (en) | 2019-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910765962.9A Pending CN110441573A (en) | 2019-08-19 | 2019-08-19 | A kind of oscillograph current probe switching device |
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Citations (8)
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| JP2011053098A (en) * | 2009-09-02 | 2011-03-17 | Nec Computertechno Ltd | System and method for inspecting printed circuit board |
| CN102437934A (en) * | 2011-09-08 | 2012-05-02 | 株洲南车时代电气股份有限公司 | Jig plate for testing signals of multifunctional vehicle bus (MVB) and wire train bus (WTB) |
| DE102012220849A1 (en) * | 2012-11-15 | 2014-05-15 | Rohde & Schwarz Gmbh & Co. Kg | Circuit for the arithmetic combination of several input signals |
| CN104601254A (en) * | 2014-12-18 | 2015-05-06 | 北京星河亮点技术股份有限公司 | Radio frequency switch matrix based signal source test system and method |
| CN206040915U (en) * | 2016-09-14 | 2017-03-22 | 南京国睿安泰信科技股份有限公司 | Microwave channel selector auto -change over device based on biasing ware and separate straight ware |
| CN206339587U (en) * | 2016-11-30 | 2017-07-18 | 成都国蓉科技有限公司 | A kind of signal waveform display device |
| CN109001502A (en) * | 2018-07-19 | 2018-12-14 | 山东大学 | A kind of long-range switching device of oscilloprobe array and its working method |
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2019
- 2019-08-19 CN CN201910765962.9A patent/CN110441573A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201352228Y (en) * | 2008-12-24 | 2009-11-25 | 深圳世纪晶源光子技术有限公司 | Detecting system and device for production lines |
| JP2011053098A (en) * | 2009-09-02 | 2011-03-17 | Nec Computertechno Ltd | System and method for inspecting printed circuit board |
| CN102437934A (en) * | 2011-09-08 | 2012-05-02 | 株洲南车时代电气股份有限公司 | Jig plate for testing signals of multifunctional vehicle bus (MVB) and wire train bus (WTB) |
| DE102012220849A1 (en) * | 2012-11-15 | 2014-05-15 | Rohde & Schwarz Gmbh & Co. Kg | Circuit for the arithmetic combination of several input signals |
| CN104601254A (en) * | 2014-12-18 | 2015-05-06 | 北京星河亮点技术股份有限公司 | Radio frequency switch matrix based signal source test system and method |
| CN206040915U (en) * | 2016-09-14 | 2017-03-22 | 南京国睿安泰信科技股份有限公司 | Microwave channel selector auto -change over device based on biasing ware and separate straight ware |
| CN206339587U (en) * | 2016-11-30 | 2017-07-18 | 成都国蓉科技有限公司 | A kind of signal waveform display device |
| CN109001502A (en) * | 2018-07-19 | 2018-12-14 | 山东大学 | A kind of long-range switching device of oscilloprobe array and its working method |
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Application publication date: 20191112 |
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