Laser energy measuring device

Abstract

The invention belongs to the technical field of laser measurement, and particularly relates to a laser energy measuring device, which comprises a base, a measurement feedback mechanism, a transposition transfer mechanism, a measurement result visual display mechanism, a laser intensity detection feedback mechanism, a transposition speed control mechanism, a rapid cooling mechanism and a PLC (Programmable Logic Controller). High-energy light beams of the laser device move on the heat absorber at a constant speed, the average laser power density irradiated to the surface of the heat absorber is greatly reduced, the laser damage resistance threshold value of the heat absorber is increased, the energy intensity of the high-energy light beams emitted by the laser device can be determined based on the temperature rise speed of the heat absorber, and the laser damage resistance is improved. According to the laser energy measuring device, the moving speed of the laser relative to the heat absorber is automatically regulated and controlled, the heat absorber can be quickly cooled after the laser energy is measured, the working power of the cooling mechanism can be automatically regulated and controlled based on the final temperature value of the heat absorber, and the cooling performance of the heat absorber is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of laser measurement, and in particular relates to a laser energy measuring device. Background Art

[0002] In the measurement of high-energy laser parameters, the total laser energy is the most basic and most important indicator parameter, which is often measured by the photothermal method, that is, the laser is incident on an absorber made of materials such as graphite. The absorber absorbs the energy of the incident laser and converts it into its own temperature rise. The total energy of the high-energy laser is calculated by measuring the temperature rise. For example, the patent with patent announcement number CN103148948A proposes a high-energy laser energy measurement device.

[0003] Currently, the position of the high-energy light beam acting on the absorber is fixed. During the measurement, only the local surface of the heat absorber is irradiated with strong light, which causes damage to the absorber. As a result, the average laser power density irradiated on the surface of the heat absorber is very high, and the absorber's anti-laser damage threshold is low, which will cause local overheating of the absorber, affecting its absorption performance and measurement accuracy. Summary of the invention

[0004] The object of the present invention is to provide a laser energy measuring device in view of the above problems.

[0005] To achieve the above object, the present invention adopts the following technical solution: a laser energy measuring device, including a base, and also including:

[0006] A measurement feedback mechanism is fixedly mounted on the upper end of the base;

[0007] A displacement transmission mechanism is installed on the measurement feedback mechanism;

[0008] A measurement result visual display mechanism, fixedly mounted on the upper end of the base and electrically connected to the measurement feedback mechanism;

[0009] A laser intensity detection feedback mechanism is installed in the measurement result visual display mechanism;

[0010] A transposition speed control mechanism, fixedly mounted on the upper end of the base and electrically connected to the laser intensity detection feedback mechanism, the transposition speed control mechanism is used to control the driving speed of the transposition transmission mechanism;

[0011] A rapid cooling mechanism is fixedly mounted on the rear side of the upper end of the base;

[0012] The PLC controller is fixedly mounted on the upper end of the base and is electrically connected to the measurement feedback mechanism, the displacement transmission mechanism, the measurement result visual display mechanism, the laser intensity detection feedback mechanism, the displacement speed control mechanism and the rapid cooling mechanism.

[0013] In the above-mentioned laser energy measurement device, the measurement feedback mechanism includes a plurality of first electric slide rails and second electric slide rails symmetrically fixedly installed on the upper end of the base, the upper ends of the sliders in the plurality of first electric slide rails are fixedly connected to the same measurement shell, the upper ends of the sliders in the plurality of second electric slide rails are fixedly connected to the same feedback shell, the upper end of the base is also fixedly installed with an absorption shell located between the measurement shell and the feedback shell, the displacement transmission mechanism is installed in the measurement shell, a laser is fixedly installed at the moving end of the displacement transmission mechanism, a heat absorber is fixedly installed in the absorption shell, and a plurality of armored thermal resistors are fixedly installed inside the feedback shell, and the armored thermal resistors are in contact with the rear side of the heat absorber.

[0014] In the above-mentioned laser energy measuring device, the displacement transmission mechanism includes a rotating shaft rotatably sleeved at the center of the side wall of the measuring shell, the outer wall of the measuring shell is fixedly mounted with a motor rotation assembly for driving the rotating shaft to rotate, one end of the rotating shaft located in the measuring shell is fixedly connected to a mounting plate, the side wall of the mounting plate is symmetrically fixedly connected to two side plates, a reciprocating screw is rotatably connected between the two side plates, the rod wall of the reciprocating screw is threadedly sleeved with a reciprocating seat, the laser is fixedly mounted on the side wall of the reciprocating seat, one end surface of the mounting plate is rotatably sleeved with a transmission shaft, one end of the transmission shaft and the reciprocating screw are transmission-connected via a bevel gear assembly, an annular inner gear ring sleeved outside the rotating shaft is fixedly mounted on the inner wall of the measuring shell, and an end of the transmission shaft away from the bevel gear assembly is fixedly connected with a transmission gear meshing with the annular inner gear ring.

[0015] In the above-mentioned laser energy measurement device, the measurement result intuitive display mechanism includes a display shell fixedly mounted on the upper end of the base, a plurality of friction rods arranged side by side are fixedly mounted on the inner wall of the display shell, a same movable plate is slidably sleeved on the outer side of the plurality of friction rods, a thrust permanent magnet plate is fixedly connected to the side wall of the movable plate, a thrust electromagnetic plate arranged opposite to the thrust permanent magnet plate is fixedly mounted on the inner wall of the display shell, a plurality of armored thermal resistors are connected in series to the power supply circuit of the thrust electromagnetic plate, an energy scale plate is fixedly mounted on the upper end of the display shell, a pointer is fixedly connected to the upper end of the movable plate, the upper end of the pointer passes through the upper end of the display shell through the strip opening opened at the upper end of the display shell, a regulating resistor rod arranged parallel to the friction rod is fixedly mounted on the inner wall of the display shell, a sleeve hole is opened on the side wall of the movable plate and sleeved on the outside of the regulating resistor rod, and a regulating conductive contact electrically contacting the regulating resistor rod is fixedly connected to the inner wall of the corresponding sleeve hole, and the regulating conductive contact and the regulating resistor rod are connected in series to the power supply circuit of the rapid cooling mechanism.

[0016] In the above-mentioned laser energy measurement device, the laser intensity detection feedback mechanism includes a generator fixedly installed at the lower end of the movable plate, a fixed rack is fixedly installed on the lower side of the inner wall of the display shell, and the input end of the generator is fixedly connected to a driving gear meshing with the fixed rack.

[0017] In the above-mentioned laser energy measurement device, the transposition speed control mechanism includes a control shell fixedly mounted on the upper end of the base, a plurality of resistance rods arranged side by side are fixedly connected inside the control shell, a same control board is slidably sleeved outside the plurality of resistance rods, a force-bearing permanent magnetic plate is fixedly connected to the side wall of the control board, a force-bearing electromagnetic plate arranged opposite to the force-bearing permanent magnetic plate is fixedly mounted on the inner wall of the control shell, the generator supplies power to the force-bearing electromagnetic plate, a control resistor rod arranged parallel to the resistance rod is fixedly mounted on the inner wall of the control shell, a control conductive contact electrically contacted with the control resistor rod is fixedly mounted on one side of the control board, and the control conductive contact and the control resistor rod are connected in series to the power supply circuit of the motor rotating assembly.

[0018] In the above-mentioned laser energy measurement device, the rapid cooling mechanism includes an L-shaped vertical plate fixedly mounted on the rear side of the upper end of the base, the side wall of the vertical portion of the L-shaped vertical plate is rotatably connected to an adjusting screw, the upper end of the L-shaped vertical plate is fixedly mounted with an adjusting motor for driving the adjusting screw to rotate, the rod wall of the adjusting screw is threadedly sleeved with a U-shaped lifting plate, the two ends of the U-shaped lifting plate are respectively fixedly connected with a hair dryer and an exhaust fan, a refrigeration frame is fixedly mounted on the outer wall of the hair dryer corresponding to the air inlet, a plurality of semiconductor refrigeration rods are fixedly mounted on the inner wall of the refrigeration frame, and the hot ends of the semiconductor refrigeration rods are arranged on the outside of the refrigeration frame.

[0019] In the above-mentioned laser energy measurement device, the measurement shell, the feedback shell and the absorption shell are all configured as hollow structures, and a heat insulation layer is filled in the corresponding hollow parts.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Through the measurement feedback mechanism and the displacement transmission mechanism, the high-energy beam emitted by the laser is incident on the heat absorber. The heat absorber absorbs the energy of the incident laser and converts it into its own temperature rise. The total energy of the high-energy laser is calculated by measuring the temperature rise. The high-energy beam of the laser moves at a uniform speed on the heat absorber to avoid the damage of the heat absorber caused by the local surface of the heat absorber being irradiated with strong light, which greatly reduces the average laser power density irradiated on the surface of the heat absorber, improves the anti-laser damage threshold of the heat absorber, and ensures the measurement accuracy.

[0022] 2. Through the set measurement result intuitive display mechanism, the test results of the total laser energy can be directly displayed based on the temperature rise change of the heat absorber. It does not need to rely on computers and other electronic equipment, and can directly provide test results. It is convenient and fast, and even personnel without professional computer knowledge and data analysis capabilities can easily understand the size of the total laser energy, which has better applicability.

[0023] 3. Through the laser intensity detection feedback mechanism and the transposition speed control mechanism, the energy intensity of the high-energy light beam emitted by the laser can be determined based on the temperature rise rate of the heat absorber, and then the movement speed of the laser relative to the heat absorber can be automatically adjusted to avoid the problem that the laser energy moves too fast, which will cause the heat absorber to be unable to fully absorb the laser energy, resulting in low measurement results, and the fast-moving laser will produce uneven energy distribution on the surface of the heat absorber, affecting the measurement accuracy.

[0024] 4. Rapid cooling mechanism and measurement result intuitive display mechanism can quickly dissipate heat and cool down the heat absorber after completing the measurement of laser energy, so as to avoid the problem that continuous high temperature will cause the performance of the heat absorber to change and affect the subsequent measurement work of the heat absorber. The heat absorber can be quickly cooled down and restored to a state, which is convenient for subsequent measurement work, and the residual temperature of the heat absorber can be avoided. The problem of affecting the accuracy of subsequent measurement results can be avoided. The working power of the cooling mechanism can be automatically adjusted based on the final temperature value of the heat absorber to ensure the cooling performance of the heat absorber. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view cross-sectional structural schematic diagram of the present invention;

[0026] Figure 2 It is a schematic cross-sectional structural diagram of the measurement feedback mechanism of the present invention;

[0027] Figure 3 It is a partial three-dimensional structural schematic diagram of the measurement feedback mechanism of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the displacement conveying mechanism of the present invention;

[0029] Figure 5 It is a schematic cross-sectional structure diagram of the measurement result intuitive display mechanism of the present invention;

[0030] Figure 6 It is a three-dimensional structural schematic diagram of the laser intensity detection feedback mechanism of the present invention;

[0031] Figure 7 It is a cross-sectional structural schematic diagram of the transposition speed control mechanism of the present invention;

[0032] Figure 8It is a structural schematic diagram of the rapid cooling mechanism of the present invention;

[0033] Fig. 9 It is a working state diagram of the rapid cooling mechanism of the present invention.

[0034] In the figure: 1 base, 2 measurement feedback mechanism, 21 first electric slide rail, 22 second electric slide rail, 23 measurement shell, 24 feedback shell, 25 absorption shell, 26 laser, 27 heat absorber, 28 armored thermal resistor, 29 insulation layer, 3 displacement transmission mechanism, 31 rotating shaft, 32 motor rotating assembly, 33 mounting plate, 34 side plate, 35 reciprocating screw rod, 36 reciprocating seat, 37 transmission shaft, 38 bevel gear assembly, 39 annular inner gear ring, 310 transmission gear, 4 measurement result intuitive display mechanism, 41 display shell, 42 friction rod, 43 moving plate, 44 thrust permanent magnet plate, 45 thrust electromagnetic plate, 4 6 energy scale plate, 47 pointer, 48 bar opening, 49 regulating resistor rod, 410 regulating conductive contact piece, 5 laser intensity detection feedback mechanism, 51 generator, 52 fixed rack, 53 driving gear, 6 transposition speed control mechanism, 61 control shell, 62 resistance rod, 63 control board, 64 force permanent magnet plate, 65 force electromagnetic plate, 66 control resistor rod, 67 control conductive contact piece, 7 rapid cooling mechanism, 71 L-shaped vertical plate, 72 adjusting screw, 73 adjusting motor, 74 U-shaped lifting plate, 75 hair dryer, 76 exhaust fan, 77 refrigeration frame, 78 semiconductor refrigeration rod, 8 PLC controller. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] like Figure 1-Figure 9 As shown, a laser energy measuring device includes a base 1 and further includes:

[0037] The measuring feedback mechanism 2 is fixedly mounted on the upper end of the base 1. The measuring feedback mechanism 2 includes a plurality of first electric slide rails 21 and a second electric slide rail 22 symmetrically fixedly mounted on the upper end of the base 1. The upper ends of the sliders in the plurality of first electric slide rails 21 are fixedly connected with the same measuring shell 23. The upper ends of the sliders in the plurality of second electric slide rails 22 are fixedly connected with the same feedback shell 24. An absorption shell 25 located between the measuring shell 23 and the feedback shell 24 is also fixedly mounted on the upper end of the base 1. The displacement transmission mechanism 3 is mounted in the measuring shell 23. A laser 26 is fixedly mounted on the moving end of the displacement transmission mechanism 3. A heat absorber 27 is fixedly mounted in the absorption shell 25. A plurality of armored thermal resistors 28 are fixedly mounted inside the feedback shell 24. The armored thermal resistors 28 are in contact with the rear side of the heat absorber 27. The measuring shell 23, the feedback shell 24 and the absorption shell 25 are all configured as hollow structures, and a heat insulating layer 29 is filled in the corresponding hollow portions.

[0038] The displacement transmission mechanism 3 is installed on the measurement feedback mechanism 2. The displacement transmission mechanism 3 includes a rotating shaft 31 rotatably sleeved at the center of the side wall of the measuring shell 23. The outer wall of the measuring shell 23 is fixedly provided with a motor rotating assembly 32 for driving the rotating shaft 31 to rotate. One end of the rotating shaft 31 located in the measuring shell 23 is fixedly connected with a mounting plate 33. The side wall of the mounting plate 33 is symmetrically fixedly connected with two side plates 34. A reciprocating screw rod 35 is rotatably connected between the two side plates 34. The reciprocating screw rod 35 A reciprocating seat 36 is threadedly sleeved on the rod wall, and the laser 26 is fixedly mounted on the side wall of the reciprocating seat 36. A transmission shaft 37 is rotatably sleeved on the surface of one end of the mounting plate 33. One end of the transmission shaft 37 is connected to the reciprocating screw rod 35 through a bevel gear assembly 38. An annular internal gear ring 39 sleeved on the outside of the rotating shaft 31 is fixedly mounted on the inner wall of the measuring housing 23, and one end of the transmission shaft 37 away from the bevel gear assembly 38 is fixedly connected to a transmission gear 310 meshing with the annular internal gear ring 39.

[0039] The measurement result intuitive display mechanism 4 is fixedly installed on the upper end of the base 1 and is electrically connected to the measurement feedback mechanism 2. The measurement result intuitive display mechanism 4 includes a display shell 41 fixedly installed on the upper end of the base 1. A plurality of friction rods 42 arranged side by side are fixedly installed on the inner wall of the display shell 41. The plurality of friction rods 42 are externally slidably sleeved with a same moving plate 43. The side wall of the moving plate 43 is fixedly connected with a thrust permanent magnet plate 44. A thrust electromagnetic plate 45 arranged opposite to the thrust permanent magnet plate 44 is fixedly installed on the inner wall of the display shell 41. A plurality of armored thermal resistors 28 are connected in series to the power supply circuit of the thrust electromagnetic plate 45. The display shell An energy scale plate 46 is fixedly installed on the upper end of 41, a pointer 47 is fixedly connected to the upper end of the movable plate 43, the upper end of the pointer 47 passes through the upper end of the display shell 41 through a strip opening 48 opened at the upper end of the display shell 41, and a regulating resistor rod 49 arranged parallel to the friction rod 42 is fixedly installed on the inner wall of the display shell 41, a sleeve hole is opened on the side wall of the movable plate 43 and sleeved outside the regulating resistor rod 49, and a regulating conductive contact 410 electrically contacting the regulating resistor rod 49 is fixedly connected to the inner wall of the corresponding sleeve hole, and the regulating conductive contact 410 and the regulating resistor rod 49 are connected in series to the power supply circuit of the rapid cooling mechanism 7.

[0040] The laser intensity detection feedback mechanism 5 is installed in the measurement result intuitive display mechanism 4. The laser intensity detection feedback mechanism 5 includes a generator 51 fixedly installed at the lower end of the movable plate 43. A fixed rack 52 is fixedly installed on the lower side of the inner wall of the display shell 41. The input end of the generator 51 is fixedly connected to a driving gear 53 meshing with the fixed rack 52.

[0041] The transposition speed control mechanism 6 is fixedly mounted on the upper end of the base 1 and electrically connected to the laser intensity detection feedback mechanism 5. The transposition speed control mechanism 6 is used to control the driving speed of the transposition transmission mechanism 3. The transposition speed control mechanism 6 includes a control shell 61 fixedly mounted on the upper end of the base 1. A plurality of resistance rods 62 arranged side by side are fixedly connected inside the control shell 61. The plurality of resistance rods 62 are externally slidably sleeved with the same control board 63. A force-bearing permanent magnet plate 64 is fixedly connected to the side wall of the control board 63. A force-applying electromagnetic plate 65 arranged opposite to the force-bearing permanent magnet plate 64 is fixedly mounted on the inner wall of the control shell 61. The generator 51 supplies power to the force-applying electromagnetic plate 65. A control resistor rod 66 arranged parallel to the resistance rod 62 is also fixedly mounted on the inner wall of the control shell 61. A control conductive contact 67 electrically contacting the control resistor rod 66 is fixedly mounted on one side of the control board 63. The control conductive contact 67 and the control resistor rod 66 are connected in series to the power supply circuit of the motor rotating component 32.

[0042] The rapid cooling mechanism 7 is fixedly mounted on the rear side of the upper end of the base 1. The rapid cooling mechanism 7 includes an L-shaped vertical plate 71 fixedly mounted on the rear side of the upper end of the base 1. The vertical side wall of the L-shaped vertical plate 71 is rotatably connected with an adjusting screw 72. An adjusting motor 73 for driving the adjusting screw 72 to rotate is fixedly mounted on the upper end of the L-shaped vertical plate 71. A U-shaped lifting plate 74 is threadedly sleeved on the rod wall of the adjusting screw 72. A hair dryer 75 and an exhaust fan 76 are fixedly connected at both ends of the U-shaped lifting plate 74 respectively. A refrigeration frame 77 is fixedly mounted on the outer wall of the hair dryer 75 corresponding to the air inlet. A plurality of semiconductor refrigeration rods 78 are fixedly mounted on the inner wall of the refrigeration frame 77. The hot ends of the semiconductor refrigeration rods 78 are arranged on the outside of the refrigeration frame 77.

[0043] The PLC controller 8 is fixedly mounted on the upper end of the base 1 and is electrically connected to the measurement feedback mechanism 2, the displacement transmission mechanism 3, the measurement result visual display mechanism 4, the laser intensity detection feedback mechanism 5, the displacement speed control mechanism 6 and the rapid cooling mechanism 7 respectively.

[0044] The operating principle of the present invention is described as follows: the PLC controller 8 controls the first electric slide rail 21 and the second electric slide rail 22 to move, so that the measuring shell 23 and the feedback shell 24 move toward the absorbing shell 25, until the measuring shell 23 and the feedback shell 24 are both sealed and attached to the side wall of the absorbing shell 25, the PLC controller 8 controls the laser 26 to start, and synchronously controls the motor rotating assembly 32 to move, the laser 26 emits a high-energy beam to act on the heat absorber 27, so that the heat absorber 27 converts the laser energy into its own temperature increase, the motor rotating assembly 32 drives the rotating shaft 31 to drive the mounting plate 33 to move, and then drives the laser 26 to move in the circumferential direction. During the movement of the mounting plate 33, the transmission gear 310 at one end of the transmission shaft 37 moves relative to the annular inner gear ring 39, and the transmission shaft 37 cooperates with the bevel gear assembly 38 to drive the reciprocating screw 35 to rotate through the meshing action of the annular inner gear ring 39 and the transmission gear 310, and then the laser 26 is driven to reciprocate along the mounting plate 33 through the threaded sleeve action of the reciprocating screw 35 and the reciprocating seat 36, further expanding the moving range of the laser 26, so that the high-energy light beam emitted by the laser 26 can fully act on the heat absorber 27, avoiding the problem that the heat absorber 27 is easily damaged due to the local surface of the heat absorber 27 being subjected to strong light irradiation;

[0045] The temperature rise generated by the heat absorber 27 acts on the armored thermal resistor 28 rod, and the armored thermal resistor 28 is a thermal resistor with a negative temperature coefficient. When the temperature of the heat absorber 27 is higher, the resistance of the armored thermal resistor 28 is smaller. The armored thermal resistor 28 is composed of a temperature sensing element (resistor), a lead wire, an insulating material, a stainless steel casing, etc. Compared with ordinary thermal resistors, it has smaller thermal inertia, smaller measurement lag, and a short thermal response time, and can respond quickly to temperature changes. Multiple armored thermal resistors 28 are connected in series to the power supply circuit of the thrust electromagnetic plate 45. When the thrust electromagnetic plate 45 is energized, it generates the same magnetism as the thrust permanent magnet plate 44, thereby driving the moving plate 43 to overcome the friction of the friction rod 42 and move, thereby making the pointer 47 relatively energy The measuring scale plate 46 moves. Specifically, the higher the laser energy, the higher the temperature of the heat absorber 27, and the smaller the resistance of the armored thermal resistor 28, the greater the power supply current of the thrust electromagnetic plate 45, and the stronger the magnetic force of the thrust electromagnetic plate 45, so that the moving plate 43 can slide along the friction rod 42 for a greater distance, so that the pointer 47 can indicate a position further back of the energy scale plate 46, and the total laser energy is visually marked (the next time the laser energy is measured, the PLC controller 8 controls the power supply device to supply a reverse current to the thrust electromagnetic plate 45, and the thrust electromagnetic plate 45 is energized to generate a magnetism opposite to that of the thrust permanent magnet plate 44, thereby generating a retraction force on the moving plate 43, so that the moving plate 43 is reset to the initial position);

[0046] After the laser energy measurement is completed, the PLC controller 8 controls the first electric slide rail 21 and the second electric slide rail 22 to move in the opposite direction, so that the measuring shell 23 and the feedback shell 24 move away from the absorption shell 25, and the PLC controller 8 controls the adjustment motor 73 to move, and the adjustment motor 73 drives the adjustment screw 72 to rotate, and the U-shaped lifting plate 74 drives the hair dryer 75 and the exhaust fan 76 to move down to the two sides of the absorption shell 25 through the threaded sleeve effect of the adjustment screw 72 and the U-shaped lifting plate 74, and the PLC controller 8 controls the hair dryer 75, the exhaust fan 76 and the semiconductor refrigeration rod 78 to work, and the hair dryer 75 and the exhaust fan 76 form a heat dissipation duct on both sides of the heat absorber 27 to quickly extract the heat accumulated on the heat absorber 27, and the setting of the semiconductor refrigeration rod 78 can form a cooling environment at the air inlet of the hair dryer 75, so that the air temperature circulating between the hair dryer 75 and the exhaust fan 76 is lower, and the heat on the heat absorber 27 is extracted more quickly;

[0047] The regulating conductive contact 410 and the regulating resistor rod 49 are connected in series to the power supply circuit of the hair dryer 75 and the exhaust fan 76. The hair dryer 75 and the exhaust fan 76 are DC motor devices. When the final temperature of the heat absorber 27 is higher, the moving distance of the movable plate 43 is greater. At this time, the relative sliding distance of the regulating conductive contact 410 on the regulating resistor rod 49 is also greater, so that the access resistance of the regulating resistor rod 49 is smaller, and then the larger the power supply current of the hair dryer 75 and the exhaust fan 76, the higher the working power of the hair dryer 75 and the exhaust fan 76, the faster the heat dissipation wind speed is formed for the heat absorber 27, and the cooling efficiency of the heat absorber 27 is further improved;

[0048] In the process of measuring laser energy, the resistance value of the armored thermal resistor 28 changes due to the change in the temperature of the heat absorber 27, and then cooperates with the thrust electromagnetic plate 45 and the thrust permanent magnet plate 44 to drive the movable plate 43 to slide. Specifically, the greater the intensity of the laser energy, the faster the temperature rise rate of the heat absorber 27, and then the power supply current of the thrust electromagnetic plate 45 increases faster, so that the moving plate 43 moves faster, and then the driving gear 53 moves faster relative to the fixed rack 52. The input end of the generator 51 is driven to rotate through the meshing action of the driving gear 53 and the fixed rack 52, so that the generator 51 generates more power. The generator 51 supplies a larger current to the force electromagnetic plate 65, and the force electromagnetic plate 65 is energized to generate The generated magnetic force is greater and the same as that of the force-bearing permanent magnet plate 64, thereby driving the control plate 63 to overcome the sliding resistance of the resistance rod 62 and move a greater distance, thereby driving the control conductive contact 67 to slide a greater distance on the control resistor rod 66, so that the access resistance of the control resistor rod 66 is smaller, and the control conductive contact 67 and the control resistor rod 66 are connected in series to the power supply circuit of the motor rotating component 32. The motor rotating component 32 is a DC motor device, thereby making the power supply current of the motor rotating component 32 larger, and thereby making the displacement movement speed of the laser 26 faster, avoiding the problem that excessive laser energy intensity will cause excessive accumulation of local energy in the heat absorber 27 at a relatively small transfer speed, thereby causing excessive damage to the heat absorber 27.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser energy measuring device, comprising a base (1), characterized in that: Also includes: A measurement feedback mechanism (2) is fixedly mounted on the upper end of the base (1); A displacement transmission mechanism (3) is mounted on the measurement feedback mechanism (2); A measurement result visual display mechanism (4) is fixedly mounted on the upper end of the base (1) and is electrically connected to the measurement feedback mechanism (2); A laser intensity detection feedback mechanism (5) is installed in the measurement result visual display mechanism (4); A transposition speed control mechanism (6) is fixedly mounted on the upper end of the base (1) and is electrically connected to the laser intensity detection feedback mechanism (5), wherein the transposition speed control mechanism (6) is used to control the driving speed of the transposition transmission mechanism (3); A rapid cooling mechanism (7) is fixedly mounted on the rear side of the upper end of the base (1); A PLC controller (8) is fixedly mounted on the upper end of the base (1) and is electrically connected to the measurement feedback mechanism (2), the displacement transmission mechanism (3), the measurement result visual display mechanism (4), the laser intensity detection feedback mechanism (5), the displacement speed control mechanism (6) and the rapid cooling mechanism (7).

2. A laser energy measurement device according to claim 1, characterized in that: The measurement feedback mechanism (2) comprises a plurality of first electric slide rails (21) and second electric slide rails (22) symmetrically fixedly mounted on the upper end of the base (1); the upper ends of the sliders in the plurality of first electric slide rails (21) are fixedly connected to the same measurement shell (23); the upper ends of the sliders in the plurality of second electric slide rails (22) are fixedly connected to the same feedback shell (24); an absorption shell (25) located between the measurement shell (23) and the feedback shell (24) is also fixedly mounted on the upper end of the base (1); the displacement transmission mechanism (3) is mounted in the measurement shell (23); a laser (26) is fixedly mounted on the movable end of the displacement transmission mechanism (3); a heat absorber (27) is fixedly mounted in the absorption shell (25); a plurality of armored thermal resistors (28) are fixedly mounted inside the feedback shell (24); the armored thermal resistors (28) are in contact with the rear side of the heat absorber (27).

3. A laser energy measuring device according to claim 2, characterized in that: The shifting and conveying mechanism (3) comprises a rotating shaft (31) rotatably sleeved at the center of the side wall of the measuring housing (23); a motor rotating assembly (32) for driving the rotating shaft (31) to rotate is fixedly mounted on the outer wall of the measuring housing (23); one end of the rotating shaft (31) located in the measuring housing (23) is fixedly connected to a mounting plate (33); two side plates (34) are symmetrically fixedly connected to the side wall of the mounting plate (33); a reciprocating screw rod (35) is rotatably connected between the two side plates (34); a reciprocating screw rod (35) is threadedly sleeved on the rod wall of the reciprocating screw rod (35); The reciprocating seat (36) is fixedly mounted on the side wall of the reciprocating seat (36); a transmission shaft (37) is rotatably sleeved on one end surface of the mounting plate (33); one end of the transmission shaft (37) is transmission-connected to the reciprocating screw rod (35) via a bevel gear assembly (38); an annular inner gear ring (39) sleeved on the outside of the rotating shaft (31) is fixedly mounted on the inner wall of the measuring housing (23); and one end of the transmission shaft (37) away from the bevel gear assembly (38) is fixedly connected to a transmission gear (310) meshingly connected to the annular inner gear ring (39).

4. A laser energy measuring device according to claim 3, characterized in that: The measurement result intuitive display mechanism (4) comprises a display shell (41) fixedly mounted on the upper end of the base (1); a plurality of friction rods (42) arranged side by side are fixedly mounted on the inner wall of the display shell (41); a same movable plate (43) is slidably sleeved on the outer side of the plurality of friction rods (42); a thrust permanent magnetic plate (44) is fixedly connected to the side wall of the movable plate (43); a thrust electromagnetic plate (45) arranged opposite to the thrust permanent magnetic plate (44) is fixedly mounted on the inner wall of the display shell (41); a plurality of armored thermal resistors (28) are connected in series to the power supply circuit of the thrust electromagnetic plate (45); an energy scale plate (46) is fixedly mounted on the upper end of the display shell (41); ), a pointer (47) is fixedly connected to the upper end of the movable plate (43), the upper end of the pointer (47) passes through the upper end of the display shell (41) through a strip-shaped opening (48) opened at the upper end of the display shell (41), the inner wall of the display shell (41) is also fixedly provided with a regulating resistor rod (49) arranged parallel to the friction rod (42), the side wall of the movable plate (43) is provided with a sleeve hole sleeved outside the regulating resistor rod (49), and a regulating conductive contact piece (410) electrically contacting the regulating resistor rod (49) is fixedly connected to the inner wall of the corresponding sleeve hole, and the regulating conductive contact piece (410) and the regulating resistor rod (49) are connected in series to the power supply circuit of the rapid cooling mechanism (7).

5. A laser energy measuring device according to claim 4, characterized in that: The laser intensity detection feedback mechanism (5) comprises a generator (51) fixedly mounted on the lower end of the movable plate (43); a fixed rack (52) is fixedly mounted on the lower side of the inner wall of the display housing (41); and an input end of the generator (51) is fixedly connected to a driving gear (53) meshing with the fixed rack (52).

6. A laser energy measuring device according to claim 5, characterized in that: The shifting speed control mechanism (6) comprises a control shell (61) fixedly mounted on the upper end of the base (1), a plurality of resistance rods (62) arranged in parallel are fixedly connected inside the control shell (61), a plurality of resistance rods (62) are slidably sleeved with a same control board (63) outside, a side wall of the control board (63) is fixedly connected with a force-bearing permanent magnetic plate (64), a force-applying electromagnetic plate (65) arranged opposite to the force-bearing permanent magnetic plate (64) is fixedly mounted on the inner wall of the control shell (61), the generator (51) supplies power to the force-applying electromagnetic plate (65), a control resistance rod (66) arranged parallel to the resistance rod (62) is also fixedly mounted on the inner wall of the control shell (61), a control conductive contact (67) in electrical contact with the control resistance rod (66) is fixedly mounted on one side of the control board (63), and the control conductive contact (67) and the control resistance rod (66) are connected in series to the power supply circuit of the motor rotating component (32).

7. The laser energy measuring device according to claim 1, characterized in that: The rapid cooling mechanism (7) comprises an L-shaped vertical plate (71) fixedly mounted on the rear side of the upper end of the base (1); the side wall of the vertical portion of the L-shaped vertical plate (71) is rotatably connected to an adjusting screw (72); an adjusting motor (73) for driving the adjusting screw (72) to rotate is fixedly mounted on the upper end of the L-shaped vertical plate (71); a U-shaped lifting plate (74) is threadedly sleeved on the rod wall of the adjusting screw (72); a blower (75) and an exhaust fan (76) are respectively fixedly connected at both ends of the U-shaped lifting plate (74); a refrigeration frame (77) is fixedly mounted on the outer wall of the blower (75) corresponding to the air inlet; a plurality of semiconductor refrigeration rods (78) are fixedly mounted on the inner wall of the refrigeration frame (77); and the hot ends of the semiconductor refrigeration rods (78) are arranged on the outer side of the refrigeration frame (77).

8. The laser energy measuring device according to claim 2, characterized in that: The measuring shell (23), the feedback shell (24) and the absorption shell (25) are all configured as hollow structures, and a heat insulation layer (29) is filled in the corresponding hollow parts.

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