CN206905966U - A kind of automatic calibration system of electric bridge pattern strain stress measuring system - Google Patents
A kind of automatic calibration system of electric bridge pattern strain stress measuring system Download PDFInfo
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- CN206905966U CN206905966U CN201720762072.9U CN201720762072U CN206905966U CN 206905966 U CN206905966 U CN 206905966U CN 201720762072 U CN201720762072 U CN 201720762072U CN 206905966 U CN206905966 U CN 206905966U
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- strain stress
- electric bridge
- bridge pattern
- stress signal
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Abstract
It the utility model is related to a kind of automatic calibration system of electric bridge pattern strain stress measuring system, developed based on the design of once-through type standard analog strain signal source with manufacturing technology and automatic control technology, traditional manual control of the gear is replaced to switch using advanced driving stepper motor control technology, realized by program and automatically control calibration process, and print demarcation report, to meet the strain stress automatic Calibration of multichannel electric bridge pattern, the operating efficiency of actual proving operation can be greatly improved.
Description
Technical field
A kind of automatic calibration system of electric bridge pattern strain stress measuring system is the utility model is related to, belongs to demarcation measurement
Technical field.
Background technology
Automatic Calibration technology can apply to the development in standard strain signal source, so as to realize strain stress signal testing point
The automatic Calibration of the electric bridge pattern ess-strain of analysis system, especially test prevailing structural mechanics research in strain stress
Field is significant.In the analysis of fatigue to large scale structures such as aircraft, ship, naval vessels, vehicles, it is necessary to substantial amounts of strain stress
Measuring point, at least hundreds of, it is at most thousands of, it is required to carry out strain demarcation to Measurement channel used before experiment every time, demarcates
Underproof passage cannot be used for formal test.And currently used for the traditional standard simulated strain signal of strain measurement corridorbarrier function
Source does not possess technique so that in high-volume strain measuring point demarcation, substantial amounts of manpower and time need to be spent to go to demarcate manually
Each strained channel, and necessary staff on duty, staff once stop operation, staking-out work stops immediately, this tradition mark
Determining mode influences calibration cost and efficiency, causes experiment to be delayed when serious, influences large project process.
Traditional strain calibration process is such, first, by the standard strain signal source of manual fork shift and strain stress
Fastened between some strain measurement passage of signal testing analysis system by wire welding or screw；Then, mark is started
It is fixed, switching strained source gear is manually stirred, gives a standard value, the artificial average value read on Data Collection Software is simultaneously
Record, after the completion of a Measurement channel, again by the next strained channel for needing to demarcate of standard strain signal access, weigh successively
Multiple operation, each step must all rely on manual intervention；Finally, according to the data of record, manual sorting demarcation record form, formed
Print and achieve after report.Many shortcomings be present in this mode：（1）Single channel demarcation can only be carried out every time；（2）Change demarcation passage
Necessary rewiring, different bridge modes need to connect different signal wires, and often appearance connection is unreliable causes calibrated error
It is bigger than normal；（3）All data are artificial reading, and different people operation can obtain different reading results；（4）The data of reading are past
When being filled in record form, because data volume is larger, mistake is often artificially filled in；（5）Each operating procedure is required for people
Work intervention, once operating personnel stop, staking-out work stops, and wants to continue demarcation, accelerates demarcation progress, can only pass through increase
Calibration facility, demarcation personnel, the mode such as lengthen working hours, certainly will cause that personnel are tired out, the wasting of resources；（6）All demarcation
, there is result non-standard phenomena in the necessary artificial treatment of report, be difficult to avoid not making mistakes in processing procedure.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of the automatic of electric bridge pattern strain stress measuring system
Calibration system, intellectuality, the automation of strain demarcation can not only be realized, reduce human cost, the time cost of staking-out work,
And demarcation efficiency can be greatly improved, realize " one-touch " automatic Calibration.
In order to solve the above-mentioned technical problem the utility model uses following technical scheme：The utility model devises a kind of electricity
The automatic calibration system of bridge mode strain stress measuring system, including strain stress signal source and the strain stress letter being in communication with each other
Number detecting and analysing system, strain measurement passage mark is provided to strain stress signal testing analysis system by strain stress signal source
Fixed standard signal source input, the mark of each measuring point of measurand is realized, the strain stress signal source should for electric bridge pattern
Varying stress signal source, the strain stress signal testing analysis system are electric bridge pattern strain stress signal testing analysis system；
Also include scheduling controlling terminal, the electric bridge pattern strain stress signal source includes power supply, shift-position changing mechanism, passage switching
Mechanism and drive control module；In electric bridge pattern strain stress signal source, power supply is respectively shift-position changing mechanism, passage switching machine
Structure, drive control module are powered, and drive control module is connected with shift-position changing mechanism, passage switching mechanism respectively, shelves
The output end of position switching mechanism is connected with the input of passage switching mechanism；Scheduling controlling terminal and electric bridge pattern strain stress
Drive control module in signal source communicates, the output end of passage switching mechanism and electricity in electric bridge pattern strain stress signal source
Bridge mode strain stress signal testing analysis system communicates；Scheduling controlling terminal and electric bridge pattern strain stress signal testing point
Analysis system communicates.
As a kind of optimal technical scheme of the present utility model：The electric bridge pattern strain stress signal source middle gear switching
Mechanism includes the first servomotor drive mechanism and gear switch body, the driving in the electric bridge pattern strain stress signal source
Control module is connected with the first servomotor drive mechanism, and the first servomotor drive mechanism is connected with gear switch body
Connect, the output end of gear switch body is connected with the input of passage switching mechanism.
As a kind of optimal technical scheme of the present utility model：Passage switches in the electric bridge pattern strain stress signal source
Mechanism includes the second servomotor drive mechanism and passage switching body, the driving in the electric bridge pattern strain stress signal source
Control module is connected with the second servomotor drive mechanism, and the second servomotor drive mechanism is connected with passage switching body
Connect, the output end and the input phase of passage switching body of the electric bridge pattern strain stress signal source middle gear switching body
Connection, the output end of passage switching body communicate with the electric bridge pattern strain stress signal testing analysis system.
As a kind of optimal technical scheme of the present utility model：Power supply in the electric bridge pattern strain stress signal source is
Charged lithium cells.
A kind of automatic calibration system of electric bridge pattern strain stress measuring system described in the utility model uses above technology
Scheme compared with prior art, has following technique effect：A kind of electric bridge pattern strain stress measurement of the utility model design
The automatic calibration system of system, designed based on once-through type standard analog strain signal source and opened with manufacturing technology and automatic control technology
Hair, replace traditional manual control of the gear to switch using advanced driving stepper motor control technology, realized certainly by program
Dynamic control calibration process, and demarcation report is printed, to meet the strain stress automatic Calibration of multichannel electric bridge pattern, and specifically
Have the following advantages that：（1）Chargeable lithium cell is carried, without outer power supply, avoids Hz noise；（2）Can be achieved 1/4 bridge, half-bridge,
The strain error of indication of three kinds of bridge modes of full-bridge, strain nonlinearity erron automatic Calibration；（3）System can automatically switch standard should
Change source strain signal output gear, switches without manually fork shift；（4）The strain measurement passage switching being calibrated is cut by passage
Change case to be automatically performed, without changing demarcation passage manually；（5）User can customize calibrating template or directly use default template,
Once editor can automatically save；（6）System is automatic to set electric bridge parameter according to predefined parameter setting；（7）Calibration process need not
Manual intervention, start reading and simultaneously fill in a form, it is ensured that reading specification, uniformly；（8）One key is demarcated, and automatically generates demarcation report.
Brief description of the drawings
Fig. 1 is a kind of automatic calibration system of electric bridge pattern strain stress measuring system and demarcation designed by the utility model
The schematic diagram of method.
Embodiment
Specific embodiment of the present utility model is described in further detail with reference to Figure of description.
As shown in figure 1, the utility model devises a kind of automatic calibration system of electric bridge pattern strain stress measuring system
And scaling method, including the strain stress signal source and strain stress signal testing analysis system being in communication with each other, by answering allergic effect
The standard signal source that force signal source provides strain measurement corridorbarrier function to strain stress signal testing analysis system inputs, and realizes quilt
The mark of each measuring point of object is surveyed, the strain stress signal source is electric bridge pattern strain stress signal source, the strain stress
Signal testing analysis system is electric bridge pattern strain stress signal testing analysis system；Also include scheduling controlling terminal, the electricity
Bridge mode strain stress signal source includes power supply, shift-position changing mechanism, passage switching mechanism and drive control module；Electric bridge mould
In formula strain stress signal source, power supply is respectively that shift-position changing mechanism, passage switching mechanism, drive control module are powered,
Drive control module is connected with shift-position changing mechanism, passage switching mechanism respectively, the output end and passage of shift-position changing mechanism
The input of switching mechanism is connected；Scheduling controlling terminal and the drive control module phase in electric bridge pattern strain stress signal source
Communicate, the output end of passage switching mechanism and electric bridge pattern strain stress signal testing point in electric bridge pattern strain stress signal source
Analysis system communicates；Scheduling controlling terminal communicates with electric bridge pattern strain stress signal testing analysis system；Electric bridge pattern should
Varying stress signal source middle gear switching mechanism includes the first servomotor drive mechanism and gear switch body, the electric bridge pattern
Drive control module in strain stress signal source is connected with the first servomotor drive mechanism, the first servomotor driving machine
Structure is connected with gear switch body, and the output end of gear switch body is connected with the input of passage switching mechanism；Electric bridge
Passage switching mechanism includes the second servomotor drive mechanism and passage switching body, the electricity in pattern strain stress signal source
Drive control module in bridge mode strain stress signal source is connected with the second servomotor drive mechanism, the second servomotor
Drive mechanism is connected with passage switching body, the output end of the electric bridge pattern strain stress signal source middle gear switching body
It is connected with the input of passage switching body, the output end of passage switching body and the electric bridge pattern strain stress signal
Detecting and analysing system communicates.In practical application, for the power supply in the electric bridge pattern strain stress signal source, specific design
Using charged lithium cells.
It is further based on the automatic calibration system of above-mentioned designed electric bridge pattern strain stress measuring system, the utility model
Devise the scaling method based on the calibration system, drive of the scheduling controlling terminal into electric bridge pattern strain stress signal source
Dynamic control module sends control instruction, and drive control module is sent out through the first servomotor drive mechanism to gear switch body first
Control instruction is sent, realizes gear switch, then, drive control module switches body through the second servomotor drive mechanism to passage
Send control instruction, realize that passage switches, last electric bridge pattern strain stress signal source by the gear and passage after switching, to
The strain stress signal testing analysis system provides the standard signal source input of strain measurement corridorbarrier function, realizes measurand
The mark of each measuring point.
By the automatic calibration system and scaling method of above-mentioned designed electric bridge pattern strain stress measuring system, reality is applied to
Among the application process of border, user aids in software by scheduling controlling terminal loads, for being passed under parameter preset, starts automatic
Calibrating function, system can be automatic according to default driving parameter strain stress signal testing analysis system and strain stress signal source
Perform gear switch and passage output switching, strain stress signal testing analysis system transfer data to scheduling controlling terminal,
Demarcation and printed report are automatically performed, pilot process is without manual intervention.
In specific implementation, embodiment DH43018 programmed criteria strained sources, that is, ess-strain electric bridge pattern measurement system has been used
System automatic Calibration technology so that in practical application, there is following Advantageous advantage：（1）Using integrated design, electricity is integrated
Source, standard strain stress signal source and passage a-b box；（2）Resistance strain gauge can be used as to give birth to after the measurement verification of metering institute of China
Dispatch from the factory the two level measurement instrument of calibrating during production；（3）Possess three kinds of 1/4 bridge, half-bridge, full-bridge bridge modes；（4）Separate unit system
16 passages are supported to automatically switch；（5）Achieved strain demarcation project is the strain error of indication, strain nonlinearity erron；（6）
Carry chargeable lithium cell；（7）Strain output area：±10με~±99990με；（8）Accuracy grade：0.05 grade；（9）Match somebody with somebody
Set auxiliary software, realizes automatic Calibration and printed report.
Embodiment of the present utility model is explained in detail above in conjunction with accompanying drawing, but the utility model is not limited to
Above-mentioned embodiment, in those of ordinary skill in the art's possessed knowledge, the utility model can also not departed from
Made a variety of changes on the premise of objective.
Claims (4)
1. a kind of automatic calibration system of electric bridge pattern strain stress measuring system, including the strain stress signal source being in communication with each other
With strain stress signal testing analysis system, being provided by strain stress signal source to strain stress signal testing analysis system should
Become the standard signal source input of Measurement channel demarcation, realize the mark of each measuring point of measurand, it is characterised in that：The strain
Stress signal source is electric bridge pattern strain stress signal source, and the strain stress signal testing analysis system strains for electric bridge pattern
Stress signal detecting and analysing system；Also include scheduling controlling terminal, the electric bridge pattern strain stress signal source include power supply,
Shift-position changing mechanism, passage switching mechanism and drive control module；In electric bridge pattern strain stress signal source, power supply is respectively shelves
Position switching mechanism, passage switching mechanism, drive control module are powered, drive control module respectively with shift-position changing mechanism,
Passage switching mechanism is connected, and the output end of shift-position changing mechanism is connected with the input of passage switching mechanism；Scheduling controlling
Terminal communicates with the drive control module in electric bridge pattern strain stress signal source, leads in electric bridge pattern strain stress signal source
The output end of road switching mechanism communicates with electric bridge pattern strain stress signal testing analysis system；Scheduling controlling terminal and electric bridge
Pattern strain stress signal testing analysis system communicates.
A kind of 2. automatic calibration system of electric bridge pattern strain stress measuring system according to claim 1, it is characterised in that：
The electric bridge pattern strain stress signal source middle gear switching mechanism includes the first servomotor drive mechanism and gear switch sheet
Body, the drive control module in the electric bridge pattern strain stress signal source are connected with the first servomotor drive mechanism, and
One servomotor drive mechanism is connected with gear switch body, and the output end of gear switch body is defeated with passage switching mechanism
Enter end to be connected.
A kind of 3. automatic calibration system of electric bridge pattern strain stress measuring system according to claim 2, it is characterised in that：
Passage switching mechanism includes the second servomotor drive mechanism and passage switching originally in the electric bridge pattern strain stress signal source
Body, the drive control module in the electric bridge pattern strain stress signal source are connected with the second servomotor drive mechanism, and
Two servomotor drive mechanisms are connected with passage switching body, and the electric bridge pattern strain stress signal source middle gear switching is originally
The output end of body is connected with the input of passage switching body, and the output end of passage switching body strains with the electric bridge pattern
Stress signal detecting and analysing system communicates.
A kind of 4. automatic calibration system of electric bridge pattern strain stress measuring system according to claim 1, it is characterised in that：
Power supply in the electric bridge pattern strain stress signal source is charged lithium cells.
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| CN201720762072.9U CN206905966U (en) | 2017-06-28 | 2017-06-28 | A kind of automatic calibration system of electric bridge pattern strain stress measuring system |
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| CN201720762072.9U CN206905966U (en) | 2017-06-28 | 2017-06-28 | A kind of automatic calibration system of electric bridge pattern strain stress measuring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179155A (en) * | 2017-06-28 | 2017-09-19 | 江苏东华测试技术股份有限公司 | A kind of automatic calibration system and scaling method of electric bridge pattern strain stress measuring system |
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2017
- 2017-06-28 CN CN201720762072.9U patent/CN206905966U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179155A (en) * | 2017-06-28 | 2017-09-19 | 江苏东华测试技术股份有限公司 | A kind of automatic calibration system and scaling method of electric bridge pattern strain stress measuring system |
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