CN103471496B - A kind of detection method of condenser type wire diameter of thread steel on-line measurement system - Google Patents
A kind of detection method of condenser type wire diameter of thread steel on-line measurement system Download PDFInfo
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- CN103471496B CN103471496B CN201310473828.4A CN201310473828A CN103471496B CN 103471496 B CN103471496 B CN 103471496B CN 201310473828 A CN201310473828 A CN 201310473828A CN 103471496 B CN103471496 B CN 103471496B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 144
- 239000010959 steel Substances 0.000 title claims abstract description 144
- 238000005259 measurement Methods 0.000 title claims abstract description 58
- 238000001514 detection method Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 24
- 239000003990 capacitor Substances 0.000 claims abstract description 16
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 238000003801 milling Methods 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims description 34
- 238000012545 processing Methods 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 abstract description 10
- 238000000691 measurement method Methods 0.000 abstract description 5
- 238000005096 rolling process Methods 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- OOAWCECZEHPMBX-UHFFFAOYSA-N oxygen(2-);uranium(4+) Chemical compound [O-2].[O-2].[U+4] OOAWCECZEHPMBX-UHFFFAOYSA-N 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- FCTBKIHDJGHPPO-UHFFFAOYSA-N uranium dioxide Inorganic materials O=[U]=O FCTBKIHDJGHPPO-UHFFFAOYSA-N 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012625 in-situ measurement Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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Abstract
The invention discloses a kind of detection method of condenser type wire diameter of thread steel on-line measurement system, belong to wire diameter of thread steel line Measurement Technique field.Cylindrical element of the present invention is the hollow cylindrical configuration of both ends open, and screw-thread steel passes from the axial centerline of cylindrical element, draws the first capacitance pole from the end of cylindrical element one end; Collector ring is arranged at the exit of milling train, and contacts with screw-thread steel, draws the second capacitance pole from collector ring, cylindrical element and screw-thread steel composition cylindrical capacitor; The first above-mentioned capacitance pole and the second capacitance pole access capacitance measurement module, capacitance measurement module is connected with filtration module, data operation module, data disaply moudle successively.Detection method of the present invention by Criterion database, and carries out local linearization, estimation of deviation computing obtains screw-thread steel to be measured diameter and departure.The present invention compares the technology such as laser scanning method and photoelectric camera shooting, and structure is simple, and economical, easily realizes the diameter of high precision online measuring screw-thread steel.
Description
Patented claim of the present invention is: the divisional application of 2012101497703, and the applying date of original application is: 2012-05-15, and invention and created name is: a kind of condenser type wire diameter of thread steel on-line measurement system and detection method thereof.
Technical field
The present invention relates to wire diameter of thread steel line Measurement Technique field, more particularly, relate to a kind of detection method of condenser type wire diameter of thread steel on-line measurement system.
Background technology
At present; in China's metallurgical industry; screw-thread steel factory major part still adopts after screw-thread steel rolling off-line; by workman's kind of calliper under hot, this method randomly draws measurement, and its measuring accuracy is not high, speed is slow, labour intensity is large; and can not detect in real time; cannot adjust replacing rolling mill roll in time, once find overproof, existing large quantities of steel become substandard products or waste product, also drastically influence the raising of production efficiency stop time.Along with rolling bar technology is updated, off-line measurement wire diameter cannot meet industrial needs for a long time., in order to meet client's needs, reduce costs, current screw-thread steel factory major part takes rolling with negative tolerance meanwhile, in order to improve lumber recovery further, just must realize the continuous on-line detection to rolled piece.
At present, research much about bar wire diameter non-contact type on-line measurement is constantly being goed deep into, and in " metallurgical management " magazine o. 11th " line, bar and screw-thread steel cross sectional shape line Measurement Technique general survey " literary composition in 2004, summing-up describing current bar wire diameter line Measurement Technique can be divided into laser scanning method and photoelectric camera shooting substantially.Laser scanning method laser beam reflection to diversing lens will be formed the light belt of a parallel sweep by the rotating prism of motor driving in diversing lens focus, the diameter (or width) of measured object blocks parallel scanning beams on this light belt, taken advantage of the sweep velocity of parallel light belt just can obtain the external diameter (or width) of measured object the time of blocking, but the method bad dynamic performance.Photoelectric camera shooting forms a branch of continuous print directional light by optical system and in linear array, forms by receiving camera lens the electronic image blocking shade, the project objects size corresponding to the shadow region of blocking this parallel beam is obtained through image processing, the method requires high, simultaneously high to the requirement of image procossing to shooting speed.
Chinese Patent Application No. 200420072685.2, the applying date is on June 30th, 2004, and invention and created name is: uranium dioxide pellet diameter on-line measurement system, and this application case adopts laser measuring apparatus to measure the diameter of uranium dioxide pellet.Chinese Patent Application No. 98111592.6, invention and created name is: a kind of method of automatic in-line measurement of diameters and device thereof, and this application case also adopts parallel laser light beam irradiation technology to realize calibrating.Chinese Patent Application No. 00238166.4, invention and created name is: the section size measurer of high-speed moving object, this application case ccd video camera commercial measurement face size.Chinese Patent Application No. 200910070820.7, invention and created name is: anti-vibration large-sized precise on-line diameter measurement method, and this application case also adopts CCD camera commercial measurement diameter of steel tube.
In addition, Chinese Patent Application No. 200410009187.8, the applying date is on June 9th, 2004, invention and created name is: screw-thread steel three Parameter Measuring system, this application case is by the line array CCD measuring instrument measuring vertical rib height, measure internal diameter, the photoelectronic collimating formula optical projector that cross rib is high and computer control system composition, photoelectronic collimating formula optical projector and line array CCD caliper are two independently measuring systems, measure on two orthogonal directions of screw-thread steel respectively, both share a measuring head, the measuring-signal of both direction inputs computer control system simultaneously, computer control system exports measurement result after data processing.Although this application case achieves the internal diameter of on-line measurement screw-thread steel, vertical rib and cross rib height three parameter, but what adopt is CCD measuring instrument and photoelectronic collimating formula optical projector technology, because screw-thread steel mill speed is very high, the screw-thread steel of high-speed motion is caused to form streamline, want the internal diameter of the screw-thread steel of on-line measurement simultaneously, vertical rib and cross rib three parameters, require high, simultaneously also high to the requirement of image procossing to shooting speed, cause testing cost significantly to increase, be not suitable for actual production and use.
Chinese Patent Application No. 200620018691.9, the applying date is on March 31st, 2006, invention and created name is: ribbed reinforced bar characteristic dimension measuring instrument, this application case comprises 6 ~ 14 groups of uniaxially directional light caliper, casing, high tilted supporter, low tilted supporters, 6 ~ 14 groups uniaxially directional light caliper be interleaved discharge, be divided into axial become A, B two groups of ± 10 ° ~ 70 ° of angles, 6 ~ 14 groups uniaxially directional light caliper reception camera lens, launch camera lens and fixed by the low tilted supporter or high tilted supporter that are fixed on casing respectively.Although this application case can directly be measured obtain internal diameter and cross rib external diameter, its complex structure, employing be uniaxially directional light caliper, produce and operation expense high.
In sum, in prior art, double thread steel wire footpath measuring technique mainly concentrates on laser scanning method and photoelectric camera shooting, these methods can realize the on-line measurement of wire diameter to a certain extent, but its complex structure, the processing requirements of measurement image is high, and cause measuring cost large, cost of equipment maintenance increases, the needs of high-speed rolling can not be adapted to, in the production and application process of reality, do not obtain general application.
Summary of the invention
1. invent the technical matters that will solve
The object of the invention is to overcome the wire diameter in-situ measurement equipment complex structure of screw-thread steel in prior art, calibrate require high, calibrate the deficiency that cost is high, a kind of detection method of condenser type wire diameter of thread steel on-line measurement system is provided, the condenser type on-line measurement system built by the present invention, can realize the high precision online measuring of wire diameter of thread steel, thus improves screw-thread steel lumber recovery, and structure is simple, cost of equipment maintenance is low.
2. technical scheme
For achieving the above object, technical scheme provided by the invention is:
A kind of condenser type wire diameter of thread steel on-line measurement system of the present invention, comprise cylindrical element, collector ring, capacitance measurement module, filtration module, data operation module and data disaply moudle, described cylindrical element is the hollow cylindrical configuration of both ends open, screw-thread steel passes from the axial centerline of cylindrical element, draws the first capacitance pole from the end of cylindrical element one end; Described collector ring is arranged at the exit of milling train, and contacts with screw-thread steel, draws the second capacitance pole from collector ring, described cylindrical element and screw-thread steel composition cylindrical capacitor; The first above-mentioned capacitance pole and the second capacitance pole access capacitance measurement module, this capacitance measurement module is for measuring the capacitance of cylindrical capacitor, and described capacitance measurement module, filtration module, data operation module, data disaply moudle connect successively.
Preferably, cylindrical element of the present invention is metalwork, and is positioned at the exit of milling train, and the outer diameter of this cylindrical element is 3 ~ 10 times of screw-thread steel diameter, and the length of this cylindrical element is 50 ~ 100cm.
The detection method of a kind of condenser type wire diameter of thread steel on-line measurement system of the present invention, the steps include:
1) Criterion database:
Be Ф by multiple diameter
ithe screw-thread steel of standard specification in the environment identical with actual production under off-line state through cylindrical element, capacitance measurement module measures the capacitance of now cylindrical capacitor by the first capacitance pole and the second capacitance pole, and module obtains corresponding capacitance C after filtering
i, wherein: Ф
ifor the screw-thread steel diameter of standard specification, C
ifor diameter is Ф
icapacitance corresponding to the screw-thread steel of standard specification, thus obtain (C
i, Ф
i) standard database, wherein Ф
ivalue be 6,8,10,12,16,18,20,22,25,32,40,50mm equal-specification, build (C in the present invention
i, Ф
i) standard database specification more complete more perfect, measured result is more accurate.
2) operating mode capacitance C is detected
x:
When screw-thread steel to be measured is through cylindrical element, capacitance measurement module measures the capacitance of now cylindrical capacitor by the first capacitance pole and the second capacitance pole, and module obtains corresponding capacitance C after filtering
x, wherein: C
xfor diameter Ф to be measured
xcapacitance corresponding to screw-thread steel;
3) data processing:
By step 2) detect the capacitance C obtained
xbe sent to data operation module, carry out local linearization, diameter Ф that estimation of deviation computing obtains screw-thread steel to be measured
xwith the departure ΔΦ of screw-thread steel diameter, concrete computation process is as follows:
A) according to the screw-thread steel diameter Ф of current production
mspecification, from standard database (C
i, Ф
i) in extract and the two groups of data (C being close of screw-thread steel diameter produced
1, Ф
1) and (C
2, Ф
2), wherein: Ф
1for the screw-thread steel diameter specifications Ф than current production
mthe normal diameter of a little specification, C
1be as the criterion database (C
i, Ф
i) middle Ф
1corresponding capacitance, Ф
2for the screw-thread steel diameter specifications Ф than current production
mthe normal diameter of a large specification, C
2be as the criterion database (C
i, Ф
i) middle Ф
2corresponding capacitance;
B) by (C
1, Ф
1) and (C
2, Ф
2) bring formula (1-1) into:
B can be calculated, wherein: b is intercept;
C) by above-mentioned (C
1, Ф
1), (C
2, Ф
2), the capacitance C that obtains of intercept b and detection
xbring formula (1-2) into,
The diameter Ф of screw-thread steel to be measured can be calculated
x, wherein: Ф
xfor screw-thread steel diameter to be measured, C
xfor diameter Ф to be measured
xcapacitance corresponding to screw-thread steel;
D) by the screw-thread steel format diameter Ф of current production
mwith the diameter Ф of the above-mentioned screw-thread steel to be measured calculated
xbring formula (1-3) into:
ΔΦ=Ф
x-Ф
m（1-3）
Calculate and obtain the departure ΔΦ of screw-thread steel diameter;
4) data display:
By the diameter Ф of screw-thread steel to be measured calculated in step 3)
xbe sent to data disaply moudle with departure ΔΦ to be shown.
The diameter of screw-thread steel alleged in the present invention all refers to nominal diameter, and nominal diameter scope is 6 ~ 50mm, the screw-thread steel nominal diameter of standard recommendation is 6,8,10,12,16,18,20,22,25,32,40,50mm equal-specification.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with existing known technology, there is following remarkable result:
(1) detection method of a kind of condenser type wire diameter of thread steel on-line measurement system of the present invention, alleviates labour intensity, improves production efficiency.After current screw-thread steel factory major part still adopts screw-thread steel rolling off-line, by workman's kind of calliper under hot, labour intensity is very large, and can not detect in real time, cannot adjust replacing rolling mill roll in time, once find overproof, existing large quantities of steel become substandard products or waste product, also drastically influence the raising of production efficiency stop time, therefore present invention achieves on-line measurement wire diameter of thread steel, alleviate labour intensity, improve production efficiency;
(2) detection method of a kind of condenser type wire diameter of thread steel on-line measurement system of the present invention, by constituting the first capacitance pole in the mode of the outside sheathed cylindrical element of screw-thread steel, and utilize the screw-thread steel contacted with collector ring as the second capacitance pole, construct a cylindrical capacitor dexterously, thus the diameter of screw-thread steel is measured by the mode of Detection capacitance value, the technology such as the laser scanning method compared to existing technology and photoelectric camera shooting, structure is simple, and economical, easily realize the diameter of high-acruracy survey screw-thread steel;
(3) detection method of a kind of condenser type wire diameter of thread steel on-line measurement system of the present invention, the outer diameter of its cylindrical element is 3 ~ 10 times of screw-thread steel diameter, the length of cylindrical element is 50 ~ 100cm, pass through experimental test, the cylindrical element of this physical dimension is measured and to calculate the screw-thread steel diameter accuracy obtained the highest, and the good stability of DATA REASONING;
(4) detection method of a kind of condenser type wire diameter of thread steel on-line measurement system of the present invention, its data processing section is by Framework Standards database, and adopt the method for local linearization, estimation of deviation computing, dexterously the diameter of screw-thread steel is calculated, accurately can realize on-line measurement;
(5) detection method of a kind of condenser type wire diameter of thread steel on-line measurement system of the present invention, the screw-thread steel diameter of actual production and the departure of screw-thread steel diameter is obtained by data operation process, the method can reduce the production rejection rate of screw-thread steel, improves production efficiency and the management level of enterprise.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of condenser type wire diameter of thread steel on-line measurement system of the present invention;
Fig. 2 is the schematic diagram that in the detection method of a kind of condenser type wire diameter of thread steel on-line measurement system of the present invention, local linearization calculates.
Label declaration in schematic diagram: 1-milling train; 2-screw-thread steel; 3-cylindrical element; 4-collector ring; 5-capacitance measurement module; 6-filtration module; 7-data operation module; 8-data disaply moudle.
Embodiment
For understanding content of the present invention further, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
A kind of condenser type wire diameter of thread steel on-line measurement system of the present embodiment, its structural representation as shown in Figure 1, condenser type wire diameter of thread steel on-line measurement system of the present invention comprises cylindrical element 3, collector ring 4, capacitance measurement module 5, filtration module 6, data operation module 7 and data disaply moudle 8, the wherein hollow cylindrical configuration of cylindrical element 3 in both ends open, screw-thread steel 2 to be measured passes from the axial centerline of cylindrical element 3, the first capacitance pole is drawn from the end of cylindrical element 3 one end, cylindrical element 3 of the present invention is metalwork, and be positioned at the exit of milling train 1, in the present embodiment, the exit distance of the left end distance milling train 1 of cylindrical element 3 is 1.0m, in the present invention, the outer diameter of cylindrical element 3 is applicable to 3 ~ 10 times that get screw-thread steel 2 diameter, the diameter range of screw-thread steel 2 is 6 ~ 50mm, in the present embodiment, the outer diameter of cylindrical element 3 is taken as 100mm, the length of cylindrical element 3 of the present invention is that the longer the better in theory, but the real cost of considering and export the factors such as screw-thread steel 2 shock range is more larger from milling train 1, the length of cylindrical element 3 of the present invention should select 50 ~ 100cm, in the present embodiment, the length of cylindrical element 3 is taken as 80cm.Short circuit is caused for contacting with cylindrical element 3 of the present invention when preventing that in actual production process, screw-thread steel 2 is beated, can at the top layer of cylindrical element 3 coating heat-resistant anticorrosive isolation protective material, for the protection of the cylindrical element 3 of metal material.
Collector ring 4 of the present invention is arranged at the exit of milling train 1, between the endpiece and the left end of cylindrical element 3 of milling train 1, and contact with screw-thread steel 2, in order to ensure that collector ring 4 and screw-thread steel 2 can good contacts, collector ring 4 of the present invention adopts rotatable copper ring texture, and adopt spring supporting to fix, the second capacitance pole is drawn from collector ring 4, cylindrical element 3 of the present invention and screw-thread steel 2 form cylindrical capacitor, insulating medium between cylindrical element 3 and screw-thread steel 2 is air, and the relative dielectric constant of air approximates 1, by the first above-mentioned capacitance pole and the second capacitance pole access capacitance measurement module 5, this capacitance measurement module 5 is for measuring the capacitance of cylindrical capacitor, circuit module and the instrument that can realize capacitance measurement and filter function are a lot, the capacitance of cylindrical capacitor measured by the TH2617B type capacitance meter selecting Changzhou Tonghui Electronics Co., Ltd. to produce in the present embodiment, this TH2617B type capacitance meter has filtration module 6 simultaneously, in the present invention, filtering process is carried out to the capacitance signal detected, to reduce interference, the output terminal of the TH2617B type capacitance meter that the present embodiment adopts and data operation module 7, data disaply moudle 8 is connected successively.
Data operation module 7 of the present invention processes the capacitance detected, thus calculate diameter and the departure of screw-thread steel 2 to be measured, this data operation process can adopt chip microcontroller, also related data can be sent into industrial computer, industrial computer realizes according to writing corresponding data processing software in following process, the present embodiment adopts visual c++ 6.0 to write computing monitoring software, the method of its data operation is as described below, and the diameter of screw-thread steel 2 the most to be measured and departure are sent to data disaply moudle 8 and are shown.
The detection method of a kind of condenser type wire diameter of thread steel on-line measurement system of the present invention, its concrete steps are as follows:
Step (1), Criterion database:
Be Ф by multiple diameter
ithe screw-thread steel 2 of standard specification in the environment identical with actual production under off-line state through cylindrical element 3, capacitance measurement module 5 measures the capacitance of now cylindrical capacitor by the first capacitance pole and the second capacitance pole, and module 6 obtains corresponding capacitance C after filtering
i, wherein: Ф
ifor screw-thread steel 2 diameter of standard specification, C
ifor diameter is Ф
ithe capacitance of screw-thread steel 2 correspondence of standard specification, thus obtain (C
i, Ф
i) standard database, wherein Ф
ivalue be 6,8,10,12,16,18,20,22,25,32,40,50mm;
Step (2), detection operating mode capacitance C
x:
When screw-thread steel 2 to be measured is through cylindrical element 3, capacitance measurement module 5 measures the capacitance of now cylindrical capacitor by the first capacitance pole and the second capacitance pole, and module 6 obtains corresponding capacitance C after filtering
x, wherein: C
xfor diameter Ф to be measured
xthe capacitance of screw-thread steel 2 correspondence;
Step (3), data processing:
Step (2) is detected the capacitance C obtained
xbe sent to data operation module 7, carry out local linearization, diameter Ф that estimation of deviation computing obtains screw-thread steel 2 to be measured
xwith the departure ΔΦ of screw-thread steel 2 diameter, as shown in Figure 2, concrete computation process is as follows for the principle of wherein local linearization calculating:
A) according to the screw-thread steel 2 diameter Ф of current production
mspecification, from standard database (C
i, Ф
i) in extract and the two groups of data (C being close of screw-thread steel 2 diameter produced
1, Ф
1) and (C
2, Ф
2), wherein: Ф
1for the screw-thread steel 2 diameter specifications Ф than current production
mthe normal diameter of a little specification, C
1be as the criterion database (C
i, Ф
i) middle Ф
1corresponding capacitance, Ф
2for the screw-thread steel 2 diameter specifications Ф than current production
mthe normal diameter of a large specification, C
2be as the criterion database (C
i, Ф
i) middle Ф
2corresponding capacitance; Such as, screw-thread steel 2 specification that Current demands is produced is diameter Ф
mfor 20mm, then from standard database (C
i, Ф
i) middle extraction (C
18, Ф
18) and (C
22, Ф
22) two groups of data.In the present invention, if the screw-thread steel 2 diameter Ф of current production
mspecification be build (C
i, Ф
i) standard database in minimum gauge, then above-mentioned Ф
1get the screw-thread steel 2 diameter Ф of current production
mspecification, C
1be as the criterion database (C
i, Ф
i) middle Ф
1corresponding capacitance, above-mentioned Ф
2be still the screw-thread steel 2 diameter specifications Ф than current production
mthe normal diameter of a large specification, C
2be as the criterion database (C
i, Ф
i) middle Ф
2corresponding capacitance; If the screw-thread steel 2 diameter Ф of current production
mspecification be build (C
i, Ф
i) standard database in maximum specification, then above-mentioned Ф
2get the screw-thread steel 2 diameter Ф of current production
mspecification, C
2be as the criterion database (C
i, Ф
i) middle Ф
2corresponding capacitance, above-mentioned Ф
1be still the screw-thread steel 2 diameter specifications Ф than current production
mthe normal diameter of a little specification, C
1for standard database (C
i, Ф
i) middle Ф
1corresponding capacitance.
B) by (C
1, Ф
1) and (C
2, Ф
2) bring formula (1-1) into:
B can be calculated, wherein: b is intercept;
C) by above-mentioned (C
1, Ф
1), (C
2, Ф
2), the capacitance C that obtains of intercept b and detection
xbring formula (1-2) into,
The diameter Ф of screw-thread steel 2 to be measured can be calculated
x, wherein: Ф
xfor screw-thread steel 2 diameter to be measured, C
xfor diameter Ф to be measured
xthe capacitance of screw-thread steel 2 correspondence;
D) by the screw-thread steel 2 format diameter Ф of current production
mwith the diameter Ф of the above-mentioned screw-thread steel to be measured 2 calculated
xbring formula (1-3) into:
ΔΦ=Ф
x-Ф
m（1-3）
Calculate and obtain the departure ΔΦ of screw-thread steel 2 diameter;
Step (4), data show:
By the diameter Ф of screw-thread steel to be measured 2 calculated in step (3)
xbe sent to data disaply moudle 8 with departure ΔΦ to be shown.
The detection method of a kind of condenser type wire diameter of thread steel on-line measurement system of the present invention, cylindrical capacitor is constructed by cylindrical element 3, and establish the electric capacity-diameter data storehouse of standard, the diameter measuring screw-thread steel 2 is achieved by the mode of Detection capacitance value, the technology such as the laser scanning method compared to existing technology and photoelectric camera shooting, structure is simple, and it is economical, easily realize the diameter of high-acruracy survey screw-thread steel 2, achieve on-line measurement and the display of screw-thread steel 2 diameter, alleviate labour intensity, improve production efficiency, the production rejection rate of screw-thread steel 2 can also be reduced, improve production efficiency and the management level of enterprise.
Schematically above be described invention and embodiment thereof, this description does not have restricted, and also just one of the embodiments of the present invention shown in accompanying drawing, actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the invention aim, without creatively designing the frame mode similar to this technical scheme and embodiment, all should protection scope of the present invention be belonged to.
Claims (1)
1. the detection method of a condenser type wire diameter of thread steel on-line measurement system, it is characterized in that: condenser type wire diameter of thread steel on-line measurement system comprises cylindrical element (3), collector ring (4), capacitance measurement module (5), filtration module (6), data operation module (7) and data disaply moudle (8), described cylindrical element (3) hollow cylindrical configuration in both ends open, screw-thread steel to be measured (2) passes from the axial centerline of cylindrical element (3), draws the first capacitance pole from the end of cylindrical element (3) one end; Described collector ring (4) is arranged at the exit of milling train (1), and contact with screw-thread steel to be measured (2), the second capacitance pole is drawn, described cylindrical element (3) and screw-thread steel to be measured (2) composition cylindrical capacitor from collector ring (4); The first above-mentioned capacitance pole and the second capacitance pole access capacitance measurement module (5), this capacitance measurement module (5) is for measuring the capacitance of cylindrical capacitor, and described capacitance measurement module (5), filtration module (6), data operation module (7), data disaply moudle (8) connect successively; The steps include:
1) Criterion database:
Be Ф by multiple diameter
ithe screw-thread steel (2) of standard specification in the environment identical with actual production under off-line state through cylindrical element (3), capacitance measurement module (5) measures the capacitance of now cylindrical capacitor by the first capacitance pole and the second capacitance pole, and module (6) obtains corresponding capacitance C after filtering
i, wherein: Ф
ifor screw-thread steel (2) diameter of standard specification, C
ifor diameter is Ф
icapacitance corresponding to the screw-thread steel (2) of standard specification, thus obtain (C
i, Ф
i) standard database, wherein Ф
ivalue be 6,8,10,12,16,18,20,22,25,32,40,50mm;
2) operating mode capacitance C is detected
x:
When screw-thread steel (2) to be measured is through cylindrical element (3), capacitance measurement module (5) measures the capacitance of now cylindrical capacitor by the first capacitance pole and the second capacitance pole, and module (6) obtains corresponding capacitance C after filtering
x, wherein: C
xfor diameter Ф to be measured
xcapacitance corresponding to screw-thread steel (2);
3) data processing:
By step 2) detect the capacitance C obtained
xbe sent to data operation module (7), carry out local linearization, diameter Ф that estimation of deviation computing obtains screw-thread steel to be measured (2)
xwith the departure ΔΦ of screw-thread steel to be measured (2) diameter, concrete computation process is as follows:
A) according to screw-thread steel (2) the diameter Ф of current production
mspecification, from standard database (C
i, Ф
i) in extract and the two groups of data (C being close of screw-thread steel (2) diameter produced
1, Ф
1) and (C
2, Ф
2), wherein: Ф
1for screw-thread steel (2) the diameter specifications Ф than current production
mthe normal diameter of a little specification, C
1be as the criterion database (C
i, Ф
i) middle Ф
1corresponding capacitance, Ф
2for screw-thread steel (2) the diameter specifications Ф than current production
mthe normal diameter of a large specification, C
2be as the criterion database (C
i, Ф
i) middle Ф
2corresponding capacitance;
B) by (C
1, Ф
1) and (C
2, Ф
2) bring formula (1-1) into:
B can be calculated, wherein: b is intercept;
C) by above-mentioned (C
1, Ф
1), (C
2, Ф
2), the capacitance C that obtains of intercept b and detection
xbring formula (1-2) into,
The diameter Ф of screw-thread steel to be measured (2) can be calculated
x, wherein: Ф
xfor screw-thread steel (2) diameter to be measured, C
xfor diameter Ф to be measured
xcapacitance corresponding to screw-thread steel (2);
D) by screw-thread steel (2) the format diameter Ф of current production
mwith the diameter Ф of the above-mentioned screw-thread steel to be measured (2) calculated
xbring formula (1-3) into:
ΔΦ＝Ф
x-Ф
m(1-3)
Calculate and obtain the departure ΔΦ of screw-thread steel to be measured (2) diameter;
4) data display:
By step 3) in the diameter Ф x of screw-thread steel to be measured (2) that calculates and departure ΔΦ be sent to data disaply moudle (8) and shown.
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| CN201310473828.4A CN103471496B (en) | 2012-05-15 | 2012-05-15 | A kind of detection method of condenser type wire diameter of thread steel on-line measurement system |
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| CN201310473828.4A CN103471496B (en) | 2012-05-15 | 2012-05-15 | A kind of detection method of condenser type wire diameter of thread steel on-line measurement system |
| CN2012101497703A CN102636104B (en) | 2012-05-15 | 2012-05-15 | Capacitive threaded steel wire diameter on-line measurement system |
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| CN201310473828.4A Active CN103471496B (en) | 2012-05-15 | 2012-05-15 | A kind of detection method of condenser type wire diameter of thread steel on-line measurement system |
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| CN108303017A (en) * | 2018-04-13 | 2018-07-20 | 昆明理工大学 | A kind of measuring device and method of cable diameter |
| CN110836631B (en) * | 2019-11-22 | 2023-06-13 | 青岛理工大学 | Device and method for detecting steel bars in concrete |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU575469A1 (en) * | 1975-10-15 | 1977-10-05 | Предприятие П/Я Г-4132 | Device for contactless check-up of wire diameter |
| CN101311666A (en) * | 2007-05-25 | 2008-11-26 | 松下电工株式会社 | Displacement transducer |
| CN101493310A (en) * | 2009-01-21 | 2009-07-29 | 哈尔滨工业大学 | Cylinder type bidirectional capacitance displacement sensor with across double-window counter electrode structure |
| CN101561240A (en) * | 2009-05-31 | 2009-10-21 | 哈尔滨工业大学 | Spherical capacitance pole plate based ultra-precision non-contact type three-dimensional aiming and measuring sensor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10264004A (en) * | 1997-03-25 | 1998-10-06 | Tokyo Seimitsu Co Ltd | Wire diameter detecting device for wire saw, and wire saw using it |
| CN202547588U (en) * | 2012-05-15 | 2012-11-21 | 安徽工业大学 | Capacitance type online measurement system for thread-steel line diameter |
-
2012
- 2012-05-15 CN CN2012101497703A patent/CN102636104B/en not_active Expired - Fee Related
- 2012-05-15 CN CN201310473828.4A patent/CN103471496B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU575469A1 (en) * | 1975-10-15 | 1977-10-05 | Предприятие П/Я Г-4132 | Device for contactless check-up of wire diameter |
| CN101311666A (en) * | 2007-05-25 | 2008-11-26 | 松下电工株式会社 | Displacement transducer |
| CN101493310A (en) * | 2009-01-21 | 2009-07-29 | 哈尔滨工业大学 | Cylinder type bidirectional capacitance displacement sensor with across double-window counter electrode structure |
| CN101561240A (en) * | 2009-05-31 | 2009-10-21 | 哈尔滨工业大学 | Spherical capacitance pole plate based ultra-precision non-contact type three-dimensional aiming and measuring sensor |
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| Publication number | Publication date |
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| CN102636104A (en) | 2012-08-15 |
| CN102636104B (en) | 2013-12-11 |
| CN103471496A (en) | 2013-12-25 |
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Application publication date: 20131225 Assignee: Xuzhou Yuanzhi innovative energy Co.,Ltd. Assignor: Xuzhou feisida new energy Co.,Ltd. Contract record no.: X2021980015973 Denomination of invention: A detection method of capacitive threaded steel wire diameter on-line measurement system Granted publication date: 20151223 License type: Exclusive License Record date: 20211222 |