CN207938915U - A kind of aviation socket of included current acquisition function - Google Patents
A kind of aviation socket of included current acquisition function Download PDFInfo
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- CN207938915U CN207938915U CN201721766910.6U CN201721766910U CN207938915U CN 207938915 U CN207938915 U CN 207938915U CN 201721766910 U CN201721766910 U CN 201721766910U CN 207938915 U CN207938915 U CN 207938915U
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- magnetic core
- aviation socket
- sample circuit
- aviation
- ring shaped
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Abstract
The utility model proposes a kind of aviation sockets of included current acquisition function, including shell, insulated fastener and aviation contact pin；Further include ring shaped conductive magnetic core, Hall component, sample circuit；The ring shaped conductive magnetic core is fixed on by insulated fastener in shell, and the conduction magnetic core circumferentially discontinuously, has gap；The Hall component is fixed on by insulating materials in gap；The sampled signal of the Hall component is exported to sample circuit, and sample circuit, which amplifies sampled signal, to be exported.The utility model contactless can sample and measurement electric current, is not had an impact to operating circuit, wide range of measurement, and be easily installed.The aviation socket can be mounted in the cabinet of equipment, and in a non-contact manner, real-time dynamic monitoring flows through the current change quantity of aviation socket, and the signal that control unit is exported by acquiring aviation socket can obtain the variation of input and output electric current in real time.
Description
Technical field
The utility model is related to technical field of measurement and test, specially a kind of aviation socket of included current acquisition function can
Realize non-contact electric current measurement.
Background technology
In some air equipment testing fields, since measured signal is there are high security requirement, need to carry out dynamic realtime
Monitoring, and introduce in order to avoid sample circuit influence to measured signal itself or thus insecurity, it is desirable that it cannot
By the way of contact sampling, so needing to design a kind of aviation socket for capableing of contactless sampling and measurement.
Invention content
In order to solve the problems existing in the prior art, the utility model proposes a kind of aviations of included current acquisition function to insert
Seat contactless can sample and measure electric current, not had an impact to operating circuit, wide range of measurement, and be easily installed.The boat
Dummy receptacle can be mounted in the cabinet of equipment, and in a non-contact manner, the electric current that real-time dynamic monitoring flows through aviation socket becomes
Change amount, the signal that control unit is exported by acquiring aviation socket, can obtain the variation of input and output electric current in real time.
Cardinal principle is：
1, conducting magnet core is mounted on the shell of aviation socket, forms the closed magnetic field vertical with current direction, works as electricity
When stream is by inside aviation socket, magnetic core generates induced current；
2, a small opening is designed in iron core side, opening places Hall element, and Hall element measures Magnetic Field
And output voltage, signal is amplified by operational amplifier, obtains required signal voltage；
3, by being demarcated to sampling and outputting voltage value, the measurement to the current value flowed through in aviation socket is completed.
Based on above-mentioned principle：
The technical solution of the utility model is：
A kind of aviation socket of included current acquisition function, including shell, insulated fastener and aviation contact pin；Its feature
It is：Further include ring shaped conductive magnetic core, Hall component, sample circuit；The ring shaped conductive magnetic core is fixed by insulated fastener
In shell, the conduction magnetic core circumferentially discontinuously, has gap；Between the Hall component is fixed on by insulating materials
In gap；The sampled signal of the Hall component is exported to sample circuit, and sample circuit, which amplifies sampled signal, to be exported.
Further preferred embodiment, a kind of aviation socket of included current acquisition function, it is characterised in that：Sampling electricity
Road carries out secondary singal compensation by the second compensation coil being wrapped on ring shaped conductive magnetic core.
Further preferred embodiment, a kind of aviation socket of included current acquisition function, it is characterised in that：It is described to adopt
Sample circuit sampling is electric flux in the surrounded range of ring shaped conductive magnetic core.
Advantageous effect
The utility model has the beneficial effects that：
1, non-contact measurement purpose is realized, avoids the crosslinking of measuring signal and measured signal, not to current loop
It has an impact, it is not necessary to design specialized sampling interface circuit；
2, measuring circuit is embedded into aviation socket, is easily installed and debugs；
3, can on-line monitoring leakage current value, detect interface wide adaptation range, the arbitrary wave such as direct current, exchange and pulse can be measured
The signal of shape, measuring current value range can be from 100mA to 100A.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly will be from following description
In become apparent, or recognized by the practice of the utility model.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination following accompanying drawings to embodiment
Become apparent and is readily appreciated that, wherein：
Fig. 1 is magnetic core and Hall element fundamental diagram；
Fig. 2 signal amplifying return circuit block diagrams.
Specific implementation mode
The embodiments of the present invention are described below in detail, the embodiment is exemplary, it is intended to for explaining this reality
With novel, and should not be understood as limiting the present invention.
The aviation socket of included current acquisition function in the present embodiment, including shell, insulated fastener and aviation contact pin；Also
Including ring shaped conductive magnetic core, Hall component, sample circuit；The ring shaped conductive magnetic core is fixed on shell by insulated fastener
Interior, the conduction magnetic core circumferentially discontinuously, has gap；The Hall component is fixed on by insulating materials in gap；
The sampled signal of the Hall component is exported to sample circuit, and sample circuit, which amplifies sampled signal, to be exported.Sample circuit is logical
It crosses the second compensation coil being wrapped on ring shaped conductive magnetic core and carries out secondary singal compensation.The sampling circuit samples are annulars
Electric flux in conductive the surrounded range of magnetic core.
The use situation of the present embodiment is：
1, the acquisition of emission current
When cabinet connects up, it would be desirable to which the signal wire of monitoring passes through aviation socket and is fixed.It is introduced to aviation socket
Power supply, supply voltage are 5~28V of direct current, and encapsulated signal compensation circuit and interface matched circuit are internally integrated in aviation socket, can
Output voltage values.
2, the monitoring of current status
The signal output end of aviation socket is acquired, it can be achieved that aviation socket inside stream over current value by control computer
Real-time acquisition, acquisition mode may be set to either statically or dynamically, and when dynamic, the response time of output circuit is less than l μ S, tracking speed
Spend di/dt be more than 50A/S, whole acquisition precision up to Hall sensor range 1%.
3, signal processing
By collected signal, filtering and enhanced processing again are carried out, by setting different tested current values, to adopting
Sample signal carries out calibration processing, completes the preparation before use.
The core sampler of the utility model uses Hall current sensor, is a kind of contactless, achievable
In high precision, the device of dynamic large-range measuring, it can detect various direct currents, exchange and various pulse signals, and have volume
It is small, the advantages that light-weight, long lifespan is easy for installation, small power consumption, working frequency is high.
By test, the key technical indexes of the utility model is as follows：
A) the detectable current value range of sensor：100mA~100A；
B) in 20%~100% range of rated current, worst error 0.2%；
C) whole current acquisition precision：1%；
D) dynamic characteristic：Response time is less than l μ S, and tracking velocity di/dt is more than 50A/S；
E) collectable AC signal frequency：0~100kHz；
F) overload capacity：3 times of specified tested electric currents；
G) operating temperature range：- 55~+125 DEG C；
H) reliability：MTBF values are more than 50,000 hours.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are not departing from the utility model
Principle and objective in the case of above-described embodiment can be changed in the scope of the utility model, change, replace and
Modification.
Claims (3)
1. a kind of aviation socket of included current acquisition function, including shell, insulated fastener and aviation contact pin；It is characterized in that：
Further include ring shaped conductive magnetic core, Hall component, sample circuit；The ring shaped conductive magnetic core is fixed on shell by insulated fastener
Interior, the conduction magnetic core circumferentially discontinuously, has gap；The Hall component is fixed on by insulating materials in gap；
The sampled signal of the Hall component is exported to sample circuit, and sample circuit, which amplifies sampled signal, to be exported.
2. a kind of aviation socket of included current acquisition function according to claim 1, it is characterised in that：Sample circuit passes through
The second compensation coil being wrapped on ring shaped conductive magnetic core carries out secondary singal compensation.
3. a kind of aviation socket of included current acquisition function according to claim 2, it is characterised in that：The sample circuit
What is sampled is the electric flux in the surrounded range of ring shaped conductive magnetic core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721766910.6U CN207938915U (en) | 2017-12-18 | 2017-12-18 | A kind of aviation socket of included current acquisition function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721766910.6U CN207938915U (en) | 2017-12-18 | 2017-12-18 | A kind of aviation socket of included current acquisition function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207938915U true CN207938915U (en) | 2018-10-02 |
Family
ID=63646077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721766910.6U Active CN207938915U (en) | 2017-12-18 | 2017-12-18 | A kind of aviation socket of included current acquisition function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207938915U (en) |
-
2017
- 2017-12-18 CN CN201721766910.6U patent/CN207938915U/en active Active
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