CN103630069B - Rotating Angle Measurement under large jitter condition - Google Patents
Rotating Angle Measurement under large jitter condition Download PDFInfo
- Publication number
- CN103630069B CN103630069B CN201310598246.9A CN201310598246A CN103630069B CN 103630069 B CN103630069 B CN 103630069B CN 201310598246 A CN201310598246 A CN 201310598246A CN 103630069 B CN103630069 B CN 103630069B
- Authority
- CN
- China
- Prior art keywords
- test
- current vortex
- vortex sensor
- time
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses the Rotating Angle Measurement under a kind of large jitter condition, comprise the following steps: with the test of rating test part, obtain and demarcate output voltage-rotation curve; Multiple test groove is evenly set at the circumferential surface of test specimen, test current vortex sensor is set in the position aiming at test groove surface; Test current vortex sensor energising work; High frequency filter is carried out to the signal that test current vortex sensor exports, obtains real-time output voltage and the corresponding relation of time of test current vortex sensor; According to demarcation output voltage-rotation curve, and in real time output voltage and the corresponding relation of time, after adopting piecewise interpolation technical finesse, obtain real-time corner and the corresponding relation of time of test specimen, thus complete the real-time outer corner measurement of the test specimen under large jitter condition.Adopt the present invention, outer corner measurement when can realize the high-precision real of the test specimen of diameter run-out under the large jitter condition of 0.1mm ~ 0.5mm.
Description
Technical field
The present invention relates to a kind of mechanical coding Rotating Angle Measurement, particularly relate to the Rotating Angle Measurement based on current vortex mechanical coding under a kind of large jitter condition.
Background technology
In commercial Application, usually use photoelectric encoder to carry out rotating speed and the outer corner measurement of rotating machinery, be one very proven technique, convert the geometry of machinery displacement on output shaft to pulse or digital quantity by opto-electronic conversion.The Φ 417mm Circular gratings that Renishaw company produces, after electronic fine-grained, angular resolution can reach 0.004 second, and precision reaches ± and 0.5 second, but also higher to the requirement of beating of installation accuracy and rotating shaft, the assemblage gap tolerance between read head and grating scale is at 0.8 ± 0.08mm.And being limited to this, Traditional photovoltaic scrambler is not also suitable for the outer corner measurement of diameter run-out diameter under the large jitter condition of more than 0.1mm.
Such as, pretension hooping structure is a kind of common structure of component location guide cylindrical parts, is usually become by first frame, second frame, bed course, adjusting shims.Framework generally uses rigidity comparatively good material, ensures structural strength; Course is generally rubber, plastics, felt etc., plays buffer protection function, is connected by second frame bonding and upper; Adjustment pad generally uses metal material; Upper and lower half frame end face, by bolts assemblies, arranges adjusting pad in linkage interface position, by changing adjusting pad thickness, controls the cylindrical pretightning force in center.Under vibration, may relatively rotate, and diameter run-out can reach 0.1mm ~ 0.5mm usually between ectonexine, in this case, high-precision photoelectric encoder cannot normally work, also just cannot the cylindrical real-time corner of measuring center.
Summary of the invention
Object of the present invention is just to provide to solve the problem the Rotating Angle Measurement under a kind of large jitter condition.
In order to achieve the above object, present invention employs following technical scheme:
Rotating Angle Measurement under large jitter condition of the present invention, for measuring the real-time corner of the test specimen under large jitter condition, comprises the following steps:
(1) on the whirligig that accurate corner can be provided to rotate, the rating test part with test specimen same material, same geometry is assembled, at the circumferential surface of rating test part, multiple demarcation groove is evenly set, in the position aiming at demarcation groove surface, demarcation current vortex sensor is set, the assembling relative position between current vortex sensor and rating test part demarcated in record, carry out the demarcation of demarcating the output voltage of current vortex sensor and the corner of rating test part, obtain and demarcate output voltage-rotation curve;
(2) multiple test groove is evenly set at the circumferential surface of test specimen, test current vortex sensor is set in the position aiming at test groove surface; Described test current vortex sensor is identical with described demarcation current vortex sensor model, test current vortex sensor and the assembling relative position between test specimen is identical with the assembling relative position demarcated between current vortex sensor and rating test part, shape, the size of described test groove are identical with demarcation groove with quantity, and the relative position of described test groove on test specimen circumferential surface is identical with the relative position of described demarcation groove on rating test part circumferential surface;
(3) current vortex sensor energising work is tested, the real-time output voltage signal of monitoring and test current vortex sensor;
(4) filtering is carried out, filtering high-frequency signal wherein to the signal that test current vortex sensor exports, thus obtain real-time output voltage and the corresponding relation of time of test current vortex sensor;
(5) according to the demarcation output voltage-rotation curve of step (1) and the real-time output voltage of step (4) and the corresponding relation of time, after adopting piecewise interpolation technical finesse, obtain real-time corner and the corresponding relation of time of test specimen, thus complete the real-time outer corner measurement of the test specimen under large jitter condition.
Eddy current detection technology is a kind of detection technique of harmless, noncontacting measurement.It is simple that current vortex sensor due to employing has structure, highly sensitive, measure linear scope is large, not by the impact of the media such as greasy dirt, the advantages such as antijamming capability is strong, so be widely used at industrial sectors such as machinery, electric power, chemical industry, can be used for measuring displacement, size, thickness, the crackle of the parameters such as rotating speed and detection metal material surface and defect, the metallic barcode of identification different in width, thickness can also be used for, simultaneously in current vortex sensor effective range, the convex and concave feature on surface, does not affect current vortex output linearity feature.So the present invention adopts current vortex sensor to have operability as corner information acquisition terminal.
Particularly, the demarcation groove in described step (1) and the test groove in described step (2) are 24.Also other quantity is can be according to practical application.
In described step (1), the described whirligig that accurate corner can be provided to rotate is index plate.According to the device that practical application also can adopt other can provide accurate corner to rotate.
Beneficial effect of the present invention is:
Owing to present invention employs demarcation output voltage-rotation curve as reference, and adopt and the identical test condition of rating test, so the real-time corner data of actual test gained are completely true and precision is high, and the employing of current vortex sensor can the test specimen side normal mounting under large jitter condition use, thus outer corner measurement when realizing the high-precision real of the test specimen of diameter run-out under the large jitter condition of 0.1mm ~ 0.5mm, threshold value is turned for the pine of rotating machinery structure under dynamic environment as pretension hood type structure, the research such as mechanism is significant.
Accompanying drawing explanation
Fig. 1 is the central cylinder of pretension hooping structure in the embodiment of the present invention and the mounting structure schematic diagram of current vortex sensor;
Fig. 2 is the demarcation output voltage-rotation curve in the embodiment of the present invention;
Fig. 3 tests data and the corresponding relation curve of time after the real-time output voltage of current vortex sensor and filtering process in the embodiment of the present invention;
Fig. 4 is the real-time corner of central cylinder after carrying out piecewise interpolation technical finesse in the embodiment of the present invention and the corresponding relation curve of time.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described in detail:
Embodiment:
Measuring object: the real-time corner of the central cylinder of pretension hooping structure.
As Figure 1-Figure 4, the outer corner measurement of central cylinder 1 carries out according to the following steps:
(1) making of demarcation output voltage-rotation curve is first completed: right cylinder 1 and the mounting structure schematic diagram testing current vortex sensor 2 centered by Fig. 1, the calibration structure of this step does not illustrate in the drawings, composition graphs 1, assembling and central cylinder 1 same material on index plate (not shown), the rating test part (directly with reference to the central cylinder 1 in Fig. 1) of same geometry, evenly arrange 24 at the circumferential surface of rating test part and demarcate groove (directly with reference to the test groove in the central cylinder 1 in Fig. 1), arrange in the position aiming at demarcation groove surface and demarcate current vortex sensor (directly with reference to the test current vortex sensor 2 in Fig. 1), the assembling relative position between current vortex sensor and rating test part demarcated in record, carry out the demarcation of demarcating the output voltage of current vortex sensor and the corner of rating test part, obtain demarcation output voltage-rotation curve as shown in Figure 2, concrete grammar is conventional method, and namely according to electric eddy current measurement principle, application current vortex mechanical coding carries out outer corner measurement, and the output relation between sensor output voltage and corner affects by the distance of mechanical coding dutycycle and current vortex sensor and measured surface.As shown in Figure 2, upper as can be seen from figure, demarcate output voltage-rotation curve and embody a kind of asymmetric jigging curve form.Illustrate: according to concrete operations needs, this step also can be positioned between following step (2) and step (3).
(2) as shown in Figure 1, after completing the making of demarcation output voltage-rotation curve, 24 tests groove (unmarked in figure) are evenly set at the circumferential surface of the central cylinder 1 of pretension hooping structure, test current vortex sensor 2 is set in the position aiming at test groove surface; Test current vortex sensor 2 is identical with the demarcation current vortex sensor model in step (1), test current vortex sensor 2 and the assembling relative position between central cylinder 1 is identical with the assembling relative position demarcated between current vortex sensor and rating test part, shape, the size of test groove are identical with demarcation groove with quantity, and the relative position of test groove on central cylinder 1 circumferential surface is identical with the relative position of demarcation groove on rating test part circumferential surface.
(3) test current vortex sensor 2 to be energized the real-time output voltage signal of work, monitoring and test current vortex sensor 2.
(4) filtering is carried out, filtering high-frequency signal wherein to the signal that test current vortex sensor 2 exports, thus obtain real-time output voltage and the corresponding relation of time of test current vortex sensor 2, obtain curve as shown in Figure 3; In Fig. 3, horizontal ordinate is test period, and ordinate is the output signal of test current vortex sensor 2, and middle solid line is voltage data after filtering process, the region of beating of the output signal of the test current vortex sensor 2 before the shadow representation filtering around solid line.After filtering, the voltage range that test current vortex sensor 2 exports is roughly between-1.3V to+3.0V, owing to being kinetic measurement process and have passed through filtering process, passing through coding groove position, the peak-to-valley value of test current vortex sensor 2 output voltage is basically identical, in the change procedure of voltage, export maximum position at voltage, the groove bottom position of corresponding test groove; In the minimal value position that voltage exports, the upper top side location of corresponding test groove.
(5) according to the demarcation output voltage-rotation curve of step (1) and the real-time output voltage of step (4) and the corresponding relation of time, after adopting piecewise interpolation technical finesse, obtain the real-time corner of central cylinder 1 as shown in Figure 4 and the corresponding relation curve of time, thus complete the real-time outer corner measurement of the central cylinder 1 under large jitter condition, namely according to the real-time corner of central cylinder 1 corresponding to the known random time of this curve.In above-mentioned piecewise interpolation processing procedure, get (crest ~ trough or trough ~ crest see Fig. 3) between two extreme values half coding (7.5 °, be encoded to 360 ° of ÷ 24=15 ° entirely) scope in carry out interpolation processing, in this segment limit, corresponding corner is accurate, will be conducive to improving interpolation precision.
Above-described embodiment is preferred embodiment of the present invention, it is not the restriction to technical solution of the present invention, such as: the quantity of demarcating groove and test groove can also be 20,30 etc., as long as the circumferential surface of test block can be uniformly distributed in and be convenient to processing and the later stage calculates; As long as without the technical scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of patent of the present invention.
Claims (3)
1. the Rotating Angle Measurement under large jitter condition, for measuring the real-time corner of the test specimen under large jitter condition, is characterized in that: comprise the following steps:
(1) on the whirligig that accurate corner can be provided to rotate, the rating test part with test specimen same material, same geometry is assembled, at the circumferential surface of rating test part, multiple demarcation groove is evenly set, in the position aiming at demarcation groove surface, demarcation current vortex sensor is set, the assembling relative position between current vortex sensor and rating test part demarcated in record, carry out the demarcation of demarcating the output voltage of current vortex sensor and the corner of rating test part, obtain and demarcate output voltage-rotation curve;
(2) multiple test groove is evenly set at the circumferential surface of test specimen, test current vortex sensor is set in the position aiming at test groove surface; Described test current vortex sensor is identical with described demarcation current vortex sensor model, test current vortex sensor and the assembling relative position between test specimen is identical with the assembling relative position demarcated between current vortex sensor and rating test part, shape, the size of described test groove are identical with demarcation groove with quantity, and the relative position of described test groove on test specimen circumferential surface is identical with the relative position of described demarcation groove on rating test part circumferential surface;
(3) current vortex sensor energising work is tested, the real-time output voltage signal of monitoring and test current vortex sensor;
(4) filtering is carried out, filtering high-frequency signal wherein to the signal that test current vortex sensor exports, thus obtain real-time output voltage and the corresponding relation of time of test current vortex sensor;
(5) according to the demarcation output voltage-rotation curve of step (1) and the real-time output voltage of step (4) and the corresponding relation of time, after adopting piecewise interpolation technical finesse, obtain real-time corner and the corresponding relation of time of test specimen, thus complete the real-time outer corner measurement of the test specimen under large jitter condition.
2. the Rotating Angle Measurement under large jitter condition according to claim 1, is characterized in that: the test groove in the demarcation groove in described step (1) and described step (2) is 24.
3. the Rotating Angle Measurement under large jitter condition according to claim 1 and 2, is characterized in that: in described step (1), and the described whirligig that accurate corner can be provided to rotate is index plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310598246.9A CN103630069B (en) | 2013-11-22 | 2013-11-22 | Rotating Angle Measurement under large jitter condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310598246.9A CN103630069B (en) | 2013-11-22 | 2013-11-22 | Rotating Angle Measurement under large jitter condition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103630069A CN103630069A (en) | 2014-03-12 |
| CN103630069B true CN103630069B (en) | 2016-01-20 |
Family
ID=50211361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310598246.9A Active CN103630069B (en) | 2013-11-22 | 2013-11-22 | Rotating Angle Measurement under large jitter condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103630069B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991556B (en) * | 2014-04-17 | 2016-08-24 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of load measurement method |
| CN105277367B (en) * | 2015-11-04 | 2017-10-13 | 东风康明斯发动机有限公司 | Engine automatic expansion tightening wheel pivot angle signal supervisory instrument and method |
| CN105466332A (en) | 2015-11-13 | 2016-04-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Angle sensor and angle measuring method |
| CN106695452B (en) * | 2016-11-23 | 2018-11-13 | 重庆怡之驰机械有限公司 | Gear rotational positioning tooling |
| CN117405011B (en) * | 2023-11-02 | 2024-02-23 | 山东中科普锐检测技术有限公司 | Portable corner monitoring device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007017346A1 (en) * | 2006-05-05 | 2007-11-08 | imq Ingenieurbetrieb für Materialprüfung, Qualitätssicherung und Schweißtechnik GmbH | Two concealed component parts and/or workpieces relative position detecting method, involves measuring reaction of eddy current at coil and/or changing of magnetic field by eddy current signal exciting, detecting and preprocessing unit |
| CN101743456A (en) * | 2007-02-21 | 2010-06-16 | 米斯德国有限公司 | Arrangement and method for the absolute determination of the linear position or the rotational position expressed as an angle |
| CN102297653A (en) * | 2010-06-23 | 2011-12-28 | 大隈株式会社 | Rotation angle detection apparatus |
-
2013
- 2013-11-22 CN CN201310598246.9A patent/CN103630069B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007017346A1 (en) * | 2006-05-05 | 2007-11-08 | imq Ingenieurbetrieb für Materialprüfung, Qualitätssicherung und Schweißtechnik GmbH | Two concealed component parts and/or workpieces relative position detecting method, involves measuring reaction of eddy current at coil and/or changing of magnetic field by eddy current signal exciting, detecting and preprocessing unit |
| CN101743456A (en) * | 2007-02-21 | 2010-06-16 | 米斯德国有限公司 | Arrangement and method for the absolute determination of the linear position or the rotational position expressed as an angle |
| CN102297653A (en) * | 2010-06-23 | 2011-12-28 | 大隈株式会社 | Rotation angle detection apparatus |
Non-Patent Citations (3)
| Title |
|---|
| 利用插值法和曲线拟合法标定电涡流传感器;于鹏等;《中国测试技术》;20070131;第33卷(第1期);第139-141页 * |
| 基于回转体转角高精度测量装置的标定方法;于洵等;《国外电子测量技术》;20120228;第31卷(第2期);第51-54页 * |
| 电涡流传感器阵列测试技术;丁天怀等;《测试技术学报》;20060228;第20卷(第1期);第1-5页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103630069A (en) | 2014-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103630069B (en) | Rotating Angle Measurement under large jitter condition | |
| CN106625020B (en) | High speed and super precision machine tool chief axis, electro spindle incremental magnetic induction type bus type encoder | |
| CN106767956B (en) | Magnetic induction absolute value encoder of high-speed high-precision machine tool spindle and measuring gear thereof | |
| CN102538652B (en) | Calibrating device for eddy sensor | |
| CN103048071B (en) | Device and method for monitoring dynamic torque of frameless torque motor in suspension state | |
| CN105547126A (en) | Eddy current displacement sensor | |
| CN103358221A (en) | Measurement head for feeler for workpieces being machined | |
| CN204405509U (en) | Digital output bit moves sensor-type high-frequency reciprocating tester | |
| CN204301905U (en) | Nuclear fuel element screen work spring clamping force measuring apparatus | |
| CN201953839U (en) | Bi-directional thrust cylindrical roller combined bearing added with steel grid ruler | |
| CN203981104U (en) | A kind of eddy current displacement sensor static characteristics calibration equipment | |
| CN108627191A (en) | Position sensor automatic detection device and detection method | |
| CN201984115U (en) | Proportion-electromagnet testing system | |
| CN109458915B (en) | Detection tool and detection method for profile of disc cam | |
| CN207439425U (en) | High speed and super precision machine tool chief axis, electro spindle magnetic induction sine and cosine encoder | |
| CN2860730Y (en) | Spindle taper detection device | |
| CN102749024B (en) | Indexing accuracy measuring device | |
| CN104132609A (en) | Electromagnetic grid ruler structure and displacement information reading method thereof | |
| CN112129436B (en) | Switch machine conversion force real-time measuring device | |
| CN208179119U (en) | One kind is in machine laser detection gear compound graduation circle autocompensation installation | |
| CN208099510U (en) | Compensation device is moved in machine laser detection Gear Processing size | |
| CN204007511U (en) | Omnipotent screw measurement device | |
| CN113008429A (en) | Rotating shaft dynamic and static torque measurement system and method | |
| CN102927929B (en) | Detecting method for cam contour detecting system | |
| CN206430688U (en) | A kind of novel building supervision-used detecting ruler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |