CN111103263B - Device for testing antifogging performance of glass coating - Google Patents
Device for testing antifogging performance of glass coating Download PDFInfo
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- CN111103263B CN111103263B CN201811260262.6A CN201811260262A CN111103263B CN 111103263 B CN111103263 B CN 111103263B CN 201811260262 A CN201811260262 A CN 201811260262A CN 111103263 B CN111103263 B CN 111103263B
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Abstract
The utility model provides a test glass coating antifog performance's device which characterized in that: comprises a signal emitting component, a light source which can emit parallel light; the light barrier is provided with a light outlet; the signal receiving assembly is provided with a detection probe capable of acquiring the illumination intensity; the clamping part is positioned between the light barrier and the detection probe and is used for fixing a glass test block to be tested; and the detection circuit is used for recording the illumination intensity signals acquired by the detection probe and the acquisition time corresponding to each illumination intensity signal. The invention has the advantages that: 1. the whole structure is compact, the installation is simple and convenient, and the operation is easy; 2. the photoelectric detection system is additionally arranged, so that the optical intensity value transmitted by the glass test block can be directly detected, the antifogging performance of the glass coating is further judged, the accuracy is higher than that of visual observation, and the result stability and precision are high.
Description
Technical Field
The invention relates to a device for testing antifogging performance of a glass coating.
Background
Transparent optical materials (such as silicate glass, quartz glass, polyethylene and the like) are indispensable materials in production, life and work of modern people, and people have been dedicated to solving the problem of surface atomization of the transparent optical materials in the past decades.
When transparent optical material's surface fogging, can form a lot of beads of different sizes, the direction that different beads were put the reflection of light and scattering is also different to reduce transparent material's luminousness, influence people and see through the effect that other objects were observed on the optical material surface, and then destroy the accuracy that scientific experiment measured the result, for example solar cell, energy utilization is directly proportional with the transmissivity of light, obviously, and fogging can reduce energy utilization. In addition, the amount of condensate and the shape of small droplets determine the light transmission performance after atomization, although small droplets reflect light more significantly than large droplets, which does not mean better optical transmission, and irregular reflection to the periphery has a greater influence on the light transmission of the surface than reflection in only one direction, whereas the wettability of the surface determines the shape of the droplets on the surface, and droplets formed on a hydrophobic surface are more rounded than on a hydrophilic surface.
At present, the main mode of solving the atomizing problem is to change the wettability of the surface to control the condensate liquid in the form of the surface, namely, through increasing the surface energy of the substrate, construct a hydrophilic surface, so that the water vapor can not form dispersed condensate droplets on the surface, but spread into an even water film, thereby avoiding irregular diffuse reflection of small droplets, and therefore when the super-hydrophilic coating exists on the glass surface, the antifogging performance of the super-hydrophilic coating can be greatly improved.
In the prior art, the antifogging performance testing device and method adopted for the scheme mainly include the following two types:
firstly, placing conical bottles filled with water at different temperatures on paper written with characters, placing the glass surface above the conical bottles, and observing the paper written with the characters through the glass surface by naked eyes;
and secondly, measuring the contact angle or advancing angle of the water drop on the surface of the glass.
However, the above-mentioned conventional antifogging property testing apparatus and method have the following disadvantages:
the first testing device for the antifogging performance is too simple, the result of the testing method is partial and qualitative, quantification is not achieved, the testing result is observed through naked eyes and completely depends on personal experience, the testing result is different from person to person, and deviation is large.
The second testing device for antifogging performance relates to a professional angle measuring instrument, and the result of the testing method is relatively quantitative, but the shape of a single liquid drop is considered, and relevant indexes such as optical signal intensity or light transmittance and the like which have direct influence on the visual line cannot be obtained.
In summary, the existing testing devices and testing methods all have certain defects and shortcomings, and cannot obtain the best detection effect, and further improvements are yet to be made.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a device for testing the antifogging property of a glass coating, which has a compact and simple structure and can directly obtain a light intensity signal, aiming at the current situation of the prior art, and the device can improve the accuracy and reliability of antifogging property detection.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a test glass coating antifog performance's device which characterized in that: the device comprises
The signal transmitting component comprises a light source capable of emitting parallel light;
the light barrier is positioned in front of the emission light source of the signal emission assembly, and a light outlet hole is formed in the light barrier;
the signal receiving assembly is provided with a detection probe capable of acquiring illumination intensity, and the central line of the detection probe and the central line of the light outlet hole are positioned on the same horizontal line;
the clamping part is positioned between the light barrier and the detection probe and is used for fixing a glass test block to be tested;
and the detection circuit is used for recording the illumination intensity signals acquired by the detection probe and the acquisition time corresponding to each illumination intensity signal.
Preferably, the detection circuit may be implemented by various existing circuit structures, and in order to further improve reliability of signal output, it is necessary to amplify the collected signal, and the detection circuit specifically includes
The light emitting diode circuit is electrically connected with the light source of the signal transmitting assembly;
the photoresistor circuit is electrically connected with the detection probe of the signal receiving assembly;
the detection signal amplifying circuit receives the detection signal output by the photoresistor circuit and amplifies the detection signal;
the transmitting circuit is connected with the output end of the detection signal amplifying circuit and transmits the amplified detection signal to the main controller;
the timing circuit is used for timing each acquired detection signal and outputting a time signal to the main controller;
and the power supply circuit supplies power to the light emitting diode circuit, the photoresistor circuit, the detection signal amplifying circuit, the transmitting circuit and the timing circuit.
Preferably, the signal emission assembly comprises a first emission chamber and a second emission chamber which are communicated with each other, the light source is arranged in the first emission chamber, and the light barrier is detachably clamped on the connecting surface of the first emission chamber and the second emission chamber.
In view of compact structure and convenient installation, it is further preferable that the first emission chamber and the second emission chamber have rectangular cross sections and are fixed together by screw connection.
In order to realize the temperature difference between the two sides of the glass, a heating circuit which can increase the temperature in the second emission chamber is preferably arranged in the second emission chamber. The heating circuit can increase the temperature difference of two sides of the glass test block after one side of the glass test block is heated so as to realize the rapid generation of fog.
Preferably, the signal receiving assembly comprises a bottom plate and a receiving chamber, the receiving chamber is rectangular, the detection probe is arranged on the bottom plate, and the receiving chamber is communicated with the second transmitting chamber.
More preferably, a cooling circuit capable of reducing the temperature in the receiving chamber may be provided in the receiving chamber. The temperature difference of the two sides of the glass test block can be further increased by the arrangement of the refrigerating circuit, so that the fog on the glass test block can be generated quickly in the test process conveniently.
In view of the convenience of attachment and detachment, it is preferable that the bottom plate and the receiving chamber are fixedly coupled by riveting or screws.
In order to facilitate installation and replacement of the glass test block, preferably, the receiving chamber and the second transmitting chamber are respectively provided with an upper clamping portion and a lower clamping portion which are arranged in an up-down symmetrical mode at the butt joint position, and the clamping portion is a vertical slot formed by the upper clamping portion and the lower clamping portion.
In order to facilitate the installation, fixation and replacement of the glass test block, preferably, the device further comprises an adjusting device which comprises
A guide rail;
the moving part can do linear motion along the guide rail, the light source is fixedly connected with the moving part, and the first emission chamber is fixedly connected with the moving part;
the adjusting handle is provided with an operating part and can drive the moving part to slide along the guide rail;
the limiting device is fixed at the end part of the guide rail, the adjusting handle is rotatably installed on the limiting device, the moving part is located on one side of the limiting device, the operating part of the adjusting handle is located at the other end of the limiting device, and the limiting device is used for achieving the purpose that the adjusting handle and the moving part move in a horizontal direction in a limiting mode.
In order to facilitate the driving of the moving part to slide along the guide rail, preferably, the adjusting handle is a screw rod with a T-shaped cross section, and the threaded part of the adjusting handle is in threaded connection with the moving part. When the adjusting handle rotates, the moving part can be driven to move back and forth along the guide rail through the threaded connection relation.
In order to facilitate assembly and disassembly, it is further preferable that the limiting device includes a stopper, and a front limiting block and a rear limiting block respectively disposed on two sides of the stopper.
Preferably, the stop block, the front limit block and the rear limit block are fixedly connected through a pin.
Preferably, the end of the guide rail and the limiting device are fixed into a whole through threaded connection, pin connection or welding.
For convenience of assembly and disassembly, the movable portion and the light source are preferably fixedly connected through welding or riveting or buckling.
In order to ensure smooth and reliable movement, the moving part and the first emission chamber are preferably fixedly connected by welding.
In order to improve the accuracy of measurement and ensure the uniformity of a light source irradiating on a glass test block, the number of the light emitting holes is 3-6, the light emitting holes are uniformly distributed along the circumferential direction of the light barrier, and correspondingly, the number of the detection probes is the same as that of the light emitting holes and the detection probes are arranged in a one-to-one correspondence manner.
In order to avoid that the detection signal is too weak due to too small light outlet holes or the measurement accuracy is affected due to light scattering caused by too large light outlet holes, the aperture size of the light outlet holes is preferably matched with the size of the opening of the detection window of the detection probe.
Preferably, the glass test block is provided with an anti-fog coating, and the side of the glass test block with the anti-fog coating faces the light source of the signal emission assembly.
Compared with the prior art, the invention has the advantages that: 1. the whole structure is compact, the installation is simple and convenient, and the operation is easy; 2. the photoelectric detection system is additionally arranged, so that the light intensity value transmitted by the glass test block can be directly detected, the antifogging performance of the glass coating can be judged, the accuracy is higher than that of visual observation, and the result stability and precision are high; 3. the device integrally forms a relatively closed space, so that the influence of external interference in the test can be effectively reduced, the test accuracy and precision are improved, the connection between the light intensity signal obtained by the test and the antifogging performance is tighter, and the test result can directly indicate whether atomization has obvious influence on sight.
Drawings
FIG. 1 is a schematic structural diagram of an apparatus for testing antifogging property of glass coating according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1, the present embodiment discloses an apparatus for testing antifogging property of glass coating, which comprises a signal emitting assembly, a signal receiving assembly, a detection circuit and an adjusting device capable of realizing installation of a glass testing block 5.
The signal emission assembly comprises a first emission chamber 11 and a second emission chamber 12 which are communicated with each other, a light source 13 capable of emitting parallel light is arranged in the first emission chamber 11, in the embodiment, a light emitting diode is used as the light source 13, the sections of the first emission chamber 11 and the second emission chamber 12 are respectively rectangular, and the first emission chamber 11 and the second emission chamber are fixedly connected into a whole through threads, so that the disassembly and the assembly are convenient; the detachable light barrier 2 is clamped on the connecting surface of the first emission chamber 11 and the second emission chamber 12, the light barrier 2 is positioned in front of the emission light source 13 of the signal emission assembly, the light barrier 2 is provided with a light outlet 21, and the light source 13 can be emitted through the light outlet 21.
The signal receiving assembly comprises a bottom plate 31 and a receiving chamber 32, the receiving chamber 32 is rectangular and is communicated with the second transmitting chamber 12, a detection probe 33 capable of collecting the illumination intensity is arranged on the bottom plate 31, and the central line of the detection probe 33 and the central line of the light outlet hole 21 are positioned on the same horizontal line; the bottom plate 31 and the receiving chamber 32 are fixedly coupled by riveting or screws in consideration of convenience of attachment and detachment.
In order to improve the accuracy of measurement and ensure the uniformity of the light source 13 irradiating the glass test block 5, 3-6 light-emitting holes 21 of the light barrier 2 are preferred, four light-emitting holes 21 of the embodiment can simultaneously detect signal values in four directions, namely, up, down, left and right, so that the test result is more accurate, the four light-emitting holes 21 are uniformly distributed along the circumferential direction of the light barrier 2, and correspondingly, four detection probes 33 arranged on the bottom plate 31 of the embodiment are also arranged and correspond to the light-emitting holes 21 one by one; in order to avoid that the detection signal is too weak due to too small light outlet holes 21 or the measurement accuracy is affected by light scattering due to too large light outlet holes 21, the aperture size of the light outlet holes 21 is matched with the size of the corresponding detection window opening of the detection probe 33, if the aperture size of the light outlet holes 21 is too small, the detection signal is weak, and if the aperture size of the light outlet holes 21 is too large, the light area passing through the light outlet holes 21 is too large, and when the glass is fogged, the scattered light can be received by the detection system, so that the accuracy is affected.
In order to test the antifogging performance of the fogged glass conveniently, the fogged effect can be achieved by increasing the temperature difference between the two sides of the glass; wherein, the second launching chamber 12 is internally provided with a heating circuit which can improve the temperature in the second launching chamber 12, and after the heating circuit heats one side of the glass testing block 5, the temperature difference between the two sides of the glass testing block 5 can be increased, so as to realize the rapid generation of fog; the receiving chamber 32 can be provided with a refrigerating circuit capable of reducing the temperature in the receiving chamber 32, and the temperature difference between the two sides of the glass testing block 5 can be further increased by the refrigerating circuit, so that the fog on the glass testing block 5 can be generated quickly in the test process conveniently.
In order to facilitate the installation and replacement of the glass, the receiving chamber 32 and the second launching chamber 12 form a clamping portion at the butt joint, wherein the outer side edge of the receiving chamber 32 and the outer side edge of the second launching chamber 12 form an upper clamping portion 41 and a lower clamping portion 42 which are symmetrically arranged up and down at the butt joint respectively, the clamping portion is a vertical slot formed by the upper clamping portion 41 and the lower clamping portion 42, and the glass test block 5 can be inserted into the slot.
In order to clamp the glass test block 5, the present embodiment realizes the adjustment of the spacing distance between the second emission chamber 12 and the receiving chamber 32 by an adjusting device, the adjusting device comprises a guide rail 6, a moving part 7, an adjusting handle 8 and a limiting device, wherein the guide rail 6 is laid on two sides of the first emission chamber 11, the second emission chamber 12 and the receiving chamber 32, the moving part 7 can move linearly along the guide rail 6, the light source 13 is fixedly connected with the moving part 7 by welding or riveting or buckling, and in order to ensure the stability and reliability of the movement, the moving part 7 is fixedly connected with the first emission chamber 11 by welding.
The adjusting handle 8 can drive the moving part 7 to slide along the guide rail 6, the adjusting handle 8 is a screw rod with a T-shaped section, the T-shaped head part is an operating part 81, the thread part of the adjusting handle 8 is in threaded connection with the moving part 7, and when the adjusting handle 8 rotates, the moving part 7 can be driven to move back and forth along the guide rail 6 through the threaded connection.
The limiting device is fixed at the end part of the guide rail 6 and is used for realizing the movement limiting of the adjusting handle 8 and the moving part 7 along the horizontal direction; wherein, the adjusting handle 8 is rotatably arranged on the limiting device, the moving part 7 is positioned at one side of the limiting device, and the operating part 81 of the adjusting handle 8 is positioned at the other end of the limiting device; in order to facilitate assembly and disassembly, the limiting device comprises a stop block 91, a front limiting block 92 and a rear limiting block 93 which are respectively arranged on two sides of the stop block 91, and the stop block 91, the front limiting block 92 and the rear limiting block 93 are fixedly connected through pins.
The end part of the guide rail 6 is fixedly connected with the limiting device into a whole through threads or through pin connection or through welding, and the tail part of the guide rail 6 is fixedly connected with the bottom plate 31 of the signal receiving assembly into a whole.
When the operating part 81 of the adjusting handle 8 is rotated, the moving part 7 can be driven to slide along the rail, so that the first emission chamber 11 and the second emission chamber 12 are driven to slide along the rail, and are close to or far from the receiving chamber 32, thereby clamping or loosening the glass test block 5.
The detection circuit of this embodiment is used to record the illumination intensity signals collected by the detection probe 33 and the collection time corresponding to each illumination intensity signal. The detection circuit can be realized by various existing circuit structures, in order to further improve the reliability of signal output, the acquired signal needs to be amplified, and the detection circuit specifically comprises a light-emitting diode circuit, a photoresistor circuit, a detection signal amplification circuit, a transmitting circuit, a timing circuit and a power supply circuit, wherein the light-emitting diode circuit is electrically connected with the light source 13 of the signal emission assembly; the photoresistor circuit is electrically connected with the detection probe 33 of the signal receiving assembly; the detection signal amplifying circuit receives the detection signal output by the photoresistor circuit and amplifies the detection signal; the transmitting circuit is connected with the output end of the detection signal amplifying circuit and transmits the amplified detection signal to the main controller; the timing circuit times each acquired detection signal and outputs a time signal to the main controller; the power supply circuit supplies power to the light-emitting diode circuit, the photoresistor circuit, the detection signal amplifying circuit, the transmitting circuit and the timing circuit respectively, and also supplies power to the heating circuit and the refrigerating circuit simultaneously. The specific circuit diagram of each functional module in the detection circuit is a conventional circuit, and is not described herein again.
The method for testing the antifogging property of the glass by adopting the device comprises the following steps:
(1) at room temperature, putting the glass test block 5 with the anti-fog coating into the clamping part, rotating the adjusting handle 8 to clamp the glass test block 5, enabling one side of the glass test block 5 with the anti-fog coating to face the light barrier 2, starting the light source 13, recording a light intensity signal collected by the detection probe 33 by the detection circuit, and recording the light intensity signal as transmission light intensity i of the light source 13 before fogging after the light source 13 is transmitted by the glass test block 51；
(2) The heating circuit and the refrigerating circuit are started simultaneously, the two sides of the glass test block 5 can continuously generate temperature difference, so that the surface of the glass test block 5 with the anti-fog coating continuously fogs, the light source 13 is started, the light intensity signal acquired by the detection circuit recording detection probe 33 is obtained, and the transmission light intensity I of the light source 13 after the light source 13 is transmitted by the glass test block 5 is obtainediThe measured transmitted light intensity is recorded as I according to the time sequence of the curve L changing along with the time t1，I2，…，In；
(3) Judging the latest current transmitted light intensity I detected on the curve LnWhether or not simultaneously greater than the first k successively detected transmitted intensities, i.e. InWhether or not to be simultaneously greater than In-1，In-2，…，In-kThe value range of k is preferably 2-10, if yes, the curve L is judged to have an inflection point, the detection is stopped, and the next step is executed; if not, keeping the current detection state, and circulating the step;
(4) and calculating the point of the minimum value of the transmission light intensity on the curve L, and recording the point of the minimum value of the transmission light intensity as the transmission light intensity i of the fogged light source 13 after the transmission of the glass test block 52；
(5) Calculating i2/i1By a ratio of i2/i1The ratio of (A) to (B) reflects the antifogging effect of the coating.
When the temperature difference between the two sides of the glass detection block is not large, the glass detection block is smooth and clean at first, so that the transmitted light intensity obtained by initial detection is maximum, namely i1(ii) a As the temperature difference is generated, the glass test block 5 is slowly fogged, and the transmission light intensity changes along with the time curve LThe test device slowly descends in a parabola-like manner, when fog is formed to a certain degree, the fog drops are accumulated to form water drops and drip, the water drops form a water film, the transmission light intensity is suddenly increased, a turning point appears on a curve L, when the turning point is detected, the test is stopped, all detection points on the curve L are sequenced, a point with the minimum transmission light intensity is found, namely the transmission light intensity i after fog is formed2，i2/i1The larger the ratio of (A) is, the better the antifogging effect is.
Claims (17)
1. The utility model provides a test glass coating antifog performance's device which characterized in that: the device comprises
The signal transmitting assembly comprises a light source (13) capable of emitting parallel light;
the light barrier (2) is positioned in front of the emission light source (13) of the signal emission assembly, and a light outlet (21) is formed in the light barrier (2);
the signal receiving assembly is provided with a detection probe (33) capable of collecting the illumination intensity, and the central line of the detection probe (33) and the central line of the light outlet hole (21) are positioned on the same horizontal line; the signal emission assembly comprises a first emission chamber (11) and a second emission chamber (12) which are communicated with each other, the light source (13) is arranged in the first emission chamber (11), the light barrier (2) is detachably clamped on the connecting surface of the first emission chamber (11) and the second emission chamber (12), a heating circuit capable of increasing the temperature in the second emission chamber (12) is arranged in the second emission chamber (12), and the heating circuit can increase the temperature difference of two sides of the glass test block (5) so as to realize the rapid generation of fog;
the clamping part is positioned between the light barrier (2) and the detection probe (33) and is used for fixing a glass test block (5) to be tested;
and the detection circuit is used for recording the illumination intensity signals acquired by the detection probe (33) and the acquisition time corresponding to each illumination intensity signal.
2. The device for testing antifogging properties of glass coatings according to claim 1, characterized in that: the detection circuit comprises
A light emitting diode circuit electrically connected to a light source (13) of the signal emitting assembly;
the photoresistor circuit is electrically connected with a detection probe (33) of the signal receiving assembly;
the detection signal amplifying circuit receives the detection signal output by the photoresistor circuit and amplifies the detection signal;
the transmitting circuit is connected with the output end of the detection signal amplifying circuit and transmits the amplified detection signal to the main controller;
the timing circuit is used for timing each acquired detection signal and outputting a time signal to the main controller;
and the power supply circuit supplies power to the light emitting diode circuit, the photoresistor circuit, the detection signal amplifying circuit, the transmitting circuit and the timing circuit.
3. The device for testing antifogging properties of glass coatings according to claim 1, characterized in that: the sections of the first emission chamber (11) and the second emission chamber (12) are respectively rectangular, and the first emission chamber and the second emission chamber are connected and fixed into a whole through threads.
4. The device for testing antifogging properties of glass coatings according to claim 1, characterized in that: the signal receiving assembly comprises a bottom plate (31) and a receiving chamber (32), the receiving chamber (32) is rectangular, the detection probe (33) is arranged on the bottom plate (31), and the receiving chamber (32) is communicated with the second transmitting chamber (12).
5. The device for testing antifogging properties of glass coatings according to claim 4, characterized in that: a refrigeration circuit capable of reducing the temperature in the receiving chamber (32) is arranged in the receiving chamber (32).
6. The device for testing antifogging properties of glass coatings according to claim 4, characterized in that: the bottom plate (31) and the receiving chamber (32) are fixedly connected through riveting or screws.
7. The device for testing antifogging properties of glass coatings according to claim 4, characterized in that: the receiving chamber (32) and the second transmitting chamber (12) are respectively provided with an upper clamping part and a lower clamping part which are arranged in an up-down symmetrical mode at the butt joint position, and the clamping part is a vertical slot formed by the upper clamping part and the lower clamping part.
8. The device for testing antifogging properties of glass coatings according to claim 1, characterized in that: the device also comprises an adjusting device which comprises
A guide rail (6);
a moving part (7) which can move linearly along the guide rail (6), wherein the light source (13) is fixedly connected with the moving part (7), and the first emission chamber (11) is fixedly connected with the moving part (7);
an adjusting handle (8) which is provided with an operation part (81) and can drive the moving part (7) to slide along the guide rail (6);
the limiting device is fixed at the end part of the guide rail (6), the adjusting handle (8) is rotatably installed on the limiting device, the moving part (7) is located on one side of the limiting device, the operating part (81) of the adjusting handle (8) is located at the other end of the limiting device, and the limiting device is used for achieving the limiting of the movement of the adjusting handle (8) and the moving part (7) along the horizontal direction.
9. The apparatus for testing antifogging properties of glass coatings according to claim 8, characterized in that: the adjusting handle (8) is a screw rod with a T-shaped section, and the thread part of the adjusting handle (8) is in threaded connection with the moving part (7).
10. The apparatus for testing antifogging properties of glass coatings according to claim 8, characterized in that: the limiting device comprises a stop block (91), a front limiting block (92) and a rear limiting block (93) which are respectively arranged on two sides of the stop block (91).
11. The apparatus for testing antifogging properties of glass coatings according to claim 10, characterized in that: the stop block (91), the front limiting block (92) and the rear limiting block (93) are fixedly connected through pins.
12. The apparatus for testing antifogging properties of glass coatings according to claim 10, characterized in that: the end part of the guide rail (6) is connected with the limiting device through threads or is connected with the limiting device through a pin or is fixed into a whole through welding.
13. The apparatus for testing antifogging properties of glass coatings according to claim 8, characterized in that: the moving part (7) and the light source (13) are fixedly connected through welding or riveting or buckling.
14. The apparatus for testing antifogging properties of glass coatings according to claim 8, characterized in that: the moving part (7) and the first emission chamber (11) are fixedly connected through welding.
15. The device for testing antifogging properties of glass coatings according to claim 1, characterized in that: the number of the light emitting holes (21) is 3-6, the light emitting holes are uniformly distributed along the circumferential direction of the light barrier (2), and correspondingly, the number of the detection probes (33) is the same as that of the light emitting holes (21) and the detection probes are arranged in a one-to-one correspondence manner.
16. The apparatus for testing antifogging properties of glass coatings according to claim 15, characterized in that: the aperture size of the light outlet (21) is matched with the size of the opening of the detection window of the detection probe (33).
17. The device for testing antifogging properties of glass coatings according to claim 1, characterized in that: the glass test block (5) is provided with an anti-fog coating, and one surface of the glass test block (5) with the anti-fog coating faces to the light source (13) of the signal emission assembly.
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Denomination of invention: A device for testing the antifogging performance of glass coating Effective date of registration: 20221123 Granted publication date: 20220121 Pledgee: Bank of China Limited Ningbo Hangzhou Bay New Area sub branch Pledgor: NINGBO FOTILE KITCHEN WARE Co.,Ltd. Registration number: Y2022330003168 |