CN101655455A - Paper color online detecting system for paper production line - Google Patents
Paper color online detecting system for paper production line Download PDFInfo
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- CN101655455A CN101655455A CN200910167607A CN200910167607A CN101655455A CN 101655455 A CN101655455 A CN 101655455A CN 200910167607 A CN200910167607 A CN 200910167607A CN 200910167607 A CN200910167607 A CN 200910167607A CN 101655455 A CN101655455 A CN 101655455A
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Abstract
The invention discloses a paper color online detecting system for a paper production line, which comprises an online detecting system, a scanning frame and a control system which are used for drivingthe online detecting system to move, a computer data processing system, wherein the control system receives signals for controlling electrical structures in the scanning frame through an interface, transmits the signals to a drive unit of the scanning frame through an interface, and drives devices supporting and installing in the online detecting system to move; the control system performs data communication with the online detecting system, receives detection feedback signals of the online detecting system, and transmits the feedback signals to the computer data processing system for processing. The invention has the beneficial effect of in-time and accurately detecting paper color indexes in production process, performing non-contact detection on detection sensors and papers, automatically calibrating with a built-in color plate, having special paper stabilizing technology and functions of dynamic data real-time display, over-error detection alarm, recording detection results of production process, and establishment of a database for inquiry.
Description
Technical field
The present invention relates to a kind of measuring system, be specifically related to a kind of on-line detecting system that is used for paper production line.
Background technology
The optical property of paper comprises whiteness, colourity, opacity etc., belongs to the diffusing characteristic diffuser of paper, is the very important indexs of paper kind such as cultural paper, newsprint, facing paper, high-grade art paper.According to the colorimetry principle, colour measurement comprises illumination and observation condition, observer's (people or observation instrument), object of observation, international lighting association (CIE) formulates detailed standard, according to these standards, paper industry is formulated at the optical property of paper corresponding national standards, and paper color is measured must satisfy these standard-requireds.
The instrument that is used for the paper color measurement now has two kinds, and a kind of is colorimeter, and another kind is the spectrum spectrophotometric color measurement instrument.Colorimeter obtains the method for chromatic value and is finished by instrument internal optical analogy integration, just with the rectify an instrument spectral characteristic of light source and detecting element of color filter, make output electric signal size be proportional to the tristimulus values of color, so coordinate mutually with people's vision.At present, it is very approaching that the spectrophotometric result and the human eye of computing machine and the simulation of many group color filters is equipped with in advanced colorimeter inside, and measuring accuracy can reach per mille.
Spectrum spectrophotometric color measurement instrument home products is more, as JY2000.According to the color measuring standard of International Commission on Illumination (CIE) regulation, require to develop according to the geometrical optical characteristic of ISO2469 (GB/T7973) standard code.This spectrum spectrophotometric color measurement instrument is primarily aimed at the laboratory environment service condition and designs, and based on traditional integrating sphere technology, the test paper must be close to measurement window.This Instrument measuring precision height obtains to be extensive use of in the laboratory, carries out on-line measurement but this optics framework can't be used for production line.
And these two kinds of instruments exist following defective:
(1) must contact measurement
Detected object must be close to detection window during measurement, just can normally measure.And require non-cpntact measurement on the production line.This is because contact measurement scratches measuring object easily, and the jelly of paper surface, fiber, the easy pollution detection window of dust influence measuring accuracy.
(2) can only multilayer measure
Need multi-layered paper to stack when measuring paper color and measure, eliminate light transmission influence, the especially stronger low quantitative cultural paper of light transmission of paper, the stack number of plies is more, measures for individual layer, and measuring accuracy can't guarantee.Measure and can only carry out individual layer on the production line.
(3) measurement environment requires harsh
Be primarily aimed at laboratory environment and use, up to more than 70 degree, dust is big, high humidity, abominable working environment that static is strong for environment temperature on the paper production line, and measuring accuracy can't guarantee.
(4) detection means lags behind
Existing detection means is after finishing in a stage of production run, become paper to roll off the production line, take a sample, send the laboratory to detect and just can know the chromatic value of paper, and in this section production run, can't predict, promptly detect afterwards, the serious hysteresis, in time adjusting process influences product quality, even the generation substandard products, reduce production efficiency.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of process conditions according to paper production line, working environment, technological process, She Ji the paper color online detecting system that on paper production line, uses pointedly, can detect index such as paper color in the production run timely and accurately, satisfied pressing for of producing, improved product quality and production efficiency.
For solving above-mentioned technical matters, the present invention by the following technical solutions:
A kind of paper color online detecting system that is used for paper production line, this system comprises on-line detecting system
Be used to drive the scanning support of on-line detecting system motion and control system, computer data processing system; This scanning support comprises device, drive transmission and the control electrical structure that supports and on-line detecting system is installed; Control system receives the signal of control electrical structure in the scanning support by interface, by interface signal is transferred to the drive transmission of scanning support, drives the device motion of supporting and installing on-line detecting system again; Control system is carried out data communication by interface and on-line detecting system, receives the detection feedback signal of on-line detecting system, by network interface feedback signal is passed to computer data processing system again and handles.
Further technical scheme is: described on-line detecting system is divided into detection head, following detection head; The described detection head inside of going up comprises three unit, and first module comprises constant current source, light source, lens, optical fiber, and Unit second comprises miniature optical splitter of two-way and photodetector; Unit the 3rd comprises Single Chip Microcomputer (SCM) system and data-interface; Diffusing of paper through lens focus, Optical Fiber Transmission, the optical splitter beam split, form band at the photodetector photosurface, after overexposure, in photodetector, form electric impulse signal, carry out digital collection and control, by data-interface and computer data processing system communication by Single Chip Microcomputer (SCM) system.
The described optical signal detecting that goes up detection head inside is divided into two-way, one tunnel lens that are equipped with through the first optical fiber front end, at the light signal of collecting paper reflection perpendicular to paper orientation, send into first optical splitter through first optical fiber, the first optical splitter beam split forms band through the first photodetector photosurface, through overexposure, band is converted to electric signal, and through the digitized processing of first A/D converter, digital signal is stored in first buffer memory; The lens that another road second optical fiber front end is equipped with, at the light signal of collecting paper reflection perpendicular to paper orientation, send into second optical splitter through second optical fiber, the second optical splitter beam split, form band at the second photodetector photosurface, second photodetector is converted to electric signal with band, and through the digitized processing of second A/D converter, digital signal is stored in second buffer memory.
Described detection head down comprises four unit, and first module comprises the drive system of shade-block and driving shade-block, and Unit second is the paper stabilization element, and Unit the 3rd is the lifting table system unit, and Unit the 4th is a Single Chip Microcomputer (SCM) system; Send instruction by Single Chip Microcomputer (SCM) system, the position of control lifting table system unit sends pulse control shade-block and the drive system that drives shade-block, and single-chip microcomputer also will be controlled the paper stabilization element simultaneously.
The present invention is all right:
The 4th unit Single Chip Microcomputer (SCM) system of described detection head down receives the first module shade-block rotation command of detection head down by the I/O interface, and send pulse to stepper motor driver driving dynamo-electric machine of step, the shade-block runner is installed on the rotor of stepper motor, and shade-block is installed on the shade-block runner; Described Unit second of detection head down comprises first segment air valve, first solenoid valve and paper stabilizator, pressurized air regulates by the first segment air valve that the tolerance size is laggard goes into first solenoid valve, Single-chip Controlling first solenoid valve opens and closes, and makes pressurized air enter the paper stabilizator by first solenoid valve and is used for stablizing paper; Unit the 3rd of following detection head comprises second air throttle, second solenoid valve and lifting table, pressurized air regulates by second air throttle that the tolerance size is laggard goes into second solenoid valve, the switching of Single-chip Controlling second solenoid valve, the air inlet and the exhaust of the cylinder of the open and close controlling lifting table of second solenoid valve, thereby the position of control lifting table.
Described light source adopts the halogen tungsten light source, and visible light emitted obtains illumination light through balanced-filter, and halogen tungsten lamp is by constant current source power supply, stabilized illumination intensity.
The device of the support of last described scanning support and installation on-line detecting system comprises the scanning support crossbeam, carriage, be used to install, going up of following detection head detects the storehouse, under detect the storehouse, drive transmission and control electrical structure comprise frequency converter, motor, driving wheel, engaged wheel and linear guides, scanning support crossbeam one end is installed frequency converter, the other end is installed motor, driving wheel is installed on the motor shaft, one end of frequency converter is installed at the scanning support crossbeam engaged wheel is installed, there is belt to connect between driving wheel and the engaged wheel, linear guides is installed on the scanning support crossbeam, slide block on the linear guides is installed and is supported dolly, support on the dolly carriage is installed, be used to install, going up of following detection head detects the storehouse, under detect the storehouse and be installed on the carriage; During scanning, the frequency converter drive motor rotates, and drives driving wheel and rotates, thereby drive belt movement, and belt drives dolly and moves around along linear guides (73).
On the described motor shaft scrambler is installed, this scrambler links to each other with control system, and is used to monitor moving of dolly scanning with the proximity transducer cooperation that is installed on the scanning support crossbeam.
Principle of work of the present invention is as follows: the paper color on-line measurement system that is used for paper production line comprises online detection head, control system, computer data processing system, scanning support etc.Detection head is made up of two parts up and down, and it is mobile on paper that scanning support drives detection head, and 1 meter of displacement realizes the colourity of online non-cpntact measurement paper, and the measuring position can be set as required, and system Hui Ku automatically carries out normalizing operation etc.System adopts 45 degree ring illuminations, 0 degree observation position mode, the two-way detection technique, and online in real time detects the reflected light composition of paper, and data message is transferred to computing machine by the SOC system through Ethernet interface, and analyzing and processing data is set up database, calculates in real time.
Characteristics be embodied in following some:
(1) light source
Adopt the halogen tungsten light source, visible light emitted obtains illumination light through balanced-filter.Halogen tungsten lamp is by constant current source power supply, stabilized illumination intensity.
(2) 45/0 ring illuminations
Light projects on the paper with miter angle on 360 degree directions through reflection cone and annular reflector, forms illumination hot spot uniformly, can solve the influence of paper texture to measuring.
(3) detecting device
Adopt miniature optical splitter of two-way and ccd detector, detect the reflectance spectrum of page on different back pads simultaneously.Diffusing of paper through lens focus, Optical Fiber Transmission, grating beam splitting, form band at the ccd detector photosurface, after overexposure, in CCD, form electric impulse signal, carry out digital collection and control by Single Chip Microcomputer (SCM) system, and realizing single-chip microcomputer and Computer Data Communication, computer system is carried out data processing.
(4) paper stabilizator
The paper stabilizator by the suction that high velocity air produces, guarantees that the paper of high-speed motion passes sensor reposefully, reduces sheet flutter, and makes paper remain on discontiguous position near back pad, thus the accuracy of assurance measurement result.
(5) scanning support
Form by supporting traverse, C type frame, driving control unit.1 meter of detection head displacement can be adjusted according to actual user's needs.Adopt frequency conversion control technique control motor-driven C type frame on paper, to move, realize dynamically, one-point measurement, and carry out function such as normalizing operation.
(6) computer data is handled
Sampling AD value is standardized, and carries out normalized according to time shutter and enlargement factor; Impurity elimination astigmatism, dark current are eliminated drift, ambient light effects; Cleanliness standardization obtains the reflectivity data of sample; According to the two-way reflectivity data that measures, calculate the internal reflection factor, calculate chromaticity coordinate; Compare analysis according to on-line measurement result and ownership goal parameter, instruct and produce; Set up database, preserve record of production, information such as configuration parameter.
Compared with prior art, the invention has the beneficial effects as follows: the present invention is according to process conditions, working environment, the technological process of paper production line, design the paper color measuring system of on production line, using pointedly, can detect paper color index in the production run timely and accurately; And detecting sensor and paper carry out non-contact detecting, automatic standardizing is handled, built-in colourity plate automatic calibration, distinctive paper stabilization technique, the compensation of paper light transmission, having dynamic data shows in real time, overproof detection alarm, the testing result of record production run is set up database and is convenient to inquiry etc., satisfy pressing for of producing, improved product quality and production efficiency.
Description of drawings
Fig. 1 is the scanning support structural representation of the embodiment of the invention;
Fig. 2 is upper and lower detection head structured flowchart;
Fig. 3 is that control system is connected block diagram with the scanning support electrical structure;
Fig. 4 is the computer software process flow diagram.
In the accompanying drawing: cabin under 60--proximity transducer, 61-frequency converter, 62-motor, 63-scrambler, 70--engaged wheel, 71-belt, 72-limit switch, 73--linear guides, 74-dolly, 75--driving wheel, 76C type frame, 77-detection head upper-deck cabin, the 78--detection head
The 1-paper
Embodiment
Below in conjunction with accompanying drawing preferred implementation of the present invention is further elaborated.
As shown in Figure 1, at an end of scanning support crossbeam 10 frequency converter 61 is installed, the other end is installed motor 62, and driving wheel 75 is installed on motor shaft, and frequency converter 61 1 ends are installed engaged wheel 70, has odontoid belt 71 to connect between driving wheel 75 and engaged wheel 70.Be connected on the dolly 74 in the middle of the odontoid belt 71.At scanning support crossbeam 10 a pair of linear guides 73 is installed, the slider support dolly 74 on the linear guides 73.C type frame 76 is installed on the dolly 74, be equipped with on the C type frame 76 and detect storehouse 77 and detect storehouse 78, wherein detect storehouse 77 and install detection head, detect storehouse 78 detection head down is installed, upper and lower detection head passes from detection head is middle up and down at vertical direction appearance paper 1 separated by a distance.Scrambler 63 is installed on the motor shaft, produces photoimpact, the position when being used from the scanning of monitoring dolly with proximity transducer 60 signals one, and limit switch 72 avoids dolly to scan effective range.During scanning, frequency converter 61 drive motor 62 rotate, and drive driving wheel 75 and rotate, thereby drive belt 71 motions, and belt 71 drives dolly 74 and moves around along linear guides 73.Scanning support just can drive detection head and move on paper, and displacement therefore just realized the colourity of online non-cpntact measurement paper, and the measuring position can be set as required also about 1 meter.
Fig. 2 is the internal circuit block diagram of detection head, and wherein the first half is the circuit block diagram of last detection head, and light source is 12 volts of long-life halogen tungsten lamps in the last detection head, produces the visible light of continuous spectrum, and constant current source is given light source power supply, guarantees that light stability ground is luminous.Visible light collimates through the light tube, the filtering infrared light, and the directional light of generation shines on the light cone, become miter angle with the conical surface of light cone, the direct reflection of the conical surface of process light cone forms the annular ring of light, shine on the cylindrical reflector, reverberator is annular cylindrical mirror, and concave surface is coated with highly reflecting films, and light produces direct reflection on reflectance coating, with miter angle annular irradiation tester, evenly illuminate, form the test hot spot, 20 to 30 centimetres of spot diameters.Ring illumination makes that hot spot brightness is even.Optical signal detecting is divided into two-way, one tunnel lens that are equipped with through the first optical fiber front end, at the light signal of collecting paper reflection perpendicular to paper orientation, send into first optical splitter through first optical fiber, the first optical splitter beam split forms band, first photodetector is a line array CCD, 2048 pixel cells are arranged, these pixel cells are through overexposure, band is converted to electric signal, and through digitized processing, the resolution of first A/D converter is 16 bits, promptly pixel cell produces the digital signal of two bytes, and digital signal is stored in first buffer memory.The lens that another road second optical fiber front end is equipped with, at the light signal of collecting paper reflection perpendicular to paper orientation, send into second optical splitter through second optical fiber, the second optical splitter beam split forms band, second photodetector is a line array CCD, 2048 pixel cells are arranged, these pixel cells are through overexposure, band is converted to electric signal, through digitized processing, the resolution of second A/D converter is 16 bits, and promptly pixel cell produces the digital signal of two bytes, and digital signal is stored in second buffer memory.SOC is an embedded single-chip computer system, produces control signal, produces the sequential logic signal through gate array, controls first photodetector, and first A/D converter carries out data acquisition and storage.SOC reads first data in buffer, through Filtering Processing, by serial ports and driver and upper machine communication.
The latter half among Fig. 2 is the circuit block diagram of following detection head.Single-chip microcomputer receives the shade-block rotation command by the I/O interface.Single-chip microcomputer sends pulse by the stepper motor driver drive stepping motor, and the shade-block runner is installed on the rotor of stepper motor, and shade-block is installed on the runner.Shade-block has three kinds of plates, standard white plate, inspection panel, black and white plate.Standard white plate uses when carrying out standardization in system, and service test plate during System self-test uses the black and white plate when normal the measurement.Pressurized air regulates by the first segment air valve that the tolerance size is laggard goes into first solenoid valve, and Single-chip Controlling first solenoid valve opens and closes, and makes pressurized air enter the paper stabilizator by first solenoid valve, produces cyclone, forms negative pressure, stablizes paper.Pressurized air regulates by second air throttle that the tolerance size is laggard goes into second solenoid valve, and Single-chip Controlling second solenoid valve opens and closes, the air inlet and the exhaust of the cylinder of the open and close controlling lifting table of second solenoid valve, thereby the stretching out and bounce back of control lifting table.When needs were selected shade-block, single-chip microcomputer at first sent instruction, made lifting table rise, and sent the rotation of pulse control step motor again, and after being rotated in place, stepper motor stops operating, and single-chip microcomputer sends instruction and makes the lifting table return.
Fig. 3 is the circuit block diagram of switch board.SOC is an embedded single-chip computer system, and major function is to carry out data communication by 485 interfaces and last detection head.Communicate by letter with computer system by the TCP/IP interface.Every receiving proximity transducer, photoelectric encoder signal, send the work of signal controlling frequency converter by I/O interface, light, thus the operation of control motor.Button produces switching signal, realizes scanning support Hui Ku, online, the offline function of system, manually standard functions.
Computer data is handled
The software processing flow process as shown in Figure 4.Comprise master routine, wavelength scaling subroutine, standardization subroutine.
Master routine:
System boot and initialization S1, set up online with slave computer, the download state parameter, judge whether wavelength scaling S2, as judge whether to carry out standardization S3 when not having, as enter test procedure when not having, the AD value that receives is carried out smothing filtering S4, according to the current exposure and the enlargement factor of amplifier, the AD value is carried out normalization S5, utilize standardization result that standardisation process obtains and current normalization AD value to calculate S6, obtain reflectivity data, utilize the reflectivity data of two passages to carry out internal reflection factor calculating S7, utilize result of calculation to calculate chromaticity coordinate S8, dynamically show S9 chromaticity coordinate and reflectivity number curve, judge whether S10 continues test, do not proceed next loop test in the time of, stop the S11 test when being.
The wavelength scaling subroutine:
After entering subroutine, at first carry out smothing filtering S30 and handle, the method that the identical pixel value of measurement result repeatedly is averaged is eliminated shake, export a frame AD data stream.Then each cell value and the calibration characteristic wavelength of AD data stream are compared, set up the corresponding relation of pixel sequence number and wavelength, carry out curve fitting, obtain calibration coefficient S32, preserve S33 and download calibration coefficient, stop calibration.
The standardization subroutine:
After entering subroutine, state parameter such as exposure and enlargement factor S20 downloads to slave computer, send scanning support and return storehouse S2 instruction, send Instruction Selection standardization shade-block, collect standardization, carry out AD value normalization S22, AD value normalization result is repeatedly carried out smothing filtering S23, upgrade participating in the standardization result that colourity is calculated, and preserve standardization S24 as a result.
Claims (8)
1, a kind of paper color online detecting system that is used for paper production line is characterized in that: this system comprises on-line detecting system, be used to drive the scanning support of on-line detecting system motion and control system, computer data processing system; This scanning support comprises device, drive transmission and the control electrical structure that supports and on-line detecting system is installed; Control system receives the signal of control electrical structure in the scanning support by interface, by interface signal is transferred to the drive transmission of scanning support, drives the device motion of supporting and installing on-line detecting system again; Control system is carried out data communication by interface and on-line detecting system, receives the detection feedback signal of on-line detecting system, by network interface feedback signal is passed to computer data processing system again and handles.
2, the paper color online detecting system that is used for paper production line according to claim 1 is characterized in that: described on-line detecting system is divided into detection head, following detection head; The described detection head inside of going up comprises three unit, and first module comprises constant current source, light source, lens, optical fiber, and Unit second comprises miniature optical splitter of two-way and photodetector; Unit the 3rd comprises Single Chip Microcomputer (SCM) system and data-interface; Diffusing of paper through lens focus, Optical Fiber Transmission, the optical splitter beam split, form band at the photodetector photosurface, after overexposure, in photodetector, form electric impulse signal, carry out digital collection and control, by data-interface and computer data processing system communication by Single Chip Microcomputer (SCM) system.
3, the paper color online detecting system that is used for paper production line according to claim 2, it is characterized in that: the described optical signal detecting that goes up detection head inside is divided into two-way, one tunnel lens that are equipped with through the first optical fiber front end, at the light signal of collecting paper reflection perpendicular to paper orientation, send into first optical splitter through first optical fiber, the first optical splitter beam split, form band through the first photodetector photosurface, through overexposure, band is converted to electric signal, through the digitized processing of first A/D converter, digital signal is stored in first buffer memory; The lens that another road second optical fiber front end is equipped with, at the light signal of collecting paper reflection perpendicular to paper orientation, send into second optical splitter through second optical fiber, the second optical splitter beam split, form band at the second photodetector photosurface, second photodetector is converted to electric signal with band, and through the digitized processing of second A/D converter, digital signal is stored in second buffer memory.
4, according to claim 2 or the 3 described paper color online detecting systems that are used for paper production line, it is characterized in that: described detection head down comprises four unit, first module comprises shade-block and drives the drive system of shade-block, Unit second is the paper stabilization element, Unit the 3rd is the lifting table system unit, and Unit the 4th is a Single Chip Microcomputer (SCM) system; Send instruction by Single Chip Microcomputer (SCM) system, the position of control lifting table system unit sends pulse control shade-block and the drive system that drives shade-block, and single-chip microcomputer also will be controlled the paper stabilization element simultaneously.
5, the paper color online detecting system that is used for paper production line according to claim 4, it is characterized in that: the 4th unit Single Chip Microcomputer (SCM) system of described detection head down receives the first module shade-block rotation command of detection head down by the I/O interface, and send pulse to stepper motor driver driving dynamo-electric machine of step, the shade-block runner is installed on the rotor of stepper motor, and shade-block is installed on the shade-block runner; Described Unit second of detection head down comprises first segment air valve, first solenoid valve and paper stabilizator, pressurized air regulates by the first segment air valve that the tolerance size is laggard goes into first solenoid valve, Single-chip Controlling first solenoid valve opens and closes, and makes pressurized air enter the paper stabilizator by first solenoid valve and is used for stablizing paper; Unit the 3rd of following detection head comprises second air throttle, second solenoid valve and lifting table, pressurized air regulates by second air throttle that the tolerance size is laggard goes into second solenoid valve, the switching of Single-chip Controlling second solenoid valve, the air inlet and the exhaust of the cylinder of the open and close controlling lifting table of second solenoid valve, thereby the position of control lifting table.
6, the paper color online detecting system that is used for paper production line according to claim 2, it is characterized in that: described light source adopts the halogen tungsten light source, and visible light emitted obtains illumination light through balanced-filter, halogen tungsten lamp is by constant current source power supply, stabilized illumination intensity.
7, be used for the paper color online detecting system of paper production line according to described any of claim 1-3, it is characterized in that: the device of the support of scanning support and installation on-line detecting system comprises scanning support crossbeam (10), carriage (76), be used to install, going up of following detection head detects storehouse (77), under detect storehouse (78), drive transmission and control electrical structure comprise frequency converter (61), motor (62), driving wheel (75), engaged wheel (70) and linear guides (73), scanning support crossbeam (10) one ends are installed frequency converter (61), the other end is installed motor (62), on motor (62) axle driving wheel (75) is installed, one end of frequency converter (61) is installed at scanning support crossbeam (10) engaged wheel (70) is installed, there is belt (71) to connect between driving wheel (75) and the engaged wheel (70), linear guides (73) is installed on the scanning support crossbeam, slide block on the linear guides (73) is installed and is supported dolly (74), support dolly (74) and go up installation carriage (76), be used to install, going up of following detection head detects storehouse (77), under detect storehouse (78) and be installed on the carriage (76); During scanning, frequency converter (61) drive motor (62) rotates, and drives driving wheel (75) and rotates, thereby drive belt (71) motion, and belt (71) drives dolly (74) and moves around along linear guides (73).
8, the paper color online detecting system that is used for paper production line according to claim 7, it is characterized in that: scrambler (63) is installed on described motor (62) axle, this scrambler (63) links to each other with control system, and is used to monitor moving of dolly scanning with proximity transducer (60) cooperation that is installed on the scanning support crossbeam (10).
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| CN103487311A (en) * | 2013-09-11 | 2014-01-01 | 广东省东莞市质量监督检测中心 | Wet pulp sample placement apparatus and control method thereof |
| CN105953920A (en) * | 2016-06-29 | 2016-09-21 | 杭州龙鑫科技有限公司 | Color sensor test tool |
| CN106290177A (en) * | 2016-11-09 | 2017-01-04 | 浙江省农业科学院 | Tinned fruit color on-line determination device |
| CN107202800A (en) * | 2017-05-25 | 2017-09-26 | 四川莱源科技有限公司 | Suitable for the water analysis sensing device of yarn fabric |
| CN107329454A (en) * | 2017-07-28 | 2017-11-07 | 南通凯迪自动机械有限公司 | A kind of fireproofed paper moisture content automatic detection and control system |
| CN113245243A (en) * | 2021-06-23 | 2021-08-13 | 苏州鼎纳自动化技术有限公司 | Color difference detection equipment and use method thereof |
| CN115372283A (en) * | 2022-10-25 | 2022-11-22 | 佛山市顺德区康强装饰材料有限公司 | Color detection device of wear-resistant decorative paper |
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- 2009-09-11 CN CN2009101676078A patent/CN101655455B/en active Active
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| CN103487311A (en) * | 2013-09-11 | 2014-01-01 | 广东省东莞市质量监督检测中心 | Wet pulp sample placement apparatus and control method thereof |
| CN103487311B (en) * | 2013-09-11 | 2016-04-13 | 广东省东莞市质量监督检测中心 | A kind of wet pulp sample placing device and control method thereof |
| CN105953920A (en) * | 2016-06-29 | 2016-09-21 | 杭州龙鑫科技有限公司 | Color sensor test tool |
| CN106290177A (en) * | 2016-11-09 | 2017-01-04 | 浙江省农业科学院 | Tinned fruit color on-line determination device |
| CN107202800A (en) * | 2017-05-25 | 2017-09-26 | 四川莱源科技有限公司 | Suitable for the water analysis sensing device of yarn fabric |
| CN107329454A (en) * | 2017-07-28 | 2017-11-07 | 南通凯迪自动机械有限公司 | A kind of fireproofed paper moisture content automatic detection and control system |
| CN113245243A (en) * | 2021-06-23 | 2021-08-13 | 苏州鼎纳自动化技术有限公司 | Color difference detection equipment and use method thereof |
| CN115372283A (en) * | 2022-10-25 | 2022-11-22 | 佛山市顺德区康强装饰材料有限公司 | Color detection device of wear-resistant decorative paper |
| CN115372283B (en) * | 2022-10-25 | 2023-01-03 | 佛山市顺德区康强装饰材料有限公司 | Color detection device of wear-resistant decorative paper |
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| CN101655455B (en) | 2011-06-29 |
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