CN205861281U - Meter locale calibration system - Google Patents
Meter locale calibration system Download PDFInfo
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- CN205861281U CN205861281U CN201620808180.0U CN201620808180U CN205861281U CN 205861281 U CN205861281 U CN 205861281U CN 201620808180 U CN201620808180 U CN 201620808180U CN 205861281 U CN205861281 U CN 205861281U
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Abstract
The utility model discloses a kind of meter locale calibration system, including being calibrated instrument, tonometry sensing unit, Measurement and Data Processing and result display unit and universal testing machine.By using scene, described instrument school Barebone, can calibrate being calibrated instrument at the construction field (site), the instrument solving to carry out transporting again after calibrating indicating instrument needs to dismantle job site instrument laboratory at laboratory removes and installs loaded down with trivial details, carrying inconvenience, the problem of the normal production of censorship cycle length impact；Calibrate respectively also without by the instrument sensing detection device and meter displaying device that are calibrated instrument, the problem of overall accuracy after can solving to assemble simultaneously.
Description
Technical field
This utility model relates to oilfield, a kind of oil field meter locale calibration system, particularly a kind of oil
The weight indicator in field/draw-bar donamometer field calibration system.
Background technology
Weight indicator/draw-bar donamometer be instruction and record tool hanging load and drilling and the pressure of the drill change a kind of instrument, be mainly used in oil,
During rig, the rig of workover rig or workover rig operation in geological prospecting.At present, weight indicator/draw-bar donamometer is carried out
The mode of measurement and calibration mainly has laboratory investment and field calibration two ways, but field calibration mode is not yet answered
With.
The laboratory investment of weight indicator/draw-bar donamometer mainly passes through examination after weight indicator/draw-bar donamometer dismounting in the lab
The machine of testing adds the mode of load to be completed, and which has the disadvantage that instrument removes and installs loaded down with trivial details and carrying inconvenience, and the censorship cycle is long
Impact is normal to be produced；Laboratory is the hydrostatic sensor to weight indicator/draw-bar donamometer and indicates device to calibrate respectively, and then affects group
Overall accuracy after dress.
Meanwhile, traditional calibrating mode that oil field uses is to carry out adding load by lifting large-tonnage standard test weight, then with
Tested instrument show value is compared, traditional calibrating mode has the disadvantage that counterweight quantity is big, conveying people put into big,
Field condition is required, and high, installation operates inconvenience, the time-consuming length of calibration, and needs stopping drilling well/workover treatment impact to produce.
Summary of the invention
In view of this, this utility model provides a kind of meter locale calibration system, to solve the calibration of described Instrumentation Laboratory
Problem with described classical calibration fashion.
This utility model provides a kind of meter locale calibration system, including being calibrated instrument, tonometry sensing unit, survey
Amount data process and result display unit.
It is calibrated instrument；
Described tonometry sensing unit, installs on a steel cord, for measuring steel wire rope tension, and pulling force data is sent out
Deliver to Measurement and Data Processing and result display unit；
Described Measurement and Data Processing and result display unit, be connected with described tonometry sensing unit, receives described
Power measures the pulling force data that sensing unit sends, and described pulling force data is converted into normal loading value, and shows measurement data
Result；
Described universal testing machine, is connected with described steel wire rope, for simulated field load condition；
The described instrument that is calibrated also includes:
Instrument sensing detection device, is fixed on immovable one end on derrick and is connected, detect with described with steel wire rope
The pulling force that tonometry sensing unit is identical；
Meter displaying device, is connected with instrument sensing detection device, is used for showing that described instrument sensing detection device detects
The pulling force data arrived.
Described tonometry sensing unit, including:
Force-measuring sensing device, is arranged on and is calibrated on the steel wire rope that instrument concatenates with described, opening for measuring steel wire rope
Power；
Fixture, is used for fixing on a steel cord described force-measuring sensing device；
Communication device, is connected respectively with result display unit with described force-measuring sensing device and Measurement and Data Processing, is used for
The pulling force data that described force-measuring sensing device detects is sent to described Measurement and Data Processing and result display unit；
Preferably, described force-measuring sensing device is side-compression force cell, is arranged on and is calibrated the steel that instrument concatenates
In cord, for the tension force of measuring steel wire rope, measure scope 0～300kN, accuracy 0.5 grade；Described side-compression force cell
For crystal tension pick-up or strain resistor sensor；
Preferably, described fixture includes fixture and fastening screw, is used for described force-measuring sensing device is fixed on steel wire
On rope, porose on described fixture, described force-measuring sensing device is fixed by described fastening screw by the hole on described fixture
On a steel cord；Steel wire diameter supports the use with the reach of described fastening screw；Under the steel wire rope of different-diameter, described
After fastening screw means, described fixture lower surface and described force-measuring sensing device upper surface spacing are 22cm, in 24cm, 26cm
One distance；
Preferably, described communication device sends measurement data in a wired or wireless fashion.
Described Measurement and Data Processing and result display unit, including:
Communication device, is used for receiving the pulling force data that the communication device of described tonometry sensing unit sends；
Preferably, described communication device receives measurement data in a wired or wireless fashion；
Data fitting calibrating module, the pulling force data utilizing described tonometry sensing unit to measure calculates normal loading
Value, described normal loading value is used for field calibration；
Measurement and Data Processing device displaying result, the described normal loading calculated for video data fitting calibrating module
Value.
Described fitting calibrating module, including:
Nominal data storehouse, for carrying out data by the pulling force data of described tonometry sensing unit and testing machine standard value
The calibration formula obtained after matching；
Calibration formula, is converted into normal loading value, described mark by the pulling force data that described tonometry sensing unit is measured
Quasi-load value is used for field calibration.
Wherein, described nominal data storehouse is that described tonometry sensing unit is arranged on the steel wire rope of different-diameter, profit
With universal testing machine by the steel wire rope simulated field stressing conditions to different-diameter, record described tonometry sensing unit
Pulling force data, forms 0～300kN nominal data storehouse under different-diameter and different tests machine standard value；
Described testing machine standard value is the force value of universal testing machine.
This utility model has the advantages that
Owing to taking described meter locale to calibrate system, it is not necessary to after instrument is dismantled by the way of testing machine adds load
Carrying out calibrating indicating instrument at laboratory, solve to be calibrated instrument and remove and install loaded down with trivial details, carrying inconvenience, the impact of censorship cycle length is normal raw
The problem produced.Pass through this utility model, it is not necessary to the device separate calibration that will be calibrated in instrument, after can solving to assemble simultaneously
The problem of overall accuracy.It addition, this utility model uses described universal testing machine to carry out simulated field load condition, it is not necessary to rise
Hang large-tonnage standard test weight to carry out adding load, classical calibration fashion can be solved and loaded by lifting large-tonnage standard test weight
The counterweight quantity of lotus is greatly, conveying people puts into greatly, high to field condition requirement, installation operation is inconvenient, calibrate time-consuming length, needs to stop
The problem that only drilling well/workover treatment impact produces.
Accompanying drawing explanation
By below with reference to the accompanying drawing description to this utility model embodiment, of the present utility model above-mentioned and other mesh
, feature and advantage apparent, in the accompanying drawings:
Fig. 1 is system block diagram of the present utility model；
Fig. 2 is the schematic diagram of this utility model embodiment.
Detailed description of the invention
Being described this utility model below based on embodiment, but what deserves to be explained is, this utility model does not limit
In these embodiments.In below details of the present utility model being described, detailed describe some specific detail sections.So
And, for not having the part of detailed description, those skilled in the art can also understand this utility model completely.
Additionally, it should be understood by one skilled in the art that provided accompanying drawing simply to illustrate that of the present utility model
Objects, features and advantages, accompanying drawing is not actual being drawn to scale.
Meanwhile, unless the context clearly requires otherwise, otherwise " including ", " comprising " in entire disclosure and claims etc.
Similar word should be construed to the implication that comprises rather than exclusive or exhaustive implication；It is to say, be " including but not limited to "
Implication.
Fig. 1 is system block diagram of the present utility model.As it is shown in figure 1, meter locale calibration system include being calibrated instrument 1,
Tonometry sensing unit 2, Measurement and Data Processing and result display unit 3 and universal testing machine 4, wherein, universal testing machine 4 leads to
Cross a steel wire rope and be calibrated instrument 1 and tonometry sensing unit 2 is connected, utilize universal testing machine 4 tense wire rope mould
Intend on-the-spot load condition.
Being calibrated instrument 1 is the on-the-spot instrument needing and being calibrated, and shows dress including instrument sensing detection device 11 and instrument
Put 12；Wherein, instrument sensing detection device 11 is connected with meter displaying device 12, instrument sensing detection device 11 and tonometry
Sensing unit 2 is in series installed on a steel cord, is used for detecting the pulling force identical with tonometry sensing unit 2；Pass through instrument
The pulling force data that instrument sensing detection device 11 is detected by display device 12 shows, to meet display and the record of information
Requirement.Tonometry sensing unit 2, installs on a steel cord, in order to measuring steel wire rope tension, the pulling force data measured is sent
To Measurement and Data Processing and result display unit 3.Measurement and Data Processing and result display unit 3, with tonometry sensing unit 2
Connect, receive the data measured, and data are fitted and demarcate, and show Measurement and Data Processing result.
Further, force-measuring sensing device in tonometry sensing unit 2 21 is arranged on fixture and is calibrated instrument
On the steel wire rope of concatenation, for the tension force of measuring steel wire rope；Force-measuring sensing device 21 is a kind of survey being applicable to steel wire rope tension
Amount and the pressure transducer controlled, utilize communication device 22 to send the pulling force data of force-measuring sensing device 21 detection, wherein, lead to
News device 22 sends measurement data with wired or wireless mode.
Further, Measurement and Data Processing and result display unit 3 utilize communication device 31 to receive communication device 22
The pulling force data sent；The pulling force data that data fitting calibrating module 32 utilizes communication device 31 to receive calculates normal loading
Value, described normal loading value is used for field calibration, and processes knot by Measurement and Data Processing device displaying result 33 video data
Really.Wherein, communication device 31 receives measurement data in a wired or wireless fashion.Communication device 22 and communication device 31 can be based on
In ZigBee, bluetooth (Bluetooth), infrared (IrDA), WLAN 802.11 (Wi-Fi) or 2.4G home control network communication protocol
One or more communication modes.
Wherein, fitting calibrating module 32 utilizes nominal data storehouse, by the measurement data of described tonometry sensing unit 2 with
The calibration formula that testing machine standard value obtains after carrying out data matching, described calibration formula is by described tonometry sensing unit 2
Measurement data be converted into normal loading value；Force-measuring sensing device 21 is arranged on the steel wire rope of different-diameter, utilizes omnipotent examination
Test machine 4 by the steel wire rope simulated field stressing conditions to different-diameter, record the pulling force data of described force-measuring sensing device 21,
Form nominal data storehouse described in (0～the 300) kN under different-diameter and different tests machine standard value, the force value of universal testing machine 4
For testing machine standard value.
Further, in the case of same calibration point, utilize error calculation formula that the instrument being calibrated instrument is shown
The data of showing device 12 display and the data (that is, normal loading value) of Measurement and Data Processing device displaying result 33 display calculate
Show value error, the maximum described show value error taking each calibration point compares with being calibrated the instrument limits of error.Described
Maximum described show value error is more than being calibrated the instrument limits of error, it is believed that institute's calibrated meter precision is unsatisfactory for requirement, institute
Calibrated meter cannot use；Described maximum described show value error is less than being calibrated the instrument limits of error, it is believed that institute school
Quasi-accuracy of instrument meets requirement, and institute's calibrated meter can use, and completes the field calibration of instrument.
Wherein, being calibrated the instrument limits of error is that the range being calibrated instrument is multiplied by class of accuracy own；
Wherein, described error calculation formula is:
In above-mentioned error formula,R i It isiThe show value error of individual calibration point；f i It isiIndividual calibration point be calibrated instrument
The data shown by meter displaying device 12 of table；F i It isiThe normal loading value of individual calibration point；FFor being calibrated expiring of instrument
Range force value.Mathematically, maximum described show value error can be expressed as max{R i I >=1}, it is preferable that i ∈ [6,12].Institute
State calibration point for determine whether continue increase load capacity sign, do not increase load capacity after reaching calibration point.
Calibration point determine be under no-load condition the display result of described Measurement and Data Processing and result display unit for just
Beginning calibration point, and divide other calibration points with the described maximum range being calibrated instrument；And calculate by described error calculation formula
Show value error described in each calibration point, then by relatively described show value extent by mistake, obtains maximum described show value by mistake
Difference.
Fig. 2 is the schematic diagram of the field instrument calibration system of this utility model embodiment, with the weight indicator/draw-bar donamometer in oil field
As a example by field calibration system；As in figure 2 it is shown, the weight indicator in oil field/draw-bar donamometer field calibration system is by tonometry sensing unit
B, Measurement and Data Processing and result display unit C, it is calibrated instrument D and universal testing machine E composition, wherein universal testing machine
E by steel wire rope be calibrated instrument D and tonometry sensing unit B is connected, utilize universal testing machine E tense wire rope
Simulated field load condition.
Wherein, tonometry sensing unit B includes fastening screw B11, fixture B12, wireless communication apparatus B13 and other pressure
Formula force cell B14；Measurement and Data Processing and result display unit C include wireless communication apparatus C11, data matching mark
Cover half block C12 and Measurement and Data Processing device displaying result C13；It is calibrated instrument D and includes instrument hydrostatic sensor D11 and instrument
Display device D12.
For apparent explanation feature of the present utility model, below Fig. 2 is combined Fig. 1 and further illustrate, the fastening in Fig. 2
Screw B11, fixture B12 and side-compression force cell B14 collectively constitute force-measuring sensing device 21 in Fig. 1, side-compression dynamometry
The measurement scope of sensor B14 is 0～300kN, accuracy 0.5 grade.
At the present embodiment, as in figure 2 it is shown, utilize the fixture of fastening screw B11 and fixture B12 composition by side-compression dynamometry
Sensor B14 is concatenated on the dead line end (steel wire rope is fixed on immovable one end on derrick) of steel wire rope, side-compression dynamometry
The precision of the sensor B14 precision higher than instrument hydrostatic sensor D11.When derrick load change, steel wire rope stress generation shape
Becoming, cause side-compression force cell B14 to measure pulling force data, described pulling force data is transmitted by wireless communication apparatus B13
To wireless communication apparatus C11；Measurement and Data Processing and result display device C are to drawing that wireless communication apparatus C11 receives
Force data carries out data matching and demarcation, completes the calculating of normal loading value.Instrument hydrostatic sensor D11 is connected to steel wire rope
On, when derrick load change, when steel wire rope stress deforms upon, instrument hydrostatic sensor D11 measures and side-compression dynamometry
The pulling force that sensor B14 is identical, the pulling force data measured by meter displaying device D12 display instrument hydrostatic sensor D11.
Wherein, communication device B13 and communication device C11 can be based on ZigBee, bluetooth (Bluetooth), infrared
(IrDA), one or more communication modes in WLAN 802.11 (Wi-Fi) or 2.4G home control network communication protocol.
Based on above-mentioned, in the case of same calibration point, utilize error calculation formula that the instrument being calibrated instrument is shown
The data of showing device 12 display and the data (that is, normal loading value) of Measurement and Data Processing device displaying result 33 display calculate
Show value error, the maximum described show value error taking each calibration point compares with being calibrated the instrument limits of error.Described
Maximum described show value error is more than being calibrated the instrument limits of error, it is believed that institute's calibrated meter precision is unsatisfactory for requirement, institute
Calibrated meter cannot use；Described maximum described show value error is less than being calibrated the instrument limits of error, it is believed that institute school
Quasi-accuracy of instrument meets requirement, and institute's calibrated meter can use, and completes the field calibration of instrument.
Wherein, being calibrated the instrument limits of error is that the range being calibrated instrument is multiplied by class of accuracy own；
Wherein, described error calculation formula is:
In above-mentioned error formula,R i It isiThe show value error of individual calibration point；f i It isiIndividual calibration point be calibrated instrument
The data shown by meter displaying device 12 of table；F i It isiThe normal loading value of individual calibration point；FFor being calibrated expiring of instrument
Range force value.Mathematically, maximum described show value error can be expressed as max{R i I >=1}, it is preferable that i ∈ [6,12].Institute
State calibration point for determine whether continue increase load capacity sign, do not increase load capacity after reaching calibration point.
Wherein, calibration point determines, with the display result of Measurement and Data Processing described under no-load condition Yu result display unit
For initial calibration point, and divide other calibration points with the described maximum range being calibrated instrument, it is preferable that determine in addition to starting point
With the 25% of maximum range, 50%, the 75% of weight indicator/draw-bar donamometer for other calibration points described；Such as, choose described starting point, refer to
The 25% of maximum range of weight table/draw-bar donamometer, 50%, 75% as calibration point, repeats 2 times and measures, by described Error Calculation
Formula obtains 8 groups of show value errors.
Further, described fixture and side-compression force cell B14 need to ensure to fix after fastening screw B11 screws
There is spacing in part B12 lower surface and side-compression force cell B14 upper surface, makes when different-diameter steel wire rope is carried out dynamometry
Carry out (that is, the steel wire rope of different-diameter is to fastening screw accordingly) is installed with a pair corresponding fastening screw, it is ensured that survey
During amount, loading angle is constant, increases measurement accuracy；Described fixture B12 lower surface and side-compression force cell B14
Upper surface spacing is the one distance in 22cm, 24cm or 26cm.
Further, since the cross component force that pulling force data is steel wire rope actual loading that side-compression force cell B14 measures,
Need to be demarcated by simulated field force way, component is scaled normal loading value by calibration formula and just can carry out existing
Field calibration, accordingly, it would be desirable to described cross component force is passed through described calibration formula with result display device C by Measurement and Data Processing
It is scaled normal loading value.
Specifically, the pulling force data that fitting calibrating module C12 utilizes tonometry sensing unit B to measure calculates standard
Load value.
Further, utilize universal testing machine E tense wire rope simulated field load condition, utilize side-compression force-measuring sensing
The data that device B14 measures set up the nominal data storehouse that different-diameter steel wire rope is corresponding with different tests machine standard value；Demarcating number
According in storehouse, carry out data the Fitting Calculation by Measurement and Data Processing device displaying result C13 with testing machine standard value and obtain demarcation
Formula, wherein, the machine standard value of testing is the size of the actual forces of universal testing machine E tense wire rope.Utilize calibration formula, by described
The measurement data of tonometry sensing unit B is converted into the normal loading value for field calibration.
Embodiment described above only expresses embodiment of the present utility model, and it describes more concrete and detailed, but also
Therefore the restriction to this utility model the scope of the claims can not be interpreted as.It should be pointed out that, the ordinary skill people to this area
For Yuan, without departing from the concept of the premise utility, it is also possible to make some deformation, equal replacement, improvement etc., these
Broadly fall into protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (8)
1. a meter locale calibration system, it is characterised in that including:
It is calibrated instrument；
Tonometry sensing unit, installs on a steel cord, for measuring steel wire rope tension, and is sent to pulling force data measure
Data process and result display unit；
Measurement and Data Processing and result display unit, be connected with described tonometry sensing unit, receives described tonometry and passes
The pulling force data that sense unit sends, and described pulling force data is converted into normal loading value, and show the process knot of measurement data
Really；
Universal testing machine, is connected with described steel wire rope, for simulated field load condition.
Meter locale the most according to claim 1 calibration system, it is characterised in that described in be calibrated instrument and include:
Instrument sensing detection device, is fixed on immovable one end on derrick and is connected, detect and described tension force with steel wire rope
Measure the pulling force data that sensing unit is identical；
Meter displaying device, is connected with instrument sensing detection device, for showing what described instrument sensing detection device detected
Pulling force data.
Meter locale the most according to claim 1 calibration system, it is characterised in that described tonometry sensing unit bag
Include:
Force-measuring sensing device, is arranged on and is calibrated on the steel wire rope that instrument concatenates, for the tension force of measuring steel wire rope with described；
Fixture, is used for fixing on a steel cord described force-measuring sensing device；
Communication device, is connected with result display unit respectively with described force-measuring sensing device and Measurement and Data Processing, is used for institute
State the pulling force data that force-measuring sensing device detects and be sent to described Measurement and Data Processing and result display unit.
Meter locale the most according to claim 1 calibration system, it is characterised in that described Measurement and Data Processing unit bag
Include:
Communication device, is used for receiving the pulling force data that the communication device of described tonometry sensing unit sends；
Data fitting calibrating module, the pulling force data utilizing described tonometry sensing unit to measure calculates normal loading value,
Described normal loading value is used for field calibration；
Measurement and Data Processing device displaying result, the described normal loading value calculated for video data fitting calibrating module.
Meter locale the most according to claim 2 calibration system, it is characterised in that described instrument sensing detection device bag
Include:
Hydrostatic sensor, one end immovable with steel wire rope is connected, and detects identical with described tonometry sensing unit
Pulling force data.
Meter locale the most according to claim 3 calibration system, it is characterised in that described force-measuring sensing device includes:
Side-compression force cell, is arranged on and is calibrated on the steel wire rope that instrument concatenates, for the pulling force number of measuring steel wire rope
According to, measure scope 0～300kN, accuracy 0.5 grade；
Described side-compression force cell is the one in crystal tension pick-up or strain resistor sensor.
Meter locale the most according to claim 3 calibration system, it is characterised in that described fixture includes:
Fixture and fastening screw, be used for fixing on a steel cord described force-measuring sensing device, porose on described fixture；
Described force-measuring sensing device is fixed on a steel cord by described fastening screw by the hole on described fixture；
The reach of described fastening screw supports the use with wirerope diameter；
After described fastening screw means, described fixture lower surface and described force-measuring sensing device upper surface spacing be 22cm,
One distance in 24cm or 26cm.
Meter locale the most according to claim 4 calibration system, it is characterised in that described data fitting calibrating module bag
Include:
Nominal data storehouse, for carrying out data matching by the pulling force data of described tonometry sensing unit and testing machine standard value
After the calibration formula that obtains；
Calibration formula, utilizes described calibration formula that the pulling force data that described tonometry sensing unit is measured is converted into standard and carries
Charge values, described normal loading value is used for field calibration；
Wherein, described nominal data storehouse is that described tonometry sensing unit is arranged on the steel wire rope of different-diameter, utilizes ten thousand
Energy testing machine, by the steel wire rope simulated field stressing conditions to different-diameter, records the pulling force of described tonometry sensing unit
Data, form 0～300kN nominal data storehouse under different-diameter and different tests machine standard value；
Wherein, described testing machine standard value is the force value of universal testing machine.
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| CN201620808180.0U CN205861281U (en) | 2016-07-28 | 2016-07-28 | Meter locale calibration system |
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| CN201620808180.0U CN205861281U (en) | 2016-07-28 | 2016-07-28 | Meter locale calibration system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767989A (en) * | 2017-01-10 | 2017-05-31 | 北京康斯特仪表科技股份有限公司 | Metering device and use its calibration method |
| CN107144398A (en) * | 2017-05-08 | 2017-09-08 | 奇瑞汽车股份有限公司 | A kind of harness tension meter calibrating device and its calibration method |
| CN109000847A (en) * | 2018-06-28 | 2018-12-14 | 中国人民解放军国防科技大学 | Calibration method for force sensor |
| CN109752272A (en) * | 2019-03-12 | 2019-05-14 | 贵州钢绳股份有限公司 | A kind of super-huge tensile testing machine calibration method of multi-cylinder stress and device |
| CN111289401A (en) * | 2020-03-13 | 2020-06-16 | 深圳天溯计量检测股份有限公司 | Material testing machine performance analysis system based on internet |
| CN111693083A (en) * | 2020-06-22 | 2020-09-22 | 安东仪器仪表检测有限公司 | Online temperature and humidity instrument in-situ calibration method |
| CN111780834A (en) * | 2020-07-21 | 2020-10-16 | 安东仪器仪表检测有限公司 | Calibration method of pressure liquid level meter |
| CN114858318A (en) * | 2021-02-03 | 2022-08-05 | 中国石油天然气集团有限公司 | Wireless injection head load calibrator |
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2016
- 2016-07-28 CN CN201620808180.0U patent/CN205861281U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767989A (en) * | 2017-01-10 | 2017-05-31 | 北京康斯特仪表科技股份有限公司 | Metering device and use its calibration method |
| CN106767989B (en) * | 2017-01-10 | 2023-10-24 | 北京康斯特仪表科技股份有限公司 | Meter device and calibration method using same |
| CN107144398A (en) * | 2017-05-08 | 2017-09-08 | 奇瑞汽车股份有限公司 | A kind of harness tension meter calibrating device and its calibration method |
| CN109000847A (en) * | 2018-06-28 | 2018-12-14 | 中国人民解放军国防科技大学 | Calibration method for force sensor |
| CN109752272A (en) * | 2019-03-12 | 2019-05-14 | 贵州钢绳股份有限公司 | A kind of super-huge tensile testing machine calibration method of multi-cylinder stress and device |
| CN111289401A (en) * | 2020-03-13 | 2020-06-16 | 深圳天溯计量检测股份有限公司 | Material testing machine performance analysis system based on internet |
| CN111693083A (en) * | 2020-06-22 | 2020-09-22 | 安东仪器仪表检测有限公司 | Online temperature and humidity instrument in-situ calibration method |
| CN111693083B (en) * | 2020-06-22 | 2022-03-18 | 安东仪器仪表检测有限公司 | Online temperature and humidity instrument in-situ calibration method |
| CN111780834A (en) * | 2020-07-21 | 2020-10-16 | 安东仪器仪表检测有限公司 | Calibration method of pressure liquid level meter |
| CN111780834B (en) * | 2020-07-21 | 2022-11-22 | 安东仪器仪表检测有限公司 | Calibration method of pressure liquid level meter |
| CN114858318A (en) * | 2021-02-03 | 2022-08-05 | 中国石油天然气集团有限公司 | Wireless injection head load calibrator |
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