CN107167182A - A kind of signal regulating device suitable for Hydropower Unit test equipment - Google Patents
A kind of signal regulating device suitable for Hydropower Unit test equipment Download PDFInfo
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- CN107167182A CN107167182A CN201710497228.XA CN201710497228A CN107167182A CN 107167182 A CN107167182 A CN 107167182A CN 201710497228 A CN201710497228 A CN 201710497228A CN 107167182 A CN107167182 A CN 107167182A
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- 238000012360 testing method Methods 0.000 title claims abstract description 57
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 36
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The present invention relates to a kind of signal regulating device suitable for Hydropower Unit test equipment, including：Signal compensation module, surge protector, signal amplifier, wave filter and output format converter；Wherein, the external various actual measurement sensors of the input of the surge protector, output end is connected with the voltage signal inputs of the signal compensation module and the input of signal amplifier respectively；External now the checking signal of verification thermal compensation signal input of the signal compensation module, output end is connected with the input of the signal amplifier；The output end of the signal amplifier is connected with the wave filter, and the first signal output part of the wave filter is connected with the output format converter, the data acquisition device or data analysis set-up of the external Hydropower Unit test equipment of output format converter.By technical scheme, the signal to noise ratio of Hydropower Unit test equipment input signal can be improved.
Description
Technical field
The present invention relates to Hydropower Unit test equipment technical field, and in particular to one kind is applied to Hydropower Unit test equipment
Signal regulating device.
Background technology
In each stage of Hydropower Unit before and after the front and rear, equipment rehabilitation that formally puts into operation and before and after maintenance, it is required for
A series of unit performance experiment is carried out, to grasp unit performance, it is ensured that unit safety stable operation.Wherein, using very wide
General test method is to stability parameter (vibration, throw, the pressure fluctuation under the various operating modes of unit by different sensors
Deng) signal is acquired, then analyzed and researched, so as to obtain result of the test and propose that correlation technique is advised.
It is the most difficult also most to need the fidelity problem and noise that the problem solved is signal during signal transacting
Process problem, these problems directly influence true representation of the test signal for machine unit characteristic in operating condition of test, and then relation
To the correctness of whole test result analysis.Therefore, the present invention for early stage strengthen signal transmission, enhancing signal stabilization and
Had very important significance in terms of noise reduction, and then powerful guarantee is provided for the Data Analysis Services after unit experiment.
The content of the invention
In view of this, it is applied to Hydropower Unit it is an object of the invention to overcome the deficiencies of the prior art and provide one kind to survey
The signal regulating device of equipment is tried, to improve the signal to noise ratio of Hydropower Unit test equipment input signal.
To realize object above, the present invention is adopted the following technical scheme that：
A kind of signal regulating device suitable for Hydropower Unit test equipment, including：Signal compensation module, surge protection
Device, signal amplifier, wave filter and output format converter；Wherein,
The external various actual measurement sensors of input of the surge protector, output end respectively with the signal compensation module
Voltage signal inputs and signal amplifier input connection；The verification thermal compensation signal input of the signal compensation module
External now checking signal, output end is connected with the input of the signal amplifier；
The output end of the signal amplifier is connected with the wave filter, the first signal output part of the wave filter and institute
State the connection of output format converter, the data acquisition device or number of the external Hydropower Unit test equipment of output format converter
According to analytical equipment；
Wherein, the signal compensation module be used for according to it is various actual measurement sensors export measured signals transmission forms and
Transmission range, after sorting out to the measured signal for needing to compensate, introduces standard signal and is verified as existing ground checking signal, and root
The measured signal is compensated according to check results and categorization results.
Preferably, the signal regulating device suitable for Hydropower Unit test equipment, in addition to coefficient input module and
Liquid crystal display；The secondary signal output end of the wave filter is connected with coefficient input module, and the coefficient puts into the defeated of module
Go out end to be connected with the liquid crystal display；
The accuracy that the coefficient input module is used for the multi-channel data exported to the wave filter carries out inspection, and defeated
Go out to the liquid crystal display.
Preferably, the signal regulating device suitable for Hydropower Unit test equipment, in addition to current and voltage signals turn
Parallel operation, the output end and surge protector of the input of the current and voltage signals converter respectively with the signal compensation module
Output end connection, the output end of the current and voltage signals converter is connected with the input of the signal amplifier.
Preferably, the signal regulating device suitable for Hydropower Unit test equipment, in addition to power supply changeover device, it is described
The external 220V civil powers of input of power supply changeover device, the external various actual measurement sensors of output end；The power supply changeover device is used
In 220V civil powers are converted into 12V and 24V direct currents.
Preferably, the signal regulating device suitable for Hydropower Unit test equipment, in addition to overload protective device, it is described
The external 220V civil powers of overload protective device input, the external power supply changeover device of output end.
Preferably, the earth terminal ground connection of the overload protective device.
Preferably, the wave filter includes low pass filter, high-pass filter and bandpass filter.
Preferably, the surge protector is connected by aviation plug with the various actual measurement sensors.
Preferably, the earth terminal ground connection of the surge protector.
Preferably, the signal regulating device suitable for Hydropower Unit test equipment includes multiple mutually isolated data
Passage, the output signal of each actual measurement sensor carries out signal condition by each independent data channel.
The present invention uses above technical scheme, at least possesses following beneficial effect：
As shown from the above technical solution, this signal condition suitable for Hydropower Unit test equipment that the present invention is provided is filled
Put, there is provided signal compensation module, i.e., the transmission form and transmission range of the measured signal exported according to various actual measurement sensors,
After sorting out to the measured signal for needing to compensate, introduce standard signal and verified as existing ground checking signal, and tied according to verification
Fruit and categorization results are compensated to the measured signal；There is provided surge protector, surge protector (Surge
Protection Device) it is indispensable a kind of device in electronic equipment lightning protection, it can prevent due to misoperation
Sensor is surveyed to front end or rear end collection analysis equipment causes to damage；There is provided signal amplifier, i.e., carried out to tiny signal
Amplification, while not producing influence to its characteristics of signals, reaches that envelope eapsulotomy protects steady effect；There is provided wave filter, i.e., as desired
Filtering, takes out the environmental disturbances of intrinsic frequency, reduces noise and is mixed into the influence for measurement accuracy brought；There is provided output lattice
Formula converter, i.e., carry out signal condition after, in a variety of forms (including TCP/IP, serial ports 232/485, IEC101,102,103,
104 etc.) signal is exported, passes to the collecting device or analytical equipment of next stage.It is this applicable that the present invention is provided
In the signal regulating device of Hydropower Unit test equipment, actual measurement sensor output signal send to Hydropower Unit test equipment it
Before carried out a series of signal conditioning, improve the signal to noise ratio of Hydropower Unit test equipment input signal, enhance the anti-of signal
Interference performance, farthest reduces primary signal, is that the Data acquisition and issuance of follow-up Hydropower Unit test equipment is established
Basis.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
A kind of electricity for signal regulating device suitable for Hydropower Unit test equipment that Fig. 1 provides for one embodiment of the invention
Road schematic block diagram；
A kind of electricity for signal regulating device suitable for Hydropower Unit test equipment that Fig. 2 provides for one embodiment of the invention
Road schematic block diagram；
A kind of electricity for signal regulating device suitable for Hydropower Unit test equipment that Fig. 3 provides for one embodiment of the invention
Road schematic block diagram.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical scheme will be carried out below
Detailed description.Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are resulting on the premise of creative work is not made to be owned
Other embodiment, belongs to the scope that the present invention is protected.
Below by drawings and examples, technical scheme is described in further detail.
A kind of signal regulating device suitable for Hydropower Unit test equipment provided referring to Fig. 1, one embodiment of the invention,
Including：Signal compensation module 1, surge protector 2, signal amplifier 3, wave filter 4 and output format converter 5；Wherein,
The external various actual measurement sensors of input of the surge protector 2, output end respectively with the signal compensation mould
The input connection of the voltage signal inputs and signal amplifier 3 of block 1；The verification thermal compensation signal of the signal compensation module 1
External now the checking signal of input, output end is connected with the input of the signal amplifier 3；
The output end of the signal amplifier 3 is connected with the wave filter 4, the first signal output part of the wave filter 4
It is connected with the output format converter 5, the data acquisition dress of the external Hydropower Unit test equipment of output format converter 5
Put or data analysis set-up；
Wherein, the signal compensation module 1 is used for the transmission form of the measured signal exported according to various actual measurement sensors
And transmission range, after sorting out to the measured signal for needing to compensate, introduce standard signal and verified as existing ground checking signal, and
The measured signal is compensated according to check results and categorization results.
It is understood that for long-distance transmissions or with the transmission means being necessarily lost, 1 pair of signal compensation module
Initial signal is compensated, and in the hope of reducing initial signal to greatest extent, is reduced because of the measurement error that transmission belt is come.
As shown from the above technical solution, this signal condition suitable for Hydropower Unit test equipment that the present invention is provided is filled
Put, there is provided signal compensation module 1, i.e., the transmission form and transmission distance of the measured signal exported according to various actual measurement sensors
From, after sorting out to the measured signal for needing to compensate, introduce standard signal and verified as existing ground checking signal, and according to verification
As a result the measured signal is compensated with categorization results；There is provided the surge protector 2, (Surge of surge protector 2
Protection Device) it is indispensable a kind of device in electronic equipment lightning protection, it can prevent due to misoperation
Sensor is surveyed to front end or rear end collection analysis equipment causes to damage；There is provided signal amplifier 3, i.e., carried out to tiny signal
Amplification, while not producing influence to its characteristics of signals, reaches that envelope eapsulotomy protects steady effect；There is provided wave filter 4, i.e., as desired
Filtering, takes out the environmental disturbances of intrinsic frequency, reduces noise and is mixed into the influence for measurement accuracy brought；There is provided output lattice
Formula converter 5, i.e., carry out signal condition after, in a variety of forms (including TCP/IP, serial ports 232/485, IEC101,102,
103rd, 104 etc.) signal is exported, passes to the collecting device or analytical equipment of next stage.It is this that the present invention is provided
Suitable for the signal regulating device of Hydropower Unit test equipment, send Hydropower Unit test in actual measurement sensor output signal and set
A series of signal conditioning has been carried out before standby, the signal to noise ratio of Hydropower Unit test equipment input signal has been improved, enhances signal
Antijamming capability, farthest reduce primary signal, be the Data acquisition and issuance of follow-up Hydropower Unit test equipment
Lay a good foundation.
Referring to Fig. 2, it is preferable that the signal regulating device suitable for Hydropower Unit test equipment, in addition to coefficient is thrown
Enter module 6 and liquid crystal display 7；The secondary signal output end of the wave filter 4 is connected with coefficient input module, and the coefficient is thrown
The output end for entering module is connected with the liquid crystal display 7；
The accuracy that the coefficient input module 6 is used for the multi-channel data exported to the wave filter 4 carries out inspection, and
Export to the liquid crystal display 7.
It is understood that setting up coefficient input module 6 and liquid crystal display 7, i.e., all inputs are made in human-computer interaction interface
Signalling channel carries out inspection, and each channel signal quality and data are monitored in real time, signal in whole experiment process is ensure that
Stablize and data are effective.
Referring to Fig. 3, it is preferable that the signal regulating device suitable for Hydropower Unit test equipment, in addition to electric current electricity
Press signal adapter 8, the output end of the input of the current and voltage signals converter 8 respectively with the signal compensation module 1
Connected with the output end of surge protector 2, the output end of the current and voltage signals converter 8 and the signal amplifier 3
Input is connected.
Pair it is understood that setting up current and voltage signals converter 8, electric current and voltage signal can mutually switch, i.e.,
The different types of signal exported in sensor, can be changed, safety and stability, together according to rear end collection or analytical equipment demand
When improve the usable condition of this signal regulating device suitable for Hydropower Unit test equipment that the present invention is provided.
Preferably, the signal regulating device suitable for Hydropower Unit test equipment, in addition to power supply changeover device 9, institute
State the external 220V civil powers of input of power supply changeover device 9, the external various actual measurement sensors of output end；The power supply changeover device
9 are used to 220V civil powers being converted to 12V and 24V direct currents.
Preferably, the signal regulating device suitable for Hydropower Unit test equipment, in addition to overload protective device 10, institute
State the external 220V civil powers of the input of overload protective device 10, the external power supply changeover device 9 of output end.
It is understood that overload protective device 10 contains overcurrent protection function, it can prevent due to user's misoperation pair
Sensor is surveyed in front end or rear end collection analysis equipment causes to damage.
Preferably, the earth terminal ground connection of the overload protective device 10.
Preferably, the wave filter 4 includes low pass filter 4, high-pass filter 4 and bandpass filter 4.
Preferably, the surge protector 2 is connected by aviation plug with the various actual measurement sensors.
Preferably, the earth terminal ground connection of the surge protector 2.
Preferably, the signal regulating device suitable for Hydropower Unit test equipment includes multiple mutually isolated data
Passage, the output signal of each actual measurement sensor carries out signal condition by each independent data channel.
It is understood that multi channel signals are isolated, i.e., each road signal of actual measurement sensor output is played a protective role,
The influence that external interference and internal interference are caused to signal is reduced, measurement precision is improved.
In summary, this signal regulating device suitable for Hydropower Unit test equipment that the present invention is provided, there is provided
Signal compensation module 1, i.e., the transmission form and transmission range of the measured signal exported according to various actual measurement sensors, to needing to mend
After the measured signal repaid is sorted out, introduce standard signal and verified as existing ground checking signal, and according to check results and classification
As a result the measured signal is compensated；There is provided surge protector 2, (the Surge protection of surge protector 2
Device it is) indispensable a kind of device in electronic equipment lightning protection, can prevents because misoperation is surveyed to front end
Sensor or rear end collection analysis equipment cause to damage；There is provided signal amplifier 3, i.e., be amplified to tiny signal, simultaneously
Influence is not produced on its characteristics of signals, reach that envelope eapsulotomy protects steady effect；There is provided wave filter 4, i.e., filter as desired, take out
The environmental disturbances of intrinsic frequency, reduce noise and are mixed into the influence for measurement accuracy brought；There is provided output format converter
5, i.e., after signal condition is carried out, in a variety of forms (including TCP/IP, serial ports 232/485, IEC101,102,103,104 etc.)
Signal is exported, the collecting device or analytical equipment of next stage is passed to.It is this suitable for water power that the present invention is provided
The signal regulating device of unit test equipment, is carried out before actual measurement sensor output signal sends Hydropower Unit test equipment to
A series of signal conditioning, improves the signal to noise ratio of Hydropower Unit test equipment input signal, enhances the anti-interference energy of signal
Power, farthest reduces primary signal, is that the Data acquisition and issuance of follow-up Hydropower Unit test equipment is laid a good foundation.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance.Term " multiple " refers to
Two or more, unless otherwise clear and definite restriction.
Claims (10)
1. a kind of signal regulating device suitable for Hydropower Unit test equipment, it is characterised in that including：Signal compensation module,
Surge protector, signal amplifier, wave filter and output format converter；Wherein,
The external various actual measurement sensors of input of the surge protector, the electricity of output end respectively with the signal compensation module
Press the input connection of signal input part and signal amplifier；The verification thermal compensation signal input of the signal compensation module is external
Existing checking signal, output end is connected with the input of the signal amplifier；
The output end of the signal amplifier is connected with the wave filter, the first signal output part of the wave filter with it is described defeated
Go out format converter connection, the data acquisition device or data point of the external Hydropower Unit test equipment of output format converter
Analysis apparatus；
Wherein, the signal compensation module is used for transmission form and the transmission of the measured signal exported according to various actual measurement sensors
Distance, after sorting out to the measured signal for needing to compensate, introduces standard signal and is verified as existing ground checking signal, and according to school
Result and categorization results are tested to compensate the measured signal.
2. the signal regulating device according to claim 1 suitable for Hydropower Unit test equipment, it is characterised in that also wrap
Include coefficient input module and liquid crystal display；The secondary signal output end of the wave filter is connected with coefficient input module, described
The output end of coefficient input module is connected with the liquid crystal display；
The accuracy that coefficient input module is used for the multi-channel data exported to the wave filter carries out inspection, and export to
The liquid crystal display.
3. the signal regulating device according to claim 2 suitable for Hydropower Unit test equipment, it is characterised in that also wrap
Current and voltage signals converter is included, the input of the current and voltage signals converter is defeated with the signal compensation module respectively
The output end for going out end and surge protector is connected, output end and the signal amplifier of the current and voltage signals converter
Input is connected.
4. the signal regulating device according to claim 3 suitable for Hydropower Unit test equipment, it is characterised in that also wrap
Include power supply changeover device, the external 220V civil powers of input of the power supply changeover device, the external various actual measurement sensors of output end；
The power supply changeover device is used to 220V civil powers being converted to 12V and 24V direct currents.
5. the signal regulating device according to claim 4 suitable for Hydropower Unit test equipment, it is characterised in that also wrap
Include overload protective device, the external 220V civil powers of overload protective device input, the external power supply changeover device of output end.
6. the signal regulating device according to claim 5 suitable for Hydropower Unit test equipment, it is characterised in that described
The earth terminal ground connection of overload protective device.
7. the signal regulating device according to claim 1 suitable for Hydropower Unit test equipment, it is characterised in that described
Wave filter includes low pass filter, high-pass filter and bandpass filter.
8. the signal regulating device according to claim 1 suitable for Hydropower Unit test equipment, it is characterised in that described
Surge protector is connected by aviation plug with the various actual measurement sensors.
9. the signal regulating device according to claim 1 suitable for Hydropower Unit test equipment, it is characterised in that described
The earth terminal ground connection of surge protector.
10. the signal regulating device suitable for Hydropower Unit test equipment according to any one of claim 1~9, it is special
Levy and be, the signal regulating device suitable for Hydropower Unit test equipment includes multiple mutually isolated data channel, often
The output signal of the individual actual measurement sensor carries out signal condition by each independent data channel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710497228.XA CN107167182A (en) | 2017-06-26 | 2017-06-26 | A kind of signal regulating device suitable for Hydropower Unit test equipment |
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| CN201710497228.XA CN107167182A (en) | 2017-06-26 | 2017-06-26 | A kind of signal regulating device suitable for Hydropower Unit test equipment |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2400711C1 (en) * | 2009-07-06 | 2010-09-27 | Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России) | Strain-measuring transducer |
| CN202420521U (en) * | 2011-12-22 | 2012-09-05 | 上海聚星仪器有限公司 | General signal conditioning system |
| CN104374989A (en) * | 2014-11-29 | 2015-02-25 | 江西洪都航空工业集团有限责任公司 | Multi-channel signal conditioning board |
| CN104614011A (en) * | 2013-11-05 | 2015-05-13 | 中国科学院寒区旱区环境与工程研究所 | Frozen soil test data acquiring and processing system |
| CN204495374U (en) * | 2015-04-14 | 2015-07-22 | 上海同磊土木工程技术有限公司 | Full-automatic synchronous data sampling instrument |
| CN206876222U (en) * | 2017-06-26 | 2018-01-12 | 国家电网公司 | A kind of signal regulating device suitable for Hydropower Unit test equipment |
-
2017
- 2017-06-26 CN CN201710497228.XA patent/CN107167182A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2400711C1 (en) * | 2009-07-06 | 2010-09-27 | Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России) | Strain-measuring transducer |
| CN202420521U (en) * | 2011-12-22 | 2012-09-05 | 上海聚星仪器有限公司 | General signal conditioning system |
| CN104614011A (en) * | 2013-11-05 | 2015-05-13 | 中国科学院寒区旱区环境与工程研究所 | Frozen soil test data acquiring and processing system |
| CN104374989A (en) * | 2014-11-29 | 2015-02-25 | 江西洪都航空工业集团有限责任公司 | Multi-channel signal conditioning board |
| CN204495374U (en) * | 2015-04-14 | 2015-07-22 | 上海同磊土木工程技术有限公司 | Full-automatic synchronous data sampling instrument |
| CN206876222U (en) * | 2017-06-26 | 2018-01-12 | 国家电网公司 | A kind of signal regulating device suitable for Hydropower Unit test equipment |
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