CN102527968A - Laser detection method and device for vibration of continuous casting mold - Google Patents
Laser detection method and device for vibration of continuous casting mold Download PDFInfo
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- CN102527968A CN102527968A CN2012100545358A CN201210054535A CN102527968A CN 102527968 A CN102527968 A CN 102527968A CN 2012100545358 A CN2012100545358 A CN 2012100545358A CN 201210054535 A CN201210054535 A CN 201210054535A CN 102527968 A CN102527968 A CN 102527968A
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Abstract
The invention relates to automatic detection of the metallurgical industry and aims at providing a laser detection method and device for the vibration of a continuous casting mold. The method is that a horizontal/vertical benchmark module is arranged on a mold platform, laser transmitted by a laser displacement sensor is reflected by the surface of the sensor to a receiving surface, so that a light spot position signal changing along with the vibration of the mold is obtained; then the light spot position signal is transmitted to a signal processor of a lower computer to complete signal conversion, filtering, signal conditioning and pretreatment; and then the obtained signal is transmitted to a system controller of an upper computer to perform analysis and computation to obtain speed and acceleration data for the analysis of the vibration polarization situation of the mold. According to the laser detection method and the device, the phenomena of complexity in dismounting and easily caused environmental effect in a contact type measurement method are avoided, the dismounting is simple and convenient, and the measurement accuracy can be guaranteed easily. Different measurement benchmark surfaces can be freely and quickly selected; and the transportability of data transformation is strengthened by the conversion from a serial port to a USB. An excellent machine interface is provided, and an operator can master the operation easily.
Description
Technical field
The present invention relates to metallurgical industry automation detection range, in particular, relate to a kind of laser detecting method and device of measuring mold oscillation towards the continuous casting of molten steel production equipment.
Background technology
Crystallizer is the key equipment of conticaster, is used for the strand moulding that continuous casting of iron and steel is produced.During continuous casting of iron and steel was produced, the vibration of crystallizer can make strand be able to forced stripper mechanism, helped the lubricated of strand, eliminated bonding, thereby improved slab surface quality.Can the whether appropriate continuous casting billet that is related to ordinary production and the quality of surface quality of continuously cast slab but the mold oscillation parameter is selected.In order to obtain the actual vibration parameter, commonly used at present is traditional artificial code table detection method of contact.Though the artificial code table detection method of contact can realize that to crystallizer state-detection to a certain degree owing to adopt contact to detect, the contact probe head that is adopted is easy to wearing and tearing; Service life is short, and influences workman's operation in high temperature, moist working site, and efficient is lower; Labour costs is higher, and the device hardware integrated level is low in addition, uses very inconvenient; Existence is than mistake, and is little to the directive significance of actual STEELMAKING PRODUCTION.Therefore develop a kind of contactless, high efficiency, cost is low, integrated level is high, the portable continuous cast mold vibration detection equipment of long service life, convenient and reliable operation seems very necessary.
Summary of the invention
The technical problem that the present invention will solve is that overcoming must be not enough in the prior art, the laser detecting method and the device that provide a kind of contactless continuous cast mold to vibrate.
In order to solve the problems of the technologies described above, the present invention realizes through following technical scheme.
A kind of laser detecting method of continuous cast mold vibration is provided, may further comprise the steps:
(1) level/vertical base modules is set on the crystallizer platform; The laser that laser displacement sensor sends is through level/vertically the level or the vertical surface of reference block reflex on the receiving surface of laser displacement sensor, obtain the light spot position signal that changes with mold oscillation;
(2) laser displacement sensor passes to the slave computer signal processor with its light spot position signal that receives, and converts the shift length signal to by the slave computer signal processor; The slave computer signal processor converts optical signal to the signal of telecommunication simultaneously, and carries out filtering, conditioning and Signal Pretreatment, will obtain stable signal then and be sent to the master system controller;
(3) the master system controller carries out analytical calculation to the received signal and handles, and acquisition speed and acceleration information to be being used to analyze the polarization situation of mold oscillation, and analysis result is shown on the display screen in real time.
Further, the invention provides a kind of device that is used to realize preceding method, comprise laser displacement sensor; Also comprise: the base modules of the corresponding level on the crystallizer platform of being positioned at that is provided with laser displacement sensor/vertically, laser displacement sensor connects slave computer signal processor and master system controller successively through holding wire.
As improvement, the air-bubble level that said laser displacement sensor bottom is provided with universal bearing and is used has with it guaranteed accuracy and rapidity that laser displacement sensor is measured.
As improvement, be provided with serial ports-USB converter between said slave computer signal processor and the master system controller, and realize connecting through holding wire.
As improvement, said master system controller is connected to touch display screen.
The present invention compared with prior art, beneficial effect is:
(1) avoid installing and removing complicacy in the contact measurement method and being prone to phenomenon affected by environment, the non-contact measurement mounting or dismounting are simple and convenient, and certainty of measurement guarantees easily.Accuracy of detection of the present invention is high, and the displacement detecting precision is superior to ± 0.01mm, and shaking frequently, accuracy of detection is superior to ± 1cpm (0.02Hz).
(2) laser displacement sensor can freely be selected different measuring basis surfaces fast, and each measuring basis surface can detect displacement, speed, acceleration, amplitude, frequency and the vibrational waveform deviation proportion of this direction crystallizer simultaneously.
(3) through the conversion of serial ports-USB, and the USB2.0 interface directly supplies power, and strengthened the portability of transfer of data.
(4) have good man-machine interface, through adjustment and the different demands that parameter realization different user is set, the easy operating personnel grasp operation.
Description of drawings
Fig. 1 is the system architecture sketch map;
Fig. 2 is system realization scheme figure;
Fig. 3 is vibration signal waveforms figure;
Fig. 4 is the hardware system module structure drafting;
Fig. 5 is master system control software flow pattern.
Reference numeral: laser head 1, crystallizer platform 2, level/vertical base modules 3, receiving surface 4, laser displacement sensor 5, slave computer signal processor 6, serial ports-USB converter 7, supervisory controller 8.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is done further detailed description.
The laser detector of continuous cast mold among the present invention vibration comprises laser displacement sensor 5, and corresponding with laser displacement sensor 5 be provided be positioned at the level/vertical base modules 3 on the crystallizer platform 2; Laser displacement sensor 5 connects slave computer signal processor 6, serial ports-USB converter 7 and master system controller 8 successively through holding wire.The air-bubble level that laser displacement sensor 5 bottoms are provided with universal bearing and are used with it, master system controller 8 is connected to touch display screen.
A plurality of levels/vertical base modules 3 can be set on the crystallizer platform 2; Laser displacement sensor 5 can freely be selected different measuring basis surfaces fast, and each measuring basis surface can detect displacement, speed, acceleration, amplitude, frequency and the vibrational waveform deviation proportion of this direction crystallizer simultaneously.
Serial ports-USB converter 7 converts the serial communication signal that slave computer signal processor 6 gets to the usb communication signal, conveniently directly is used for being connected with the mutual of master system controller 8.
During measurement, detailed process comprises:
(1) level/vertical base modules 3 is set on crystallizer platform 2; The laser that laser displacement sensor 5 sends is through level/vertically the level or the vertical surface of reference block 3 reflex on the receiving surface 4 of laser displacement sensor 5, obtain the light spot position signal that changes with mold oscillation;
(2) laser displacement sensor 5 passes to slave computer signal processor 6 with its light spot position signal that receives, and converts the shift length signal to by slave computer signal processor 6; Slave computer signal processor 6 converts optical signal to the signal of telecommunication simultaneously, and carries out filtering, conditioning and Signal Pretreatment, will obtain stable signal then and be sent to master system controller 8;
(3) master system controller 8 carries out analytical calculation to the received signal and handles, and acquisition speed and acceleration information to be being used to analyze the polarization situation of mold oscillation, and analysis result is shown on the display screen in real time.
Described master system controller 8 main initialization, the acceptance of being responsible for system are uploaded information and are carried out the analytical calculation processing and show the vibration signal that records in real time.Built-in signal analysis and processing module in the master system controller 8; Handle to be mainly by the described signal of its completing steps (3) the vibration displacement signal is carried out the A/D conversion; Signal after the conversion is carried out differential algorithm, empirical modal algorithm, FFT and low pass high-pass filtering to be handled; Thereby realize analyzing rate signal, the acceleration signal of crystallizer, analyze the polarization situation of mold oscillation simultaneously.
Specific embodiment of the present invention:
When the crystallizer scene is detected; At first with level/vertically base modules 3 is installed on the crystallizer platform 2; And it is adjusted to suitable position; With the level of the reference block 3 of the laser head 1 aligning level of laser displacement sensor 5/vertically or vertical surface, the reference block level of the laser head 1 that the adjusting through universal bearing makes laser displacement sensor 5 and level/vertically or vertically the distance on surface be in the range measurement category.The analog signal of laser displacement sensor 5 outputs is nursed one's health the suitable collection voltage signal of output through modulate circuit after handling through the signal filtering of slave computer signal processor 7 again.This voltage signal obtains data signal through the A/D switching controller, carries out Signal Pretreatment through slave computer signal processor 7 again, and collaborative other control informations of pretreated signal are transferred to serial ports-USB converter 7 through serial ports.The data that obtain are transferred to master system controller 8 according to set communication protocols, and are as shown in Figure 5.And with the transmission useful information be stored in the shared drive buffering area; Built-in signal analysis and processing module reads the data of buffering area in the master system controller 8; These data are the displacement data of mold oscillation waveform, this displacement data is carried out differential handle, and filtering interference signals obtains the rate signal of mold oscillation waveform again; This speed data is carried out differential handle, filtering interference signals obtains the acceleration signal of mold oscillation waveform again.The method of also having taked empirical modal to decompose to the rejecting of interfering signal has therebetween effectively been rejected interfering signal.Displacement, speed, acceleration information with the mold oscillation that obtains offers image display module display in touch display screen with other relevant informations again, satisfies requirement of client.
At last, it is also to be noted that what more than enumerate only is a specific embodiment of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (5)
1. the laser detecting method of a continuous cast mold vibration is characterized in that, may further comprise the steps:
(1) level/vertical base modules is set on the crystallizer platform; The laser that laser displacement sensor sends is through level/vertically the level or the vertical surface of reference block reflex on the receiving surface of laser displacement sensor, obtain the light spot position signal that changes with mold oscillation;
(2) laser displacement sensor passes to the slave computer signal processor with its light spot position signal that receives, and converts the shift length signal to by the slave computer signal processor; The slave computer signal processor converts optical signal to the signal of telecommunication simultaneously, and carries out filtering, conditioning and Signal Pretreatment, will obtain stable signal then and be sent to the master system controller;
(3) the master system controller carries out analytical calculation to the received signal and handles, and acquisition speed and acceleration information to be being used to analyze the polarization situation of mold oscillation, and analysis result is shown on the display screen in real time.
2. device that is used to realize the said method of claim 1; Comprise laser displacement sensor; It is characterized in that; Also comprise: the base modules of the corresponding level on the crystallizer platform of being positioned at that is provided with laser displacement sensor/vertically, laser displacement sensor connects slave computer signal processor and master system controller successively through holding wire.
3. device according to claim 2 is characterized in that, the air-bubble level that said laser displacement sensor bottom is provided with universal bearing and is used with it.
4. device according to claim 2 is characterized in that, is provided with serial ports-USB converter between said slave computer signal processor and the master system controller, and realizes connecting through holding wire.
5. device according to claim 2 is characterized in that, said master system controller is connected to touch display screen.
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| CN2012100545358A CN102527968A (en) | 2012-03-04 | 2012-03-04 | Laser detection method and device for vibration of continuous casting mold |
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| CN2012100545358A CN102527968A (en) | 2012-03-04 | 2012-03-04 | Laser detection method and device for vibration of continuous casting mold |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822767A (en) * | 2014-02-14 | 2014-05-28 | 上海市建筑科学研究院(集团)有限公司 | Curtain wall panel earthquake simulation system vibration performance parameter detection device and method thereof |
| CN110057303A (en) * | 2019-05-22 | 2019-07-26 | 广东工业大学 | A kind of linear displacement measurement device |
| CN110517240A (en) * | 2019-08-22 | 2019-11-29 | 联峰钢铁（张家港）有限公司 | A kind of conticaster state judging method and device |
| CN111044185A (en) * | 2019-12-25 | 2020-04-21 | 交通运输部公路科学研究所 | Method and device for measuring internal change by laser |
| CN114646281A (en) * | 2022-03-11 | 2022-06-21 | 北京海卓博尔科技有限公司 | Crystallizer vibration deflection detection device, detection method and detection system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822767A (en) * | 2014-02-14 | 2014-05-28 | 上海市建筑科学研究院(集团)有限公司 | Curtain wall panel earthquake simulation system vibration performance parameter detection device and method thereof |
| CN110057303A (en) * | 2019-05-22 | 2019-07-26 | 广东工业大学 | A kind of linear displacement measurement device |
| CN110057303B (en) * | 2019-05-22 | 2021-05-11 | 广东工业大学 | Linear displacement measuring device |
| CN110517240A (en) * | 2019-08-22 | 2019-11-29 | 联峰钢铁（张家港）有限公司 | A kind of conticaster state judging method and device |
| CN110517240B (en) * | 2019-08-22 | 2022-06-03 | 联峰钢铁（张家港）有限公司 | Method and device for judging continuous casting machine state |
| CN111044185A (en) * | 2019-12-25 | 2020-04-21 | 交通运输部公路科学研究所 | Method and device for measuring internal change by laser |
| CN114646281A (en) * | 2022-03-11 | 2022-06-21 | 北京海卓博尔科技有限公司 | Crystallizer vibration deflection detection device, detection method and detection system |
| CN114646281B (en) * | 2022-03-11 | 2024-03-12 | 北京海卓博尔科技有限公司 | Crystallizer vibration deflection detection device, detection method and detection system |
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Application publication date: 20120704 |