CN209783872U - Laser testing system and laser testing equipment - Google Patents
Laser testing system and laser testing equipment Download PDFInfo
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- CN209783872U CN209783872U CN201920408908.4U CN201920408908U CN209783872U CN 209783872 U CN209783872 U CN 209783872U CN 201920408908 U CN201920408908 U CN 201920408908U CN 209783872 U CN209783872 U CN 209783872U
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Abstract
the utility model discloses a laser instrument test system, include: a substrate; the laser head fixing assembly for detachably mounting a laser head is arranged on the substrate; the laser power detection assembly is used for detecting the power of the laser output by the laser head, the red light power detection assembly is used for detecting the power of the red light output by the laser head, and the light spot detection assembly is used for detecting the light spot of the laser output by the laser head. The utility model discloses a laser instrument test equipment. Through the embodiment, all instruments do not interfere with each other in the testing process, the integration of various testing instruments is realized, the structure is compact, the occupied area is small, the safety and the reliability are realized, and the operation process is simple.
Description
Technical Field
The utility model relates to a laser instrument technical field especially relates to a laser instrument test system and laser instrument test equipment.
Background
When the laser is used for testing power, pulse, spectrum, facula and the like, different testing instruments are usually required to be used for testing, in the past, testing personnel need to combine multiple testing instruments to perform complex operations to test one by one, and the laser is loose and complex in overall structure, complex in operation and low in efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve above-mentioned technical problem and provide a laser instrument test system and laser instrument test equipment, realized that multiple test instrument is integrated, compact structure, take up an area of for a short time, safe and reliable, operation process is simple.
In order to solve the above technical problem, the utility model provides a laser instrument test system, include: a substrate; the laser head fixing assembly for detachably mounting a laser head is arranged on the substrate; the laser power detection assembly is used for detecting the power of the laser output by the laser head, the red light power detection assembly is used for detecting the power of the red light output by the laser head, and the light spot detection assembly is used for detecting the light spot of the laser output by the laser head.
Furthermore, the laser power detection assembly, the red light power detection assembly and the light spot detection assembly are respectively arranged at different distances from a laser head mounted on the laser head fixing assembly; the laser power detection assembly is relatively fixedly arranged on the substrate and is concentric with the center of the laser head; the red light power detection component is arranged on a first translation mechanism arranged on the substrate, and the first translation mechanism is driven by a first driving mechanism to drive the red light power detection component to be adjustable to be concentric with the center of the laser head; the light spot detection assembly is arranged on a second translation mechanism arranged on the substrate, and the second translation mechanism is driven by a second driving mechanism to drive the light spot detection assembly to be adjustable to be concentric with the center of the laser head.
further, the first translation mechanism and the second translation mechanism are both composed of a guide rail mounted on the substrate and a slider mounted on the guide rail; the red light power detection assembly is arranged on the sliding block of the first translation mechanism, and the light spot detection assembly is arranged on the sliding block of the second translation mechanism; the first driving mechanism drives the sliding block of the first translation mechanism to slide on the corresponding guide rail, and the second driving mechanism drives the sliding block of the second translation mechanism to slide on the corresponding guide rail.
Furthermore, more than one limit block is arranged at corresponding positions on the substrate, when the slide block of the first translation mechanism provided with the red light power detection assembly is driven to abut against the corresponding limit block, the red light power detection assembly is concentric with the center of the laser head, and/or when the slide block of the second translation mechanism provided with the facula detection assembly is driven to abut against the corresponding limit block, the red light power detection assembly is concentric with the center of the laser head; springs are respectively arranged between the sliding block of the first translation mechanism and the corresponding limiting block and between the sliding block of the second translation mechanism and the corresponding limiting block so as to realize the quick reset of the sliding block; the first driving mechanism and the second driving mechanism adopt push-pull type quick clamps.
Furthermore, the first translation mechanism and the second translation mechanism are respectively composed of a support arranged on the base plate, a screw rod rotationally connected to the support and a ball screw mechanism sleeved on a slide block on the screw rod; the first driving mechanism adopts a servo motor which is relatively and fixedly connected with a screw rod in the first translation mechanism, and the second driving mechanism adopts a servo motor which is relatively and fixedly connected with a screw rod in the second translation mechanism.
Further, the laser power detection assembly comprises a first adjustable bracket mounted on the substrate and a laser power meter mounted on the first adjustable bracket, wherein the laser power meter can realize height and angle adjustment by means of the first adjustable bracket so as to be concentric with the center of the laser head; the red light power detection assembly comprises a second adjustable bracket arranged on the first translation mechanism and a red light probe arranged on the second adjustable bracket, and the red light probe can realize the adjustment of height and angle by virtue of the second adjustable bracket so as to be concentric with the center of the laser head; the light spot detection assembly comprises a third adjustable support and light spot paper, the third adjustable support is mounted on the second translation mechanism, the light spot paper is mounted on the third adjustable support, and the light spot paper can be adjusted in height and angle by means of the third adjustable support so as to be concentric with the center of the laser head; the laser power meter is provided with a water cooling mechanism for cooling.
furthermore, the laser power detection assembly, the red light power detection assembly and the light spot detection assembly are respectively arranged at the same distance from the laser head mounted on the laser head fixing assembly and on the same straight line perpendicular to the transmission direction of the laser output by the laser head; the laser power detection assembly, the red light power detection assembly and the light spot detection assembly are all arranged on a common third translation mechanism arranged on the substrate, and the third translation mechanism drives the laser power detection assembly, the red light power detection assembly and the light spot detection assembly to move in a direction perpendicular to the transmission direction of laser so as to be adjusted to be concentric with the center of the laser head at different moments; or, laser power detection subassembly red light power detection subassembly and facula detection subassembly sets up on the base plate apart from the different distance of laser head, and be on a parallel with the same straight line of the transmission direction of the laser of laser head output, through adjusting laser power detection subassembly red light power detection subassembly and facula detection subassembly's height makes the three can be adjusted to with at different moments at least the center of laser head is concentric.
furthermore, a pulse detection assembly arranged at a certain angle to the laser power detection assembly is arranged on the substrate, and the pulse detection assembly is used for detecting the pulse of the laser reflected by the laser power detection assembly; the substrate is also provided with a spectrum detection assembly which is arranged at a certain angle with the laser power detection assembly, and the spectrum detection assembly is used for detecting the spectrum of the laser reflected by the laser power detection assembly; the pulse detection assembly comprises a fourth adjustable support and a pulse probe, the fourth adjustable support is mounted on the substrate, the pulse probe is mounted on the fourth adjustable support, and the pulse probe can be adjusted in height and angle by means of the fourth adjustable support so as to be aligned with the laser power detection assembly in a corresponding angle and further receive laser reflected by the laser power detection assembly.
In order to solve the above technical problem, the present invention provides a laser testing apparatus, which includes a frame, a laser detecting device, and a laser testing system according to any one of the above embodiments; the laser testing system is arranged at the lower part of the rack, the upper part of the rack is provided with a cover plate, and the cover plate is parallel to a substrate in the laser testing system; the laser detection device comprises an electric cabinet, a three-axis motion platform which is arranged on the inner side of the cover plate and electrically connected with the electric cabinet, and a thermal imager which is arranged on the three-axis motion platform, electrically connected with the electric cabinet, can freely move in an xyz coordinate system and is used for generating thermal images.
Furthermore, the laser detection device also comprises an industrial camera which is arranged on the three-axis motion platform, is electrically connected with the electric cabinet, can freely move in an xyz coordinate system and is used for collecting images.
The utility model discloses a laser instrument test system and laser instrument test equipment has following beneficial effect:
The laser testing system reasonably arranges all testing instruments by utilizing the difference of respective testing functions and testing sequences, the instruments do not interfere with each other in the testing process, and the same laser beam can be utilized in pulse and spectrum tests, so that the integration of various testing instruments is realized, the structure is compact, the occupied area is small, the safety and the reliability are realized, and the operation process is simple;
In addition, a laser detection device is additionally arranged, a triaxial motion platform is used for driving an automatic focusing thermal imager to scan a detected object, and optical fiber light leakage points can be identified rapidly, safely and intelligently.
drawings
Fig. 1 is a schematic structural diagram of the laser testing apparatus according to a first state of the present invention.
Fig. 2 is a schematic structural diagram of the laser testing apparatus in another state.
Fig. 3 is a schematic structural view of the laser test apparatus shown in fig. 2 after the case is removed.
Fig. 4 is a schematic structural view of the laser test apparatus of fig. 2 with the case removed and a part of the chassis removed.
Fig. 5 is an enlarged schematic structural view of a laser inspection device in the laser test apparatus shown in fig. 4.
fig. 6 is a partial structural view of a substrate in the laser test apparatus shown in fig. 4.
Fig. 7 is a schematic structural diagram of an embodiment of the laser test system of the present invention.
Fig. 8 is a flow chart of a testing method of the laser testing system shown in fig. 7.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and embodiments.
The utility model provides a laser instrument test equipment. As shown in fig. 1 to 5, the laser test apparatus includes a laser detection device and a laser test system. The laser testing equipment is particularly suitable for performing systematic testing on the fiber laser.
the laser detection device is mainly used for detecting light leakage of laser optical fibers and detecting temperature, defects and the like of related optical devices. The laser testing system is mainly used for testing relevant parameters of light (such as laser light or red light described later) output by an output head of a laser.
the laser detection apparatus and the laser test system may typically share the same housing 121. The frame 121 is provided with a cover plate 122 at the upper portion thereof, and the base plate 1 is provided at the lower portion of the frame 121, the cover plate 122 and the base plate 1 being disposed generally parallel to each other.
The substrate 1 can be used for placing a laser to be detected. The laser detection device comprises an electric cabinet 20 ' and a three-axis motion platform 2 ', wherein the electric cabinet 20 ' can be arranged on the inner wall or the outer wall of a cover plate 122 or other positions, the three-axis motion platform 2 ' is arranged on the inner wall of the cover plate 122, a thermal imager 26 ' can be arranged on a motion mechanism of any one axis of the three-axis motion platform 2 ', and the electric cabinet 20 ' controls the three-axis motion platform 2 ' to drive the thermal imager 26 ' to freely move at any position in an xyz coordinate system so as to generate a thermal image by sensing the temperature of a laser arranged on a substrate 1.
Specifically, the three-axis motion platform 2 'includes an X-axis motion mechanism 21', a Y-axis motion mechanism 22 ', and a Z-axis motion mechanism 23', which can be assembled in any assembly relationship. As shown in fig. 5, the Y-axis moving mechanism 22 'may be disposed at the top, the X-axis moving mechanism 21' may be disposed at the middle, and the Z-axis moving mechanism 23 'may be disposed at the bottom, that is, the Y-axis moving mechanism 22' may be mounted inside the cover plate 122, the X-axis moving mechanism 21 'may be mounted on the Y-axis moving mechanism 22', the Z-axis moving mechanism 23 'may be mounted on the X-axis moving mechanism 21', and the thermal imaging camera 26 'may be mounted on the Z-axis moving mechanism 23'.
the structure and principle of each axis movement mechanism are substantially the same, and the Z axis movement mechanism 23' is described as follows. The Z-axis moving mechanism 23 'includes a mounting bracket 40', a ball screw mechanism and a servo motor 43 'disposed on the front surface of the mounting bracket 40', the ball screw mechanism includes a screw 41 'rotatably connected to the mounting bracket 40', and a slider 42 'sleeved on the screw 41', an output shaft of the servo motor 43 'is relatively fixedly connected to the screw 41' through, for example, a shaft coupling, and the servo motor 43 'is controlled to drive the screw 41' to rotate, so as to bring the slider 42 'to reciprocate linearly along the length direction of the screw 41'. With continued reference to fig. 5, the Y-axis moving mechanism 22 ' is mounted inside the cover plate 122 by the back of its own mounting bracket 40 ', the X-axis moving mechanism 21 ' is mounted on the slider 42 ' of the Y-axis moving mechanism 22 ' by the back of its own mounting bracket 40 ', the Z-axis moving mechanism 23 ' is mounted on the slider 42 ' of the X-axis moving mechanism 21 ' by the back of its own mounting bracket 40 ', and the thermal imaging camera 26 ' is mounted on the slider 42 ' of one of the Z-axis moving mechanisms 23 ' by a mounting plate.
Since the Y-axis moving mechanism 22 'is installed inside the cover plate 122, and the X-axis moving mechanism 21', the Z-axis moving mechanism 23 'and the thermal imaging system 26' are loaded thereon, in order to maintain the balance of the X-axis moving mechanism 21 ', at least one rail block 25' parallel to the Y-axis moving mechanism 22 'and having a rail 251' extending in the Y-axis direction may be further provided, the back surface of the rail block 25 'is also installed inside the cover plate 122, and the rail 251' in the rail block 25 'is slidably connected to the slider 401' fixedly installed on the back surface of the mounting bracket 40 'of the X-axis moving mechanism 21'.
Preferably, as shown in fig. 6, at least one limiting block 6 'may be disposed on the substrate 1, and the one or more limiting blocks 6' are disposed to form a right-angle structure, so as to quickly mount and position the laser to be detected or the laser experiment platform for mounting the laser to be detected.
The laser detection device further comprises a display screen 71 ', a touch screen 72 ' and a key board 73 ' which are arranged on the outer side of the cover plate 122, and the display screen 71 ', the touch screen 72 ' and the key board 73 ' are all electrically connected with the electric cabinet 20 '. The display screen 71 ' is used for viewing real-time parameters, the touch screen 72 ' is used for viewing program running conditions, and the key board 73 ' comprises a start switch for starting program running, a pause switch for pausing program running, a power switch for switching on and off power supply and an emergency stop switch for emergency power failure. Wherein, each switch can be designed into a button form.
the use flow of the laser detection device is briefly introduced as follows.
(1) Turning on a power switch, resetting the X-axis movement mechanism 21 ' and the Y-axis movement mechanism 22 ' and adjusting the Z-axis movement mechanism 23 ' to a proper position;
(2) Placing a laser on the substrate 1, limiting by using a limiting block 6', and switching on a power supply of the laser to start the laser;
(3) Turning on a starting switch, and moving the X-axis movement mechanism 21 'and the Y-axis movement mechanism 22' according to a preset program;
(4) After the program is run, resetting the X-axis movement mechanism 21 'and the Y-axis movement mechanism 22' to prepare for the next work;
(5) Disconnecting the power supply of the laser, and moving the laser to the next station or initial position;
(6) repeating the steps (1) to (5).
the thermal imager 26 'is controlled to scan each point, line and surface of the tested laser under the drive of the triaxial moving platform 2', the function of sensing the temperature (namely heat) and generating a thermal image by the thermal imager 26 'is utilized, the follow-up accurate determination of the optical fiber light leakage point is facilitated, and the thermal imager 26' is not required to be held by a person to scan, so that the harm of laser to a human body can be avoided.
preferably, the laser detection device further comprises an industrial camera 27 'which can be mounted on a motion mechanism of any axis of the three-axis motion platform 2' and is electrically connected with the electric cabinet 20 'and can freely move at any position in an xyz coordinate system for acquiring images, generally, the image brightness of the acquired images is different when the temperature is different, and the industrial camera 27' preferably adopts a CCD industrial camera. The industrial camera 27 ' may be mounted on the Z-axis moving mechanism 23 ' mounted with the thermal imaging camera 26 ', and specifically, the industrial camera 27 ' may be mounted on the slider 42 ' of the Z-axis moving mechanism 23 ' by a mounting plate which may be the same as or different from the thermal imaging camera 26 '.
Preferably, two Z-axis motion mechanisms, indicated by reference numerals 23 ', 24 ', are provided, both mounted on the X-axis motion mechanism 21 ', the thermal imaging camera 26 ' is mounted on one of the Z-axis motion mechanisms 23 ' by, for example, a mounting plate 51 ', and the industrial camera 27 ' is mounted on the other Z-axis motion mechanism 23 ' by, for example, another mounting plate 52 '.
the system is used in combination with the thermal imager 26 'and the industrial camera 27', can acquire data such as temperature and image brightness and provide the data to a background terminal and/or a user for analysis, judgment and storage, and has the advantages of safety, intelligence and high efficiency.
in another embodiment, the substrate 1 can also be used simultaneously for mounting a laser test system. In order to avoid the mutual interference between the laser testing system and the laser detecting device to improve the measuring accuracy, it is preferable to install a partition plate 3' between the base plate 1 and the cover plate 122 to separate and form two independent spaces, wherein the laser testing system is located in one space and the laser detecting device is located in the other space. In order to facilitate the connection of the cables between the laser devices mounted on the two sides of the substrate 1 and the laser device testing system, a threading window may be formed on the isolation plate 3'.
Preferably, in order to prevent the laser leakage from damaging the personal safety of the outside personnel during the laser test and the laser fiber leakage detection, a box 12 may be disposed to cover the entire rack 121 (including the laser test system and the laser detection device installed in the rack 121). The box body 12 may be composed of a plurality of sealing plates 123, and one or more of the sealing plates 123 may be designed to be openable and closable, and a key plate 124 is installed on the openable and closable sealing plate 123 for facilitating opening and closing.
Further, a device mounting plate 15 may be disposed on the substrate 1 and in the same space of the laser detection apparatus, and the device mounting plate 15 is used for mounting an optical device to be tested, such as a beam combiner, a grating, etc., and connecting the optical device to the optical path of the laser, so as to detect the problems of the optical device, such as temperature, defect, etc., by the laser detection apparatus.
Specifically, referring to fig. 7, the laser testing system includes a laser head fixing assembly 2 mounted on a substrate 1, a laser head 3 detachably mounted on the laser head fixing assembly 2, and the laser head 3 can be replaced as required by a detachable mounting method to complete testing of different laser heads 3.
This laser instrument test system is still including installing laser power determine module 4, ruddiness power determine module 5 and the facula determine module 6 on base plate 1, and this laser power determine module 4 is used for detecting the power of 3 output laser of laser head, and this ruddiness power determine module 5 is used for detecting the power of 3 output ruddiness of laser head, and this facula determine module 6 is used for detecting the facula of 3 output laser of laser head. Among the laser power detection assembly 4, the red light power detection assembly 5 and the light spot detection assembly 6, the three can be selectively adjusted to a position concentric with the center of the laser head 3 mounted on the laser head fixing assembly 2 to detect related items. For example, the laser power detection module 4 is adjusted to a position concentric with the center of the laser head 3 to detect the laser power, the red light power detection module 5 is adjusted to a position concentric with the center of the laser head 3 to detect the red light power, and the spot detection module 6 is adjusted to a position concentric with the center of the laser head 3 to detect the laser spot.
In one embodiment, the laser power detection assembly 4, the red power detection assembly 5 and the flare detection assembly 6 may be installed at different distances from the laser head 3, respectively. Specifically, laser power detection component 4 can be installed in the position farthest from laser head 3, light spot detection component 6 is installed in the position 3 times far away from laser head, and red light power detection component 5 is installed in the position nearest to laser head 3, of course, the sequence of the distance from laser head 3 to the three can be adjusted, and no specific limitation is made here.
Wherein, the initial positions of the laser power detection assembly 4, the red power detection assembly 5 and the light spot detection assembly 6 are not generally arranged on the same straight line. Preferably, only two of the test parts can be moved to perform multiple tests, wherein, because the laser power detection assembly 4 is larger in volume and weight than the red light power detection assembly 5 and the spot detection assembly 6, and because of the greatest frequency of use for reasons of importance, the laser power detection assembly 4 can be fixedly mounted directly on the substrate 1 and kept approximately concentric with the center of the laser head 3; and the initial positions of the red light power detection assembly 5 and the light spot detection assembly 6 are always set not concentric with the center of the laser head 3 but staggered. Accordingly, the red power detecting element 5 is adjusted to a position concentric with the center of the laser head 3 by the first translation mechanism 71 mounted on the substrate 1; the spot detection module 6 is adjustable to a position concentric with the center of the laser head 3 by another second translation mechanism 72 mounted on the substrate 1. The two translation mechanisms 71 and 72 may adopt the same structure to adjust the positions of the red light power detection assembly 5 and the light spot detection assembly 6, respectively, so that the laser power detection assembly 4, the red light power detection assembly 5 and the light spot detection assembly 6 can be adjusted to be concentric with the center of the laser head 3 at least at different times.
in an embodiment, the two translation mechanisms 71 and 72 may be implemented by a rail-slider mechanism, each of which includes a rail 701 fixed on the substrate 1 and a slider 702 mounted on the rail 701, each slider 702 is driven by a different driving mechanism 8 and 9 to linearly reciprocate on the rail 701, specifically, the first driving mechanism 8 drives the slider 702 of the first translation mechanism 71, and the second driving mechanism 9 drives the slider 702 of the second translation mechanism 72. The red light power detection assembly 5 and the light spot detection assembly 6 are respectively mounted on the corresponding sliding blocks 702 and then move along with the movement of the sliding blocks 702. For example, the driving mechanisms 8 and 9 may be replaced by a quick clamp, such as a push-pull quick clamp, which can be selected to adjust the position of the red light power detecting element 5 or the light spot detecting element 6. Preferably, in order to achieve the purpose of quickly achieving the concentric alignment between the red light power detection assembly 5 and the light spot detection assembly 6 and the center of the laser head 3, more than one limit block 703 may be disposed at corresponding positions on the substrate 1, usually, the limit blocks 703 are disposed in the moving direction of the sliding block 702, and when the corresponding sliding block 702 is driven to abut against the limit blocks 703, the corresponding red light power detection assembly 5 or the light spot detection assembly 6 is adjusted to be concentric with the center of the laser head 3.
Preferably, in order to enable the red light power detection assembly 5 and the light spot detection assembly 6 to return to the initial positions quickly, a spring 704 is arranged between the corresponding limit block and the sliding block 702, the spring 704 can be sleeved on the guide rail 701 between the limit block and the sliding block 702, and then the spring 704 is reset quickly by using the elastic force of the spring 704 so as not to affect subsequent related detection.
In another embodiment, as shown in fig. 4 in particular, the two translation mechanisms 71 and 72 can be realized by a ball screw mechanism, which includes a bracket fixed on the base plate, a screw rotatably connected to the bracket, and a slider sleeved on the screw. The driving mechanisms 8 and 9 can adopt servo motors, and output shafts of the servo motors are fixedly connected with the screw rods through a coupler and the like. The corresponding screw rod is driven to rotate by controlling the corresponding servo motor, and then the sliding block on the screw rod is driven to do linear reciprocating motion along the screw rod so as to realize the function of adjusting the position of the red light power detection assembly 5 or the light spot detection assembly 6. In the case of servo motors and ball screw mechanisms, each servo motor is typically connected to the electric cabinet 20 'as described above and operates under the control of the electric cabinet 20'.
With continued reference to fig. 7, the laser power detection assembly 4 includes a first adjustable bracket 41 mounted on the substrate 1 and a laser power meter 42 mounted on the first adjustable bracket 41. The laser power meter 42 can be adjusted in height and angle by means of the first adjustable support 41 to achieve concentricity with the center of the laser head 3. Preferably, since the laser power meter 42 directly detects the laser power and needs a long time for detection, the laser power meter 42 usually has a water cooling mechanism 422, specifically, the laser power meter 42 includes a laser receiving probe 421 and a water cooling mechanism 422 disposed on the back of the laser receiving probe 421 and abutting against the laser receiving probe 421, and the water cooling mechanism 422 is provided with a water inlet 4221 and a water outlet 4222 to form a water circulation with an external water cooling source.
The red light power detection assembly 5 includes a second adjustable bracket 51 mounted on the sliding block 702 in the corresponding translation mechanism 71, and a red light probe 52 mounted on the second adjustable bracket 51. The red light probe 52 can be adjusted in height and angle by means of the second adjustable support 51 to achieve concentricity with the center of the laser head 3.
The light spot detection assembly 6 includes a third adjustable support 61 mounted on the slide block 702 of the corresponding another translation mechanism 72, and a light spot paper 62 detachably (i.e. replaceably) mounted on the third adjustable support 61, and when the laser is incident on the light spot paper 62, the laser has a burning effect on the light spot paper 62 to form and record a light spot.
The pulse detection assembly 10 includes a fourth adjustable support 101 mounted on the substrate 1 and a pulse probe 102 mounted on the fourth adjustable support 101. The pulse probe 102 can be adjusted in height and angle by means of the fourth adjustable support 101 to achieve alignment at a corresponding angle with the laser power detection assembly 4 (specifically, with the laser power meter 42 thereof) and to receive the laser light reflected from the laser power detection assembly 4.
In another embodiment, the laser power detection assembly 4, the red light power detection assembly 5 and the spot detection assembly 6 can be respectively installed at the same distance from the laser head 3, and it can be understood that the perpendicular distances from the laser power detection assembly 4, the red light power detection assembly 5 and the spot detection assembly 6 to the straight line are equal based on the straight line of the laser head 3 perpendicular to the light direction of the output laser or red light. For example, the laser power detection element 4, the red power detection element 5, and the flare detection element 6 may be disposed on the same line perpendicular to the transmission direction of the laser light output from the laser head 3.
Specifically, the laser power detection assembly 4, the red power detection assembly 5 and the spot detection assembly 6 may be adjusted by a common translation mechanism (not shown) mounted on the substrate 1. The translation mechanism can drive the three parts to move in the direction perpendicular to the transmission direction of the laser. The translation mechanism can also comprise a guide rail arranged on the substrate 1 and a slide block arranged on the guide rail, the slide block is driven by a driving mechanism, and the laser power detection assembly 4, the red light power detection assembly 5 and the light spot detection assembly 6 are all arranged on the slide block. The slide block is driven by the driving mechanism to move for different distances, so that the laser power detection assembly 4, the red light power detection assembly 5 and the light spot detection assembly 6 can be adjusted to be concentric with the center of the laser head 3 at different moments.
In other embodiments, for example, the laser power detection assembly 4, the red light power detection assembly 5, and the light spot detection assembly 6 may be disposed on the same straight line on the substrate 1, which is at different distances from the laser head 3 and parallel to the transmission direction of the laser output by the laser head 3, and the heights of the three components are adjusted so that the laser power detection assembly 4, the red light power detection assembly 5, and the light spot detection assembly 6 can be adjusted to be concentric with the center of the laser head 3 at different times.
In one embodiment, a pulse detection assembly 10 may be disposed on the substrate 1 for detecting the pulses of the laser light output from the laser head 3. The pulse detection assembly 10 is disposed at an angle (e.g., 40-50 °, for example, 45 °) to the laser power detection assembly 4, so as to detect the laser light incident on and reflected from the laser power detection assembly 4. Such an indirect detection mode, that is, a mode of detecting the laser light reflected by the laser power detection assembly 4, can prevent the laser light from damaging the pulse detection assembly 10.
In another embodiment, a spectrum detection assembly 11 including a spectrum probe may be provided for detecting the spectrum of the laser light output from the laser head 3. The spectrum detection element 11 is also typically disposed at an angle (e.g., 40-50 °, for example 45 °) to the laser power detection element 4 to detect the laser light incident on and reflected from the laser power detection element 4. Also by means of indirect detection, damage to the spectral detection assembly 11 by the laser can be avoided.
The spectrum sensor 11 may be mounted on the substrate 1. The spectrum detecting unit 11 is mounted on a bracket 110 provided on the base plate 1, and the bracket 110 is located in the case 12. In other examples, the spectrum sensing assembly 11 may be disposed on the housing 121 or the case 12.
In one embodiment, the substrate 1 is an aluminum substrate, which is advantageous for preventing laser leakage and heat dissipation. The case 12 is an aluminum case, which is also convenient for preventing laser leakage and is also beneficial for heat dissipation.
The utility model also provides a laser instrument test method. Specifically, as shown in fig. 8, the laser testing method implements a laser testing function based on the laser testing system of the above embodiment. The test method comprises the following steps:
step S1, preparation work.
Specifically, in step S1, the laser head to be tested is mounted on the laser head fixing assembly in advance; a laser power meter of the debugged laser power detection assembly is concentric with the center of the laser head; a red light probe of the red light power detection assembly is well debugged to be concentric with the center of the laser head; the light spot paper of the debugged light spot detection assembly is concentric with the center of the laser head; the pulse detection assembly and the spectrum detection assembly are debugged and can receive laser reflected by the laser power detection assembly; the red light power detection assembly and the light spot detection assembly are kept away from the center of the laser head; and the laser head, the laser power detection component, the red light power detection component, the pulse detection component and the spectrum detection component are connected with related instruments.
And step S2, turning on a cooling water source and turning on a power switch.
and step S3, controlling the laser to turn off red light and turn on the laser, and detecting the power of the laser by using the laser power component.
In this step S3, the laser power detection assembly is generally aligned concentrically with the center of the laser head in advance.
Generally, in order to stably and accurately measure the power of the laser, the measurement time ranges from approximately 20mi n to 40mi n.
And step S4, controlling the laser to close the laser, moving the red light power detection component to be concentric with the center of the laser head, opening the red light, and detecting the power of the red light by using the red light power detection component.
Generally, in order to stably and accurately measure the power of red light, the measurement time range is approximately between 3s and 5 s.
And step S5, controlling the laser to close red light, moving the red light power detection assembly to avoid the center of the laser head, moving the light spot detection assembly to be concentric with the center of the laser head, opening the laser again, and detecting the light spot of the laser by using the light spot detection assembly.
Typically, the measurement time of the spot is approximately 1 s.
And step S6, moving the light spot detection assembly to avoid the center of the laser head, detecting the pulse of the laser by using the pulse detection assembly, and simultaneously detecting the spectrum of the laser by using the spectrum detection assembly.
Typically, the measurement of the pulse and spectrum of the laser is approximately 2mi n.
And step S7, controlling the laser to close the laser, closing the power supply and closing the cooling water source.
Each step may be performed a plurality of times depending on the actual situation.
The above sequence of measuring laser power → red light → spot → pulse + spectrum is the fastest design of the measured data, and is also the design conforming to the laser principle, because if the laser power obtained by the test is obviously not correct in step S3, the subsequent test is not necessary. Of course, the measurement is possible if the sequence is changed, but the measurement time is extended.
the utility model discloses a laser instrument test system and laser instrument test equipment has following beneficial effect:
the laser testing system reasonably arranges all testing instruments by utilizing the difference of respective testing functions and testing sequences, the instruments do not interfere with each other in the testing process, and the same laser beam can be utilized in pulse and spectrum tests, so that the integration of various testing instruments is realized, the structure is compact, the occupied area is small, the safety and the reliability are realized, and the operation process is simple;
in addition, a laser detection device is additionally arranged, a triaxial motion platform is used for driving an automatic focusing thermal imager to scan a detected object, and optical fiber light leakage points can be identified rapidly, safely and intelligently.
The above is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A laser testing system, comprising:
a substrate;
The laser head fixing assembly for detachably mounting a laser head is arranged on the substrate;
The laser power detection assembly is used for detecting the power of the laser output by the laser head, the red light power detection assembly is used for detecting the power of the red light output by the laser head, and the light spot detection assembly is used for detecting the light spot of the laser output by the laser head.
2. The laser testing system of claim 1, wherein:
The laser power detection assembly, the red light power detection assembly and the light spot detection assembly are respectively arranged at different distances from a laser head arranged on the laser head fixing assembly;
The laser power detection assembly is relatively fixedly arranged on the substrate and is concentric with the center of the laser head;
The red light power detection component is arranged on a first translation mechanism arranged on the substrate, and the first translation mechanism is driven by a first driving mechanism to drive the red light power detection component to be adjustable to be concentric with the center of the laser head;
the light spot detection assembly is arranged on a second translation mechanism arranged on the substrate, and the second translation mechanism is driven by a second driving mechanism to drive the light spot detection assembly to be adjustable to be concentric with the center of the laser head.
3. the laser test system of claim 2, wherein:
The first translation mechanism and the second translation mechanism are respectively composed of a guide rail arranged on the substrate and a sliding block arranged on the guide rail;
The red light power detection assembly is arranged on the sliding block of the first translation mechanism, and the light spot detection assembly is arranged on the sliding block of the second translation mechanism;
the first driving mechanism drives the sliding block of the first translation mechanism to slide on the corresponding guide rail, and the second driving mechanism drives the sliding block of the second translation mechanism to slide on the corresponding guide rail.
4. The laser test system of claim 3, wherein:
More than one limiting block is arranged at the corresponding position on the substrate, when the sliding block of the first translation mechanism provided with the red light power detection assembly is driven to abut against the corresponding limiting block, the red light power detection assembly is concentric with the center of the laser head, and/or when the sliding block of the second translation mechanism provided with the facula detection assembly is driven to abut against the corresponding limiting block, the red light power detection assembly is concentric with the center of the laser head;
springs are respectively arranged between the sliding block of the first translation mechanism and the corresponding limiting block and between the sliding block of the second translation mechanism and the corresponding limiting block so as to realize the quick reset of the sliding block;
the first driving mechanism and the second driving mechanism both adopt push-pull type quick clamps.
5. The laser test system of claim 2, wherein:
The first translation mechanism and the second translation mechanism are respectively composed of a support arranged on the base plate, a screw rod rotationally connected to the support and a ball screw mechanism of a sliding block sleeved on the screw rod;
The first driving mechanism adopts a servo motor which is relatively and fixedly connected with a screw rod in the first translation mechanism, and the second driving mechanism adopts a servo motor which is relatively and fixedly connected with a screw rod in the second translation mechanism.
6. The laser test system of claim 2, wherein:
the laser power detection assembly comprises a first adjustable support and a laser power meter, the first adjustable support is mounted on the base plate, the laser power meter is mounted on the first adjustable support, and the laser power meter can be used for achieving height and angle adjustment to be concentric with the center of the laser head;
The red light power detection assembly comprises a second adjustable bracket arranged on the first translation mechanism and a red light probe arranged on the second adjustable bracket, and the red light probe can realize the adjustment of height and angle by virtue of the second adjustable bracket so as to be concentric with the center of the laser head;
The light spot detection assembly comprises a third adjustable support and light spot paper, the third adjustable support is mounted on the second translation mechanism, the light spot paper is mounted on the third adjustable support, and the light spot paper can be adjusted in height and angle by means of the third adjustable support so as to be concentric with the center of the laser head;
the laser power meter is provided with a water cooling mechanism for cooling.
7. the laser testing system of claim 1, wherein:
the laser power detection assembly, the red light power detection assembly and the light spot detection assembly are respectively arranged at the same distance from a laser head arranged on the laser head fixing assembly and on the same straight line perpendicular to the transmission direction of the laser output by the laser head; the laser power detection assembly, the red light power detection assembly and the light spot detection assembly are all arranged on a common third translation mechanism arranged on the substrate, and the third translation mechanism drives the laser power detection assembly, the red light power detection assembly and the light spot detection assembly to move in a direction perpendicular to the transmission direction of laser so as to be adjusted to be concentric with the center of the laser head at different moments;
or, laser power detection subassembly red light power detection subassembly and facula detection subassembly sets up on the base plate apart from the different distance of laser head, and be on a parallel with the same straight line of the transmission direction of the laser of laser head output, through adjusting laser power detection subassembly red light power detection subassembly and facula detection subassembly's height makes the three can be adjusted to with at different moments at least the center of laser head is concentric.
8. the laser testing system of claim 1, wherein:
The substrate is provided with a pulse detection assembly which is arranged at a certain angle with the laser power detection assembly, and the pulse detection assembly is used for detecting the pulse of the laser reflected by the laser power detection assembly;
the substrate is also provided with a spectrum detection assembly which is arranged at a certain angle with the laser power detection assembly, and the spectrum detection assembly is used for detecting the spectrum of the laser reflected by the laser power detection assembly;
The pulse detection assembly comprises a fourth adjustable support and a pulse probe, the fourth adjustable support is mounted on the substrate, the pulse probe is mounted on the fourth adjustable support, and the pulse probe can be adjusted in height and angle by means of the fourth adjustable support so as to be aligned with the laser power detection assembly in a corresponding angle and further receive laser reflected by the laser power detection assembly.
9. A laser testing apparatus comprising a frame, a laser detection device and a laser testing system according to any one of claims 1 to 8;
The laser testing system is arranged at the lower part of the rack, the upper part of the rack is provided with a cover plate, and the cover plate is parallel to a substrate in the laser testing system;
The laser detection device comprises an electric cabinet, a three-axis motion platform which is arranged on the inner side of the cover plate and electrically connected with the electric cabinet, and a thermal imager which is arranged on the three-axis motion platform, electrically connected with the electric cabinet, can freely move in an xyz coordinate system and is used for generating thermal images.
10. the laser test apparatus of claim 9, wherein:
the laser detection device also comprises an industrial camera which is arranged on the three-axis motion platform, is electrically connected with the electric cabinet, can freely move in an xyz coordinate system and is used for collecting images.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920408908.4U CN209783872U (en) | 2019-03-28 | 2019-03-28 | Laser testing system and laser testing equipment |
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| CN201920408908.4U CN209783872U (en) | 2019-03-28 | 2019-03-28 | Laser testing system and laser testing equipment |
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| CN209783872U true CN209783872U (en) | 2019-12-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111427062A (en) * | 2020-04-23 | 2020-07-17 | 南京大学 | Hydraulic support alignment method based on laser radar |
| CN111796257A (en) * | 2020-07-28 | 2020-10-20 | 南京理工大学 | Full automatic checkout system of laser radar suitable for line is produced to intelligence |
| CN112254931A (en) * | 2020-09-30 | 2021-01-22 | 武汉衡易科技有限公司 | Automatic test equipment for laser |
| CN113567090A (en) * | 2021-09-23 | 2021-10-29 | 武汉锐科光纤激光技术股份有限公司 | Automatic testing device and method for high-power grating performance of optical fiber laser |
| CN113804418A (en) * | 2021-11-19 | 2021-12-17 | 武汉锐科光纤激光技术股份有限公司 | Laser position adjusting method and device |
| CN115406857A (en) * | 2022-09-07 | 2022-11-29 | 山东天厚石油科技有限责任公司 | Crude oil organic chloride detection device and method for petroleum production |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111427062A (en) * | 2020-04-23 | 2020-07-17 | 南京大学 | Hydraulic support alignment method based on laser radar |
| CN111427062B (en) * | 2020-04-23 | 2022-11-29 | 南京大学 | Hydraulic support alignment method based on laser radar |
| CN111796257A (en) * | 2020-07-28 | 2020-10-20 | 南京理工大学 | Full automatic checkout system of laser radar suitable for line is produced to intelligence |
| CN112254931A (en) * | 2020-09-30 | 2021-01-22 | 武汉衡易科技有限公司 | Automatic test equipment for laser |
| CN113567090A (en) * | 2021-09-23 | 2021-10-29 | 武汉锐科光纤激光技术股份有限公司 | Automatic testing device and method for high-power grating performance of optical fiber laser |
| CN113804418A (en) * | 2021-11-19 | 2021-12-17 | 武汉锐科光纤激光技术股份有限公司 | Laser position adjusting method and device |
| CN115406857A (en) * | 2022-09-07 | 2022-11-29 | 山东天厚石油科技有限责任公司 | Crude oil organic chloride detection device and method for petroleum production |
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