CN101419059B - Method for calibrating circumference gauge using the ellipse bar - Google Patents
Method for calibrating circumference gauge using the ellipse bar Download PDFInfo
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- CN101419059B CN101419059B CN2008102038845A CN200810203884A CN101419059B CN 101419059 B CN101419059 B CN 101419059B CN 2008102038845 A CN2008102038845 A CN 2008102038845A CN 200810203884 A CN200810203884 A CN 200810203884A CN 101419059 B CN101419059 B CN 101419059B
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Abstract
The invention discloses an elliptic rod for calibrating circumference instruments, as well as a method for calibrating circumference instruments by use of the elliptic rod. An elliptic rod body is inan elliptic but not round shape. The length range of an elliptic long shaft is between 5.50 and 9.00 millimeters. The length range of an elliptic short shaft is between 5.00 and 8.50 millimeters. Themethod for calibrating circumference instruments by use of the elliptic rod comprises the following: step 1. the elliptic rod is arranged on a to-be-calibrated circumference instrument; step 2. the circumference of the elliptic rod is repeatedly measured by the circumference instrument at least twice, and the deviation degree among circumference values is determined according to the obtained circumference values; and step 3. according to the determined deviation degree, a measurement operating mechanism of the circumference instrument is adjusted to drive the rotation angle of the elliptic rodso as to enable the rotation angle of the to-be-calibrated circumference instrument to meet standards. The elliptic rod and the method for calibrating circumference instruments by use of the ellipticrod can effectively calibrate the circumference instruments and raise the measurement accuracy of the circumference instruments.
Description
Technical field
The present invention relates to a kind of method of calibrating the circumference instrument, particularly a kind of method of using ellipse bar calibration circumference instrument.
Background technology
The cigarette circumferential size is an important indicator of cigarette quality, and the circumference measuring principle is with in cigarette Rotate 180 ° or the 360 ° of processes, with infrared laser diameter of cigarette is carried out continuous coverage about 100 times, obtains the mean diameter value and is converted into circumference.The circumference instrument mainly is made up of infrared laser and measurement running mechanism, running mechanism is used to rotate cigarette, infrared laser comprises generating laser and laser receptacle, see also Fig. 1, drive in the process of cigarette rotation in running mechanism, generating laser 1 emission one row's laser beam irradiation is to cigarette 2, and the part laser beam is blocked by cigarette 2, the laser beam that is not blocked is received by laser pickoff 3, measures the diameter of cigarette with this.
Cigarette is difficult to assurance in manufacture process it is shaped as director circle, that is to say, the cigarette profile is more or less oval, then, sees also Fig. 2, and when not driving cigarette rotation (being that the cigarette rotation is 0 °) in measurement running mechanism, the diameter of measuring cigarette to be measured is X
1, drive cigarette half-twist, 180 °, 270 °, and 360 ° the time, can measure cigarette to be measured each diameter when variant state respectively when measuring running mechanism, wherein, diameter is respectively X when 180 ° and 270 °
N-iAnd X
n, at last each value of measuring is averaged to convert and obtains the girth of cigarette to be measured.Yet, because cigarette to be measured and off-gauge circle all are elliptical shape, thus usually, when measuring running mechanism when driving 180 ° of cigarette anglec of rotation less thaies or 360 °, this moment, measured value and actual value can exist than big-difference, as shown in Figure 3, and then under duplicate measurements, the data of gained will have than big-difference, and when actual detected cigarette circumferential size, only measure once usually, gained is the result have unavoidably than mistake.Obviously be the precision and the accuracy of assurance measurement, need to measure running mechanism drive cigarette and rotate complete 180 ° or 360 °.Yet prior art adopts director circle master bar calibration circumference instrument usually, and the director circle master bar whether rotate, and whether rotation number of degrees size, and the gained data are all almost consistent, and the measurement that all can't screen the circumference instrument operates mechanism and whether drives cigarette Rotate 180 ° or 360 °.
Therefore, whether the measurement running mechanism that how to differentiate the circumference instrument drives cigarette Rotate 180 ° or 360 ° of realities have become the problem that those skilled in the art person need solve.
Summary of the invention
Technical scheme to be solved of the present invention provides a kind of method that is used to calibrate the ellipse bar of circumference instrument and uses described ellipse bar calibration circumference instrument.
The invention provides a kind of method of using ellipse bar calibration circumference instrument, may further comprise the steps:
The girth of step 2, the described ellipse bar of circumference instrument duplicate measurements at least 2 times, and determine departure degree between each perimeter value according to each measured perimeter value;
Preferably, the employing standard deviation is determined the departure degree between each perimeter value.
Beneficial effect of the present invention is: can effectively calibrate the circumference instrument, improve the accuracy that the circumference instrument is measured.
Description of drawings
Fig. 1 measures the diameter of cigarette synoptic diagram for infrared laser.
Fig. 2 is that a circumference of cigarette Rotate 180 ° or 360 ° detects synoptic diagram.
Fig. 3 detects synoptic diagram for a circumference of 180 ° of cigarette rotation less thaies.
Fig. 4 is the schematic top plan view of ellipse bar.
Fig. 5 is for using the method flow diagram of ellipse bar calibration circumference instrument.
Embodiment
Describe the preferred embodiments of the present invention in detail below in conjunction with accompanying drawing.
Depart from 180 ° or 360 ° owing to measure running mechanism if drive the cigarette rotation, can cause bigger measuring error, that is to say, same cigarette is carried out duplicate measurements, and measured diameter value has bigger difference, promptly, to depart from 180 ° or 360 ° many more if drive the cigarette rotation to measure running mechanism, then measured diameter value has big more standard deviation, in view of the above, the invention provides a kind of method that is used to calibrate circumference instrument ellipse bar and uses described ellipse bar calibration circumference instrument.
Because cigarette is comparatively soft, repeatedly duplicate measurements causes the change of the diameter of cigarette own easily, influence final measurement, therefore, the invention provides a kind of ellipse bar, be used for substituting cigarette, see also Fig. 4, ellipse bar body oval in shape, the length of the major axis a of described elliptical shape is greater than the length of minor axis b, the preferred range of major axis a length is 5.50mm to 9.00mm, the preferred range of minor axis b length is 5.00mm to 8.50mm, and in the present embodiment, the length of major axis a is preferably 8.00mm, the length of minor axis a is preferably 7.80mm, and the height and the cigarette of ellipse bar are similar.
See also Fig. 5, the method for use ellipse bar calibration circumference instrument provided by the invention may further comprise the steps:
S1, ellipse bar is installed on the circumference instrument to be calibrated;
The girth of S2, circumference instrument duplicate measurements ellipse bar at least 2 times, and the perimeter value of the measured each time ellipse bar of record;
S3, the perimeter value of measured ellipse bar is added up, obtain the standard deviation of described all perimeter value;
S4, according to the standard deviation of all perimeter value described in the step S3, judge whether the circumference instrument reaches requirement, if, then stop, if not, then connect next step;
S5, adjustment circumference instrument are measured the angle that running mechanism drives described ellipse bar rotation, meet step S2.
State in the use before the method calibration circumference instrument, can use existing director circle rod calibration circumference instrument.
Adjustment circumference instrument described in the step S5 is measured the angle that running mechanism drives the cigarette rotation, and its method of adjustment is:
S51, judge whether to measure the angle that running mechanism drives described ellipse bar rotation for adjusting for the first time the circumference instrument, if, then transfer big arbitrarily or turn the measurement of circumference instrument down to operate the angle that mechanism drives described ellipse bar rotation, meet step S2 then, if not, then connect next step;
The standard deviation of S52, this processing gained of comparison and the last standard deviation of handling gained, if this standard deviation of handling gained is handled the standard deviation of gained less than the last time, then meet step S53, if this handles the standard deviation of the standard deviation of gained greater than last time processing gained, then meet step S54;
S53, equidirectional adjustment circumference instrument are measured the angle that running mechanism drives described ellipse bar rotation, promptly, if the last circumference instrument of turning down is measured the angle that running mechanism drives described ellipse bar rotation, then this adjustment is turned the circumference instrument down and is measured the angle that running mechanism drives described ellipse bar rotation, if the last big circumference instrument of adjusting is measured the angle that running mechanism drives described ellipse bar rotation, then this is adjusted the big circumference instrument and measures the angle that running mechanism drives described ellipse bar rotation, meets step S2 then;
S54, opposite direction are adjusted the circumference instrument and are measured the angle that running mechanism drives described ellipse bar rotation, promptly, if the last circumference instrument of turning down is measured the angle that running mechanism drives described ellipse bar rotation, then this is adjusted the big circumference instrument and measures the angle that running mechanism drives described ellipse bar rotation, if the last big circumference instrument of adjusting is measured the angle that running mechanism drives described ellipse bar rotation, then this adjustment is turned the circumference instrument down and is measured the angle that running mechanism drives described ellipse bar rotation, meets step S2 then.
Standard deviation described in the said method, what reflected is the departure degree of a plurality of perimeter value of duplicate measurements gained, therefore, standard deviation can substitute with all the other indexs that reflects described a plurality of perimeter value departure degrees, as: variance, the difference of two squares etc.Because error can not be avoided fully, therefore, standard deviation can think that the accuracy of measurement of circumference instrument meets the demands in the scope of allowing, can stop the adjustment to the measurement running mechanism of circumference instrument.
Ellipse bar provided by the invention and use the method for described ellipse bar calibration circumference instrument is applicable to that all measure circumference instrument of circle diameter by infrared laser, can effectively calibrate the circumference instrument, improves the accuracy that the circumference instrument is measured.
Above embodiment is the unrestricted technical scheme of the present invention in order to explanation only.Any modification or partial replacement that does not break away from spirit and scope of the invention all should be encompassed in the middle of the claim scope of the present invention.
Claims (2)
1. a method of using ellipse bar calibration circumference instrument is characterized in that, may further comprise the steps:
Step 1, ellipse bar is installed on the circumference instrument to be calibrated;
The girth of step 2, the described ellipse bar of circumference instrument duplicate measurements at least 2 times, and determine departure degree between each perimeter value according to each measured perimeter value;
Step 3, according to determined departure degree, adjust the circumference instrument and measure angle that running mechanism drives described ellipse bar rotation so that circumference instrument anglec of rotation conformance with standard to be calibrated.
2. use the method for ellipse bar calibration circumference instrument according to claim 1, it is characterized in that: the employing standard deviation is determined the departure degree between each perimeter value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102038845A CN101419059B (en) | 2008-12-02 | 2008-12-02 | Method for calibrating circumference gauge using the ellipse bar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102038845A CN101419059B (en) | 2008-12-02 | 2008-12-02 | Method for calibrating circumference gauge using the ellipse bar |
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| Publication Number | Publication Date |
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| CN101419059A CN101419059A (en) | 2009-04-29 |
| CN101419059B true CN101419059B (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102038845A Active CN101419059B (en) | 2008-12-02 | 2008-12-02 | Method for calibrating circumference gauge using the ellipse bar |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104406533A (en) * | 2014-11-28 | 2015-03-11 | 沈阳飞机工业（集团）有限公司 | Laser diameter measuring instrument calibrating method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4007992A (en) * | 1975-06-02 | 1977-02-15 | Techmet Company | Light beam shape control in optical measuring apparatus |
| CN1157118A (en) * | 1996-01-24 | 1997-08-20 | 中国科学院沈阳科学仪器研制中心 | Comprehensive test control program for checking tobacco quality |
| CN1294882A (en) * | 1999-11-09 | 2001-05-16 | 钱强 | Cigarette and filter tip circumference measuring and controlling method |
| CN2588801Y (en) * | 2002-10-25 | 2003-12-03 | 刘慧茹 | Environmental protection elliptical cigarette |
-
2008
- 2008-12-02 CN CN2008102038845A patent/CN101419059B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4007992A (en) * | 1975-06-02 | 1977-02-15 | Techmet Company | Light beam shape control in optical measuring apparatus |
| CN1157118A (en) * | 1996-01-24 | 1997-08-20 | 中国科学院沈阳科学仪器研制中心 | Comprehensive test control program for checking tobacco quality |
| CN1294882A (en) * | 1999-11-09 | 2001-05-16 | 钱强 | Cigarette and filter tip circumference measuring and controlling method |
| CN2588801Y (en) * | 2002-10-25 | 2003-12-03 | 刘慧茹 | Environmental protection elliptical cigarette |
Non-Patent Citations (3)
| Title |
|---|
| JP昭57-161607A 1982.10.05 |
| 江潼君等.双路线材椭圆度测量仪扫描光路及自校系统.东南大学学报25 3.1995,25(3),正文第46页第13行-第48页最后1行. |
| 江潼君等.双路线材椭圆度测量仪扫描光路及自校系统.东南大学学报25 3.1995,25(3),正文第46页第13行-第48页最后1行. * |
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| CN101419059A (en) | 2009-04-29 |
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