A micro-area mechanoluminescence measurement system

Abstract

The present invention provides a micro-area mechanoluminescence measurement system, comprising a mechanoluminescence module, a light source, a first electric reflector, a second electric reflector, a camera and a spectrometer, which can detect the mechanoluminescence performance of luminescent materials after being activated by an external light source. The fluorescence emitted by the luminescent material under pressure from the mechanoluminescence module first enters the camera for imaging of the luminescent area, and the actual mechanoluminescence area is calculated by an external program, and the pressure on the luminescent material is calculated together with the pressure measured by the pressure sensor; then, by switching the angle of the electric reflector, the fluorescence emitted by the luminescent material under pressure from the mechanoluminescence module is reflected by the electric reflector and enters the spectrometer to obtain spectral data, and the mechanoluminescence characteristics of the luminescent material under various pressures are obtained through analysis and processing. The micro-area mechanoluminescence measurement system can accurately image the mechanoluminescence area of ​​the luminescent material, and realize high-precision mechanoluminescence performance detection of the luminescent material.

Description

Technical Field

[0001] The invention belongs to the field of detection technology, and in particular relates to a micro-area mechanoluminescence measurement system. Background Art

[0002] Mechanoluminescence refers to the luminescence phenomenon produced by materials under mechanical action such as friction, pressure, impact, crushing and ultrasound. Materials with mechanoluminescence properties have attracted widespread attention due to their application prospects in new light sources, displays and pressure sensors. The characterization methods of mechanoluminescence are not yet unified, and most of them are homemade by their own laboratories. Mechanoluminescence analysis equipment mainly includes two parts: mechanical force generation part and mechanoluminescence optical signal collection and detection. Traditionally, manual detection is mainly used to detect the mechanoluminescence performance of luminescent materials, but manual detection has random impact frequency and low lighting efficiency, so the test results have many disadvantages such as inaccuracy and poor reliability. The mechanoluminescence performance detection device for luminescent materials that integrates mechanical force excitation and optical detection proposed in publication number CN108398420A has a complex structure and is inconvenient to operate; a mechanoluminescence measuring instrument proposed in publication number CN210221823U has a simple structure and is easy to operate, but the design of using the end of the optical fiber to directly impact the mechanoluminescent material to make it emit light limits the pressure scale that can be detected by the luminescent material to the gigapascal (GPa) level. In addition, the existing mechanoluminescence measuring devices all measure the impact force on the luminescent material through a pressure sensor, and calculate the mechanoluminescence pressure of the luminescent material together with the area of ​​the luminescent material, analyze the relationship between pressure and the luminescent characteristics of the luminescent material, and obtain the mechanoluminescence performance of the luminescent material. However, the area of ​​the luminescent material is usually large, and only the impacted area produces luminescence, not the entire area of ​​the luminescent material. The mechanoluminescence performance of the luminescent material obtained in this way has a large error, which is extremely unfavorable for the study of the mechanoluminescence mechanism of the luminescent material. In order to solve the above problems, a micro-area mechanoluminescence measuring device is provided, which can accurately image and calculate the area of ​​the mechanoluminescence area of ​​the luminescent material, obtain the precise pressure change of the micro-area mechanoluminescence of the luminescent material, and can realize the pressure scale detection of the gigapascal (GPa) level, which meets the exploration of higher mechanoluminescence performance of more luminescent materials, and is of great significance to the study of the mechanoluminescence mechanism of luminescent materials. Summary of the invention

[0003] In view of the above-mentioned problems existing in the prior art, the present invention provides a micro-area mechanoluminescence measurement system, which can accurately image the mechanoluminescence area of ​​the luminescent material, obtain the precise pressure of the micro-area mechanoluminescence of the luminescent material, and can reach a pressure scale of gigapascals (GPa), thereby realizing high-precision mechanoluminescence performance detection of the luminescent material.

[0004] The present invention provides a micro-region mechanoluminescence measurement system, such as Figure 1As shown, it is mainly composed of a mechanoluminescent module, a light source, a first electric reflector, a second electric reflector, a camera and a spectrometer.

[0005] like Figure 2 As shown, the force-induced luminescent module includes a housing, a thrust motor, a motor telescopic shaft, a coupling, a pressure sensor, a moving sleeve, a moving pressure rod, a spring, a pressure plate, a first anvil, a second anvil, and a sample stage. The thrust motor is fixedly mounted on the upper end of the housing, and the thrust motor is used to drive the motor telescopic shaft mounted thereon to perform telescopic movement. The motor telescopic shaft is connected to one end of the pressure sensor through the coupling, and the other end of the pressure sensor is connected to the moving sleeve. The moving pressure rod is sleeved with the spring and suspended on the moving sleeve. The pressure plate is fixed to the other end of the moving pressure rod except for the end suspended on the moving sleeve, and the first anvil is embedded on the pressure plate. The sample stage is connected to the housing, and a sample slot is provided on the sample stage, in which the second anvil is installed.

[0006] like Figure 1 As shown, the light source and the mechanoluminescent module are placed at right angles, the first electric reflector is installed below the mechanoluminescent module, and the first electric reflector can be automatically switched to a position of 45° or 90° with the horizontal direction, so as to reflect the excitation light emitted by the light source through the second anvil to irradiate the luminescent material;

[0007] like Figure 1 As shown, the second electric reflector is installed below the first electric reflector, and the second electric reflector can automatically switch to a position of 45° or 90° to the horizontal direction; the camera is installed at the second anvil position on the mesoluminescent module directly opposite to the second electric reflector, and the spectrometer is placed at right angles to the camera and in the same horizontal direction as the second electric reflector.

[0008] Beneficial effects of the present invention:

[0009] (1) The present invention discloses a micro-region mechanoluminescence measurement system, which uses diamond to pressurize the luminescent material and can reach a pressure scale of the gigapascal (GPa) level.

[0010] (2) The present invention discloses a micro-area mesoluminescence measurement system, which uses diamond to pressurize the luminescent material. The mesoluminescence area of ​​the luminescent material is extremely small, and has the advantages of rapid testing, high sensitivity, and small sample consumption.

[0011] (3) The present invention discloses a micro-area mechanoluminescence measurement system, which also includes a camera, which can accurately image the mechanoluminescence area of ​​the luminescent material and calculate the actual mechanoluminescence area of ​​the luminescent material, thereby calculating the precise pressure on the luminescent material and obtaining high-precision detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Schematic diagram of a micro-area mesoluminescence measurement system

[0013] Figure 2 Schematic diagram of the assembly of a mesoluminescence module for a micro-area mesoluminescence measurement system

[0014] Figure 3 A schematic diagram of the working of a mechanoluminescence module of a micro-area mechanoluminescence measurement system

[0015] Figure 4 A first implementation of a micro-area mechanoluminescence measurement system

[0016] Figure 5 A second implementation of a micro-area mechanoluminescence measurement system

[0017] In the figure: 1- mesoluminescent module, 1-1- housing, 1-2- thrust motor, 1-3- motor telescopic shaft, 1-4- coupling, 1-5- pressure sensor, 1-6- moving cylinder, 1-7- moving pressure rod, 1-8- spring, 1-9- pressure plate, 1-10- first anvil, 1-11- sample stage, 1-12- second anvil, 2- light source, 3- first electric reflector, 4- second electric reflector, 5- camera, 6- spectrometer, 7- external control program DETAILED DESCRIPTION

[0018] The technical scheme of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation cases. It should be understood that the following embodiments are only exemplary descriptions and explanations of the present invention and should not be construed as limiting the scope of protection of the present invention. All technologies implemented based on the above content of the present invention are included in the scope that the present invention is intended to protect.

[0019] The present invention provides a micro-region mechanoluminescence measurement system, such as Figure 1 As shown, it is mainly composed of a mesoluminescent module 1, a light source 2, a dichroic mirror, an electric reflector, a camera 5 and a spectrometer 6.

[0020] like Figure 2As shown, the mechanoluminescent module 1 includes a housing 1-1, a thrust motor 1-2, a motor telescopic shaft 1-3, a coupling 1-4, a pressure sensor 1-5, a moving sleeve 1-6, a moving pressure rod 1-7, a spring 1-8, a pressure plate 1-9, a first anvil 1-10, a second anvil 1-12, and a sample stage 1-11. The thrust motor 1-2 is mounted and fixed on the upper end of the housing 1-1, and the thrust motor 1-2 is used to drive the motor telescopic shaft 1-3 mounted thereon to perform telescopic movement. The motor telescopic shaft 1-3 is connected to one end of the pressure sensor 1-5 through the coupling 1-4, and the other end of the pressure sensor 1-5 is connected to the moving sleeve 1-6. The spring 1-8 is sleeved on the moving pressure rod 1-7 and is suspended on the moving sleeve 1-6. The pressure plate 1-9 is fixed to the other end of the moving pressure rod 1-7 except the end suspended on the moving sleeve 1-6. The first anvil 1-10 is embedded on the pressure plate 1-9. The sample stage 1-11 is connected to the housing 1-1. The sample stage 1-11 is provided with a sample slot, and the second anvil 1-12 is installed in the sample slot.

[0021] like Figure 1 As shown, the light source 2 and the mechanoluminescent module 1 are placed at right angles, the first electric reflector 3 is installed below the mechanoluminescent module 1, and the first electric reflector 3 can be automatically switched to a position of 45° or 90° with the horizontal direction, so as to reflect the excitation light emitted by the light source 2 through the second anvil 1-12 to irradiate the luminescent material;

[0022] like Figure 1 As shown, the second electric reflector 4 is installed below the first electric reflector 3, and the second electric reflector 4 can automatically switch to a position of 45° or 90° with the horizontal direction; the camera 5 is installed at the second anvil 1-12 position on the second electric reflector 4 facing the electroluminescent module 1, and the spectrometer 6 is placed at right angles to the camera 5 and in the same horizontal direction as the second electric reflector 4.

[0023] Specifically, when the mechanoluminescent module 1 applies pressure to the luminescent material, Figure 3As shown, according to the requirements of the electroluminescent performance test of the luminescent material, the thrust motor 1-2 is controlled by the external control program 7 to start working, pushing the motor telescopic shaft 1-3 to extend downward, driving the pressure sensor 1-5, the moving sleeve 1-6, the moving pressure rod 1-7, the spring 1-8, the pressure plate 1-9, and the first anvil 1-10 connected thereto to descend together until the first anvil 1-10 supports the luminescent material. At this time, the motor telescopic shaft 1-3 is pushed by the thrust motor 1-2 to continue to extend downward, the spring 1-8 is compressed by the downward pressure of the moving sleeve 1-6, the pressure plate 1-9 and the first anvil 1-10 thereon are acted upon by the compressed spring force, and the luminescent material is pressurized. The pressure sensor 1-5 reads the compressed spring force and feeds it back to the external control program 7.

[0024] Example 1

[0025] Figure 4 The first embodiment of the micro-area mechanoluminescence measurement system is shown, and the system mainly includes a mechanoluminescence module 1, a light source 2, a first electric reflector 3, a second electric reflector 4, a camera 5 and a spectrometer 6, and can detect the mechanoluminescence performance of the luminescent material only under mechanical pressure. The luminescent material is placed on the second anvil 1-12, and the luminescent material is pressurized by the mechanoluminescence module 1; Figure 4 As shown, the light source 2 is not turned on, and the first electric reflector 3 is placed at 90° to the horizontal direction; the second electric reflector 4 is first placed at 90° to the horizontal direction (solid line position), and the fluorescence emitted by the luminescent material under the pressure of the mechanoluminescent module 1 is directed downward (solid line arrow) into the camera 5 for imaging of the luminescent area, and then the second electric reflector 4 is switched to be placed at 45° to the horizontal direction (dashed line position), and the fluorescence emitted by the luminescent material under the pressure of the mechanoluminescent module 1 is reflected by the second electric reflector 4 (dashed line arrow) and enters the spectrometer 6, and the spectrometer 6 collects the fluorescence signal for analysis to obtain a spectrum diagram to obtain spectral data, and the mechanoluminescence characteristics of the luminescent material under various pressures are obtained through analysis and processing.

[0026] Example 2

[0027] Figure 4The first embodiment of the micro-area mechanoluminescence measurement system is shown. The system mainly includes a mechanoluminescence module 1, a light source 2, a first electric reflector 3, a second electric reflector 4, a camera 5 and a spectrometer 6, which can detect the mechanoluminescence performance of the luminescent material after being light-activated by the external light source 2. First, the luminescent material is placed on the second anvil 1-12, the light source 2 is turned on, and the first electric reflector 3 is placed at 45° to the horizontal direction (solid line position). The excitation light emitted by the light source 2 is reflected by the first electric reflector 3 and passes through the second anvil 1-12 on the sample stage 1-11. After irradiating the luminescent material for light activation, the light source 2 is turned off and the second electric reflector 4 is switched to be placed at 90° to the horizontal direction (dashed line position). Then, the light-activated luminescent material is pressurized by the mechanoluminescence module 1; finally, as shown in FIG. Figure 4 As shown, the second electric reflector 4 is first placed at 90° to the horizontal direction (solid line position), and the fluorescence emitted by the luminescent material under the pressure of the mechanoluminescent module 1 is downward (solid line arrow) and enters the camera 5 for imaging of the luminescent area. Then the second electric reflector 4 is switched to be placed at 45° to the horizontal direction (dashed line position), and the fluorescence emitted by the luminescent material under the pressure of the mechanoluminescent module 1 is reflected by the second electric reflector 4 (dashed line arrow) and enters the spectrometer 6. The spectrometer 6 collects the fluorescence signal for analysis to obtain spectral data, and the mechanoluminescence characteristics of the luminescent material under various pressures are obtained through analysis and processing.

[0028] The above is an explanation of the embodiments of the present invention. However, the present invention is not limited to the above embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A micro-area mechanoluminescence measurement system, characterized in that: The system comprises a mechanoluminescent module (1), a light source (2), a first electric reflector (3), a second electric reflector (4), a camera (5) and a spectrometer (6): The light source (2) and the mechanoluminescent module (1) are placed at right angles, the first electric reflector (3) is installed below the mechanoluminescent module (1), and the first electric reflector (3) can automatically switch to a position of 45° or 90° with respect to the horizontal direction, and is used to reflect the excitation light emitted by the light source (2) through the second anvil (1-12) to irradiate the luminescent material when the first electric reflector (3) is at a position of 45° with respect to the horizontal direction; The second electric reflector (4) is installed below the first electric reflector (3), and the second electric reflector (4) can automatically switch to a position of 45° or 90° with respect to the horizontal direction; the camera (5) is installed below the second electric reflector (4) and directly opposite to the second anvil (1-12) on the electroluminescent module (1), and is used to pressurize the luminescent material through the electroluminescent module (1) to emit light when the first electric reflector (3) is at a position of 90° with respect to the horizontal direction and the second electric reflector (4) is at a position of 90° with respect to the horizontal direction. The fluorescence is imaged and photographed by the luminescent area; the spectrometer (6) is placed at right angles to the camera (5) and in the same horizontal direction as the second electric reflector (4), and is used to collect the fluorescence signal emitted by the luminescent material under the pressure of the mechanoluminescent module (1) when the first electric reflector (3) is at 90 degrees to the horizontal direction and the second electric reflector (4) is at 45 degrees to the horizontal direction, and analyze and obtain spectral data, and analyze and process the luminescent area imaging taken by the camera (5) to obtain the mechanoluminescent characteristics of the luminescent material under various pressures.

2. A micro-area mechanoluminescence measurement system according to claim 1, characterized in that: The mechanoluminescent module (1) comprises a housing (1-1), a thrust motor (1-2), a motor telescopic shaft (1-3), a coupling (1-4), a pressure sensor (1-5), a moving sleeve (1-6), a moving pressure rod (1-7), a spring (1-8), a pressure plate (1-9), a first pressure anvil (1-10), a second pressure anvil (1-12), and a sample stage (1-11); the thrust motor (1-2) is mounted and fixed on the upper end of the housing (1-1), and the motor telescopic shaft (1-3) is connected to one end of the pressure sensor (1-5) via the coupling (1-4). , the other end of the pressure sensor (1-5) is connected to the moving sleeve (1-6); the moving pressure rod (1-7) is sleeved with the spring (1-8) and is suspended on the moving sleeve (1-6); the pressure plate (1-9) is fixed to the other end of the moving pressure rod (1-7) except the end suspended on the moving sleeve (1-6); the pressure plate (1-9) is embedded with a first anvil (1-10); the sample stage (1-11) is connected to the housing (1-1); a sample slot is provided on the sample stage (1-11), and a second anvil (1-12) is installed in the sample slot.

3. A micro-area mechanoluminescence measurement system according to claim 2, characterized in that: The system further comprises an external control program (7). When the mechanoluminescent module (1) applies pressure to the luminescent material, the external control program (7) controls the thrust motor (1-2) to start working according to the requirements of the mechanoluminescent performance test of the luminescent material, and pushes the motor telescopic shaft (1-3) to extend downward, driving the pressure sensor (1-5), the moving sleeve (1-6), the moving pressure rod (1-7), the spring (1-8), the pressure plate (1-9), and the first pressure anvil (1-10) connected thereto to descend together until the first pressure anvil (1-10) supports the luminescent material. At this time, the motor telescopic shaft (1-3) is pushed by the thrust motor (1-2) to continue to extend downward, the spring (1-8) is compressed by the downward pressure of the moving sleeve (1-6), the pressure plate (1-9) and the first pressure anvil (1-10) thereon are acted upon by the compressed spring force, and the luminescent material is pressurized. The pressure sensor (1-5) reads the compressed spring force and feeds it back to the external control program (7).

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