CN111982001A - Deformation measurement system and method - Google Patents
Deformation measurement system and method Download PDFInfo
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- CN111982001A CN111982001A CN202010871011.2A CN202010871011A CN111982001A CN 111982001 A CN111982001 A CN 111982001A CN 202010871011 A CN202010871011 A CN 202010871011A CN 111982001 A CN111982001 A CN 111982001A
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- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
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Abstract
The invention relates to a deformation measurement system and a method, when a two-dimensional plane structure to be measured is an antenna array surface of a radar, a two-dimensional plane component is arranged relative to the antenna array surface of the radar, a plurality of laser displacement sensors collect measurement signals of different positions of the antenna array surface of the radar according to a preset frequency and send the measurement signals to a controller, the controller obtains deformation quantities of different positions of the antenna array surface of the radar at different moments according to the measurement signals of each laser displacement sensor, can accurately obtain the deformation quantities of different positions of the two-dimensional plane structure to be measured at different moments, namely can accurately obtain the real-time deformation quantity of the antenna array surface in the actual use process, can provide data support for an error compensation link in the data processing process according to the real-time deformation quantity, and further ensure the detection precision of the antenna array surface of the radar to a target.
Description
Technical Field
The invention relates to the technical field of structural deformation measurement, in particular to a deformation measurement system and method.
Background
With the continuous improvement of national defense and army modernization construction level, military equipment develops towards the direction of automation and intellectualization, and the use of electromechanical integration maneuvering equipment such as radar and communication equipment greatly improves the maneuvering operation capacity of troops. The performance of the radar as a device for remotely detecting a target has a great influence on the air defense, ship resistance, guidance resistance and other capabilities of the country.
The antenna array structure of the radar, such as the phased array radar antenna array structure, can generate random deformation to a certain extent under the influence of factors such as gravity, wind load, temperature and the like, and the structural deformation can generate great influence on the overall detection precision of the radar. With the improvement of the requirement on equipment performance, the antenna array structure of the radar develops towards large-scale and high-precision directions, particularly, the aperture of the antenna array of the phased array radar can reach the size of tens of meters, the area of the whole antenna array reaches hundreds of square meters, the number of the sub-processing units of the phased array is tens of thousands, and the antenna array installation foundation has extremely high array precision. When the antenna array surface generates interference due to factors such as self weight, wind load, temperature and the like in the installation and use processes, the antenna array surface generates a certain amount of deformation, so that a certain phase error is generated between the antenna array surfaces, the quality of transmitting and receiving signals of radio waves of the antenna array surface is directly influenced, and finally the overall detection precision of the antenna array surface to a target is reduced.
Disclosure of Invention
The invention provides a deformation measurement system and method aiming at the defects of the prior art.
The technical scheme of the deformation measuring system is as follows:
the device comprises a controller, a two-dimensional plane component and a plurality of laser displacement sensors, wherein the plurality of laser displacement sensors are arrayed on the two-dimensional plane component;
the laser displacement sensors are used for acquiring measurement signals of different positions of the two-dimensional planar structure to be detected according to a preset frequency and sending the measurement signals to the controller when the two-dimensional planar component is arranged relative to the two-dimensional planar structure to be detected;
and the controller is used for obtaining the deformation quantity of the two-dimensional planar structure to be detected at different positions at different moments according to the measurement signal of each laser displacement sensor.
The beneficial effects of the deformation measuring system of the invention are as follows:
when the two-dimensional plane structure to be detected is the antenna array surface of the radar, the two-dimensional plane part is arranged relative to the antenna array surface of the radar, the plurality of laser displacement sensors collect measurement signals of different positions of the antenna array surface of the radar according to the preset frequency and send the measurement signals to the controller, the controller obtains deformation quantities of different positions of the antenna array surface of the radar at different moments according to the measurement signals of each laser displacement sensor, the deformation quantities of different positions of the two-dimensional plane structure to be detected at different moments can be accurately obtained, namely the real-time deformation quantity of the antenna array surface in the actual use process can be accurately obtained, data support can be provided for an error compensation link in the data processing process according to the real-time deformation quantity, and the detection precision of the antenna array surface of the radar to the target is further ensured.
On the basis of the above scheme, the deformation measurement system of the invention can be further improved as follows.
Further, the controller includes a control chip and an a/D conversion module, and is specifically configured to:
performing A/D conversion on each measuring signal through the A/D conversion module to obtain digital quantity signals corresponding to each measuring signal one by one, and sending each digital quantity signal to the control chip;
and obtaining the deformation quantity of the two-dimensional planar structure to be detected at different positions at different moments according to each digital quantity signal through the control chip.
The beneficial effect of adopting the further scheme is that: because the measurement signals collected by the laser displacement sensor are analog quantity signals, the measurement signals which are the analog quantity signals can be converted into digital quantity signals in one-to-one correspondence through the A/D conversion module, and the control chip can conveniently process the digital quantity signals.
Further, the control chip is specifically configured to:
obtaining an initial value corresponding to each laser displacement sensor according to the digital quantity signal of each laser displacement sensor at the initial moment;
obtaining a real-time measurement value of each laser displacement sensor at each moment after the initial moment according to the digital quantity signal of each laser displacement sensor at each moment after the initial moment;
and obtaining the deformation quantity of different positions of the two-dimensional planar structure to be measured at different moments according to the initial value of each laser displacement sensor and the real-time measurement value of each laser displacement sensor at each moment after the initial moment.
Further, the controller further comprises an interface connected with the A/D conversion module, and the laser displacement sensor is specifically used for sending the acquired measurement signal to the A/D conversion module through the interface.
Further, the controller still includes the box, control chip with the AD conversion module all sets up in the box, the interface sets up on the table wall of box.
The beneficial effect of adopting the further scheme is that: the portability is improved.
Furthermore, the controller also comprises a power supply module which is connected with the control chip, the A/D conversion module and the interface and supplies power.
The support is connected with the two-dimensional plane component and used for supporting the two-dimensional plane component.
The beneficial effect of adopting the further scheme is that: the portability is improved, and the two-dimensional plane component is convenient to be arranged relative to the two-dimensional plane structure to be measured.
And the display is used for receiving and displaying the deformation quantity of the two-dimensional planar structure to be detected at different positions at different moments, which is sent by the controller.
The beneficial effect of adopting the further scheme is that: deformation quantities of different positions of the two-dimensional planar structure to be detected at different moments are displayed on the display, so that a user can conveniently and visually check the deformation quantities.
Further, the two-dimensional plane structure to be measured is an antenna array surface of the radar.
The technical scheme of the deformation measuring method is as follows:
a deformation measurement system using any of the above, comprising the steps of:
when the two-dimensional plane component is arranged relative to the two-dimensional plane structure to be measured, the plurality of laser displacement sensors respectively collect measurement signals of different positions of the two-dimensional plane structure to be measured according to a preset frequency and send the measurement signals to the controller;
and the controller obtains deformation quantities of different positions of the two-dimensional planar structure to be detected at different moments according to the measurement signals of each laser displacement sensor.
The deformation measuring method has the following beneficial effects:
when the two-dimensional plane structure to be detected is the antenna array surface of the radar, the two-dimensional plane part is arranged relative to the antenna array surface of the radar, the plurality of laser displacement sensors collect measurement signals of different positions of the antenna array surface of the radar according to the preset frequency and send the measurement signals to the controller, the controller obtains deformation quantities of different positions of the antenna array surface of the radar at different moments according to the measurement signals of each laser displacement sensor, the deformation quantities of different positions of the two-dimensional plane structure to be detected at different moments can be accurately obtained, namely the real-time deformation quantity of the antenna array surface in the actual use process can be accurately obtained, data support can be provided for an error compensation link in the data processing process according to the real-time deformation quantity, and the detection precision of the antenna array surface of the radar to the target is further ensured.
Drawings
Fig. 1 is a schematic structural diagram of a deformation measurement system according to an embodiment of the present invention;
FIG. 2 is a schematic view of a two-dimensional planar component as positioned relative to a two-dimensional planar structure to be measured;
FIG. 3 is a schematic diagram of a deformation measurement process of a deformation measurement system according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a controller;
FIG. 5 is a schematic flow chart of a deformation measurement method according to an embodiment of the present invention;
Detailed Description
As shown in fig. 1 and fig. 2, a deformation measurement system according to an embodiment of the present invention includes a controller 1, a two-dimensional planar member 2, and a plurality of laser displacement sensors 3, where the plurality of laser displacement sensors 3 are arranged in an array on the two-dimensional planar member 2;
the plurality of laser displacement sensors 3 are used for collecting measurement signals of different positions of the two-dimensional planar structure 4 to be detected according to a preset frequency and sending the measurement signals to the controller 1 when the two-dimensional planar component 2 is arranged relative to the two-dimensional planar structure 4 to be detected;
the controller 1 is configured to obtain deformation quantities of different positions of the two-dimensional planar structure 4 to be measured at different times according to the measurement signal of each laser displacement sensor.
When the two-dimensional planar structure 4 to be detected is an antenna array surface of a radar, the two-dimensional planar part 2 is arranged relative to the antenna array surface of the radar, the plurality of laser displacement sensors 3 collect measurement signals of different positions of the antenna array surface of the radar according to preset frequency and send the measurement signals to the controller 1, the controller 1 obtains deformation quantities of different positions of the antenna array surface of the radar at different moments according to the measurement signals of each laser displacement sensor, can accurately obtain the deformation quantities of different positions of the two-dimensional planar structure 4 to be detected at different moments, namely can accurately obtain real-time deformation quantities of the antenna array surface in the actual use process, can provide data support for an error compensation link in the data processing process according to the real-time deformation quantities, and further guarantee that the antenna array surface of the radar is accurately detected on a target;
wherein, the two-dimensional plane component 2 can be a steel plate, an aluminum alloy plate or a plastic plate, or a plurality of plates which are distributed at intervals and are positioned on the same plane, a plurality of laser displacement sensors 3 are distributed on the surface of the two-dimensional plane component 2 in an array way, for example, 16 laser displacement sensors 3 may be arrayed on the surface of the two-dimensional planar member 2 in a 4 x 4 manner, 30 laser displacement sensors 3 may be arrayed on the surface of the two-dimensional planar member 2 in a 5 x 6 manner, it can be understood that the array mode of the laser displacement sensors 3 can be adjusted according to actual situations, for example, the laser displacement sensors 3 which are densely distributed can be arranged to measure the measurement signals of the position where the two-dimensional planar structure 4 to be measured is easy to deform, the laser displacement sensors 3 distributed dispersedly can be arranged to measure the measuring signal of the position where the two-dimensional planar structure 4 to be measured is not easy to deform.
The two-dimensional planar structure 4 to be measured may also be a two-dimensional planar structural member such as a steel plate, an aluminum alloy plate, or the like, and at this time, deformation amounts of the structural member such as the steel plate, the aluminum alloy plate, or the like at different positions at different times may be obtained.
The preset frequency can be 10 times per second, 20 times per second, and the like, and can also be set according to actual conditions.
Preferably, in the above technical solution, the controller 1 includes a control chip 10 and an a/D conversion module 11, and the controller 1 is specifically configured to:
performing a/D conversion on each measurement signal through the a/D conversion module 11 to obtain a digital quantity signal corresponding to each measurement signal one to one, and sending each digital quantity signal to the control chip 10;
and obtaining the deformation quantity of the two-dimensional planar structure 4 to be measured at different positions at different moments according to each digital quantity signal through the control chip 10.
Because the measurement signals collected by the laser displacement sensor 3 are analog quantity signals, the measurement signals which are the analog quantity signals can be converted into digital quantity signals in one-to-one correspondence through the A/D conversion module 11, and the control chip 10 can conveniently process the digital quantity signals.
As shown in fig. 3, each laser displacement sensor 3 may directly send the acquired measurement signal to the a/D conversion module 11 through a signal transmission cable 7, or the controller 1 further includes an interface 12 connected to the a/D conversion module 11, the laser displacement sensor 3 is specifically configured to send the acquired measurement signal to the a/D conversion module 11 through the interface 12, and the interface 12 may be an aviation plug, a D-type interface 12, or the like; the aviation plug is taken as an example for explanation:
because the public head and the female head of aviation plug have a plurality of needles and holes respectively, and also have many wires in the signal transmission cable 7, consequently, can connect a plurality of laser displacement sensor 3 on the female head of aviation plug through signal transmission cable 7, A/D conversion module 11 also can connect on the public head of aviation plug through signal transmission cable 7, when the public head and the female head of aviation plug peg graft, can transmit the measuring signal that a plurality of laser displacement sensor 3 gathered to A/D conversion module 11 simultaneously, for example, every aviation plug can realize 8 way simultaneous transmission of measuring signal, when 20, during 30 or more laser displacement sensor 3, can correspond and set up a plurality of aviation plugs.
The A/D conversion module 11 can also select two eight-channel analog quantity input modules, each A/D conversion module 11 can simultaneously obtain 8 paths of 4-20mA measurement signals, and the sampling precision is 15-bit precision; the control chip 10 may employ a Siemens CPU 1510sp-1 module.
Preferably, in the above technical solution, the control chip 10 is specifically configured to:
obtaining an initial value corresponding to each laser displacement sensor 3 according to the digital quantity signal of each laser displacement sensor 3 at the initial moment;
obtaining a real-time measurement value of each laser displacement sensor 3 at each moment after the initial moment according to the digital quantity signal of each laser displacement sensor 3 at each moment after the initial moment;
and obtaining the deformation quantity of different positions of the two-dimensional planar structure 4 to be measured at different moments according to the initial value of each laser displacement sensor 3 and the real-time measurement value of each laser displacement sensor 3 at each moment after the initial moment.
The initial time is the time when the laser displacement sensor 3 starts to collect the measurement signal, and may be any time such as 12: 00: 00, etc., for convenience of calculation, an initial time is generally defined as 0, a next second of the initial time is defined as 1 st second, and so on, and details are given by taking any one laser displacement sensor 3 as an example, where the laser displacement sensor 3 is configured to acquire a measurement signal of a first position of the two-dimensional planar structure 4 to be measured, and a preset frequency is acquired once in one second, then:
at an initial moment, the measurement signal of the first position acquired by the laser displacement sensor 3 at the initial moment is sent to the a/D conversion module 11, the a/D conversion module 11 performs a/D conversion on the measurement signal at the initial moment to obtain a digital quantity signal corresponding to the measurement signal at the initial moment, and sends the digital quantity signal at the initial moment to the control chip 10, the control chip 10 obtains an initial value corresponding to the digital quantity signal at the initial moment according to the digital quantity signal at the initial moment, and the initial value can be understood as: the distance between the laser displacement sensor 3 and the first position at the initial moment;
at 1 second, the measuring signal of the first position that this laser displacement sensor 3 gathered when 1 second sends to A/D conversion module 11, A/D conversion module 11 carries out the A/D conversion with the measuring signal of 1 second, the measuring signal of 1 second corresponds a digital quantity signal to obtain, and send the digital quantity signal of 1 second to control chip 10, control chip 10 is according to the digital quantity signal of 1 second, obtain the real-time measurement value that the digital quantity signal of 1 second corresponds, this real-time measurement value can understand as: the distance between the laser displacement sensor 3 and the first position at the 1 st second;
according to the initial value of the laser displacement sensor 3 and the real-time measurement value of the laser displacement sensor 3 in the 1 st second, the deformation amount of the first position of the two-dimensional planar structure 4 to be measured in the 1 st second is obtained, specifically:
1) the difference between the real-time measurement value of the 1 st second and the initial value of the initial time may be used as the deformation amount, for example, the real-time measurement value of the 1 st second is 1.2 meters, the initial value of the initial time is 1 meter, and then the deformation amount of the first position at the first time is 0.2 meter;
2) the proportional relationship between the real-time measurement value at the 1 st second and the initial value at the initial time may be used as the deformation amount, for example, the real-time measurement value at the 1 st second is 1.2 meters, and the initial value at the initial time is 1 meter, so that the deformation amount of the first position at the first time is (1.2-1)/1 ═ 20%, which indicates that the deformation amount of the first position at the first time is 20%, that is, the deformation amount of the first position at the first time is 20%;
similarly, a 2 nd second real-time measurement value is obtained, the deformation quantity of the first position of the two-dimensional planar structure 4 to be measured in the 2 nd second is obtained according to the initial value of the laser displacement sensor 3 and the 2 nd second real-time measurement value of the laser displacement sensor 3, and by analogy, the deformation quantities of different positions of the two-dimensional planar structure 4 to be measured in different moments are obtained.
The a/D conversion module 11 is specifically an a/D conversion circuit or an a/D conversion electrical apparatus, and converts the measurement signal of the analog quantity signal into a one-to-one corresponding digital quantity signal, and the digital signal quantity can be understood as a current signal or a voltage signal, and a specific technical implementation process of processing the current signal or the voltage signal into an initial value at an initial time or a real-time measurement value at each time after the initial time is known to those skilled in the art, and is not described herein again. For example:
the conversion relationship between the measurement signal collected by the laser displacement sensor 3 and the distance between the laser displacement sensor 3 and the two-dimensional planar structure 4 to be measured can be found according to the specification parameters of the laser displacement sensor 3 as follows:
wherein u denotes said acquired measurement signal of the laser displacement sensor 3, [ x ]min,xmax]Indicating the range, x, of the distance that the laser displacement sensor 3 can measureminIndicates the minimum distance, x, that the laser displacement sensor 3 can measuremaxRepresents the maximum distance [ u ] that can be measured by the laser displacement sensor 3min,xmax]Indicating the measuring range, u, of the measuring signal collected and output by the laser displacement sensor 3minRepresents the minimum value, u, of the measurement signal collected and output by the laser displacement sensor 3maxThe maximum value of the measurement signal collected and output by the laser displacement sensor 3 is represented, and thus the current signal or the voltage signal can be processed into an initial value at the initial time or a real-time measurement value at each time after the initial time.
As shown in fig. 4, preferably, in the above technical solution, the controller 1 further includes a box 13, the control chip 10 and the a/D conversion module 11 are both disposed in the box 13, and the interface 12 is disposed on a surface wall of the box 13, so as to improve portability.
The box body 13 may be a cube, and the box body 13 may be formed by enclosing a plurality of plastic plates, aluminum alloy plates, and acrylic plates by a bonding fixing method and a thread fixing method, or the box body 13 may be formed by enclosing a plurality of steel plates and the like by a welding fixing method and a thread fixing method.
Preferably, in the above technical solution, the controller 1 further includes a power supply module 15, and the power supply module 15 is connected to the control chip 10, the a/D conversion module 11 and the interface 12 and supplies power.
A circuit board can be designed as the power supply module 15 according to the actually required power supply voltage and current of the a/D conversion module 11 and the interface 12, and the specific design process is known to those skilled in the art and is not described herein;
the power plug 14 may be further disposed on the surface wall of the box 13, for example, a three-hole connector of a computer power line, and after the power supply module 15 is connected to a mains supply or a power supply of 24V, 48V, and the like, the power supply module supplies power to the a/D conversion module 11, the control chip 10, and the interface 12, respectively, for example, a constant voltage of 24V is provided to the a/D conversion module 11, a constant voltage of 5V is provided to the control chip 10, and the like, it can be understood that the power supply module 15 may also supply power to each laser displacement sensor 3 through the connector and the signal transmission cable 7, or supply power to each laser displacement sensor 3 through other power supply methods, for example, through an Arduino board.
Preferably, in the above technical solution, the two-dimensional plane component further includes a support 20 connected to the two-dimensional plane component 2, and the support 20 is used for supporting the two-dimensional plane component 2. The portability is improved, and the two-dimensional plane component 2 is convenient to be arranged relative to the two-dimensional plane structure 4 to be measured.
The bracket 20 includes a base with a large weight to increase the stability of the two-dimensional planar component 2, two straight rods perpendicular to the base are arranged on the base at intervals, and the two-dimensional planar component 2 is fixed in a bonding fixing mode, a thread fixing mode or a welding machine mode.
Preferably, in the above technical solution, the apparatus further includes a display 5 connected to the controller 1, and the display 5 is configured to receive and display deformation quantities of different positions of the two-dimensional planar structure 4 to be measured at different times, which are sent by the controller 1. The deformation quantity of different positions of the two-dimensional planar structure 4 to be detected at different moments is displayed on the display 5, so that a user can conveniently and visually check the deformation quantity.
The display 5 is connected with the controller 1 through the data line 6, specifically, the display 5 is connected with the control chip 10 of the controller 1 through the data line 6, and the serial port data line 6 and the GPIB data line 6 can be specifically selected for the data line 6, that is, the control chip 10 displays deformation quantities of different positions of the two-dimensional planar structure 4 to be measured at different times through the RS232 serial port or the GPIB.
The deformation measuring system can rapidly and accurately measure large-scale two-dimensional plane deformation, and has the advantages of high measuring precision, high measuring speed, high modularization degree, convenience in use and the like; the control chip 10 can adopt a PLC component, so that the stability of the system and the use scene of maximum expansion can be guaranteed to the maximum extent, and the application range of the system is wide.
As shown in fig. 5, a deformation measurement method according to an embodiment of the present invention, which uses any one of the above deformation measurement systems, includes the following steps:
s1, when the two-dimensional plane component 2 is arranged relative to the two-dimensional plane structure 4 to be measured, the multiple laser displacement sensors 3 collect measurement signals of different positions of the two-dimensional plane structure 4 to be measured according to a preset frequency and send the measurement signals to the controller 1;
and S2, the controller 1 obtains deformation quantities of the two-dimensional planar structure 4 to be measured at different positions at different moments according to the measurement signals of each laser displacement sensor.
When the two-dimensional planar structure 4 to be detected is the antenna array surface of the radar, the two-dimensional planar part 2 is arranged relative to the antenna array surface of the radar, the plurality of laser displacement sensors 3 collect measurement signals of different positions of the antenna array surface of the radar according to the preset frequency and send the measurement signals to the controller 1, the controller 1 obtains deformation quantities of different positions of the antenna array surface of the radar at different moments according to the measurement signals of each laser displacement sensor, can accurately obtain the deformation quantities of different positions of the two-dimensional planar structure 4 to be detected at different moments, namely can accurately obtain the real-time deformation quantity of the antenna array surface in the actual use process, can provide data support for an error compensation link in the data processing process according to the real-time deformation quantity, and further guarantee the detection precision of the antenna array surface of the radar to a target.
Preferably, in the above technical solution, the controller 1 includes a control chip 10 and an a/D conversion module 11, and S2 includes:
s20, performing a/D conversion on each measurement signal through the a/D conversion module 11 to obtain a digital quantity signal corresponding to each measurement signal, and sending each digital quantity signal to the control chip 10;
and S21, obtaining deformation quantities of the two-dimensional planar structure 4 to be measured at different positions at different moments according to each digital quantity signal through the control chip 10.
Preferably, in the above technical solution, S21 includes:
s210, obtaining an initial value corresponding to each laser displacement sensor 3 according to the digital quantity signal of each laser displacement sensor 3 at the initial moment;
s211, obtaining a real-time measurement value of each laser displacement sensor 3 at each moment after the initial moment according to the digital quantity signal of each laser displacement sensor 3 at each moment after the initial moment;
and S212, obtaining deformation quantities of different positions of the two-dimensional planar structure 4 to be measured at different moments according to the initial value of each laser displacement sensor 3 and the real-time measurement value of each laser displacement sensor 3 at each moment after the initial moment.
Preferably, in the above technical solution, the method further includes a display 5 connected to the controller 1, and the method further includes:
and the display 5 receives and displays the deformation quantity of the two-dimensional planar structure 4 to be detected at different positions and different moments, which are sent by the controller 1.
In the present invention, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. The deformation measurement system is characterized by comprising a controller (1), a two-dimensional plane component (2) and a plurality of laser displacement sensors (3), wherein the laser displacement sensors (3) are arrayed on the two-dimensional plane component (2);
the laser displacement sensors (3) are used for collecting measurement signals of different positions of the two-dimensional planar structure (4) to be detected according to a preset frequency and sending the measurement signals to the controller (1) when the two-dimensional planar component (2) is arranged relative to the two-dimensional planar structure (4) to be detected;
the controller (1) is used for obtaining deformation quantities of different positions of the two-dimensional planar structure (4) to be detected at different moments according to the measurement signals of each laser displacement sensor.
2. Deformation measurement system according to claim 1, characterized in that the controller (1) comprises a control chip (10) and an a/D conversion module (11), the controller (1) being specifically configured to:
A/D conversion is carried out on each measuring signal through the A/D conversion module (11), digital quantity signals corresponding to each measuring signal one to one are obtained, and each digital quantity signal is sent to the control chip (10);
and obtaining the deformation quantity of the two-dimensional planar structure (4) to be detected at different times at different positions according to each digital quantity signal through the control chip (10).
3. Deformation measurement system according to claim 2, characterized in that the control chip (10) is specifically configured to:
obtaining an initial value corresponding to each laser displacement sensor (3) according to the digital quantity signal of each laser displacement sensor (3) at the initial moment;
obtaining a real-time measurement value of each laser displacement sensor (3) at each moment after the initial moment according to the digital quantity signal of each laser displacement sensor (3) at each moment after the initial moment;
and obtaining the deformation quantity of different positions of the two-dimensional plane structure (4) to be measured at different moments according to the initial value of each laser displacement sensor (3) and the real-time measurement value of each laser displacement sensor (3) at each moment after the initial moment.
4. A deformation measurement system according to claim 3, characterized in that the controller (1) further comprises an interface (12) connected to the a/D conversion module (11), and the laser displacement sensor (3) is specifically configured to send the acquired measurement signal to the a/D conversion module (11) through the interface (12).
5. A deformation measurement system according to claim 4, characterized in that the controller (1) further comprises a box (13), the control chip (10) and the A/D conversion module (11) are both disposed in the box (13), and the interface (12) is disposed on a surface wall of the box (13).
6. Deformation measurement system according to claim 5, characterized in that the controller (1) further comprises a power supply module (15), and the power supply module (15) is connected to and supplies power to the control chip (10), the A/D conversion module (11) and the interface (12).
7. A deformation measuring system according to any one of claims 1 to 5, further comprising a support (20) connected to the two-dimensional planar member (2), the support (20) being adapted to support the two-dimensional planar member (2).
8. A deformation measurement system according to any one of claims 1 to 5, further comprising a display (5) connected to the controller (1), wherein the display (5) is configured to receive and display deformation quantities of different positions of the two-dimensional planar structure (4) to be measured at different times sent by the controller (1).
9. A deformation measuring system according to any one of claims 1 to 5, characterized in that the two-dimensional planar structure (4) to be measured is the antenna array of a radar.
10. A deformation measurement method using the deformation measurement system according to any one of claims 1 to 9, comprising:
when the two-dimensional plane component (2) is arranged relative to the two-dimensional plane structure (4) to be measured, the plurality of laser displacement sensors (3) collect measurement signals of different positions of the two-dimensional plane structure (4) to be measured according to a preset frequency and send the measurement signals to the controller (1);
and the controller (1) obtains deformation quantities of different positions of the two-dimensional planar structure (4) to be detected at different moments according to the measurement signals of each laser displacement sensor.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635957A (en) * | 2020-12-29 | 2021-04-09 | 南京恒盾科技有限公司 | Phased array antenna frame device |
| CN113188460A (en) * | 2021-06-30 | 2021-07-30 | 浙江永诚建设工程管理有限公司 | Real-time monitoring system for building deformation |
| CN113948846A (en) * | 2021-10-12 | 2022-01-18 | 北京微纳星空科技有限公司 | Satellite-borne phased array antenna temperature deformation calibration system, measurement system and method |
| CN113959351A (en) * | 2021-09-07 | 2022-01-21 | 北京建筑大学 | Omnibearing dynamic deformation test monitoring device |
| CN114384536A (en) * | 2022-01-24 | 2022-04-22 | 国家高速列车青岛技术创新中心 | Digital real-time welding angular deformation measuring instrument based on laser displacement sensor and operation method thereof |
| CN114543668A (en) * | 2022-01-24 | 2022-05-27 | 上海卫星工程研究所 | Measuring system and method suitable for ultra-large array plane orientation change |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03252513A (en) * | 1990-03-02 | 1991-11-11 | Nec Corp | Parabolic antenna surface measuring instrument |
| CN105043284A (en) * | 2015-08-06 | 2015-11-11 | 中国电子科技集团公司第三十八研究所 | System and method for large-scale radar antenna deformation real time measurement |
| CN105526879A (en) * | 2015-11-30 | 2016-04-27 | 上海卫星工程研究所 | In-orbit measuring system and method for deformation of satellite large-array-plane antenna based on fiber grating |
| CN105783794A (en) * | 2016-03-22 | 2016-07-20 | 阳谷祥光铜业有限公司 | Plane detection method and device |
| CN106017317A (en) * | 2016-05-13 | 2016-10-12 | 中国航空工业集团公司西安飞机设计研究所 | Airborne antenna installation precision detection method and airborne antenna installation precision detection device |
| CN107941161A (en) * | 2017-11-27 | 2018-04-20 | 上海卫星装备研究所 | A kind of antenna plane thermal deformation non-contact measurement system under hot vacuum environment |
| CN109443224A (en) * | 2018-10-30 | 2019-03-08 | 哈尔滨工业大学 | A kind of antenna arrays of radar deformation measuring system and method |
| CN110596658A (en) * | 2019-09-11 | 2019-12-20 | 安徽信息工程学院 | Correction terminal for automatically measuring position of whip-shaped linear antenna array |
-
2020
- 2020-08-26 CN CN202010871011.2A patent/CN111982001A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03252513A (en) * | 1990-03-02 | 1991-11-11 | Nec Corp | Parabolic antenna surface measuring instrument |
| CN105043284A (en) * | 2015-08-06 | 2015-11-11 | 中国电子科技集团公司第三十八研究所 | System and method for large-scale radar antenna deformation real time measurement |
| CN105526879A (en) * | 2015-11-30 | 2016-04-27 | 上海卫星工程研究所 | In-orbit measuring system and method for deformation of satellite large-array-plane antenna based on fiber grating |
| CN105783794A (en) * | 2016-03-22 | 2016-07-20 | 阳谷祥光铜业有限公司 | Plane detection method and device |
| CN106017317A (en) * | 2016-05-13 | 2016-10-12 | 中国航空工业集团公司西安飞机设计研究所 | Airborne antenna installation precision detection method and airborne antenna installation precision detection device |
| CN107941161A (en) * | 2017-11-27 | 2018-04-20 | 上海卫星装备研究所 | A kind of antenna plane thermal deformation non-contact measurement system under hot vacuum environment |
| CN109443224A (en) * | 2018-10-30 | 2019-03-08 | 哈尔滨工业大学 | A kind of antenna arrays of radar deformation measuring system and method |
| CN110596658A (en) * | 2019-09-11 | 2019-12-20 | 安徽信息工程学院 | Correction terminal for automatically measuring position of whip-shaped linear antenna array |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635957A (en) * | 2020-12-29 | 2021-04-09 | 南京恒盾科技有限公司 | Phased array antenna frame device |
| CN113188460A (en) * | 2021-06-30 | 2021-07-30 | 浙江永诚建设工程管理有限公司 | Real-time monitoring system for building deformation |
| CN113188460B (en) * | 2021-06-30 | 2022-12-02 | 浙江永诚建设工程管理有限公司 | Real-time monitoring system for building deformation |
| CN113959351A (en) * | 2021-09-07 | 2022-01-21 | 北京建筑大学 | Omnibearing dynamic deformation test monitoring device |
| CN113959351B (en) * | 2021-09-07 | 2023-08-11 | 北京建筑大学 | Omnibearing dynamic deformation test monitoring device |
| CN113948846A (en) * | 2021-10-12 | 2022-01-18 | 北京微纳星空科技有限公司 | Satellite-borne phased array antenna temperature deformation calibration system, measurement system and method |
| CN114384536A (en) * | 2022-01-24 | 2022-04-22 | 国家高速列车青岛技术创新中心 | Digital real-time welding angular deformation measuring instrument based on laser displacement sensor and operation method thereof |
| CN114543668A (en) * | 2022-01-24 | 2022-05-27 | 上海卫星工程研究所 | Measuring system and method suitable for ultra-large array plane orientation change |
| CN114543668B (en) * | 2022-01-24 | 2023-11-10 | 上海卫星工程研究所 | Measuring system and method suitable for ultra-large array plane pointing change |
| CN114384536B (en) * | 2022-01-24 | 2024-05-31 | 国家高速列车青岛技术创新中心 | Digital real-time welding angle deformation measuring instrument based on laser displacement sensor and operation method thereof |
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