CN207380099U - A kind of multi channel signals conversion equipment - Google Patents
A kind of multi channel signals conversion equipment Download PDFInfo
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- CN207380099U CN207380099U CN201721505006.XU CN201721505006U CN207380099U CN 207380099 U CN207380099 U CN 207380099U CN 201721505006 U CN201721505006 U CN 201721505006U CN 207380099 U CN207380099 U CN 207380099U
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- optical isolation
- multiple optical
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- channel signals
- multi channel
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Abstract
The utility model discloses a kind of multi channel signals conversion equipments, for solve the electric quantity signal exported all types of sensors during current on-the-spot test be uniformly converted to the signal for meeting tester requirement conversion method versatility it is poor, caused on-the-spot test process is numerous and diverse and the technical issues of inefficiency.The utility model includes：Switching Power Supply, test sensor input, signal output interface and multiple optical isolation amplifiers；The input terminal of multiple optical isolation amplifiers has been correspondingly connected with test sensor input, and the output terminal of multiple optical isolation amplifiers has been correspondingly connected with signal output interface；Switching Power Supply is connected to by first switch between multiple optical isolation amplifiers and test sensor input, for providing power supply for the active sensor of insertion test sensor input；Multiple optical isolation amplifiers are converted to unified output signal and are exported through signal output interface to field test instrument for carrying out different types of input signal.
Description
Technical field
The utility model is related to electric system on-the-spot test technical field more particularly to a kind of multi channel signals converting means
It puts.
Background technology
In electric system, in order to evaluate the level of vibration under generating set operating condition, in order to be fault diagnosis, thing
Therefore analysis and improvement generator set vibration provide foundation, it usually needs the power for characterizing unit situation is believed using measuring and analysing meter
Number, vibration signal, pressure transmitter signal and speed regulator system adjustment parameter signal etc. carry out on-the-spot test and analysis.
On-the-spot test process for unit situation is largely that non-electrical parameter is passed through conversion element (such as sensor)
Non-electric charge quantity signalling is converted into electric quantity signal, and due in electric system unit situation it is complex, the biography used in on-the-spot test
Whether sensor species is various, and by power supply being needed to be divided into active sensor and passive sensor, divide by output electric quantity signal is different
To have the output of 0~20mA electric currents, the output of 4~20mA electric currents, 0~5V voltage outputs and 0~10V voltage outputs etc..It is however live
It is different that input signal types needed for test equipment may export signal type from sensor, it is therefore desirable to by all types of sensors
The electric quantity signal of output is uniformly converted to the signal for meeting tester requirement, while also needs to carry out active sensor corresponding electricity
Press the power supply of grade.Traditional electric current --- voltage conversion method be connect in sensor current output signal line cable it is matched
The voltage signal at resistance both ends is inputted on-spot tester by precision resistance, and the electric current --- voltage conversion method needs additional strings
Join precision resistance, operating process is numerous and diverse, and construction is inconvenient, and also needs in addition be powered for active sensor, and scene is surveyed
Method for testing versatility is not strong, causes on-the-spot test process numerous and diverse and inefficiency.
Utility model content
The utility model provides a kind of multi channel signals conversion equipment, and solving current on-the-spot test in the process will be each
The conversion method versatility that the electric quantity signal of type sensor output is uniformly converted to the signal for meeting tester requirement is poor, leads
The on-the-spot test process of cause is numerous and diverse and the technical issues of inefficiency.
A kind of multi channel signals conversion equipment provided by the utility model, including：
Switching Power Supply, test sensor input, signal output interface and multiple optical isolation amplifiers；
The multiple optical isolation amplifier includes at least two different optical isolation amplifiers；
The quantity of the test sensor input and the signal output interface is put with the multiple Phototube Coupling
The quantity of big device is consistent；
The input terminal of the multiple optical isolation amplifier, which connects one to one, the test sensor input, institute
The output terminal for stating multiple optical isolation amplifiers connects one to one and has the signal output interface；
The Switching Power Supply is connected to the multiple optical isolation amplifier and the test sensor by first switch
Between input interface, for providing power supply to be inserted into the active sensor of the test sensor input；
The multiple optical isolation amplifier is converted to unified output signal for carrying out different types of input signal
And it is exported through the signal output interface to field test instrument.
Preferably, the Switching Power Supply is DC power supply, the DC output voltage of the Switching Power Supply include 5V, 12V and
24V。
Preferably, the operating temperature range of the Switching Power Supply is -25~+70 DEG C.
Preferably, the multiple optical isolation amplifier can realize that the signal of conversion includes 0~20mA, 4~20mA, 0
~5V and 0~10V.
Preferably, the test sensor input is plug self-locking connector.
Preferably, the signal output interface is Neil-Kang Saiman bayonet BNC connectors.
Preferably, also connect between the test sensor input and the input terminal of the multiple optical isolation amplifier
It is connected to the first wire connection terminal；
The second wiring is also associated between the output terminal of the signal output interface and the multiple optical isolation amplifier
Terminal.
Preferably, first wire connection terminal is installed in the first U-shaped rails, the multiple optical isolation amplifier installation
In in the second U-shaped rails, second wire connection terminal is installed in the 3rd U-shaped rails.
Preferably, the multiple optical isolation amplifier is also connected with AC power by second switch.
Preferably, the first switch and the second switch are Self-resetting Illuminated Switch.
As can be seen from the above technical solutions, the utility model has the following advantages：
Multi channel signals conversion equipment provided by the utility model is provided with multiple optical isolation amplifiers, by by scene
The output signal of test sensor is inputted to optical isolation amplifier, and conversion and the output of signal are realized by optical isolation amplifier
Into field test instrument, different optical isolation amplifiers is installed by replacing in the utility model, you can realize multiple types
The conversion of type signal；And due to being provided with multiple Phototube Coupling amplifications disconnected from each other inside same chromacoder
Device enables to on-the-spot test process to be converted while can completing polytype signal simultaneously；In addition, in optical isolation amplifier
The Switching Power Supply with switch is additionally provided between test sensor input, active/nothing can be realized in the present apparatus
The power supply of source sensor/excision power supply so that the present apparatus has stronger applicability in the complicated site environment of reply, can meet
Test request in the case of the overwhelming majority, and can flexible mounting and adjusting be carried out to the present apparatus according to test request, compared to tradition
Signal conversion method, eliminate the numerous and diverse installation and debugging process of on-the-spot test process, improve the efficiency of on-the-spot test.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is that a kind of structure of the one embodiment for multi channel signals conversion equipment that the utility model embodiment provides is shown
It is intended to；
Fig. 2 is a kind of structure of another embodiment of multi channel signals conversion equipment that the utility model embodiment provides
Schematic diagram.
Specific embodiment
The utility model embodiment provides a kind of multi channel signals conversion equipment, for solving current on-the-spot test
The conversion method that the electric quantity signal for exporting all types of sensors in journey is uniformly converted to the signal for meeting tester requirement is general
Property is poor, and caused on-the-spot test process is numerous and diverse and the technical issues of inefficiency.
Purpose of utility model, feature, advantage to enable the utility model is more apparent and understandable, below will knot
The attached drawing in the utility model embodiment is closed, the technical scheme in the utility model embodiment is clearly and completely described,
Obviously, the embodiments described below are only the utility model part of the embodiment, and not all embodiment.Based on this reality
With the embodiment in new, those of ordinary skill in the art are obtained all other without making creative work
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, Fig. 1 is an a kind of implementation of multi channel signals conversion equipment that the utility model embodiment provides
The structure diagram of example.
A kind of multi channel signals conversion equipment provided by the utility model, including：
Switching Power Supply 1, test sensor input 2, signal output interface 4 and multiple optical isolation amplifiers 3.
Wherein, the multiple optical isolation amplifier 3 includes at least two different optical isolation amplifiers 3；It can
According to the needs of on-the-spot test, at least two different optical isolation amplifiers 3 are set, to realize turning for signal with different type
It changes.Wherein, the multiple optical isolation amplifier 3 can realize that the signal of conversion includes 0~20mA, 4~20mA, 0~5V and 0
~10V.For example, being set in multi channel signals conversion equipment, there are four optical isolation amplifier 3, four optical isolation amplifiers 3
The conversion of 0~20mA, 4~20mA, 0~5V and 0~10V signals can be achieved respectively, you can aforementioned signal to be uniformly converted to
Meet the signal of field test instrument requirement；In another example set there are five Phototube Couplings to amplify in multi channel signals conversion equipment
Device 3, two of which optical isolation amplifier 3 realize the conversion of 0~20mA signals, and excess-three optical isolation amplifier 3 is distinguished
Realize the conversion of 4~20mA, 0~5V and 0~10V signals.It is understood that set inside multi channel signals conversion equipment
The quantity of optical isolation amplifier 3 is not particularly limited, and can be configured according to actual demand, and optical isolation amplifier
3 type is also not particularly limited, and the replacement of optical isolation amplifier 3 can be carried out according to live actual test environment, so as to
In the conversion requirements for meeting on-the-spot test signal.
It is understood that it is described test sensor input 2 and the signal output interface 4 quantity with it is described
The quantity of multiple optical isolation amplifiers 3 is consistent；The input terminal of the multiple optical isolation amplifier 3 connects one to one
Test sensor input 2 is stated, the output terminal of the multiple optical isolation amplifier 3 connects one to one and has the signal defeated
Outgoing interface 4.I.e. each optical isolation amplifier 3 is connected by a test sensor input 2 with test sensor, and
It is corresponding the output signal for testing sensor is converted into the signal for meeting field test instrument requirement after, by a signal
Output interface 4, by transformed signal output to field test instrument.I.e. the multiple optical isolation amplifier 3 is used to carry out
Different types of input signal is converted to unified output signal and is exported through the signal output interface 4 to on-spot tester
Device.
Wherein, the Switching Power Supply 1 is connected to the multiple optical isolation amplifier 3 and the test by first switch
Between sensor input 2, for providing power supply to be inserted into the active sensor of the test sensor input 2.It can
With understanding, can choose whether to enable Switching Power Supply according to the type of the sensor of insertion test sensor input 2
1, such as when the sensor of access is active sensor, it can select to open switch, ON switch power supply 1 is that active sensor supplies
Electricity；When the sensor of access is passive sensor, switch can be turned off, disconnects Switching Power Supply 1, without being supplied for passive sensor
Electricity.Obviously, the utility model embodiment can be by realizing active sensor and passive to the control break-make of first switch 10
The switching of sensor access, meets the requirement of multiple sensors access.Further, in order to meet the sensor of on-the-spot test
Voltage requirements, the Switching Power Supply 1 is DC power supply, and the DC output voltage of the Switching Power Supply 1 can include 5V, 12V
And 24V；In order to ensure the stable operation in severe site environment lower switch power supply 1, the operating temperature model of the Switching Power Supply 1
It encloses for -25~+70 DEG C.
Further, the test sensor input 2 can be plug self-locking connector.Plug self-locking connector base
In plug self-locking locking mechanism, can ensure plug self-locking connector itself connection it is reliable, avoid it is unconscious in the case of not
Necessary separation plug self-locking connector.And if it is to be separated plug self-locking connector when, as long as user gently draw plug self-locking connect
Separation can be completed in the shell for connecing device plug.Even if it can be caused in vibration, shock or cable using plug self-locking connector
In the case of pullling, it also can guarantee and be perfectly safe, and can be operated in very limited space.
Further, the signal output interface 4 can be Neil-Kang Saiman bayonets (Bayonet Neill-
Concelman, BNC) connector.BNC connectors are a kind of radio frequency (RF) coaxial connectors of bayonet coupling, have connection/separation
Rapidly, the characteristics of reliable is contacted.
It is a kind of the detailed of one embodiment of the multi channel signals conversion equipment provided the utility model embodiment above
Thin description, below carries out a kind of another embodiment of the multi channel signals conversion equipment provided the utility model embodiment
Detailed description.
Referring to Fig. 2, Fig. 2 is a kind of another reality for multi channel signals conversion equipment that the utility model embodiment provides
Apply the structure diagram of example.
A kind of multi channel signals conversion equipment that the utility model embodiment provides, includes：
Switching Power Supply 1, test sensor input 2, signal output interface 4 and multiple optical isolation amplifiers 3.
Wherein, also connect between the test sensor input 2 and the input terminal of the multiple optical isolation amplifier 3
It is connected to the first wire connection terminal 5；Also connect between the signal output interface 4 and the output terminal of the multiple optical isolation amplifier 3
It is connected to the second wire connection terminal 6.For the ease of installing and fixing, first wire connection terminal 5 is installed in the first U-shaped rails 7, institute
It states multiple optical isolation amplifiers 3 to be installed in the second U-shaped rails 8, second wire connection terminal 6 is installed on the 3rd U-shaped rails 9
On.
Switching Power Supply 1 is connected by the first wire connection terminal 5 with test sensor input 2, wherein, test sensor is defeated
Incoming interface 2 connects for three cores, and three cores are respectively DC power anode UT, sensor signal output terminal OUT and common port COM.It opens
First switch 10 is also associated between powered-down 1 and first wire connection terminal 5 of source, it is to be understood that first switch 10 can be certainly
Illuminated Switch is resetted, break-make and the instruction of UT can be realized by Self-resetting Illuminated Switch, when Self-resetting Illuminated Switch connects,
The passage can connect active sensor (such as eddy current displacement sensor, pressure transmitter), and UT terminals realize power supply；Work as Self-resetting
When Illuminated Switch disconnects, which can connect passive sensor, and the excision of UT terminals uses.
Optical isolation amplifier 3 is installed in the second U-shaped rails 8, and provides required power supply, Mei Geguang by AC power 11
It is electrically isolated between 3 power input terminal of amplifier and AC power 11 and is connected with second switch 12, second switch 12 equally can be with
For Self-resetting Illuminated Switch, the break-make of AC power 11 and the instruction of passage input/excision are realized by Self-resetting Illuminated Switch.When
When Self-resetting Illuminated Switch connects, optical isolation amplifier 3 works, and channel interior connection can come into operation；When Self-resetting band
When lamp switch disconnects, optical isolation amplifier 3 exits work, and channel interior open circuit and isolation signals, passage excision use.
The specifically used process of multi channel signals conversion equipment that the utility model embodiment provides is：On-the-spot test senses
Device or the electric quantity signal of in-situ control system output are transmitted by testing sensor input 2 using the first wire connection terminal 5
To the input terminal of optical isolation amplifier 3, optical isolation amplifier 3 is accordingly converted input signal, transformed signal
Signal output interface 4 is transmitted to by the second wire connection terminal 6 by output terminal, and is finally passed signal by signal output interface 4
On-spot tester is transported to, so as to fulfill the conversion of signal.
Active, the unified setting of passive sensor passage is realized in the utility model embodiment, need to only pass through and control switch
The break-make of power supply, you can realize the switching of active sensor and passive sensor, can be achieved in same passage active
The access of sensor and passive sensor, saves channel space；And there is provided multiple optical isolation amplifiers so that passage is believed
Number translation type is adjustable and has insulation blocking, and signal source effectively can be protected in the case where occurring disturbing, avoid testing
When abnormal generation interference signal occurs in instrument, control system can be directly resulted in, malfunction occurs, influence the feelings of unit safety operation
The generation of condition.
The above, above example are only to illustrate the technical solution of the utility model, rather than its limitations；Although ginseng
The utility model is described in detail according to previous embodiment, it will be understood by those of ordinary skill in the art that：It is still
It can modify to the technical solution recorded in foregoing embodiments or which part technical characteristic is equally replaced
It changes；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from various embodiments of the utility model technical solution
Spirit and scope.
Claims (10)
1. a kind of multi channel signals conversion equipment, which is characterized in that including：
Switching Power Supply, test sensor input, signal output interface and multiple optical isolation amplifiers；
The multiple optical isolation amplifier includes at least two different optical isolation amplifiers；
It is described test sensor input and the signal output interface quantity with the multiple optical isolation amplifier
Quantity it is consistent；
The input terminal of the multiple optical isolation amplifier, which connects one to one, the test sensor input, described more
The output terminal of a optical isolation amplifier, which connects one to one, the signal output interface；
The Switching Power Supply is connected to the multiple optical isolation amplifier by first switch and is inputted with the test sensor
Between interface, for providing power supply to be inserted into the active sensor of the test sensor input；
The multiple optical isolation amplifier is converted to unified output signal and passes through for carrying out different types of input signal
The signal output interface is exported to field test instrument.
2. multi channel signals conversion equipment according to claim 1, which is characterized in that the Switching Power Supply is direct current
Source, the DC output voltage of the Switching Power Supply include 5V, 12V and 24V.
3. multi channel signals conversion equipment according to claim 1, which is characterized in that the operating temperature of the Switching Power Supply
Scope is -25~+70 DEG C.
4. multi channel signals conversion equipment according to claim 1 or 2, which is characterized in that the multiple Phototube Coupling is put
Big device can realize that the signal of conversion includes 0~20mA, 4~20mA, 0~5V and 0~10V.
5. multi channel signals conversion equipment according to claim 1, which is characterized in that the test sensor input
To plug self-locking connector.
6. multi channel signals conversion equipment according to claim 1, which is characterized in that the signal output interface is Buddhist nun
Er-Kang Saiman bayonet BNC connectors.
7. multi channel signals conversion equipment according to claim 1, which is characterized in that the test sensor input
The first wire connection terminal is also associated between the input terminal of the multiple optical isolation amplifier；
The second wire connection terminal is also associated between the output terminal of the signal output interface and the multiple optical isolation amplifier.
8. multi channel signals conversion equipment according to claim 7, which is characterized in that first wire connection terminal is installed on
In first U-shaped rails, the multiple optical isolation amplifier is installed in the second U-shaped rails, the second wire connection terminal installation
In in the 3rd U-shaped rails.
9. multi channel signals conversion equipment according to claim 1, which is characterized in that the multiple optical isolation amplifier
AC power is also connected with by second switch.
10. multi channel signals conversion equipment according to claim 9, which is characterized in that the first switch and described
Two switches are Self-resetting Illuminated Switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721505006.XU CN207380099U (en) | 2017-11-13 | 2017-11-13 | A kind of multi channel signals conversion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721505006.XU CN207380099U (en) | 2017-11-13 | 2017-11-13 | A kind of multi channel signals conversion equipment |
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| Publication Number | Publication Date |
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| CN207380099U true CN207380099U (en) | 2018-05-18 |
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ID=62332915
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| CN201721505006.XU Active CN207380099U (en) | 2017-11-13 | 2017-11-13 | A kind of multi channel signals conversion equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727896A (en) * | 2017-11-13 | 2018-02-23 | 广东电网有限责任公司电力科学研究院 | A kind of multi channel signals conversion equipment |
-
2017
- 2017-11-13 CN CN201721505006.XU patent/CN207380099U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727896A (en) * | 2017-11-13 | 2018-02-23 | 广东电网有限责任公司电力科学研究院 | A kind of multi channel signals conversion equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200121 Address after: 510000 room 501-503, annex building, Huaye building, No.1-3, Chumo new street, Xihua Road, Yuexiu District, Guangzhou City, Guangdong Province Patentee after: Guangdong Electric Power Research Institute of energy technology limited liability company Address before: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Co-patentee before: Guangdong Electric Power Research Institute of energy technology limited liability company Patentee before: ELECTRIC POWER RESEARCH INSTITUTE, GUANGDONG POWER GRID CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 501-503, annex building, Huaye building, No.1-3 Chuimao new street, Xihua Road, Yuexiu District, Guangzhou City, Guangdong Province 510000 Patentee after: China Southern Power Grid Power Technology Co.,Ltd. Address before: Room 501-503, annex building, Huaye building, No.1-3 Chuimao new street, Xihua Road, Yuexiu District, Guangzhou City, Guangdong Province 510000 Patentee before: GUANGDONG ELECTRIC POWER SCIENCE RESEARCH INSTITUTE ENERGY TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |