CN207180636U - Vertical intelligent tester for displacement sensor - Google Patents
Vertical intelligent tester for displacement sensor Download PDFInfo
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- CN207180636U CN207180636U CN201720787291.2U CN201720787291U CN207180636U CN 207180636 U CN207180636 U CN 207180636U CN 201720787291 U CN201720787291 U CN 201720787291U CN 207180636 U CN207180636 U CN 207180636U
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- displacement sensor
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 24
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 5
- 238000013480 data collection Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 abstract description 16
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000004801 process automation Methods 0.000 abstract 1
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Abstract
The utility model discloses a vertical intelligent tester for a displacement sensor, which comprises a fixed clamp (5) and a movable clamp (4) which are coaxial in the vertical direction; the moving direction of the movable clamp (4) is consistent with the axis, the movable clamp (4) is sequentially connected with the ball head (6), the transmission threaded rod (3) and the servo motor (2), and the ball head (6) is provided with a ball body locking knob (7); the servo motor (2) is connected with an upper computer, the upper computer is connected with a data acquisition module, and the data acquisition module is connected with a displacement sensor interface. The utility model discloses a to the full process automation control of displacement sensor inspection, can realize the quick fixed to the sensor to make it be in axle center stress state all the time, ensure the inspection achievement precision. Meanwhile, the system has the functions of automatically storing, calculating and outputting the inspection results, the working efficiency can be greatly improved on the premise of ensuring that the quality of the inspection results meets the requirements, and the general personnel in the field are easy to operate and master.
Description
Technical field
The utility model belongs to project security monitoring field, is related specifically to a kind of field test for displacement transducer
Upright intelligent check meter.
Background technology
The monitoring instrument longtime running under hidden working environment mostly.Once after instrument Embedment and installation, generally with regard to nothing
Method is overhauled and changed.Therefore, to all instruments that will be buried, it is necessary to the reliability for parameter of being dispatched from the factory to it, instrument itself
Stability and outward appearance of work etc. are comprehensively examined, it is ensured that the instrument properties used meet to require.
Displacement transducer is one of a kind of sensor most frequently used in deformation monitoring project, at present field test master
To carry out in the following ways：
（1）Prepare to examine equipment and instrument
Large and small each one of calibrated mount（Each 1 set containing special fixture）, large and small each 2 of range dial indicator, reading
One, instrument, slide measure one is paid, instrument（Containing spanner, screwdriver）A set of, field test record form is some.
（2）Read initial reading
INSTRUMENT MODEL, range, producer's numbering are filled in after record form, the initial read of sensor is read with readout instrument
Number.
（3）Prestretching
Sensor is mounted on big rectifier by special fixture and tightened with bolt, rectifier handle is shaken and instrument is carried out in advance
Draw.
（4）Classification is drawn, moves back inspection
Drawn, moved back and charged to measured value in table no less than 6 grades by range decile, terminated after three circulations.
（5）Calculate
Displacement caused by sensor（Or deformation）With output frequency modulusFLinear, conversion formula is generally：
In formula：S i —iThe displacement of moment sensor reflection；
K—Sensor coefficient
F 0 - null pressure exports modulus
F i - correspondingS i Output modulus
Calibration curve is handled by above formula, and when calculating relevant index, its characteristic working curve can use least-squares line,
I.e.：
N = a + bS
i
In formula： NThe difference of two squares of-output frequency
aThe intercept of-least-squares line
bThe slope of-least-squares line.
Displacement is offset output modulusF 0 ：
Output frequency during rated displacement：
Rated output：
F= F
0
-F
ni
Resolution（Least count）：
Non-straight dimension：
Hysteresis：
Nonrepeatability：
Composition error：
In upper column：
mTime of-test cycle（It is secondary）Number（m=1、2、……m）；
F nj - thejSecondary loading and move back lotus measurement when, output frequency value when displacement is zero point；
F nij - thejOutput frequency value during secondary loading to rated displacement value；
ΔF L The maximum of-average calibration curve and work straight line variation；
ΔF H - backhaul average calibration curve and process average calibration curve, displacement same test point output bias are maximum
Value；
ΔF R When-process and backhaul repeat to calibrate, the maximum of each test point output bias；
ΔF c Both-process average calibration curve and backhaul average calibration curve and the straight line variation maximum that works；
FThe difference of two squares of-rated output frequency；
F s - sensor Full-span output frequency values.
（6）The judgment criteria of assay
The relative error for evaluating the resolution ratio that whether instrument is qualified, is provided with producer except the instrumental resolution of field test is small
Outside 1%, also need to meet following condition：
Nonrepeatability should be not more than 0.5%F.S；
Hysteresis should be not more than 1%F.S；
Non-straight dimension should be not more than 2%F.S；
Composition error should be not more than 2.5%F.S。
For displacement transducer, although existing field test method is more ripe, in actual mechanical process still
Following open defect be present：
（1）The bad adaptability of calibrated mount, scene generally require voluntarily to process phase therewith according to the actual size of sensor
The special fixture matched somebody with somebody, generally require to process the fixture of sizes, and the repeatable availability of fixture is low.
（2）The prestretching of sensor is manual operation, if unskilled to the operating method of calibrated mount, it is possible to by sensor
Draw bad.
（3）To ensure that sensor is in uniaxial force state all the time during tension and compression, that is, require that sensor is fixed on school
After on positive frame, its axis is on straight line with clamp central, power transmission rod axis.But because sensor is to pass through folder
Tool is horizontally fixed on calibrated mount, is affected by gravity in fixation procedure, it is difficult to ensure that it is in absolute horizontality, so as to
Influence the precision of inspection achievement.
（4）Whole checkout procedure is manual operation, requires high to the specialized capability of personnel, and inevitably deposit
In accidental error, influence to examine Result Precision.
（5）The drawing of sensor, move back need by its range decile no less than 6 grades progress, circulate 3 times, operating process is cumbersome, need
Devote a tremendous amount of time, and the control to process is very strict with the requirement of all previous reading, does not otherwise reach expected effect
Fruit.
（6）The data collected are needed to carry out the calculating of many index, computational methods are relatively complicated and judging quota is more,
Easily there is mistake.
The content of the invention
The purpose of this utility model is：The problem of existing for above-mentioned prior art means, develops a set of displacement transducer
Upright intelligent check meter, realize and the full process automatization that displacement transducer is examined is controlled, can be achieved to the quick solid of sensor
It is fixed, and it is in uniaxial force state all the time, it is ensured that examine Result Precision.Meanwhile with automatic storage, calculating and output inspection
The function of achievement is tested, on the premise of ensuring to examine quality of achievement to meet to require, is greatly improved operating efficiency, and it is special for this
Industry general staff is also easy to operate and grasped.
The technical solution of the utility model is as follows：
A kind of displacement transducer upright intelligent check meter, including the stationary fixture and floating holder that vertical direction is coaxial；
The moving direction of the floating holder is consistent with axis, and floating holder successively with can multi-angle regulation bulb, pass
Dynamic threaded rod, servomotor are connected, and can be provided with spheroid locking knob on multi-angle regulation bulb；
The servomotor is connected with host computer；
The stationary fixture is fixedly connected on shell body bottom；
Display is provided with the shell body；
Data collection module interface, vibrating wire instrument interface, differential-resistance meter interface and electricity are provided with the shell body
Position device formula tool interface system.
Horizontal levelling bubble is provided with the shell body.
The shell body bottom is provided with adjustable pedestal.
The detection method of displacement transducer upright intelligent check meter comprises the following steps：
The first step：Determine the type and model of sensor；
Second step：Leveling, it is ensured that the axis of floating holder and stationary fixture is perpendicular to horizontal plane；
3rd step：Fixed sensor, fixed knob is unclamped so that floating holder is in free state, then will sensing
Device one end is fixed on floating holder, and be tightened knob, starts servomotor, and driving motion thread bar drives floating holder past
Stationary fixture side is moved, until the other end of sensor enters in stationary fixture；
4th step：Program is set, inspection parameter, checkout procedure, input and output are configured, sensor cable is accessed
The corresponding interface, data acquisition module is connected with data collection module interface；
5th step：Examine, start check meter, by pre-set programs or import the motion of coding-control servomotor, pass through number
Inspection data is gathered, stored and exported according to acquisition module.
Stationary fixture is identical with floating holder structure, including base, lid and the threaded rod with driven wheel of differential；
There is a connecting hole on base；Lid outer face is latch segment, is rotating ring between lid and base, has one in lid
Connecting pole, the first positioning hole is provided with connecting pole, the second positioning hole is provided with the madial wall of lid, sliding is provided with lid end face
Groove；Latch segment lower end is connected with threaded rod, has a driving bevel gear on rotating ring, is provided with the end face of driving bevel gear threaded
Through hole.
Fixture by rotation driving bevel gear so as to drive driven wheel of differential to rotate, and then drive it is coaxial with driven wheel of differential
Threaded rod rotation, because the both ends of threaded rod are separately fixed on the first positioning hole and the covered body wall on lid connecting pole
In second positioning hole, therefore threaded rod can only rotate along the axis of its own, and on the other hand, latch segment lower end connects with threaded rod
Connect,, can only be along threaded rod length direction back and forth because the barrier effect of lid outer face can not rotate when threaded rod rotates
Mobile, multiple latch segments are simultaneously mobile, it is achieved thereby that the function of clamping and unclamp.
Compared with prior art, the utility model embodies in the following areas：
The utility model simple and quick can clamp for various sizes of sensor, strong applicability.Meanwhile by using
Vertical mode so that before sensor is fixed, can be at plumbness under gravity, therefore ensure that it in checkout procedure
It is always uniaxial force, inspection Result Precision has been effectively ensured.
The overall process that the utility model is examined to displacement transducer realizes Automated condtrol, has automatic storage, calculates
The function of achievement is examined with output, intelligentized operation is realized in just sincere justice, can effectively avoid human error, ensure to examine
Quality meets to require.
The utility model is also easy to operate and grasped for this professional general staff, not only greatly reduces artificial
Labor intensity, operating efficiency is improved, and can effectively reduce personnel cost.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is workflow schematic diagram of the present utility model；
Fig. 3~Fig. 8 is clamp structure schematic diagram of the present utility model.
Embodiment
This further describes the utility model below in conjunction with the accompanying drawings.In the utility model, servomotor 2 is conventional equipment,
For example with Siemens V90 series.Sensor interface is directly and data acquisition module（For example base health SMARTDATA2000 modules）
Connection, it can directly gather, data storage etc., be then connected with host computer.Collecting method is existing automation collection method,
But the processing of data is can to use the program voluntarily worked out, the functions such as data classification, screening, calculating and result output are realized.
Can multi-angle regulation bulb 6 i.e. use bulb attachment structure, the structure carries ball head locking structure, such as Fotopro FPH clouds
Ball head structure and spheroid locking knob 7 in platform series.Input control parameter device of the display 10 as host computer, Ke Yipei
Standby keyboard directly uses touch-screen.
As shown in figure 1, the utility model includes a cuboid shell body 1, cuboid shell body 1 can divide according to function division
For two regions, wherein left area is the area of observation coverage, and right half area is inspection area.
A servomotor 2 is installed at the top of inspection area, and a motion thread bar 3, servomotor 2 are connected with servomotor 2
Motion thread bar 3 can be driven to rotate.There are floating holder 4 and stationary fixture 5 on motion thread bar 3, ball is connected with floating holder 4
First 6, there is spheroid locking knob 7 on bulb 6.A displacement transducer 8 is connected between floating holder 4 and stationary fixture 5.
Close to top sides along there is a horizontal levelling bubble 9, horizontal levelling bubble 9 is integrally the area of observation coverage to judge the utility model
It is no to be in horizontality.The area of observation coverage also has a vertical level to steep 11 by left side edge（Used when shell body 1 is horizontal）.The area of observation coverage
The angle of bottom four have an adjustable pedestal 13, have adjusting knob 105 on adjustable pedestal 13, adjusting knob 105 controls
The lifting of adjustable pedestal 13 is of the present utility model horizontal and vertical to adjust.
The area of observation coverage has a display 10, and display 10 can be to setting inspection parameter, checkout procedure, input and output achievement etc. to enter
Row is set, and checkout procedure and achievement are shown on a display screen.The top of the area of observation coverage be four interfaces 101 being distributed side by side,
Interface 102, interface 103, interface 104, interface 101 can access vibrating wire instrument, and interface 102 can access differential-resistance meter, interface
103 can access potentiometer type instrument, and interface 104 can access data acquisition module.
The utility model attaching plug 12 accesses external power source, and stabilized power source is provided for the utility model.
As shown in Fig. 2 it is workflow of the present utility model：
The first step：Indoor preparation.By producer's data, the type and model of sensor 8 are determined.This practicality of trial inspection is new
Whether type energization, display screen etc. are normal.
Second step：Leveling.First, whether placed in the middle horizontal levelling bubble 9 is observed.If not placed in the middle, pass through adjusting knob
The lifting of 105 control adjustable pedestals 13 adjusts, it is ensured that the utility model is generally in level.
3rd step：Fixed sensor.Spheroid locking knob 7 is unclamped so that floating holder 4 is in free state（Vertically
State）.Then the one end of sensor 8 is fixed on floating holder 4, screws spheroid locking knob 7.Then servomotor 2 is started,
Driving the rotation of motion thread bar, toward the activity of the side of stationary fixture 5, the other end to sensor 8 will connect to drive floating holder 4
During nearly stationary fixture 5, servomotor 2 is closed, then manual fine-tuning so that sensor 8 enters in stationary fixture 5, finally checks
Whether sensor 8 with the fixture at both ends consolidates connection.
4th step：Program is set.Inspection parameter, checkout procedure, input and output achievement etc. are set at display 10
Put, then by the type according to sensor 8, its cable accessed in one of them of corresponding interface 101,102,103,
Data acquisition module is connected with interface 104.
5th step：Examine.Start the utility model, it is by internal processes or imports coding to control servomotor 2
Motion, so as to the process of control test, backhaul, and inspection data is gathered, stored and exported eventually through data acquisition module.
As shown in Fig. 3~8, the fixture that is used for the utility model, including base 21, lid 23 and with driven wheel of differential
25 threaded rod 26；Base 21 is disc, and there is a coaxial clyinder its upper surface, and there is a connecting hole 211 cylinder upper surface,
The inwall processing of connecting hole 211 has screw thread；There are 6 latch segments 24 along end face circumference equidistantly distributed the outer face of lid 23, locking
The lower end of block 24 is connected with threaded rod 26, is rotating ring 22 between lid 23 and base 21, there is a connecting pole 231 in lid 23, even
Connect and the first positioning hole 233 is provided with post 231, the second positioning hole 232 is provided with the madial wall of lid 23, lid 23 is provided with end face
Slippage slot 234；There is a driving bevel gear 221 on rotating ring 22, threaded through hole is provided with the end face of driving bevel gear 221
222.Lid 23 and connecting pole 231 are cylinder, and coaxial, the edge of the first positioning hole 233 is justified in the end face of connecting pole 231 and lid 23
The end face circumferencial direction equidistantly distributed of connecting pole 231, the second positioning hole 232 equidistantly divide along the end face circumferencial direction of lid 23
Cloth, the first positioning hole 233 and the second positioning hole 232 are contour.
The cross section of latch segment 24 is connected in sector, the inner surface of latch segment 24 with rubber sheet gasket 241, the lower section of latch segment 24
It is connected with sliding shoe 243, screwed hole 242 is provided with sliding shoe 243.
Further, it is provided with bearing in the first positioning hole 233 and the second positioning hole 232.
During actual use, by the sliding shoe 43 of the lower end of latch segment 24 through the sliding groove 234 on lid 23, then by screw thread
Bar 26 is screwed in the screwed hole 242 of latch segment 24 lower end, and the first positioning hole 233 and the are inserted in the both ends of threaded rod 26 respectively
In two positioning holes 232, then connecting pole 231 is inserted on rotating ring 22 in the through hole 222 of the end face of driving bevel gear 221, connected
The end of post 231 is fastenedly connected with the screwed hole 211 on base 21 again, completes assembling.Need the clamping internal diameter of adjustment latch segment 24
When, rotating ring 22 is rotated first so that the circle of outer face of six latch segments 24 along lid 23 is radially movable to appropriate location,
Ensure that sensor 8 can be freely put into.Then, opposite direction rotation rotating ring 22, when six latch segments 24 along circle it is radially movable to
After sensor 8 is bonded, continue to screw 22 liang of ring to three circles, you can stop, now sensor 8 is reliably fixed.
Claims (3)
- A kind of 1. displacement transducer upright intelligent check meter, it is characterised in that：Including the coaxial stationary fixture of vertical direction（5）And floating holder（4）；The floating holder（4）Moving direction it is consistent with axis, and floating holder（4）Successively with can multi-angle regulation bulb （6）, motion thread bar（3）, servomotor（2）It is connected, can multi-angle regulation bulb（6）On be provided with spheroid locking knob（7）；The servomotor（2）It is connected with host computer；The stationary fixture（5）It is fixedly connected on shell body（1）Bottom；The shell body（1）On be provided with display（10）；The shell body（1）On be provided with data collection module interface, vibrating wire instrument interface, differential-resistance meter interface and current potential Device formula tool interface system.
- A kind of 2. displacement transducer upright intelligent check meter according to claim 1, it is characterised in that：The shell body （1）On be provided with horizontal levelling bubble（9）.
- A kind of 3. displacement transducer upright intelligent check meter according to claim 1, it is characterised in that：The shell body （1）Bottom is provided with adjustable pedestal（13）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720787291.2U CN207180636U (en) | 2017-07-03 | 2017-07-03 | Vertical intelligent tester for displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720787291.2U CN207180636U (en) | 2017-07-03 | 2017-07-03 | Vertical intelligent tester for displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207180636U true CN207180636U (en) | 2018-04-03 |
Family
ID=61735193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720787291.2U Active CN207180636U (en) | 2017-07-03 | 2017-07-03 | Vertical intelligent tester for displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207180636U (en) |
-
2017
- 2017-07-03 CN CN201720787291.2U patent/CN207180636U/en active Active
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