CN107796561A - Pressure gauge batch measurements verification system and method - Google Patents
Pressure gauge batch measurements verification system and method Download PDFInfo
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- CN107796561A CN107796561A CN201710955017.6A CN201710955017A CN107796561A CN 107796561 A CN107796561 A CN 107796561A CN 201710955017 A CN201710955017 A CN 201710955017A CN 107796561 A CN107796561 A CN 107796561A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
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Abstract
The present invention relates to a kind of pressure gauge batch measurements verification system and method, prepressing device, media Containers, digital precision pressure meter, precompressed hand pump, multiple first stop valves, multiple second stop valves, multiple tested meter connectors including being connected on pressure piping are connected with multiple single table fine setting hand pumps, control system with collection key, control unit with prepressing device；Data Enter unit is used for typing checklist and digital precision pressure meter information, and divides the calibrating point of checklist automatically according to checklist information；Data acquisition unit is connected by gathering key with digital precision pressure meter, for gathering the real-time pressure data information of digital precision pressure meter；Data processing unit is used to analyze and the data message of processing data collecting unit collection.The present invention solve existing pressure gauge metering calibrating efficiency is low, can not realize digitlization, it is intelligent with mass, the problems such as error introducing probability is big, and the problem of eliminate existing calibration method artificial pro-active intervention.
Description
Technical field
The invention belongs to measurement verification field, more particularly to a kind of pressure gauge batch measurements verification system and method.
Background technology
Existing pressure gauge measurement and examination method is the meter by single tested pressure gauge information solicitation into papery original record
Calculate and fill in the limits of error of tested precision pressure gauge, maximum allowable hysterisis error etc.；Fill in standard (including piston type
Pressure gauge, digital precision pressure meter, pressure controller etc.) relevant information is into papery original record；Single tested pressure gauge
Effectively it is connected with standard, respectively by standard pressure-loaded to each calibrating point, to checklist according to its scale division value
1/5th carry out estimating reading, and each point carries out rapping the reading twice before and after watchcase respectively, carries out the institute that paper record is each put
There are data, calculating the checklist maximum error of indication, maximum hysterisis error, maximum after the completion of data record raps pointer displacement amount,
Information is calculated by more than to be compared with information such as the theoretical maximum allowable errors of checklist, judges the metering inspection of tested pressure gauge
Determine result.Original record is subjected to signature archive again, the effective information of original record is entered into calibration certificate, and (verification result leads to
Know book) electronic stencil in generate digital certificates, then authorize printed.
Problems be present in the above method：
First, miscellaneous original record writing, it is a main problem for influenceing its measurement verification efficiency.Due to writing
More, calculating is more, and human factor introduces error or the probability of mistake is also very big.
Secondly, index lattice for each scale division value 1/5th estimate reading, and difficulty is larger, and one that error introduces
Important sources.
Again, caused by the personal habits of verification worker, for measurement result in limit of error point (limits of error)
The situation of " looking for " measurement result is also to influence a key factor of final metric results.
Finally, metering process can not realize that digitlization, intelligent and mass are also hinder pressure magnitude transmission one
Bottleneck, and a key factor for causing existing pressure measurement to belong to labor intensive present situation.
The content of the invention
The invention provides a kind of pressure gauge batch measurements calibration method and system, solves existing pressure gauge metering inspection
Determine that efficiency is low, can not realize digitlization, intelligent introduce the problems such as probability is big with mass, error, and eliminates existing calibrating
The problem of method artificial pro-active intervention.
The technical solution of the present invention is to provide a kind of pressure gauge batch measurements verification system, and it is characterized in that：
Including be connected on pressure piping prepressing device 1, media Containers 2, digital precision pressure meter 3, precompressed hand pump 4, multiple first
Stop valve 5, multiple second stop valves 51, multiple tested meter connectors 6 and multiple single table fine setting hand pumps 8；
Also include control system 10 and collection key 9, each corresponding first stop valve 5, one second of tested meter connector 6
The single table fine setting hand pump 8 of stop valve 51, one and a collection key 9；
Above-mentioned control system 10 includes control unit, Data Enter unit, data acquisition unit and data processing unit；
Above-mentioned control unit is connected with prepressing device, for controlling the regulating system pressure of prepressing device 1；Above- mentioned information typing
Unit is used for typing checklist and digital precision pressure meter information, and divides the calibrating of checklist automatically according to checklist information
Point；Above-mentioned data acquisition unit is connected by gathering key with digital precision pressure meter, for gathering the reality of digital precision pressure meter
When pressure data information；Above-mentioned data processing unit is used to analyze and the data message of processing data collecting unit collection.
Second stop valve 51 is used for the break-make for controlling tested meter connector 6, because pressure gauge belongs to stem-winder, easily sends out
Raw mechanical failure, so as to cause leakage.So situation if there is the leakage of single table, it is possible to realize easily single table isolation and
The measurement verification process of other checklists of whole batch is not influenceed.These stop valves can to whole pipeline realize segmentation every
From the maintaining for pipeline produced problem and pipeline provides more solutions.Coordinate staged isolation in addition
So that fine setting work of single table fine setting hand pump 8 for single checklist is more efficient.
Preferably, decompression protection valve is also included in above-mentioned pressure piping.
Preferably, above-mentioned prepressing device is vavuum pump or compression pump.
The present invention also provides a kind of pressure gauge batch measurements based on a kind of above-mentioned pressure gauge batch measurements verification system
Calibration method, comprise the following steps：
1) by range classification checklist, pressure gauge batch is arranged on after the checklist of same range section is carried out into visual examination
In verification system；
2) the checklist information of Data Enter unit typing difference installation site；
3) digital precision pressure meter in Data Enter unit automatic identification pressure gauge batch verification system, digital essence is judged
Whether the information of close pressure gauge matches with checklist, if digital precision pressure meter matches with checklist, automatic input numeral
Precision pressure gauge information；Otherwise, digital precision pressure meter, repeat step 3 are changed)；
4) the typing information of existing vertification regulation and checklist, each checklist of Data Enter automatic cell generation are combined
No data precision pressure gauge original record, and generate the calibrating point of checklist；For the checklist of non-standard range, draw manually
Divide input calibrating point；
5) pressure in pressure gauge batch verification system pressure piping is adjusted near calibrating point by prepressing device；Again
Pressure in verification system is adjusted to by calibrating point by precompressed hand pump, single table fine setting hand pump is adjusted again, makes each checklist pair
Pin is to examining and determine a little；
Checklist is carried out to table, each calibrating point carries out each tested to table, data acquisition unit collection twice every time
Each calibrating point of table to corresponding digital precision pressure meter data after table, respectively obtains this digital precision pressure for examining and determine point twice
What the data of power table and its calibrating were put raps pointer displacement amount；
6) after all calibrating points of checklist have been examined, all data in data acquisition unit are preserved, as initial original
Begin record；
7) data processing unit carries out data processing to initial original record, enters according to data pattern as defined in vertification regulation
The row revision of the convention, the amendment data to match with vertification regulation are obtained, as final original recorded data；
8) data processing unit is carried out to process, the backhaul data of the amendment data of each calibrating point of each checklist
Analysis, obtains the actual worst error and hysterisis error of each calibrating point of checklist, with reference to the original typing information of checklist
In the limits of error and maximum allowable hysterisis error, be compared, judge verification result, if qualified, complete calibrating, it is raw
Into final original record, wait to veritify；If it is unqualified and can not adjusting, indicate unqualified reason, then complete calibrating, generate final former
Begin record, waits to veritify；If it is unqualified but can adjusting, next group validation program is entered after adjusting；
9) final original record information is veritified, completes to veritify, generate copending calibration certificate, it is most final former at last
Begin to record and copending calibration certificate carry out the preservation of electronics shelves and exported, final original record is printed and carries out papery archive,
Copending calibration certificate uploads the metering management system of metrological service, and work is completed.
Step 7) is specially：Provide to combine initial original record according to vertification regulation, by numeral essence in initial original record
The data of close pressure gauge are corresponding to each corresponding calibrating point, and the revision of the convention is in the data of checklist corresponding to the calibrating point, checklist reading
Number is that five/one division value carries out data processing according to the principle of vertification regulation, obtains the data to match with vertification regulation.
Above-mentioned checklist information includes calibrating date, temperature, humidity, censorship unit, tested table name, factory number, system
Make business, measurement range, class of accuracy, scale division value, calibrating medium, visual examination；
The information of digital precision pressure meter includes title, model, measurement range, manufacturer, class of accuracy, certificate volume
Number, the term of validity.
Preferably, during step 2) typing checklist information, the identical information with a batch of checklist is disposably united
One typing.
Preferably, step 2) also include judge checklist information whether the complete step of typing.
The beneficial effects of the invention are as follows：
1st, pressure gauge metering digitlization, intelligent, mass calibrating are realized, greatly improves efficiency, greatly
Shorten the time-consuming of time-consuming link in pressure gauge metering verification process, greatly played measurement verification personnel in measurement verification
During subjective initiative.
2nd, verification result is accurate, removes the influence of subjective determination；
For in qualified and unqualified critical point checklist, traditional detection method, measurement verification personnel can go " looking for ",
It is subjective to go for qualified or look for and not conforming to because seeing standard i.e. digital precision pressure meter data and checklist data simultaneously
Lattice.And the present invention avoids the generation of this case, checklist avoids to directly point collection key, progress data acquisition after pin
Influence in terms of this subjective determination.
3rd, it is simple to operate
For during measurement verification need adjust reset valve, to after the light and handy pointer of checklist to pin to standard indicating bit
Put press collection key this point data can be gathered, again after light and handy pointer again to checklist to pin to standard indicating positions again
Data acquisition can be carried out to the light and handy pointer displacement of this point by pressing collection key.Database preparation generation after having examined a little
Original record.People is veritified to complete to automatically generate copending certificate after veritifying.
4th, strong adaptability
Do not limited for the specifications and models of pressure gauge, the old and new's degree, recognizable degree etc., visual examination is qualified, naked eyes
Readable, joint model, dial plate size, dial reading unit etc. have extremely strong adaptability.
5th, original record, it is abundant in content
Avoid it is unqualified after the checklist original record of adjusting again it is in disorder because a collection of inspection is the same as many checklists of model
Reason, so to need to do before unqualified checklist adjusting once complete measurement verification (in military project model task it is general all
Need to trace, initial data can be looked into), this can help measurement verification personnel all over the number of non-compliances evidence for completely having record
Whether this checklist of intuitive judgment is adjustable, how to adjust.The possibility of adjusting in place greatly increases.
Not shown simply original according to as hiding data for the number of non-compliances of checklist qualified after adjusting in addition
Adjusting reason is shown in record, number of non-compliances evidence can recall when will not thus causing the disorder of data, but need.
It is more humane, rationalize, standardization.
6th, high safety
Original record and certificate for generation can not be changed in addition to administrator right, and all data are all first-hand numbers
According to preferably embodying and measure the solemn sacred one side of this industry.
Brief description of the drawings
Fig. 1 is pressure gauge batch measurements verification system schematic diagram；
Fig. 2 is control system flow chart of data processing figure；
Fig. 3 is pressure gauge batch measurements calibration method flow chart；
Fig. 4 is that original record inquires about schematic diagram.
Reference is in figure：1- prepressing devices, 2- media Containers, 3- digital precision pressure meters, 4- manual fine-tuning precompressed
Hand pump, the stop valves of 5- first, the stop valves of 51- second, 6- joints, 7- decompression protection valves, the mono- table fine setting hand pumps of 8-, 9- collection keys,
10- control systems, 11- printers.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
It will be seen from figure 1 that the verification system of the present embodiment include being successively set on prepressing device 1 on pressure piping,
Media Containers 2, digital precision pressure meter 3, manual fine-tuning precompressed hand pump 4, decompression protection valve 7, in addition to the first stop valve 5 and
Two stop valves 51, tested meter connector 6, single table finely tune hand pump 8 and gather key 9, and the tested meter connector 6 in the present embodiment is checklist
Clamping device be five, i.e., can once access the equal precision pressure gauge of five ranges simultaneously and carry out measurement verification, can be with
According to the tested meter connector number of increase is actually needed, each checklist corresponds to 5, second stop valves of first stop valve
51st, a single table fine setting hand pump 8 and a collection key 9；Also include for controlling the control system of whole system work and being used for
Printing papery simultaneously retains the printer of original record.
Control system includes control unit, Data Enter unit, data acquisition unit and data processing unit；
Control unit is connected with prepressing device, for controlling prepressing device regulating system pressure；Data Enter unit is used for
Typing checklist and digital precision pressure meter information, and the calibrating point of checklist is divided according to checklist information automatically；Data are adopted
Collection unit is connected by gathering key with digital precision pressure meter, and the real-time pressure data for gathering digital precision pressure meter is believed
Breath；Data processing unit is used for the data message of analyze data collecting unit collection.
Control unit controls prepressing device to carry out Self-pressurizing agri to the pressure of verification system according to each calibrating point or let out
Pressure, pressure in whole pressure piping is set to reach as defined in calibrating point near pressure value.Solve due in pipeline pressure-bearing cavity compared with
When big, manual squeeze time is long or the problem of manual precompressed difficulty (when precompressed cavity is excessive, squeeze time in short-term, manual precompressed
It is very laborious；When precompressed cavity is too small, squeeze time is long, manual precompressed is relatively saved the strength).For negative pressure metering calibrating be present
Gas medium device, prepressing device are a vavuum pump, are pressurization during rotating forward, to vacuumize ((- 0.1~6) MPa gas during reversion
Object table).
The calibrating medium of measurement verification system can be gas, water or oil, when it is gas to examine and determine medium, media Containers 2
Pressure source is provided by whole system of nitrogen cylinder；When it is water to examine and determine medium, media Containers are using aqueous medium container as whole system
Pressure source is provided；When it is oily to examine and determine medium, media Containers provide pressure source using oil medium container as whole system.
Digital precision pressure meter, it is the measurement criteria of the system for the core component of the verification system.This table passes through collection
Key is connected with the data acquisition unit in control system, the normal data of the real-time pressure for measuring whole pressure system, number
Gather the data of digital precision pressure meter 3 in real time according to collecting unit.
According to the model of each checklist, range, the difference of medium is examined and determine.The present embodiment select 0.05 grade can cover (-
0.1~100) digital precision pressure meter of MPa gamut section is as standard so that the verification system meets：Examine and determine pressure
For -0.1~100MPa, calibrating medium is 1.0 grades of oil, water and gas and the measurement verification of the precision pressure gauge of ratings above.
According to the actual use situation of checklist, it is determined that calibrating medium and standard, when checklist is gas meter, this is examined
Determine the supporting of system and be arranged to (- 0.1~6) MPa gas containers, standard covering (- 0.1~6) MPa gamuts；Work as checklist
For water meter when, the supporting of this verification system is arranged to (0~100) MPa hydraulic pressure containers, standard covering (0~100) MPa full doses
Journey；When checklist is oil meter, the supporting of this verification system is arranged to (0~100) MPa oil pressure estrades, standard covering (0~
100) MPa gamuts.
The effect of manual fine-tuning precompressed hand pump is that the standard pressure of whole system is more accurately adjusted after prepressing device precompressed
Numerical value of the force data closer to calibrating point.
First and second stop valve, for the adjustment and protection to whole system function, for adjusting the quantity of checklist,
There is the bad situation of a certain position seals in device, and this position is isolated with whole system, protects positive system normal operation.
Protection of the effect of decompression protection valve mainly to whole system, standard scale and checklist, if due to maloperation
When causing whole system pressure more than tested pressure gauge maximum range 104%, this device releasing pressure automatically, currently set when pressure is less than
Put pressure 90% when be automatically stopped pressure release.
Single table finely tunes hand pump, and mainly corresponding tested pressure gauge is used table regulation pressure.
Gather key, mainly number of the control data collecting unit to the digital precision pressure meter of correspondence position corresponding calibrating point
According to being acquired.
Printer, it is mainly used in printing the original record that papery is retained.
Specific calibration operation process is as shown in Figure 3：
After range classification checklist, to being arranged on present invention inspection after the checklist progress visual examination of same range section
Determine in the snap joint of system, fill or be underfilled with tested position (closing being underfilled with without folder checklist first and second
Stop valve) it can carry out.
Verification worker is logged in by safety verification or password password is examining and determine operator interfaces login system, and (Admin Account is this
Unit, which obtains pressure measurement credentials, can carry out testing person's information whole typing of this work, a password of people one).
Data Enter
After the completion of login, the Data Enter unit of control system according to clamping position one by one typing clamping on this device
Checklist information, while each checklist of typing is in the corresponding loading position of this device.In order to ensure complete typing checklist
Information, occurs without information omission, and control system is entered row information input in the form of pop-up dialogue box, sets drop-down menu, preserved
The information of typing before in follow-up Input Process for being selected.Same batch carries out the tested of measurement verification simultaneously
The identical information of table can disposably unify input.Data Enter unit is sentenced to checklist Data Enter integrality automatically
It is disconnected, omitted if there is information, system prompt side information, supplement can completely carry out further work automatically.
After checklist Data Enter is completed, Data Enter unit automatic identification standard is digital precision pressure meter, record
Enter digital precision pressure meter information, digital precision pressure meter information is after each digital precision pressure meter censorship completion by numeral
Precision pressure gauge administrator interfaces are logged in and are updated.Data Enter unit judges number of this batch checklist if appropriate for clamping
Word precision pressure gauge (is connected, directly read digital precision pressure meter information) with this verification system, if mismatched, prompts to change
Digital precision pressure meter.
Change and complete, matched again, matching completes that the nothing of each corresponding clamping position checklist can be automatically generated
Data precision pressure gauge original record, and the calibrating point of checklist is generated, the calibrating point for nonstandard range section can be carried out
Division calibrating point manually.
The pattern of data inputting is mainly based on the data inputting pattern of calibration certificate, in order to preferably coordinate existing metering
The development of technology, using the data inputting pattern of calibration certificate as auxiliary (preliminary data typing pattern), in case particular/special requirement uses.
Gathered data
By the preliminary precompressed of prepressing device, then manually pressure in system is adjusted to by fine setting precompressed hand pump exactly
Point is examined and determine, single table fine setting hand pump is adjusted again, each checklist to examining and determine a little, is arrived pin after pointer is rapped to checklist to pin
Standard indicating positions examines fixed position, and pressing collection key can be acquired to this digital precision pressure meter data, again
Rap after pointer again to checklist to pin to standard indicating positions, press collection key again, gather digital precision pressure meter data；
(each calibrating point needs twice for the first time can to rap pin for the second time without rapping on pin to calibrating point.
Data of digital precision pressure meter twice corresponding to each checklist of system acquisition, respectively obtain the digital precision pressure of this calibrating point
What the data of power table and its calibrating were put raps pointer displacement amount).
Because checklist and digital precision pressure meter are arranged on same pipeline, checklist and digital precision pressure meter by
Real-time pressure it is identical, so by checklist to pin to by it is cautious when, the data message of the digital precision pressure meter collected is i.e.
It is corresponding checklist in the true pressure value of the point, the data acquisition of each calibrating point is twice (to checklist after rapping every time
Again to a calibrating point data of collection, the difference of data is to rap pointer displacement amount twice), it is determined that this time measurement verification calibrating point
Data and this calibrating point rap pointer displacement.Data (initial original record) are retained based on this measurement verification data
(to the demand of measurement verification result retrospect).
If checklist Real-time Error (Real-time Error refer to tested list index indicating value and the point true pressure value it
Difference) be more than the theoretical maximum allowable error of checklist, then the reading numerical value of checklist is directly entered, gathers corresponding numeral
Precision pressure gauge data；When the readings for reading checklist gather the data of digital precision pressure meter simultaneously, if there is
The process and point of backhaul is misaligned and deviation is larger, then be considered as that checklist hysterisis error is overproof, and data inputting is as underproof
Data traceability uses.
Correct data
In order to existing vertification regulation JJG52-2013《Flexible member formula general purpose pressure gauge, pressure vacuum meter and vacuum meter
Vertification regulation》Match, data processing unit carries out data processing to original raw data obtained by measurement verification.Advised according to calibrating
Journey regulation combines initial original record, and the data of digital precision pressure meter in initial original record are corresponding to each corresponding calibrating
Point, the revision of the convention checklist corresponding to the calibrating point data, be detected meter reading according to five/one division value reading principle carry out
Data processing.Obtain the data to be matched with vertification regulation.It is portion for 1/10th of five/one division Value Data, presses
According to Figure correction principle carry out the revision of the convention, for limits of error critical point the point tolerance revision of the convention according to more than maximum allowable mistake
The error of difference need to enter one, ensure that the result of this point is shown as unqualified, for the error less than the limits of error according to number
Word revision of the convention principle need to enter one, and enter one for it is overproof when not-carry, ensure this point result be shown as qualified.
Data processing
Typing information of the data processing unit automatically to checklist calculates, and calculating the checklist theoretical maximum allows to miss
Poor and maximum hysterisis error, pass through the revised meter of worst error and hysterisis error in real time of each calibrating point to checklist
Point counting is analysed, then the final calibrating conclusion of the checklist is judged compared with the limits of error and maximum hysterisis error.Conclusion
Be divided into it is qualified with unqualified two kinds.
Result of determination clicks directly on for qualified checklist and completes key, completes the automatic signature of verification worker, tested for this
The end-of-job of the verification worker of table.
Result of determination be underproof checklist, it is necessary to calibrating data and verification process situation carry out synthetic determination,
Determine unqualified reason, judge whether can with adjusting, can not adjusting, indicate unqualified reason, click on complete key, complete verification worker
Automatic signature, for the end-of-job of the verification worker of the checklist；If can adjusting, indicate adjusting before unqualified reason, enter
Enter next round measurement verification program.
Draw calibrating conclusion
Veritify operator interfaces log in verifier's account, logged in by safety verification --- password password logs in, typing personnel with
Verification worker is identical, a password of people one.Original record to be veritified can line up to show (the original record as verification worker after logging in
Not in interface display of the same personnel as verifier), the point after veritifying original record and veritifying to belonging to veritification scope
Hit and complete key, original record verifier automatic signature completes whole original record contents, automatically generates certificate (verification worker verifier
Sign electronically copending), it is stored under the certificate file to be uploaded folder under the file of specified partition, while original record preserves
Printer prints a progress papery archive of final version original record.
This verification system sets the form of two kinds of original records, and a kind of is the data record of most original, with the survey of this device
The initial original record carried out based on amount method；Another be by this record based on the data of collection are carried out with ten/
The one division value reading revision of the convention, is then converted, changes into the data record to match with existing code again.In order to existing inspection
Set pattern journey matches, now using latter data recording mode as the data pattern in final original record.
In terms of the data record of system, the pattern of this system is retains, display, retains being advised with existing calibrating of finally determining
The data recording mode that journey matches, while the data record of most initial is subjected to electronic edition retention in the form of hiding document.
To ensure the demand of checklist retrospect, initial original record and final original can be inquired about by inputting the typing information of checklist
Begin record, as shown in Figure 4.
Mainly standard is gathered in the initially initial data typing of original record of the invention using checklist indicating value as calibrating point
The indicating value using standard in the data of device, with existing precision pressure gauge vertification regulation gathers the number of checklist as calibrating point
According to different.
Standard in existing vertification regulation also includes piston gage, due to the functional characteristic of piston gage,
Reference pressure value corresponding with counterbalance mass can only be produced, if the calibration method in the selection present invention, piston gage are
Reading can not be carried out.
And among measurement and examination method of the present invention, using standard be digital precision pressure meter as standard, eliminate reading
During habitual reading introduce error, in the prior art due to the rule for read data of pressure gauge be by scale division value ten/
One carries out reading, and due to reasons such as sense organ, personal habits, the reading to each indexing lattice is one and the larger mistake of introducing be present
One of difference estimates reading, and the inventive method is by the indicator of checklist to (tenth of the point degree being not present in a standard scribe line position
Estimate reading), go to gather the data of standard, this data is one and is not present and estimates one of reading more accurately data.Especially exist
During error threshold point, the advantage of this method is more obvious, and this method can more be accurately obtained judgement information.
Claims (8)
- A kind of 1. pressure gauge batch measurements verification system, it is characterised in that：Including the prepressing device being connected on pressure piping (1), media Containers (2), digital precision pressure meter (3), precompressed hand pump (4), multiple first stop valves (5), multiple second cut-offs Valve (51), multiple tested meter connectors (6) and multiple single table fine setting hand pumps (8)；Also include control system (10) and collection key (9), be each detected corresponding first stop valve (5) of meter connector (6), one Second stop valve (51), a single table fine setting hand pump (8) and a collection key (9)；Second stop valve (51) is used for the break-make for controlling tested meter connector (6)；The control system (10) includes control unit, Data Enter unit, data acquisition unit and data processing unit；Described control unit is connected with prepressing device, for controlling prepressing device (1) regulating system pressure；Described information typing list Member is used for typing checklist and digital precision pressure meter information, and divides the calibrating point of checklist automatically according to checklist information； The data acquisition unit is connected by gathering key with digital precision pressure meter, for gathering the real-time pressure of digital precision pressure meter Force data information；The data processing unit is used to analyze and the data message of processing data collecting unit collection.
- A kind of 2. pressure gauge batch measurements verification system according to claim 1, it is characterised in that：In the pressure piping Also include decompression protection valve.
- A kind of 3. pressure gauge batch measurements verification system according to claim 1 or 2, it is characterised in that：The pre- press fitting It is set to vavuum pump or compression pump.
- A kind of a kind of 4. pressure gauge batch measurements calibrating side of pressure gauge batch measurements verification system based on described in claim 1 Method, it is characterised in that：Comprise the following steps：1) by range classification checklist, examined and determine pressure gauge batch is arranged on after the checklist progress visual examination of same range section In system；2) the checklist information of Data Enter unit typing difference installation site；3) digital precision pressure meter in Data Enter unit automatic identification pressure gauge batch verification system, judges digital precision pressure Whether the information of power table matches with checklist, if digital precision pressure meter matches with checklist, automatic input digital precision Pressure gauge information；Otherwise, digital precision pressure meter, repeat step 3 are changed)；4) the typing information of existing vertification regulation and checklist, the nothing of each checklist of Data Enter automatic cell generation are combined Data precision pressure gauge original record, and generate the calibrating point of checklist；For the checklist of non-standard range, divide manually defeated Enter to examine and determine a little；5) pressure in pressure gauge batch verification system pressure piping is adjusted near calibrating point by prepressing device；Pass through again Pressure in system is adjusted to examine and determine point by precompressed hand pump, adjusts single table fine setting hand pump again, makes each checklist to pin to calibrating Point；Checklist is carried out to table, each calibrating point carries out gathering each checklist to table, data acquisition unit twice every time Each calibrating point to corresponding digital precision pressure meter data after table, respectively obtains this digital precision pressure meter for examining and determine point twice Data and its calibrating point rap pointer displacement amount；6) after all calibrating points of checklist have been examined, all data in data acquisition unit are preserved, as initial original note Record；7) data processing unit carries out data processing to initial original record, is repaiied according to data pattern as defined in vertification regulation About, the amendment data to match with vertification regulation are obtained, as final original recorded data；8) process, backhaul data minute of the data processing unit to the amendment data of each calibrating point of each checklist Analysis, obtains the actual worst error and hysterisis error of each calibrating point of checklist, in the original typing information with reference to checklist The limits of error and maximum allowable hysterisis error, be compared, judge verification result, if qualified, complete calibrating, generation Final original record, wait to veritify；If it is unqualified and can not adjusting, indicate unqualified reason, then complete calibrating, generation is final original Record, waits to veritify；If it is unqualified but can adjusting, next group validation program is entered after adjusting；9) final original record information is veritified, completes to veritify, generate copending calibration certificate, most final original note at last Record and copending calibration certificate carry out the preservation of electronics shelves and exported, and final original record is printed and carries out papery archive, pending The metering management system that calibration certificate uploads metrological service is criticized, work is completed.
- A kind of 5. pressure gauge batch measurements calibration method according to claim 4, it is characterised in that：Step 7) is specially： Provide to combine initial original record according to vertification regulation, the data of digital precision pressure meter in initial original record are corresponding to each Corresponding calibrating point, in the data of checklist corresponding to the calibrating point, tested meter reading is the revision of the convention according to the principle of vertification regulation Five/one division value carries out data processing, obtains the data to match with vertification regulation.
- 6. pressure gauge batch measurements calibration method according to claim 5, it is characterised in that：The checklist information includes Examine and determine the date, temperature, humidity, censorship unit, tested table name, factory number, manufacturer, measurement range, class of accuracy, point Angle value, calibrating medium, visual examination；The information of digital precision pressure meter includes title, model, measurement range, manufacturer, class of accuracy, certificate number, had The effect phase.
- 7. pressure gauge batch measurements calibration method according to claim 6, it is characterised in that：Step 2) typing checklist is believed During breath, the identical information with a batch of checklist carries out disposable unified typing.
- 8. pressure gauge batch measurements calibration method according to claim 7, it is characterised in that：Step 2) also includes judging quilt Examine table information whether the complete step of typing.
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| CN201710955017.6A CN107796561A (en) | 2017-10-13 | 2017-10-13 | Pressure gauge batch measurements verification system and method |
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Application publication date: 20180313 |