CN114577118A - High-temperature-resistant wide-range offset sensor and calibration method - Google Patents
High-temperature-resistant wide-range offset sensor and calibration method Download PDFInfo
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- CN114577118A CN114577118A CN202210141762.8A CN202210141762A CN114577118A CN 114577118 A CN114577118 A CN 114577118A CN 202210141762 A CN202210141762 A CN 202210141762A CN 114577118 A CN114577118 A CN 114577118A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000013307 optical fiber Substances 0.000 claims abstract description 60
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 230000005855 radiation Effects 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 6
- 239000011521 glass Substances 0.000 abstract description 4
- 239000000835 fiber Substances 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 7
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Measurement Of Optical Distance (AREA)
- Radiation Pyrometers (AREA)
Abstract
The invention discloses a high-temperature-resistant wide-range offset sensor and a calibration method, wherein the high-temperature-resistant wide-range offset sensor comprises an optical fiber emitting head, a receiver, a taper hole and a controller; the calibration method of the high-temperature-resistant wide-range offset sensor comprises the following steps: determining the detection range of the sensor; adjusting the distance between the optical fiber transmitting head and the receiver; determining the angle of an optical fiber transmitting head; measuring the size of a light spot on a measured object; determining the diameter and the total radiation taper of the taper hole; determining the number of the optical fiber transmitting heads and the number of the optical fiber receivers; array layout; detecting and calibrating; the detection and calibration method comprises the following steps: determining a calibrated step value; moving the measured object by the step value, and receiving the value fed back by the receiver; when the measured object enters the shielding range of the other receiver from one receiver, the controller carries out carry counting; filtering the signal with the precision lower than the set step length to form a continuous discrete value; the discrete values are entered into a controller database. The invention has the advantages of large detection range, high temperature resistance, reduction of glass lens cost and the like.
Description
Technical Field
The invention relates to the field of coating, in particular to a high-temperature-resistant wide-range offset sensor and a calibration method.
Background
In the coating process, the foil or the film is carried in an oven, deviation can occur due to various reasons, the coating quality and the drying effect of the product are affected after deviation occurs, and the deviation amount of the foil can reach 100 mm; because the temperature in the oven is higher, the temperature may exceed more than 150 ℃; therefore, in a high-temperature environment, a special sensor is needed for detecting large offset;
the sensing area of a general optical fiber sensor is about 2mm, the detection area of an optical fiber with an optical lens can reach about 10mm, and the actual requirement of pole piece offset detection of 50-100mm cannot be met; the optical fiber with the optical lens cannot adapt to a high-temperature environment due to the material of optical lens parts and the like;
the single optical fiber emission light source is a circular light spot, and when the object to be measured shields the sensing, the sensing value is nonlinear; after the transmitting end and the receiver detect the distance change, the diameter of the detected light spot and the incident angle also change, and the repeated customization cost of the optical lens is higher;
therefore, the high-temperature-resistant wide-range offset sensor and the calibration method are provided, the method can detect a wider range, can work in a high-temperature environment, and reduces the cost.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the high-temperature-resistant wide-range offset sensor and the calibration method, so that the sensor has the characteristics of large detection range, high temperature resistance, reduction of glass lens cost and the like.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a high-temperature-resistant wide-range offset sensor comprises an optical fiber transmitting head, a receiver, a taper hole and a controller; the taper hole is arranged between the optical fiber transmitting head and the receiver.
In the above structure, the optical fiber emitting head is disposed above the taper hole; the receiver is arranged below the taper hole.
In the above structure, the optical fiber emitting head is aligned to the center of the taper hole; the bottom end of the taper hole is opposite to the receiver.
A calibration method of a high-temperature-resistant wide-range offset sensor,
step S1, determining the detection range of the sensor according to the offset of the measured object;
step S2, determining the distance between the fiber transmitting head and the receiver according to the installation space of the detected object;
step S3, determining the angle of the optical fiber transmitting head according to the distance between the optical fiber transmitting head and the receiver;
step S4, determining the size of the light spot on the measured object according to the distance between the optical fiber transmitting head and the receiver;
step S5, determining the diameter of the taper hole and the total radiation taper according to the size of the light spot and the angle of the optical fiber emission head;
step S6, determining the number of the optical fiber emitting heads and the optical fiber receivers according to the detection range and the size of the light spot;
step S7, array layout, according to the optical fiber installation space and the number of the optical fiber transmitting heads and the receivers, the array layout is carried out on the optical fiber transmitting heads and the receivers;
and step S8, detecting and calibrating, and carrying out nonlinear calibration on the value fed back by the receiver.
In step S8, the method for detecting calibration includes:
s81, determining a step value to be calibrated according to the offset of the measured object, the required identification precision and the repetition precision;
s82, moving the measured object by step value, gradually shielding the receiver from the beginning to the complete shielding; recording a group of values fed back by the receiver according to different step values;
s83, when the object to be tested enters the shielding range of another receiver, the controller counts the carry; the controller carries the bit once when the shielding of the receiver is finished once; until all receivers are blocked;
s84, filtering the signals with the precision lower than the set step length to form a series of continuous discrete values;
and S85, recording a series of continuous discrete values into the controller database for use in subsequent rechecks.
The light emitted by the optical fiber emitting head is totally reflected by the taper hole, so that the light is completely received by the receiver.
Wherein the value recorded by the controller is set to the full range of the controller after all receivers have been blocked.
The beneficial effects of the invention are: the invention provides a high-temperature-resistant wide-range offset sensor and a calibration method, wherein the high-temperature-resistant wide-range offset sensor comprises an optical fiber emitting head, a receiver, a taper hole and a controller; a calibration method of a high-temperature-resistant wide-range offset sensor comprises the following steps: step S1, measuring the offset of the measured object, and determining the detection range of the sensor; step S2, adjusting the distance between the optical fiber transmitting head and the receiver; step S3, adjusting the angle of the optical fiber emitting head; step S4, measuring the size of the light spot on the measured object; step S5, adjusting the diameter and the total radiation taper of the taper hole; step S6, adjusting the number of the optical fiber transmitting heads and the optical fiber receiving heads; step S7, array layout, which is to carry out array layout on the optical fiber transmitting head and the optical fiber receiver; step S8, detecting and calibrating, wherein the offset of the measured object is linearly changed, and the shielded area of the receiver is nonlinearly changed, so that the value fed back by the receiver needs to be nonlinearly calibrated; the detection calibration method comprises the following steps: 1) determining a step value to be calibrated according to the offset of the measured object, the required identification precision and the repetition precision; 2) moving the measured object by step value, gradually shielding the receiver from starting shielding to completely shielding; recording a group of values fed back by the receiver according to different step values; 3) when the measured object enters the shielding range of the other receiver from one receiver, the controller carries out carry counting; the controller carries the bit once when the shielding of the receiver is finished once; until all receivers are blocked; 4) filtering the signals with the precision lower than the set step length to form a series of continuous discrete values; 5) a series of continuous discrete values are entered into the controller database for use in subsequent review. The detection range of the sensor is enlarged, the sensor is high temperature resistant, and the cost of the glass lens is reduced; the problems that the detection range of a sensor in the existing equipment is too small, the sensor cannot work in a high-temperature environment, and the cost is increased are solved; the detection accuracy can be greatly improved and the manufacturing cost can be reduced in the using process.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic assembly view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic diagram of the transmission and reception of light in the present invention;
FIG. 4 is a top view of the present invention;
FIG. 5 is a flow chart of the calibration of the high temperature resistant wide-range offset sensor of the present invention;
FIG. 6 is a flow chart of detection calibration.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.
Referring to fig. 1-6, a high temperature resistant wide-range offset sensor comprises an optical fiber transmitting head 01, a receiver 03, a taper hole 02 and a controller; the taper hole 02 is arranged between the optical fiber transmitting head 01 and the receiver 03;
the optical fiber emitting head 01 is arranged above the taper hole 02; the receiver 03 is arranged below the taper hole 02;
the optical fiber emitting head 01 is aligned to the center of the taper hole 02; the bottom end of the taper hole 02 is opposite to the receiver 03.
A calibration method of a high-temperature-resistant wide-range offset sensor comprises the following steps:
step S1, determining the detection range of the sensor according to the offset of the measured object;
step S2, determining the distance between the optical fiber transmitting head 01 and the receiver 03 according to the installation space of the detected object;
step S3, determining the angle of the optical fiber emitting head 01 according to the distance between the optical fiber emitting head 01 and the receiver 03;
step S4, determining the size of the light spot on the measured object according to the distance between the optical fiber transmitting head 01 and the receiver 03;
step S5, determining the diameter and the total radiation taper of the taper hole 02 according to the size of the light spot and the angle of the optical fiber emitting head 01;
step S6, determining the number of the optical fiber transmitting heads 01 and the number of the optical fiber receivers 03 according to the detection range and the size of the light spot;
step S7, array layout, according to the fiber installation space and the number of the fiber transmitting heads and the receivers, the fiber transmitting heads 01 and the receivers 03 are arranged in an array;
step S8, performing detection and calibration, where the offset of the measured object changes linearly, and the shielded area of the receiver 03 changes nonlinearly, so that a value fed back by the receiver 03 needs to be calibrated nonlinearly.
In step S8, the method for detecting calibration includes:
s81, determining a step value to be calibrated according to the offset of the measured object, the required identification precision and the repetition precision; the step size can be set to 1mm,0.5mm,0.2mm, etc.;
s82, moving the measured object by the step value, gradually shielding the receiver 03, and from the beginning to the complete shielding; recording a group of values fed back by the receiver 03 according to different step values;
s83, when the object to be measured enters the shielding range of another receiver 03 from one receiver 03, the controller carries out carry counting; the controller carries out the carrying once when the shielding of the receiver 03 is finished once; until all receivers 03 are blocked; for example, the measured object moves by a step size of 1mm, and after moving by 10mm, the signal of the receiver 03 is completely shielded; the controller carries out carry display for 10mm, and when a measured object shields the next receiver 03, the numerical value is displayed for 10 +; and the analogy shows that the detection ranges of 20+, 30+, 40+ are all blocked by all receivers 03.
S84, filtering the signals with the precision lower than the set step length to form a series of continuous discrete values;
and S85, recording a series of continuous discrete values into the controller database for use in subsequent rechecks.
The light emitted by the optical fiber emitting head 01 is totally reflected by the taper hole 02, so that the light is completely received by the receiver 03. The light emitted by the fiber emitting head 01 is not required to pass through an optical lens, and is completely received and returned to the receiver 03.
After all receivers 03 are blocked, the recorded value of the controller is set to the full scale of the controller.
The optical fiber transmitting head 01 has the characteristic that the optical fiber is resistant to high temperature of more than 150 ℃.
As shown in FIG. 4, the array of the fiber emitting heads 01 can extend the detection range of a single group of fiber emitting heads 01 from 10mm to a large range of detection, such as 50mm, 100mm, or even a larger range.
The edge light is received into the amplifier for light intensity quantification through the total reflection of the taper hole 02 and the increase of the light spot receiving radius area, the high temperature problem of the optical lens is solved, the defect that the plastic lens cannot resist high temperature is avoided, the cost of the glass optical lens is reduced, and the cost can be saved by more than 50%; the optical fiber transmitting head 01 forms a wide-range sensor through a certain array mode and a signal processing and carrying mechanism.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides a high temperature resistant wide-range offset sensor which characterized in that: the device comprises an optical fiber transmitting head, a receiver, a taper hole and a controller; the taper hole is arranged between the optical fiber transmitting head and the receiver.
2. The high temperature resistant wide range offset sensor of claim 1, wherein: the optical fiber emission head is arranged above the taper hole; the receiver is arranged below the taper hole.
3. The high temperature resistant wide range offset sensor of claim 1, wherein: the optical fiber transmitting head is aligned to the center of the taper hole; the bottom end of the taper hole is opposite to the receiver.
4. A calibration method of a high-temperature-resistant wide-range offset sensor is characterized by comprising the following steps:
step S1, determining the detection range of the sensor according to the offset of the measured object;
step S2, determining the distance between the optical fiber transmitting head and the receiver according to the installation space of the detected object;
step S3, determining the angle of the optical fiber transmitting head according to the distance between the optical fiber transmitting head and the receiver;
step S4, determining the size of the light spot on the measured object according to the distance between the optical fiber transmitting head and the receiver;
step S5, determining the diameter of the taper hole and the total radiation taper according to the size of the light spot and the angle of the optical fiber emission head;
step S6, determining the number of optical fiber emitting heads and optical fiber receivers according to the detection range and the size of the light spot;
step S7, array layout, according to the optical fiber installation space and the number of the optical fiber transmitting heads and the receivers, the array layout is carried out on the optical fiber transmitting heads and the receivers;
and step S8, detecting and calibrating, and carrying out nonlinear calibration on the value fed back by the receiver.
5. The calibration method of the high-temperature-resistant wide-range offset sensor according to claim 4, characterized in that: in step S8, the method for detecting calibration includes:
s81, determining a step value to be calibrated according to the offset of the measured object, the required identification precision and the repetition precision;
s82, moving the measured object by step value, gradually shielding the receiver from the beginning to the complete shielding; recording a group of values fed back by the receiver according to different step values;
s83, when the object to be tested enters the shielding range of another receiver, the controller counts the carry; the controller carries the bit once when the shielding of the receiver is finished once; until all receivers are blocked;
s84, filtering the signals with the precision lower than the set step length to form a series of continuous discrete values;
s85, recording a series of continuous discrete values into the controller database for use in subsequent review.
6. The method for calibrating the high-temperature-resistant wide-range offset sensor according to claim 4, wherein the method comprises the following steps: and the light emitted by the optical fiber emitting head is totally reflected by the taper hole, so that the light is completely received by the receiver.
7. The method for calibrating the high-temperature-resistant wide-range offset sensor according to claim 4, wherein the method comprises the following steps: after all receivers are blocked, the recorded value of the controller is set to the full scale of the controller.
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| CN202210141762.8A CN114577118B (en) | 2022-02-16 | 2022-02-16 | High-temperature-resistant large-range offset sensor and calibration method |
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| CN202210141762.8A CN114577118B (en) | 2022-02-16 | 2022-02-16 | High-temperature-resistant large-range offset sensor and calibration method |
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| CN114577118B CN114577118B (en) | 2024-08-06 |
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Citations (10)
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|---|---|---|---|---|
| SU1490467A1 (en) * | 1987-06-26 | 1989-06-30 | Московский институт стали и сплавов | Device for measuring displacements |
| US20020039463A1 (en) * | 2000-06-28 | 2002-04-04 | Degertekin Fahrettin Levent | Optical displacement sensor |
| JP2003008515A (en) * | 2001-06-26 | 2003-01-10 | Victor Co Of Japan Ltd | Photodetector |
| US20060152710A1 (en) * | 2003-06-23 | 2006-07-13 | Bernhard Braunecker | Optical inclinometer |
| CN101002073A (en) * | 2004-07-22 | 2007-07-18 | 株式会社安川电机 | Reflection optical detector |
| CN200958940Y (en) * | 2006-07-21 | 2007-10-10 | 上海大学 | System for measuring object three-dimensional deformation based on optical fiber and electronic phase-transfer speckle technology |
| CN204313806U (en) * | 2013-10-09 | 2015-05-06 | 西克斯特格曼有限公司 | Photoelectric sensor |
| CN208254753U (en) * | 2018-06-14 | 2018-12-18 | 广州市九州旗建筑科技有限公司 | A kind of device measuring bridge dynamic deflection |
| US20210239459A1 (en) * | 2018-04-18 | 2021-08-05 | Logicdata Electronic & Software Entwicklungs Gmbh | Sensor assembly, actuator, control system, electrically adjustable piece of furniture and method for operating an electrically adjustable piece of furniture |
| CN213940725U (en) * | 2019-04-15 | 2021-08-13 | 逻辑数据电子软件发展股份有限公司 | Sensor assembly and furniture |
-
2022
- 2022-02-16 CN CN202210141762.8A patent/CN114577118B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1490467A1 (en) * | 1987-06-26 | 1989-06-30 | Московский институт стали и сплавов | Device for measuring displacements |
| US20020039463A1 (en) * | 2000-06-28 | 2002-04-04 | Degertekin Fahrettin Levent | Optical displacement sensor |
| JP2003008515A (en) * | 2001-06-26 | 2003-01-10 | Victor Co Of Japan Ltd | Photodetector |
| US20060152710A1 (en) * | 2003-06-23 | 2006-07-13 | Bernhard Braunecker | Optical inclinometer |
| CN101002073A (en) * | 2004-07-22 | 2007-07-18 | 株式会社安川电机 | Reflection optical detector |
| CN200958940Y (en) * | 2006-07-21 | 2007-10-10 | 上海大学 | System for measuring object three-dimensional deformation based on optical fiber and electronic phase-transfer speckle technology |
| CN204313806U (en) * | 2013-10-09 | 2015-05-06 | 西克斯特格曼有限公司 | Photoelectric sensor |
| US20210239459A1 (en) * | 2018-04-18 | 2021-08-05 | Logicdata Electronic & Software Entwicklungs Gmbh | Sensor assembly, actuator, control system, electrically adjustable piece of furniture and method for operating an electrically adjustable piece of furniture |
| CN208254753U (en) * | 2018-06-14 | 2018-12-18 | 广州市九州旗建筑科技有限公司 | A kind of device measuring bridge dynamic deflection |
| CN213940725U (en) * | 2019-04-15 | 2021-08-13 | 逻辑数据电子软件发展股份有限公司 | Sensor assembly and furniture |
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