CN106679601A - Multifunctional length calibrating device and calibrating method thereof - Google Patents
Multifunctional length calibrating device and calibrating method thereof Download PDFInfo
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- CN106679601A CN106679601A CN201611267274.2A CN201611267274A CN106679601A CN 106679601 A CN106679601 A CN 106679601A CN 201611267274 A CN201611267274 A CN 201611267274A CN 106679601 A CN106679601 A CN 106679601A
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- ball bar
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
- G01B21/042—Calibration or calibration artifacts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
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- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention relates to a multifunctional length calibrating device and a calibrating method thereof. The multifunctional length calibrating device comprises supporting stands, a bridge type leveling ruler, a linear guide rail, a measuring rod calibrating device, and a ball grid standard device. The bridge type leveling ruler is fixed on the top of the supporting stands. The linear guide rail is fixed on the bridge type leveling ruler. The measuring rod calibrating device and the ball grid standard device are arranged on the two ends of the bridge type leveling ruler respectively. The multifunctional length calibrating device is reasonable in structural design, low in cost, wide in measuring range, low in measuring cost and high in measuring precision, and is convenient to maintain.
Description
Technical field
The present invention relates to a kind of multifunctional length calibrating installation and its calibration steps, are a set of length metering standard dresses
Put.
Background technology
Length metering is the most basic amount in a country or an area, and China has determined that length metering body early in last century
System, with the continuous development of science and technology, length standard develops into optical maser wavelength from metric system prototype part, but as amount biography
Terminating stage measurement technology mechanism at county level, or carry out building scalar biography as standard using material measure and micrometer device.In recent years,
With the development of integrated electronic circuit, micrometer device has significant progress, grating, magnetic grid, ball bar etc. to survey long technology day by day
Maturation, mixes electronic digital display device so that large scale length can continuous direct reading measurement.The development of inductance measurement technique, makes
Obtain micrometer resolution to improve constantly, in ± 10 μm of measurement range, high resolution is up to 0.01 μm.For large-sized precision is surveyed
Amount, generally uses laser interferometer, tracker or optic.But larger, essence is put into at county level, level mechanism of area
Spend high point 3m optics to estimate to will be about 50 ~ 700,000 yuan, and the supporting requirement of laboratory environment is also higher, operation
Expense is also larger, for the length metering of service County Level Regional seems not economical enough.How treatment in accordance with local conditions ground is using modern length
Measurement cutting edge technology, integrated innovation research is adapted to the problem that locality length magnitude tracing demand is technical body research at county level, builds
The length metering standard of vertical invention is technical body at county level and enterprise development trend.
The content of the invention
The technical problem to be solved is to overcome the above-mentioned deficiency in the presence of prior art, and designs one kind and set
Meter is reasonable, measurement range is wide, measurement cost is low, certainty of measurement is high a kind of multifunctional length calibrating installation and its calibration steps.
The present invention solves the technical scheme that adopted of above-mentioned technical problem：A kind of multifunctional length calibrating installation, it is special
Levy and be：It includes support base, bridge type leveling ruler, line slideway, gauge rod calibrating installation, ball bar standard set-up, and bridge type leveling ruler is fixed
At the top of support base, line slideway is fixed on bridge type leveling ruler, and gauge rod calibrating installation and ball bar standard set-up are separately mounted to
The two ends of bridge type leveling ruler.Two devices share one group of bridge type leveling ruler, line slideway, realize the function of set of device multiple use,
The compatible assay device of other length measuring devices measurement calibrations, alternative traditional straight steel ruler and ribbon, it is easy to operate,
Accuracy of reading；Simultaneously cost is greatly reduced, save resource.
Described gauge rod calibrating installation includes that miniature slide block and mobile slide block are arranged on line slideway, a fixed seat peace
One end of line slideway is mounted in, a fixed seat is fixed on bridge type leveling ruler, miniature slide block is located at a fixed seat and mobile cunning
Between block；No. two fixed seats are fixed on mobile slide block；Anvil head, a fixed seat are provided with the top of No. two described fixed seats
Top be provided with mini-inductance measurement head, anvil head and the first-class height of mini-inductance measurement；The front end of mini-inductance measurement head is provided with microsprings, after
End electrically connects with inductance amesdial；Described described miniature slide unit has two, and on miniature slide unit vee-block is provided with.
Gauge rod calibrating installation adopts comparative method for measuring, is exactly on two support vee-blocks of device, to place standard gauge rod,
One contact with fixed anvil head, one with the probe contacts of inductance amesdial, adjust the two miniature slide units in centre, make electrical sensing
Micro- instrument reading is maximum, and this reading is indicated value X of standard gauge rod.Then standard gauge rod is removed, tested gauge rod is placed on into vee-block
On, with same method, indicated value X of tested gauge rod is read on inductance amesdiali, then two indicated values are compared
Compared with obtaining actual measurement deviation e of tested gauge rod.I.e.：e=Xi- X+ δ, δ are the actual measurement deviation of standard gauge rod.
Fine setting module is provided with the new miniature slide unit of this practicality, vee-block is fixed in fine setting module.Fine setting module is used
In the height and right position that adjust vee-block.
Described ball bar standard set-up includes that ball bar bar, ball bar gauge head, ball bar display instrument, standard straight steel ruler, reading amplify
Instrument, slide block, described bridge type leveling ruler is fixed on the top of support base, and line slideway, standard straight steel ruler are fixed on bridge type leveling ruler,
The two ends of ball bar bar respectively pass through a fixed block, and fixed block is fixed on bridge type leveling ruler, and described line slideway, standard steel are straight
Chi, ball bar bar are parallel to each other；Described slide block is arranged on line slideway, and reading enlarging instrument is arranged on slide block, and reading amplifies
The photographic head of instrument is located at the surface of standard straight steel ruler；Described ball bar gauge head passes through ball bar bar, ball bar gauge head to be arranged on slide block
On, ball bar gauge head is electrically connected with reading enlarging instrument, and ball bar gauge head is electrically connected with ball bar display instrument.
Ball bar standard set-up is used to measure the error of indication of straight steel ruler and ribbon, and its principle is：Measured using direct-reading method,
Standard is made with the ball bar on device, tested straight steel ruler or ribbon is placed on standard straight steel ruler, open reading enlarging instrument,
By the baseline alignment ribbon on reading enlarging instrument screen or the scale of straight steel ruler, numerical value is directly read from ball bar display instrument,
The difference of as ribbon or straight steel ruler physical length, scale value and actual value is the error of indication.
Handle is provided with slide block of the present invention.Holding handle can drag slide block, and reading enlarging instrument is moved to into needs
The position of reading.
Fixed block of the present invention is fixed on bridge type leveling ruler, and nut is provided with fixed block.Unclamp nut, Ke Yiyi
The position of dynamic adjustment ball bar bar；Nut is tightened, ball bar bar is fixed.
Standard straight steel ruler of the present invention is fixed on bridge type leveling ruler by briquetting, and tightening nut is provided with briquetting.
Tightening nut is unclamped, briquetting unclamps, can be with the position of adjustment criteria straight steel ruler；Tighten tightening nut, briquetting is by standard straight steel ruler
It is fixed.
The bottom of the new support base of this practicality is provided with cushion blocking, and the material of cushion blocking is rubber, for vibration isolation.
The new described support base of this practicality is provided with fine sand with the contact position of bridge type leveling ruler, for vibration isolation.
The present invention is installed indoors, and installs constant temperature air conditioning system additional, linear measure longimetry is entered under the environmental condition of standard
OK, influence amount of the temperature to material measure indicating value is reduced.Ensure that the accuracy of magnitude tracing.
Present invention also offers a kind of calibration steps of multifunctional length calibrating installation, it is characterised in that：It includes two kinds
Calibration steps, a kind of is the deviation for measuring outside micrometer check and correction gauge rod, and another kind is for measuring straight steel ruler and steel
The error of indication of tape measure；
The method of deviation of measurement outside micrometer check and correction gauge rod is：Using comparative method for measuring, support at two on vee-block,
Placement standard gauge rod, one contact with fixed anvil head, one with the probe contacts of inductance amesdial, adjust centre two miniature
Slide unit, makes inductance amesdial reading maximum, and this reading is indicated value X of standard gauge rod；Then standard gauge rod is removed, will be measured
Bar is placed on vee-block, with same method, indicated value X of tested gauge rod is read on inductance amesdiali, then to two
Indicated value is compared, and obtains actual measurement deviation e of tested gauge rod；I.e.：e=Xi- X+ δ, δ are the actual measurement deviation of standard gauge rod；
The method of the error of indication of measurement straight steel ruler and ribbon is：Measured using direct-reading method, with the ball bar on device standard is done
Device, tested straight steel ruler or ribbon is placed on standard straight steel ruler, reading enlarging instrument is opened, by reading enlarging instrument screen
Baseline is directed at the scale of ribbon or straight steel ruler, and numerical value, as ribbon or straight steel ruler reality are directly read from ball bar display instrument
The difference of border length, scale value and actual value is the error of indication.
The present invention compared with prior art, with following positive effect：Reasonable in design, using modern electromechanical manufacture first
Enter technology, using the standard parts and components of market purchasing, carry out integrated assembling, form new function, and maximized utilize zero
Component function.Calibrate outside micrometer check and correction gauge rod when, the method that standard gauge rod is added using digital display inductance amesdial, with
Gauging machine or laser interferometer measurement compare, and wide with measurement range, measurement cost is low, the characteristics of with strong points.
Compare with traditional straight steel ruler and ribbon calibrating apparatus, present invention employs 4m ball bars as standard,
There is high precision than standard linear scale, intuitive display, error in reading is little；The present invention adopts enlarging instrument when reading by dipping scale
Alignment device, improves the concordance and repeatability of scale alignment；The pattern of traditional length magnitude tracing is breached, is opened
New approach, especially traces to the source ribbon and straight steel ruler, using advanced technologies such as scale-amplifying reading, digital display readings, makes
Work must be measured convenient, directly perceived, accurate；Simultaneously low cost of the present invention, easy to maintenance, and certainty of measurement is high.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of gauge rod calibrating installation in the present invention.
Fig. 3 is the structural representation of ball bar standard set-up in the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings and by embodiment the invention will be further described.
Embodiment：
Referring to Fig. 1~Fig. 3, the present embodiment includes support base 1, bridge type leveling ruler 2, line slideway 3, gauge rod calibrating installation, ball bar mark
Standard apparatus, bridge type leveling ruler 2 is fixed on the top of support base 1, and line slideway 3 is fixed on bridge type leveling ruler 2, gauge rod calibrating installation and
Ball bar standard set-up is separately mounted to the two ends of bridge type leveling ruler 2.
Described gauge rod calibrating installation includes miniature slide unit 4, the mobile fixed seat 8 of fixed seat 7, two of slide block 5, electricity
Sense micrometer head 9, inductance amesdial 6；Described bridge type leveling ruler 2 is fixed on the top of support base 1, and line slideway 3 is fixed on bridge type
On leveling ruler 2；Miniature slide block and mobile slide block 5 are arranged on line slideway 3, and a fixed seat 7 is arranged on the one of line slideway 3
End a, fixed seat 7 is fixed on bridge type leveling ruler 2, and miniature slide block is located between a fixed seat 7 and mobile slide block 5；No. two solid
Reservation 8 is fixed on mobile slide block 5；The top of No. two described fixed seats 8 is provided with anvil head 10, the top of a fixed seat 7
Mini-inductance measurement head 9 is provided with, anvil head 10 and mini-inductance measurement head 9 are contour；The front end of mini-inductance measurement head 9 is provided with microsprings, after
End electrically connects with inductance amesdial 6；Described described miniature slide unit 4 has two, and vee-block 11 is provided with miniature slide unit 4.
In the present embodiment, fine setting module 12 is provided with miniature slide unit 4, vee-block 11 is fixed in fine setting module 12.Fine setting
Module 12 is used to adjust the height and right position of vee-block 11.
In the present embodiment, the bottom of support base 1 is provided with cushion blocking 13, and the material of cushion blocking 13 is rubber, for vibration isolation.
In the present embodiment, support base 1 is provided with fine sand with the contact position of bridge type leveling ruler 2, for vibration isolation.
The present embodiment is installed indoors, and installs constant temperature air conditioning system additional, enables linear measure longimetry under the environmental condition of standard
Carry out, reduce influence amount of the temperature to material measure indicating value.Ensure that the accuracy of magnitude tracing.
The installation process of the present embodiment is：Support base 1 is placed on the ground, then installs bridge type leveling ruler 2；With bridge type leveling ruler
On the basis of 2 plane, line slideway 3 is installed；Then on the basis of line slideway 3, slide unit component and inductance amesdial 6 are installed,
Finally carry out whole machine precision adjustment.
When line slideway 3 is installed, because line slideway 3 is long, easily deform in the longitudinal direction, therefore adopt floating-point
Method is fixed, i.e., first line slideway 3 is placed on bridge type leveling ruler 2, tentatively adjusts guide rail parallel with the side of bridge type leveling ruler 2
Degree, then accomplishes fluently in certain intervals screwed hole, gently screws on screw, should not overwind, then straight with laser interferometer measurement
The linearity of line guide rail 3, if overproof, is adjusted with side guide, until meet requiring, last fixing screws.
After installation, systematic function is as follows：
Linearity≤the 0.4mm/3m of line slideway 3；
The digital display mini-inductance measurement error of indication≤± 0.0001mm；
Gauge rod measurement reproducibility≤1 μm.
The measuring method of the present embodiment is：Using comparative method for measuring, two in device are supported on vee-block 11, place mark
Quasi- gauge rod, by adjusting mobile slide block 5, makes standard gauge rod one contact with the anvil head 10 of fixation, one with inductance amesdial 6
Probe contacts；Then the fine setting module 12 in the middle of adjusting on two miniature slide units 4, makes the reading of inductance amesdial 6 maximum, this reading
For indicated value X of standard gauge rod.Then standard gauge rod is removed, tested gauge rod is placed on vee-block 11, with same method,
Indicated value X of tested gauge rod is read on inductance amesdial 6i, then two indicated values are compared, obtain tested gauge rod
Actual measurement deviation e.I.e.：e=Xi- X+ δ, δ are the actual measurement deviation of standard gauge rod.
In the present embodiment, described ball bar standard set-up includes ball bar bar 21, ball bar gauge head 22, ball bar display instrument 23, mark
Quasi- straight steel ruler 24, reading enlarging instrument 25, slide block 26, described bridge type leveling ruler 2 is fixed on the top of support base 1, line slideway 3,
Standard straight steel ruler 24 is fixed on bridge type leveling ruler 2, and the two ends of ball bar bar 21 respectively pass through a fixed block 29, fixed block 29 to be fixed on
On bridge type leveling ruler 2, described line slideway 3, standard straight steel ruler 24, ball bar bar 21 are parallel to each other；Described slide block 26 is arranged on
On line slideway 3, reading enlarging instrument 25 is arranged on slide block 26, and the photographic head 27 of reading enlarging instrument 25 is located at standard straight steel ruler 24
Surface；Described ball bar gauge head 22 pass through ball bar bar 21, ball bar gauge head 22 be arranged on slide block 26 on, ball bar gauge head 22 with read
Number enlarging instrument 25 is electrically connected, and ball bar gauge head 22 is electrically connected with ball bar display instrument 23.
The present embodiment is the error of indication for measuring straight steel ruler and ribbon, and its principle is：Measured using direct-reading method, used
Ball bar on device makees standard, and tested straight steel ruler or ribbon are placed on standard straight steel ruler 24, opens reading enlarging instrument
25, the baseline alignment ribbon on the screen of reading enlarging instrument 25 or the scale of straight steel ruler are directly read from ball bar display instrument 23
Peek value, the difference of as ribbon or straight steel ruler physical length, scale value and actual value is the error of indication.
In the present embodiment, handle 28 is provided with slide block 26.Holding handle 28 can drag slide block 26, by reading enlarging instrument 25
Moving to needs the position of reading.
In the present embodiment, fixed block 29 is fixed on bridge type leveling ruler 2, and nut 30 is provided with fixed block 29.Unclamp nut
30, the position of adjustment ball bar bar 21 can be moved；Nut 30 is tightened, ball bar bar 21 is fixed.
In the present embodiment, standard straight steel ruler 24 is fixed on bridge type leveling ruler 2 by briquetting 31, is provided with briquetting 31 elastic
Nut 32.Tightening nut 32 is unclamped, briquetting 31 unclamps, can be with the position of adjustment criteria straight steel ruler 24；Tightening nut 32 is tightened, is pressed
Block 31 fixes standard straight steel ruler 24.
In the present embodiment, the bottom of support base 1 is provided with cushion blocking 13, and the material of cushion blocking 13 is rubber, for vibration isolation.
In the present embodiment, support base 1 is provided with fine sand with the contact position of bridge type leveling ruler 2, for vibration isolation.
The installation process of the present embodiment is：Support base 1 is placed on the ground, then installs bridge type leveling ruler 2；With bridge type leveling ruler
On the basis of 2 plane, line slideway 3 is installed；Then on the basis of line slideway 3, ball bar bar 21, ball bar gauge head 22 is installed, is read
Number enlarging instrument 25, finally carries out whole machine precision adjustment.
When line slideway 3 is installed, because line slideway 3 is long, easily deform in the longitudinal direction, therefore adopt floating-point
Method is fixed, i.e., first line slideway 3 is placed on bridge type leveling ruler 2, tentatively adjusts guide rail parallel with the side of bridge type leveling ruler 2
Degree, then accomplishes fluently in certain intervals screwed hole, gently screws on screw, should not overwind, then straight with laser interferometer measurement
The linearity of line guide rail 3, if overproof, is adjusted with side guide, until meet requiring, last fixing screws.
After installation, systematic function is as follows：
Linearity≤the 0.4mm/3m of line slideway 3；
Ball bar positions the error of indication≤± 0.05mm；
Strain line measurement reproducibility≤0.20mm.
The standard of straight steel ruler and ribbon measuring system adopt ball bar display instrument 23, resolution 0.01mm, accuracy ±
0.05mm, tested straight steel ruler is placed on standard straight steel ruler 24, and by reading enlarging instrument 25 tested straight steel ruler scale is directed at, and reads ball
The reading of grid display instrument 23, you can know the error of indication of straight steel ruler.
Specifically measuring method is：Tested straight steel ruler is placed on standard straight steel ruler 24, before tested straight steel ruler zero point is close to
Briquetting 31, side is close to side pressing block 31, opens reading enlarging instrument 25, tested straight steel ruler zero graduation is directed at, ball bar display instrument 23
Reset；Then joystick 28 makes reading photographic head 27 move on line slideway 3, by the baseline on the screen of reading enlarging instrument 25
The scale of tested straight steel ruler is directed at, on ball bar display instrument 23 reading is recorded.Multiple points can be chosen to measure, such as 100mm,
500mm, 1000mm, and the reading of record is compared with the scale of standard straight steel ruler 24, recording error.
In the present embodiment, two kinds of measuring apparatus can be shared, if wherein a set of equipment needs the product length mistake of measurement
Long, another complete equipment can pass through one end that line slideway 3 moves on to bridge type leveling ruler 2, concede space.Two complete equipments share one group of bridge
Type is flat 2, line slideway 3, realizes the function of set of device multiple use, compatible other length measuring devices measurement calibrations, can
The assay device of the traditional straight steel ruler of replacement and ribbon, easy to operate, accuracy of reading；Simultaneously cost is greatly reduced, saved
Resource.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, as long as its part does not specify concrete shape
Shape and size, then the part can be any shape and size being adapted with its structure；Meanwhile, the title that part is taken
Can be with difference.The equivalent or simple change that all constructions according to described in inventional idea of the present invention, feature and principle are done, is included in
In the protection domain of patent of the present invention.
Claims (8)
1. a kind of multifunctional length calibrating installation, it is characterised in that：It includes support base, bridge type leveling ruler, line slideway, gauge rod school
Standard apparatus, ball bar standard set-up, bridge type leveling ruler is fixed on the top of support base, and line slideway is fixed on bridge type leveling ruler, gauge rod
Calibrating installation and ball bar standard set-up are separately mounted to the two ends of bridge type leveling ruler；
Described gauge rod calibrating installation includes that miniature slide block and mobile slide block are arranged on line slideway, and a fixed seat is arranged on
One end of line slideway a, fixed seat is fixed on bridge type leveling ruler, miniature slide block be located at fixed seat and mobile slide block it
Between；No. two fixed seats are fixed on mobile slide block；Anvil head, the top of a fixed seat are provided with the top of No. two described fixed seats
Portion is provided with mini-inductance measurement head, anvil head and the first-class height of mini-inductance measurement；The front end of mini-inductance measurement head is provided with microsprings, rear end with
Inductance amesdial is electrically connected；Described described miniature slide unit has two, and on miniature slide unit vee-block is provided with；
Described ball bar standard set-up includes ball bar bar, ball bar gauge head, ball bar display instrument, standard straight steel ruler, reading enlarging instrument, cunning
Block, described bridge type leveling ruler is fixed on the top of support base, and line slideway, standard straight steel ruler are fixed on bridge type leveling ruler, ball bar
The two ends of bar respectively pass through a fixed block, fixed block to be fixed on bridge type leveling ruler, described line slideway, standard straight steel ruler, ball
Grid bar is parallel to each other；Described slide block is arranged on line slideway, and reading enlarging instrument is arranged on slide block, and reading enlarging instrument is taken the photograph
As head is located at the surface of standard straight steel ruler；Described ball bar gauge head passes through ball bar bar, ball bar gauge head to be arranged on slide block, ball bar
Gauge head is electrically connected with reading enlarging instrument, and ball bar gauge head is electrically connected with ball bar display instrument.
2. multifunctional length calibrating installation according to claim 1, it is characterised in that：Handle is provided with the slide block.
3. multifunctional length calibrating installation according to claim 1 and 2, it is characterised in that：Described fixed block is fixed on
On bridge type leveling ruler, nut is provided with fixed block.
4. multifunctional length calibrating installation according to claim 3, it is characterised in that：Described standard straight steel ruler is by pressure
Block is fixed on bridge type leveling ruler, and tightening nut is provided with briquetting.
5. multifunctional length calibrating installation according to claim 1 and 2, it is characterised in that：The bottom of the support base sets
It is equipped with cushion blocking.
6. multifunctional length calibrating installation according to claim 5, it is characterised in that：Described support base and bridge type leveling ruler
Contact position be provided with fine sand.
7. multifunctional length calibrating installation according to claim 1, it is characterised in that：It is provided with the miniature slide unit micro-
Mode transfer block, vee-block is fixed in fine setting module.
8. a kind of calibration steps according to the arbitrary described multifunctional length calibrating installation of claim 1-7, it is characterised in that：It
Including two kinds of calibration steps, a kind of is the deviation for measuring outside micrometer check and correction gauge rod, and another kind is for measuring steel
The error of indication of ruler and ribbon；
The method of deviation of measurement outside micrometer check and correction gauge rod is：Using comparative method for measuring, support at two on vee-block,
Placement standard gauge rod, one contact with fixed anvil head, one with the probe contacts of inductance amesdial, adjust centre two miniature
Slide unit, makes inductance amesdial reading maximum, and this reading is indicated value X of standard gauge rod；Then standard gauge rod is removed, will be measured
Bar is placed on vee-block, with same method, indicated value X of tested gauge rod is read on inductance amesdiali, then to two
Indicated value is compared, and obtains actual measurement deviation e of tested gauge rod；I.e.：e=Xi- X+ δ, δ are the actual measurement deviation of standard gauge rod；
The method of the error of indication of measurement straight steel ruler and ribbon is：Measured using direct-reading method, with the ball bar on device standard is done
Device, tested straight steel ruler or ribbon is placed on standard straight steel ruler, reading enlarging instrument is opened, by reading enlarging instrument screen
Baseline is directed at the scale of ribbon or straight steel ruler, and numerical value, as ribbon or straight steel ruler reality are directly read from ball bar display instrument
The difference of border length, scale value and actual value is the error of indication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611267274.2A CN106679601A (en) | 2016-12-31 | 2016-12-31 | Multifunctional length calibrating device and calibrating method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611267274.2A CN106679601A (en) | 2016-12-31 | 2016-12-31 | Multifunctional length calibrating device and calibrating method thereof |
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| CN106679601A true CN106679601A (en) | 2017-05-17 |
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| CN201611267274.2A Pending CN106679601A (en) | 2016-12-31 | 2016-12-31 | Multifunctional length calibrating device and calibrating method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051236A (en) * | 2018-01-31 | 2018-05-18 | 中国测试技术研究院机械研究所 | A kind of long length baseline |
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| CN108051236B (en) * | 2018-01-31 | 2019-11-15 | 中国测试技术研究院机械研究所 | A kind of long length baseline |
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