CN217605130U - Device suitable for measuring radiation intensity of parts at different angles - Google Patents

Abstract

The utility model relates to a be suitable for different angle radiation intensity measuring device of spare part, it includes: the heater is used for controlling the temperature field of the sample to be detected; the active double-laser temperature measurement module is used for measuring the surface temperature of the sample; the broadband infrared radiometer is used for measuring the infrared radiation intensity of a sample to be measured; the surface source black body is used for calibrating the responsivity of the infrared radiometer; the first large-stroke mobile platform is used for two-dimensional movement of the active double-laser temperature measurement module in the horizontal and vertical directions; the third large-stroke mobile platform is used for planar two-dimensional movement of the infrared radiometer; the rotating platform is used for realizing 180-degree range rotation of the heater; the signal acquisition and processing module is used for collecting temperature measurement signals and infrared radiation intensity measurement signals; and the limiting diaphragm is used for reducing the influence of stray light on the radiation intensity measurement. The utility model discloses develop the infrared radiation intensity measurement of different angles and directly obtain the part surface temperature measurement that awaits measuring through non-contact temperature measurement method under the condition of not destroying spare part surface characteristic.

Description

A device suitable for measuring the radiation intensity of parts at different angles

technical field

The utility model relates to the technical field of infrared radiation, in particular to a device suitable for measuring the radiation intensity of components at different angles.

Background technique

The importance of infrared radiation intensity in modern industry, scientific research, new energy and daily life is becoming more and more significant. The research on the accurate measurement of infrared radiation intensity of parts-level objects has gradually attracted attention. The variation law of radiation intensity has also been paid more and more attention.

There are many technical difficulties in the measurement of infrared radiation intensity, mainly including: the measurement of the real temperature of the surface of the parts, the influence of external stray radiation on the measurement results, and the response characteristics of the radiometer used to directly measure the radiation intensity. In addition, if it is necessary to carry out radiation intensity measurement at different angles, it is also necessary to solve the influence of significant differences in radiation intensity values at different angles on the measurement.

Therefore, it is necessary to propose a device suitable for measuring the radiation intensity of parts at different angles, so as to realize the accurate measurement of the infrared radiation intensity of parts-level objects at different angles.

Utility model content

The purpose of this utility model is to provide a device suitable for measuring the radiation intensity of parts at different angles, so as to realize the measurement of the infrared radiation intensity of parts at different angles.

In order to achieve the above purpose, a device suitable for measuring the radiation intensity of parts at different angles includes:

Heater, used for temperature field control of the sample to be tested;

Active dual-laser temperature measurement module for surface temperature measurement of samples to be measured;

Broadband infrared radiometer, used to measure the infrared radiation intensity of the sample to be tested;

Surface source black body, used for responsivity calibration of broadband infrared radiometer;

The first large-stroke mobile platform is used for the two-dimensional movement of the active dual-laser temperature measurement module in the horizontal and vertical directions;

The second largest travel mobile platform is used for the two-dimensional movement of the infrared radiometer in the horizontal plane;

Rotary table, used to rotate the heater in the range of 180°;

Limiting diaphragm, used to reduce the influence of stray light on radiation intensity measurement;

The signal acquisition and processing module is used to collect temperature measurement and infrared radiation intensity measurement signals.

The heater has a working temperature range of 600-1500°C, and its heating body is made of high-temperature ceramics and other high-temperature heat-resistant materials, including an auxiliary temperature field uniform structure, and a matching control system to control the heating and cooling process of the heater.

Wherein, the active dual-laser temperature measurement module includes two laser light sources with different wavelengths and two corresponding wavelength detectors, an optical signal transmission component and a calibration source.

Wherein, the infrared imaging module includes an infrared thermal imager, the working spectral range: 1-25 microns, and has a signal transmission interface.

Among them, the broadband infrared radiometer has the function of adjusting the field of view angle, the measurement distance range is 1-200m, the detection spectrum range is 1-25 microns, and a cooling system is provided to maintain the temperature of the detector inside the device.

The working temperature range of the surface source black body is 50-550°C, the area of the radiation source is not less than 100mm×100mm, and the temperature uniformity of the radiation source is better than 2°C/30 minutes.

Among them, the positioning accuracy of the first large-stroke mobile platform is higher than 0.1mm, the horizontal stroke is not less than 1m, the vertical stroke is not less than 0.2m, the load-bearing capacity is more than 20kg, and it has two working modes: manual and electronic control.

Among them, the positioning accuracy of the second largest travel mobile platform is higher than 0.1mm, the direction stroke in both directions of the horizontal plane is not less than 1m, the load-bearing capacity is greater than 35kg, and it has two working modes: manual and electronic control.

Among them, the rotary table can rotate 360° and the positioning accuracy is higher than 0.1°, the load-bearing capacity is greater than 40kg, and it has two working modes: manual and electronic control.

Wherein, the aperture diameter of the limiting aperture is 100mm to 500mm, and a high absorptivity coating is sprayed on the outside to reduce the influence of stray light on the radiation intensity measurement.

It can be seen from the above-mentioned technical scheme of a device suitable for measuring the radiation intensity of components at different angles of the present invention, the core components of the system of the present invention mainly include: an active laser temperature measurement module, an infrared radiation intensity detection module, and a heater. , a calibration source and a mobile platform, the mobile platform includes a translation stage and a rotation stage. The active laser temperature measurement module can determine the surface temperature of the parts, and the infrared radiation intensity detection module can measure the radiation intensity of the parts. The combination of the rotary table and the second mobile platform can measure the radiation intensity of different parts and angles at different angles.

Additional aspects and advantages of the present invention will be set forth in part in the following description, which will become apparent from the following description, or will be learned by practice of the present invention.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. , for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic diagram of a device of the present invention suitable for measuring the radiation intensity of parts at different angles.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but not to be construed as a limitation of the present invention.

It will be understood by those skilled in the art that the singular forms "a", "an", "the" and "the" as used herein can include the plural forms as well, unless expressly stated otherwise. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of stated features, integers, steps, operations, elements and/or components, but does not exclude the presence or addition of one or more other features , integers, steps, operations, elements, components and/or groups thereof. It will be understood that when we refer to an element as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Furthermore, "connected" or "coupled" as used herein may include wirelessly connected or coupled. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art and, unless defined as herein, are not to be taken in an idealized or overly formal sense. explain.

In order to facilitate the understanding of the embodiments of the present utility model, the following will take specific embodiments as examples for further explanation and description in conjunction with the accompanying drawings.

FIG. 1 is a device suitable for measuring the radiation intensity of parts at different angles according to an embodiment of the present invention. As shown in Figure 1, the temperature measurement device includes: a heater for heating, cooling and steady-state temperature field control of the sample to be measured; an active dual-laser temperature measurement module for measuring the surface temperature of the sample; broadband infrared radiation meter, used to measure the infrared radiation intensity of the sample to be tested; surface source black body, used for infrared radiometer responsivity calibration; the first large-travel mobile platform (also known as the "first translation stage"), used for active dual laser The two-dimensional movement of the temperature measurement module can obtain the average surface temperature of the sample to be measured; the second largest travel mobile platform (also known as the "second translation stage") is used for the two-dimensional horizontal movement of the infrared radiometer; It is used to rotate the heater within a range of 180° (that is, the rotation of the component to be tested at different angles); the signal acquisition and processing module is used to collect temperature measurement and infrared radiation intensity measurement signals; the limiting aperture is used to reduce noise The effect of astigmatism on radiant intensity measurements.

Among them, the working temperature range of the heater is 600-1500°C, and the heater heating body is made of high-temperature resistant heating materials such as high-temperature ceramics. The heater includes an auxiliary temperature field uniform structure, and is equipped with a control system to control the heating. The temperature rising and constant temperature process of the device; the active dual-laser temperature measurement module includes two laser light sources with different wavelengths and two corresponding wavelength detectors, optical signal transmission components and calibration sources, and the working temperature range is 600-1500 ° C; The broadband infrared radiometer has the function of adjusting the field of view angle, the measuring distance range is 1-200m, the detection spectral range is 1-25 microns, and a cooling system is provided to maintain the temperature of the internal detector. 50-550℃, the area of the radiation source is not less than 100mm×100mm, the temperature uniformity of the radiation source is better than 2℃/30min; the positioning accuracy of the first large-travel mobile platform is higher than 0.1mm, and the horizontal stroke is not less than 1m, The vertical stroke is not less than 0.2m, the load-bearing capacity is more than 20kg, and it has two working modes: manual and electronic control; the positioning accuracy of the second largest stroke mobile platform is higher than 0.1mm, the horizontal stroke is not less than 1m, and the load-bearing capacity is more than 35kg , with two working modes of manual and electronic control; the rotary table can rotate 360° and the positioning accuracy is higher than 0.1°, the load-bearing capacity is greater than 40kg, and it has two working modes of manual and electronic control; the diameter of the limiting aperture is 100mm to 500mm , externally sprayed with high absorptivity coating to reduce the influence of stray light on radiant intensity measurement.

Turn on the active temperature measurement calibration source, move the active dual laser measurement module to the horizontal position 2, and carry out the calibration experiment of the instrument constant C of the active dual laser temperature measurement module. Based on the obtained instrument constants, the active dual laser temperature measurement can be The module moves to horizontal position 3 to measure the surface temperature of the component to be tested.

Move the infrared radiation intensity detection module to the horizontal position 1, so that the black body surface source is within its field of view (but not full of the field of view), and calibrate its spectral responsivity.

Turn on the heater, use the first controller to control the heater, and stabilize the component to be tested around a certain temperature.

Use the third controller to control the first moving platform, move the active dual-laser measurement module to the horizontal position 3, and carry out temperature measurement on the surface of the component to be measured.

Use the third controller to control the first mobile platform to move the active dual-laser measurement module to the horizontal position 2; use the fourth controller to control the second mobile platform to move the infrared radiation intensity detection module to the horizontal position 3, so that The component to be tested is completely within the field of view of the infrared radiation intensity detection module, and the infrared radiation intensity measurement at this temperature is carried out to obtain its spectral radiation intensity. Further, the spectral radiation intensity can be integrated in the moving band to obtain the corresponding integrated spectral radiation intensity.

The second controller is used to control the rotation of the turntable, and the above measurement process is repeated to obtain the measurement results of the infrared radiation intensity of the component to be measured at different angles. It should be noted that with the change of the angle, the intensity value of the component to be tested in the direction along the horizontal position 3 will change. At this time, the infrared radiation intensity detection module needs to move back and forth at the horizontal position 3 to ensure the detector. The response is in the appropriate interval.

The utility model provides a device suitable for measuring the radiation intensity of parts at different angles, which mainly comprises: a heater; an active dual-laser temperature measurement module; a broadband infrared radiometer; a surface source black body; a first large-stroke mobile platform; Two-stroke mobile platform; rotary table; signal acquisition and processing module. Through the application of the active dual-wavelength temperature measurement module, the emissivity-free measurement of the surface temperature of the part to be measured can be realized without destroying the surface temperature field of the part, and then the infrared radiation intensity at this temperature can be measured by using an infrared radiometer . The combination of the rotary table and the second mobile platform can measure the radiation intensity of different parts at different angles.

Those skilled in the art should understand that the above-mentioned application types are only examples, and other existing or future application types, if applicable to the embodiments of the present invention, should also be included in the protection scope of the present invention, and here Incorporated herein by reference.

Those skilled in the art should understand that the number of various types of elements shown in FIG. 1 for simplicity may be less than the number in an actual system, but this omission will undoubtedly not affect the clarity and clarity of the embodiments of the utility model. Full disclosure is required.

The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. The changes or replacements should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. A device suitable for measuring the radiation intensity of parts at different angles, comprising: a heater, used for temperature field control of a sample to be measured; an active dual-laser temperature measurement module, used for sample surface temperature measurement; broadband infrared The radiometer is used to measure the infrared radiation intensity of the sample to be measured; the surface source black body is used to calibrate the responsivity of the infrared radiometer; it is characterized in that: the first large-stroke mobile platform is used for the active dual-laser temperature measurement module in the horizontal and Two-dimensional movement in the vertical direction; the second largest travel moving platform is used for the two-dimensional movement of the broadband infrared radiometer in the horizontal plane; the rotating table is used to rotate the heater within a range of 180°; the limiting diaphragm is used for It is used to reduce the influence of stray light on radiation intensity measurement; the signal acquisition and processing module is used to collect temperature measurement and infrared radiation intensity measurement signals. 2 . The device according to claim 1 , wherein the working temperature range of the heater is 600-1500° C., and the heating body of the heater is formed of high temperature resistant heating materials such as high temperature ceramics, and the auxiliary temperature field is uniform. 3 . structure, and a matching control system to control the heating and cooling process of the heater. 3 . The device according to claim 1 , wherein the active dual-laser temperature measurement module comprises two laser light sources with different wavelengths and two corresponding wavelength detectors, an optical signal transmission component and a calibration source. 4 . 4. The device according to claim 1, wherein the broadband infrared radiometer has an adjustable field of view angle, a measurement distance range of 1-200 m, a detection spectral range of 1-25 microns, and a matching cooling system to Keep the temperature of the detector inside the device stable. 5 . The device according to claim 1 , wherein the surface source blackbody has a working temperature range of 50-550° C., the radiation source area is not less than 100 mm×100 mm, and the temperature uniformity of the radiation source is better than 2° C./30 minutes. 6 . . 6. The device according to claim 1, wherein the positioning accuracy of the first large-stroke mobile platform is higher than 0.1mm, the horizontal stroke is not less than 1m, the vertical stroke is not less than 0.2m, and the load-bearing capacity is greater than 20kg , with manual and electronic control two working modes. 7. The device according to claim 1, wherein the positioning accuracy of the second large-stroke mobile platform is higher than 0.1mm, the direction stroke in both directions of the horizontal plane is not less than 1m, the load-bearing capacity is greater than 35kg, and has Manual and electronic control two working modes. 8 . The device according to claim 1 , wherein the rotary table can rotate 360°, the positioning accuracy is higher than 0.1°, the load-bearing capacity is higher than 40kg, and it has two working modes: manual and electronic control. 9 . 9 . The device according to claim 1 , wherein the aperture diameter of the limiting aperture is 100 mm to 500 mm, and a high absorption rate coating is sprayed on the outside to reduce the influence of stray light on the radiation intensity measurement. 10 . 10 . The device according to claim 1 , further comprising a signal acquisition and processing module for collecting measurement signals and giving the infrared radiation intensity at a specific surface temperature of the component. 11 .

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