CN106959122A - A kind of horizon rule high-precision calibration device and calibration method - Google Patents
A kind of horizon rule high-precision calibration device and calibration method Download PDFInfo
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- CN106959122A CN106959122A CN201710313220.3A CN201710313220A CN106959122A CN 106959122 A CN106959122 A CN 106959122A CN 201710313220 A CN201710313220 A CN 201710313220A CN 106959122 A CN106959122 A CN 106959122A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 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 abstract description 16
- 230000007246 mechanism Effects 0.000 claims description 22
- 239000007787 solid Substances 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000009434 installation Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
- G01C9/24—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble
- G01C9/34—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble of the tubular type, i.e. for indicating the level in one direction only
Abstract
The invention discloses a kind of horizon rule high-precision calibration device, including pedestal, leveling supporting legs are provided with base bottom, stepper motor and shaft seating are fixed with pedestal, the rotating shaft of the stepper motor, which is located in shaft seating and rotated with shaft seating, to be connected, calibration platform is fixedly arranged at the front end with rotating shaft, the horizontal columns for leveling are provided with calibration platform, horizontal concrete chute is provided with calibration platform, left shelves seat and right shelves seat are slidably connected in horizontal concrete chute, being provided with pedestal is used for the standard strain line scale that the horizon rule linear scale error of indication is calibrated；The horizon rule error of zero calibration method that is carried out using said apparatus, horizon rule scale division value position error calibrating method.Calibration to different length, different size horizon rule is realized by left shelves seat and moving left and right for right shelves seat, practicality is higher；It is achieved thereby that a kind of simple to operate, calibration efficiency it is high, can rapid batch calibration horizon rule high-precision calibration device and calibration method.
Description
Technical field
The invention belongs to horizon rule collimation technique field, more particularly to a kind of horizon rule high-precision calibration device and calibration
Method.
Background technology
Horizon rule is a kind of principle of utilization liquid level, directly displays angular displacement with air level to measure measured surface phase
To horizontal level, upright position, obliquity departure degree a kind of measurement instrument.Country promulgated in 2002《JJF
1085-2002 horizon rule calibrating standards》, the error of indication of flatness, linear scale to horizon rule working face, the error of zero and point
Angle value error etc. has made calibration regulation, to ensure quality of the horizon rule during manufacture and use.
The calibration of current each parameter of horizon rule is mainly using adjustable flat board, private use plane parallel columns, Special 45-degree chi, specially
With calibration console, gauge block, dial gauge, by manually operated so that cumbersome, operating error is big, particularly in batch calibration process
In, it is particularly inconvenient.Publication No. 103528597A Chinese patent discloses a kind of horizon rule calibration method and its calibrator
Tool, it uses optical dividing head and fixture as calibrator, by being once loaded, you can complete to horizon rule horizontal level water
The calibration of the error of zero and scale division value error of bubble, plumb position bubble and 45 ° of position bubbles, with certain progressive, but
It is complex operation step, and optical dividing head and clamp precision are not high enough.Notification number is public for 205642396U Chinese patent
A kind of high-accuracy water leveling ruler calibrating installation based on sine is driven, it is by horizontal level, 90 ° of positions, 45 ° of positions, strain line
Chi indicating value and scale division value precision calibration operation are integrated on a set of equipment and completed, but its locating rod and the use time of location-plate
There can be error long to reduce its practicality, can only be calibrated for the horizon rule of regular length, and calibrate
During need passes locating rod and location-plate complex operation step.
The content of the invention
Originally turn over purpose and be and propose that a kind of operating procedure is simple, structure to solve above-mentioned problems of the prior art
Compact horizon rule high-precision calibration device and calibration method.
The present invention is adopted the technical scheme that to solve the above problems：A kind of horizon rule high-precision calibration device, including
Pedestal, is provided with leveling supporting legs, it is characterised in that stepper motor and shaft seating are fixed with pedestal in base bottom, described
The rotating shaft of stepper motor, which is located in shaft seating and rotated with shaft seating, to be connected, and calibration platform is fixedly arranged at the front end with rotating shaft,
The horizontal columns for leveling are provided with calibration platform, horizontal concrete chute is provided with calibration platform, the company of slip in horizontal concrete chute
Left shelves seat and right shelves seat are connected to, being provided with pedestal is used for the standard strain line scale that the horizon rule linear scale error of indication is calibrated, institute
Standard strain line scale is stated to set in left-right direction and positioned at the front of horizontal concrete chute；It is fixed with pedestal for detecting that rotating shaft is revolved
The high-precision angle sensor of gyration, the high-precision angle sensor constitutes closed-loop control mechanism with stepper motor and caused
Calibration platform forms multiple standard inclination angles.
It is preferred that, the left block seat includes horizontal segment and the L-shaped base of vertical section, is provided with horizontal segment along vertical
The perforation that direction is set, is furnished with screw rod in perforation, and the bottom of the screw rod is connected with sliding block, and the sliding block is located at horizontal concrete chute
It is interior and be slidably connected with horizontal concrete chute；It is furnished with the nut for firm banking on screw rod；The right block seat is with left block seat in a left side
It is right symmetrical.
It is preferred that, the horizontal concrete chute is dovetail groove, and the sliding block is the dovetail draw runner being adapted with horizontal concrete chute.
It is preferred that, the rotating shaft is located at the centre position of calibration platform.
The horizon rule error of zero calibration method carried out using above-mentioned leveling ruler high-precision calibration device, is comprised the following steps：
Horizon rule is placed on calibration platform first, then allows the zero graduation value of horizon rule linear scale and standard strain line to be carved
Horizon rule is fixedly clamped to carry out horizon rule linear scale by one of scale value alignment of degree, mobile left shelves seat and right shelves seat
The error of indication is calibrated；
Finally, by the rotational angle of closed-loop control mechanism precise control stepping motor rotating shaft so that calibration platform position
In different standard tilting positions, the calibration of the horizontal level error of zero, 45 ° of position zeros are carried out according to the standard inclination angle of calibration platform
Position calibrates for error or 90 ° of position zero-bits calibrate for error.
It is preferred that, the horizontal level error of zero calibration specifically includes following steps：
By the rotational angle of closed-loop control mechanism precise control stepping motor rotating shaft, until on calibration platform in horizontal columns
Air level is stable in center, then on read level chi in horizontal columns air level one end reading a1；Unclamp left shelves seat and
Horizon rule level is turned 180 ° by right shelves seat, and horizon rule is fixed in the same way, is write down according to one side of first time reading
The reading a of the air level other end2, the half of reading difference is the horizontal level error of zero twice.
It is preferred that, 45 ° of position zero-bits, which calibrate for error, specifically includes following steps：
By the rotational angle of closed-loop control mechanism precise control stepping motor rotating shaft, until on calibration platform in horizontal columns
Air level is stable in center, controls the rotating shaft of stepper motor to be rotated further 45 ° on this basis, then on read level chi
The reading b of air level one end in tilt column1；Unclamp left shelves seat and horizon rule level is turned 180 ° by right shelves seat, with same side
Formula fixes horizon rule, and the reading b of the air level other end is write down according to one side of first time reading2, the one of reading difference twice
Half is the horizontal level error of zero.
It is preferred that, 90 ° of position zero-bits, which calibrate for error, specifically includes following steps：
By the rotational angle of closed-loop control mechanism precise control stepping motor rotating shaft, until on calibration platform in horizontal columns
Air level is stable in center, controls the rotating shaft of stepper motor to be rotated further 90 ° on this basis, then on read level chi
The reading c of air level one end in vertical post1；Unclamp left shelves seat and horizon rule level is turned 180 ° by right shelves seat, with same side
Formula fixes horizon rule, and the reading c of the air level other end is write down according to one side of first time reading2, the one of reading difference twice
Half is the horizontal level error of zero.
The horizon rule scale division value position error calibrating method carried out using above-mentioned horizon rule high-precision calibration device, including it is as follows
Step：
Horizon rule is placed on calibration platform, mobile left shelves seat and right shelves seat fix horizon rule, then pass through closed loop
The rotational angle of controlling organization precise control stepping motor rotating shaft so that air level is directed at the left side or the right side in horizontal columns on horizon rule
The start line on side, then by the rotational angle of closed-loop control mechanism precise control stepping motor rotating shaft, each variable is water
The nominal division value of leveling ruler, changes the inclination angle of calibration platform every time, after air level in horizontal columns is stable, in one end of air level
Carry out reading d1,d2,d3..., dn；
In the same way in calibrated horizontal post air level another side, finally by formula Δ b=1- (bi-bi-1) calculate
Go out in scale division value error, formula：Δ b is the scale division value error of horizon rule, and unit is lattice；bi,bi-1It is the reading of horizon rule, unit
For lattice.
The advantageous effect of present invention is that：The closed-loop control constituted using high-precision angle sensor and stepper motor
Horizontal columns uses cooperatively in mechanism and calibration platform, you can control calibration platform forms multiple standard inclination angles, improves calibration
Precision, with to the calibration of the horizon rule linear scale error of indication, the calibration of the horizon rule horizontal level error of zero, 45 ° of position errors of zero
Calibration or the calibration that calibrates for error with scale division value error of 90 ° of position zero-bits, it is to avoid the random error that manual operation is brought, are improved
Calibration accuracy and the degree of accuracy；On the other hand, realized by left shelves seat and moving left and right for right shelves seat to different length, difference
The calibration of specification horizon rule, practicality is higher；It is achieved thereby that a kind of simple to operate, calibration efficiency it is high, can rapid batch calibration
Horizon rule high-precision calibration device and calibration method.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is Fig. 1 top view；
Fig. 3 is Fig. 1 right view；
Fig. 4 is use state figure one of the invention；
Fig. 5 is use state figure two of the invention；
Fig. 6 is use state figure three of the invention.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of horizon rule high-precision calibration device, including pedestal 6, in the bottom of pedestal 6
Provided with leveling supporting legs 7, stepper motor 1 and shaft seating 3 are fixed with pedestal 6, the rotating shaft 2 of the stepper motor 1, which is located at, to be turned
Rotate in shaft stool 3 and with shaft seating 3 and be connected, be fixedly arranged at the front end with calibration platform 5 in rotating shaft 2, the rotating shaft 2 is located at calibration
The centre position of platform 5, calibration platform 5 is provided with the horizontal columns 9 for leveling, and horizontal concrete chute 4, institute are provided with calibration platform 5
Horizontal concrete chute 4 is stated for dovetail groove, left shelves seat 8 and right shelves seat are slidably connected in horizontal concrete chute 4, being provided with pedestal 6 is used for
The error of indication of horizon rule linear scale 18 calibration standard strain line scale 17, the standard strain line scale 17 set in left-right direction and
Positioned at the front of horizontal concrete chute 4；The high-precision angle sensor for detecting the anglec of rotation of rotating shaft 2, institute are fixed with pedestal 6
High-precision angle sensor is stated with the composition closed-loop control mechanism of stepper motor 1 so that calibration platform 5 forms multiple standard inclination angles.
The left block seat 8 includes horizontal segment and the L-shaped base 10 of vertical section, provided with vertically on horizontal segment
The perforation of setting, is furnished with screw rod 11 in perforation, and the bottom of the screw rod 11 is connected with sliding block, and the sliding block is and horizontal concrete chute
The 4 dovetail draw runners being adapted, the sliding block is located in horizontal concrete chute 4 and is slidably connected with horizontal concrete chute 4；It is furnished with screw rod 11
Nut 12 for firm banking 10；The right block seat with left block seat is symmetrical repeats no more.
A kind of horizon rule error of zero calibration method carried out using above-mentioned calibrating installation, is comprised the following steps：
Horizon rule 14 is placed on calibration platform 5 first, the zero graduation value and standard of horizon rule linear scale 18 is then allowed
Horizon rule 14 is fixedly clamped to carry out by one of scale value alignment of strain line scale 17, mobile left shelves seat 8 and right shelves seat
The error of indication of horizon rule linear scale 18 is calibrated；
By the rotational angle of closed-loop control mechanism precise control stepping motor rotating shaft 2 so that calibration platform 5 is located at
The chi of level 14, is then placed on calibration platform 5 by different standard tilting positions, moves left shelves seat 8 and right shelves seat by horizon rule
14 are fixedly clamped, and the calibration of the horizontal level error of zero, 45 ° of position zero-bits are carried out finally according to the standard inclination angle of calibration platform 5
Calibrate for error or 90 ° of position zero-bits calibrate for error.
As shown in figure 4, the horizontal level error of zero calibration specifically includes following steps：
By the rotational angle of closed-loop control mechanism precise control stepping motor rotating shaft 2, until horizontal columns on calibration platform 5
Then air level is stable in 9 is placed on horizon rule 14 on calibration platform 5 in center, and mobile left shelves seat 8 and right shelves seat will
Horizon rule 14 is fixed, on read level chi 14 in horizontal columns 15 air level one end reading a1, then unclamp left shelves seat 8 and right shelves
Horizon rule level is turned 180 ° by seat, and horizon rule 14 is fixed in the same way, water is write down according to one side of first time reading
The reading a of the quasi- bubble other end2, the half of reading difference is the horizontal level error of zero twice.
As shown in figure 5,45 ° of position zero-bits calibrate for error and specifically include following steps：
By the rotational angle of closed-loop control mechanism precise control stepping motor rotating shaft 2, until horizontal columns on calibration platform 5
Air level is stable in center in 9, and then the rotating shaft 2 of control stepper motor is rotated further 45 ° on this basis, then by water
Leveling ruler 14 is placed on calibration platform 5, and mobile left shelves seat 8 and right shelves seat fix horizon rule 14, are tilted on read level chi 14
The reading b of air level one end in post 161, then unclamp left shelves seat 8 and horizon rule level turned 180 ° by right shelves seat, with same
Mode fixes horizon rule 14, and the reading b of the air level other end is write down according to one side of first time reading2, reading difference twice
Half be the horizontal level error of zero.
As shown in fig. 6,90 ° of position zero-bits calibrate for error and specifically include following steps：
By the rotational angle of closed-loop control mechanism precise control stepping motor rotating shaft 2, until horizontal columns on calibration platform 5
Air level is stable in center in 9, and then the rotating shaft 2 of control stepper motor is rotated further 90 ° on this basis, then by water
Leveling ruler 14 is placed on calibration platform 5, and mobile left shelves seat 8 and right shelves seat fix horizon rule 14, vertical on read level chi 24
The reading c of air level one end in post 131, then unclamp left shelves seat 8 and horizon rule level turned 180 ° by right shelves seat, with same
Mode fixes horizon rule 14, and the reading c of the air level other end is write down according to one side of first time reading2, reading difference twice
Half be the horizontal level error of zero.
A kind of horizon rule scale division value position error calibrating method carried out using above-mentioned calibrating installation, is comprised the following steps：
Horizon rule 14 is placed on calibration platform 5, mobile left shelves seat 8 and right shelves seat fix horizon rule 14, Ran Houtong
Cross the rotational angle of closed-loop control mechanism precise control stepping motor rotating shaft 2 so that air level in horizontal columns 15 on horizon rule 14
The start line on the left side or the right is directed at, then by the rotational angle of closed-loop control mechanism precise control stepping motor rotating shaft 2, often
The secondary variable is the nominal division value of horizon rule 41, changes the inclination angle of calibration platform 5 every time, treats that air level is stable in horizontal columns 15
Afterwards, reading d is carried out in one end of air level1,d2,d3..., dn；
In the same way in calibrated horizontal post 15 air level another side, finally by formula Δ b=1- (bi-bi-1) meter
Calculate in scale division value error, formula：Δ b is the scale division value error of horizon rule 14, and unit is lattice；bi,bi-1It is the reading of horizon rule 41
Number, unit is lattice.
Horizontal columns 9 on the closed-loop control mechanism and calibration platform 5 constituted using high-precision angle sensor and stepper motor 1
Use cooperatively, you can control calibration platform 5 form multiple standard inclination angles, with to the horizon rule linear scale error of indication calibration, water
The calibration of the horizontal level error of zero of leveling ruler 14,45 ° of position zero-bits calibrate for error or 90 ° of position zero-bits calibrate for error and missed with scale division value
The calibration of difference, it is to avoid the random error that manual operation is brought, improves calibration accuracy and the degree of accuracy；On the other hand, a left side is passed through
Shelves seat 8 and moving left and right for right shelves seat realize the calibration to different length, different size horizon rule 14, and practicality is higher；From
And realize a kind of simple to operate, calibration efficiency it is high, can rapid batch calibration horizon rule high-precision calibration device and calibration side
Method.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or to which part technical characteristic progress equivalent,
But these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (9)
1. a kind of horizon rule high-precision calibration device, including pedestal, leveling supporting legs are provided with base bottom, it is characterised in that
Stepper motor and shaft seating are fixed with pedestal, the rotating shaft of the stepper motor is located in shaft seating and turned with shaft seating
Dynamic connection, calibration platform is fixedly arranged at the front end with rotating shaft, and the horizontal columns for leveling are provided with calibration platform, in calibration platform
Horizontal concrete chute is provided with, left shelves seat and right shelves seat are slidably connected in horizontal concrete chute, being provided with pedestal is used for horizon rule line
The standard strain line scale of line chi error of indication calibration, the standard strain line scale is set and positioned at horizontal concrete chute in left-right direction
Front；The high-precision angle sensor for detecting the rotating shaft anglec of rotation, the High-precision angle sensing are fixed with pedestal
Device constitutes closed-loop control mechanism with stepper motor and make it that calibration platform forms multiple standard inclination angles.
2. horizon rule high-precision calibration device according to claim 1, it is characterised in that the left block seat includes horizontal segment
With the L-shaped base of vertical section, provided with the perforation vertically set on horizontal segment, it be furnished with screw rod, institute in perforation
The bottom for stating screw rod is connected with sliding block, and the sliding block is located in horizontal concrete chute and is slidably connected with horizontal concrete chute；Match somebody with somebody on screw rod
There is the nut for firm banking；The right block seat and left block seat are symmetrical.
3. horizon rule high-precision calibration device according to claim 2, it is characterised in that the horizontal concrete chute is dovetail
Groove, the sliding block is the dovetail draw runner being adapted with horizontal concrete chute.
4. horizon rule high-precision calibration device according to claim 3, it is characterised in that the rotating shaft is located at calibration platform
Centre position.
5. the horizon rule error of zero carried out using the horizon rule high-precision calibration device as described in any one of Claims 1-4
Calibration method, it is characterised in that comprise the following steps：
Horizon rule is placed on calibration platform first, zero graduation value and the standard strain line scale of horizon rule linear scale is then allowed
Horizon rule is fixedly clamped to carry out horizon rule linear scale indicating value by one of scale value alignment, mobile left shelves seat and right shelves seat
Calibrate for error；
Finally, by the rotational angle of closed-loop control mechanism precise control stepping motor rotating shaft so that calibration platform is located at not
Same standard tilting position, carries out the calibration of the horizontal level error of zero, 45 ° of position zero-bits and misses according to the standard inclination angle of calibration platform
Difference calibration or 90 ° of position zero-bits calibrate for error.
6. horizon rule error of zero calibration method according to claim 5, it is characterised in that the horizontal level zero-bit is missed
Difference calibration specifically includes following steps：
By the rotational angle of closed-loop control mechanism precise control stepping motor rotating shaft, until level in horizontal columns on calibration platform
Bubble is stable in center, then on read level chi in horizontal columns air level one end reading a1；Unclamp left shelves seat and right shelves
Horizon rule level is turned 180 ° by seat, and horizon rule is fixed in the same way, level is write down according to one side of first time reading
Steep the reading a of the other end2, the half of reading difference is the horizontal level error of zero twice.
7. horizon rule error of zero calibration method according to claim 5, it is characterised in that 45 ° of positions zero-bit is missed
Difference calibration specifically includes following steps：
By the rotational angle of closed-loop control mechanism precise control stepping motor rotating shaft, until level in horizontal columns on calibration platform
Bubble is stable in center, controls the rotating shaft of stepper motor to be rotated further 45 ° on this basis, is then tilted on read level chi
The reading b of air level one end in post1；Unclamp left shelves seat and horizon rule level is turned 180 ° by right shelves seat, it is solid in the same way
Surely horizon rule is lived, the reading b of the air level other end is write down according to one side of first time reading2, twice the half of reading difference be
For the horizontal level error of zero.
8. horizon rule error of zero calibration method according to claim 5, it is characterised in that 90 ° of positions zero-bit is missed
Difference calibration specifically includes following steps：
By the rotational angle of closed-loop control mechanism precise control stepping motor rotating shaft, until level in horizontal columns on calibration platform
Bubble is stable in center, controls the rotating shaft of stepper motor to be rotated further 90 ° on this basis, then vertical on read level chi
The reading c of air level one end in post1；Unclamp left shelves seat and horizon rule level is turned 180 ° by right shelves seat, it is solid in the same way
Surely horizon rule is lived, the reading c of the air level other end is write down according to one side of first time reading2, twice the half of reading difference be
For the horizontal level error of zero.
9. the horizon rule scale division value position carried out using the horizon rule high-precision calibration device as described in any one of Claims 1-4
Error calibrating method, it is characterised in that comprise the following steps：
Horizon rule is placed on calibration platform, mobile left shelves seat and right shelves seat fix horizon rule, then pass through closed-loop control
The rotational angle of mechanism precise control stepping motor rotating shaft so that the air level alignment left side or the right in horizontal columns on horizon rule
Start line, then by the rotational angle of closed-loop control mechanism precise control stepping motor rotating shaft, each variable is horizon rule
Nominal division value, change the inclination angle of calibration platform every time, after air level in horizontal columns is stable, carried out in one end of air level
Reading d1,d2,d3..., dn；
In the same way in calibrated horizontal post air level another side, finally by formula Δ b=1- (bi-bi-1) calculate indexing
It is worth in error, formula：Δ b is the scale division value error of horizon rule, and unit is lattice；bi,bi-1It is the reading of horizon rule, unit is lattice.
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| CN201710313220.3A CN106959122B (en) | 2017-05-05 | 2017-05-05 | High-precision calibration device and calibration method for level bar |
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| CN201710313220.3A CN106959122B (en) | 2017-05-05 | 2017-05-05 | High-precision calibration device and calibration method for level bar |
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| CN106959122B CN106959122B (en) | 2023-05-05 |
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| CN108051575A (en) * | 2017-11-03 | 2018-05-18 | 无锡艾科瑞思产品设计与研究有限公司 | A kind of biological detection instrument |
| CN108489516A (en) * | 2018-06-26 | 2018-09-04 | 郑州市质量技术监督检验测试中心 | A kind of image-type Laser Line Marker integrated correction device and calibration method |
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|---|---|---|---|---|
| CN107462263A (en) * | 2017-08-30 | 2017-12-12 | 东莞欧达电子有限公司 | A kind of test structure of air level component |
| CN108051575A (en) * | 2017-11-03 | 2018-05-18 | 无锡艾科瑞思产品设计与研究有限公司 | A kind of biological detection instrument |
| CN108051575B (en) * | 2017-11-03 | 2020-02-14 | 无锡艾科瑞思产品设计与研究有限公司 | Biological detection instrument |
| CN108489516A (en) * | 2018-06-26 | 2018-09-04 | 郑州市质量技术监督检验测试中心 | A kind of image-type Laser Line Marker integrated correction device and calibration method |
| CN108489516B (en) * | 2018-06-26 | 2023-08-11 | 郑州市质量技术监督检验测试中心 | Integrated calibration device and method for image type laser graticule |
| CN110926294A (en) * | 2019-11-15 | 2020-03-27 | 安徽普源分离机械制造有限公司 | Height gauge calibrating device |
| CN110926294B (en) * | 2019-11-15 | 2022-05-20 | 安徽普源分离机械制造有限公司 | Height gauge calibrating device |
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| CN106959122B (en) | 2023-05-05 |
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Address after: Henan Institute of Metrology, No. 21 Huayuan Road, Zhengzhou City, Henan Province, 450000 Patentee after: Henan Institute of Metrology and Testing Science Address before: Henan Institute of Metrology, No. 21 Huayuan Road, Zhengzhou City, Henan Province, 450000 Patentee before: HENAN PROVINCE INSTITUTE OF METROLOGY |