Hemispherical resonator gyro harmonic oscillator water-based fluorescent penetrant flaw detection agent and flaw detection method

Abstract

The invention provides a water-based fluorescent penetrant flaw detection agent for a hemispherical resonator gyroscope harmonic oscillator and a flaw detection method, and the water-based fluorescent penetrant flaw detection agent for the hemispherical resonator gyroscope harmonic oscillator is prepared from the following raw materials in parts by weight: 40-80 parts of deionized water, 10-60 parts of 1, 2-propylene glycol, 5-10 parts of lauryl sodium sulfate and 0.2-0.5 part of fluorescent dye. According to the invention, the water-based fluorescent dye is used, so that the pollution to the environment and the harm to operators caused by using an organic solvent are avoided; meanwhile, the viscosity and the surface tension of the solution of the water-based fluorescent penetrant flaw detection agent can be adjusted by adjusting the ratio of the surfactant SDS to the aid 1, 2-propylene glycol, so that the requirements on the detection sensitivity and the accuracy under different working conditions can be met.

Description

Technical Field

[0001] The invention belongs to the technical field of hemispherical resonator product preparation, and in particular relates to a water-based fluorescent penetrant flaw detection agent for a hemispherical resonator gyroscope resonator and a flaw detection method. Background Art

[0002] The hemispherical resonator gyroscope is a new type of vibrating gyroscope that uses the standing wave precession effect of the hemispherical resonator to sense the rotation of the base. Its vibration sensitive component is the hemispherical resonator. The principle of the hemispherical resonator requires that the hemispherical resonator is a completely symmetrical and uniform resonator, and the isotropy of the resonator is very high. The hemispherical resonator is made of quartz glass material by precision grinding. During the processing, the surface damage such as scratches and microcracks may appear on the surface of the hemispherical resonator, which will cause the circumferential uniformity of the resonator to change, and present vibration frequency differences at different angles, that is, frequency cracking, which will further affect the standing wave control accuracy. Therefore, efficient and accurate surface damage detection methods are crucial to the improvement of the key performance of the hemispherical resonator and the engineering application of the hemispherical resonator. The traditional flaw detection method is to use a high-magnification microscope for direct observation. Although this method has high accuracy, it is inefficient, and it is difficult to inspect the complex curved surface of the resonator, which consumes a lot of manpower and time. It is not conducive to the mass industrial production of hemispherical resonator, and new high-efficiency flaw detection methods are urgently needed. In the industrial field, a relatively complete non-destructive testing method has been developed for surface damage detection of complex-shaped workpieces, mainly including penetrant testing, radiographic testing, ultrasonic testing, etc. The above-mentioned testing methods are widely used in various metal parts and materials such as ceramics and plastics. There is still a lack of targeted research on high-precision quartz glass workpieces represented by hemispherical resonators. Due to the complex shape of the hemispherical resonator and the extremely small size of the surface damage, high detection accuracy is required. At present, the more suitable non-destructive testing method is penetrant testing.

[0003] The basic principle of penetrant testing is the capillary phenomenon of liquids. A penetrant testing agent with a specific composition ratio is applied to the surface of the workpiece to be tested or is soaked in the workpiece for a certain period of time. The penetrant testing agent will penetrate into the tiny scratches and cracks on the surface of the workpiece due to the capillary phenomenon. At this time, the workpiece to be tested is cleaned. In the absence of over-washing, the penetrant testing agent that has penetrated into the surface damage layer of the workpiece will remain in the surface damage, thereby indicating the area where the surface damage exists. According to the different color development methods, penetrant testing can be divided into direct coloring flaw detection and fluorescent color development flaw detection. The former can be directly observed with simple steps, while the latter requires the use of color developers or ultraviolet lamps for color development and observation. The steps are more complicated but the color development effect is better and the detection accuracy is high. According to the different solvent types, penetrant testing agents can be divided into two types: water-based and oil-based. The former uses water as a solvent, which has more advantages in safety and environmental protection, but due to the large surface tension and low viscosity of water, the penetration effect is poor. The latter uses organic solvents, which have good solubility and good penetration effect, but most organic solvents are toxic and have adverse effects on safety and environmental protection. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0005] According to one aspect of the present invention, a hemispherical resonator gyroscope resonator water-based fluorescent penetrant flaw detector is provided. The hemispherical resonator gyroscope resonator water-based fluorescent penetrant flaw detector is prepared from the following raw materials in parts by weight: 40 to 80 parts of deionized water, 10 to 60 parts of 1,2-propylene glycol, 5 to 10 parts of sodium dodecyl sulfate, and 0.2 to 0.5 parts of fluorescent dye.

[0006] Furthermore, the hemispherical resonator gyroscope resonator water-based fluorescent penetrant flaw detection agent is prepared from the following raw materials in parts by weight: 50 to 70 parts of deionized water, 20 to 30 parts of 1,2-propylene glycol, 7 to 8 parts of sodium dodecyl sulfate, and 0.3 to 0.5 parts of fluorescent dye.

[0007] According to another aspect of the present invention, a method for detecting a hemispherical resonant gyroscope resonator is provided. The method for detecting a hemispherical resonant gyroscope resonator uses the hemispherical resonant gyroscope resonator water-based fluorescent penetrant flaw detection agent as described above to perform surface flaw detection on the hemispherical resonator gyroscope resonator.

[0008] Furthermore, the hemispherical resonant gyroscope resonator flaw detection method comprises the following steps:

[0009] S1, equipped with hemispherical resonant gyro resonator water-based fluorescent penetrant flaw detection agent:

[0010] S11, mixing the following raw materials in proportion by weight: 50-70 parts of deionized water, 20-30 parts of 1,2-propylene glycol, 7-8 parts of sodium dodecyl sulfate, and 0.3-0.5 parts of fluorescent dye, and stirring at room temperature for a certain period of time;

[0011] S12, filtering the mixture obtained in step S11 to obtain a hemispherical resonant gyro resonator water-based fluorescent penetrant flaw detection agent;

[0012] S2, use the configured hemispherical resonator gyroscope resonator water-based fluorescent penetrant flaw detection agent to perform surface flaw detection on the hemispherical resonator gyroscope resonator:

[0013] S21, stirring the hemispherical resonant gyro resonator water-based fluorescent penetrant flaw detection agent until it is uniform and has no stratification;

[0014] S22, immersing the hemispherical resonator to be inspected into a water-based fluorescent penetrant flaw detection agent for a certain period of time;

[0015] S23, taking out the immersed hemispherical resonator, and cleaning and drying it;

[0016] S24, placing the hemispherical resonator under ultraviolet light, and determining the surface damage layer according to the fluorescence position;

[0017] S25, cleaning the hemispherical resonator.

[0018] Furthermore, in step S23, after the hemispherical resonator in S22 is taken out from the water-based fluorescent penetrant flaw detection agent, it is rinsed with deionized water for 3 times, each time for 1 to 3 minutes, and then dried.

[0019] Further, in step S25, the hemispherical resonator in S24 is rinsed with clean water for 6 to 8 times, acid-washed, then rinsed with deionized water for 6 to 8 times, and dried.

[0020] Furthermore, after step S25, step S26 is performed to recover the water-based fluorescent penetrant flaw detection agent in S22.

[0021] By applying the technical solution of the present invention, a water-based fluorescent penetrant flaw detection agent and a flaw detection method for a hemispherical resonator gyroscope are provided. The use of water-based fluorescent dyes avoids the pollution of the environment and the harm to operators caused by the use of organic solvents. At the same time, the water-based fluorescent penetrant flaw detection agent can adjust the viscosity and surface tension of the solution by adjusting the ratio of the surfactant SDS and the auxiliary agent 1,2-propylene glycol, and can meet the requirements for detection sensitivity and accuracy under different working conditions. Compared with traditional methods, the hemispherical resonator gyroscope flaw detection method of the present invention greatly improves the detection efficiency, reduces manpower and practical costs, and at the same time ensures high sensitivity and accuracy of flaw detection, which is conducive to the mass industrial production of hemispherical resonators. Compared with the prior art, the technical solution of the present invention can solve the technical problem that the hemispherical resonator gyroscope flaw detection method in the prior art cannot meet the performance requirements and safety requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The included drawings are used to provide a further understanding of the embodiments of the present invention, which constitute a part of the specification, are used to illustrate the embodiments of the present invention, and together with the text description, explain the principles of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A schematic flow chart of a method for flaw detection of a hemispherical resonator gyroscope resonator provided according to a specific embodiment of the present invention is shown. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The technical solutions in the embodiments of the present invention will be clearly and completely described 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, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0026] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values.

[0027] According to one aspect of the present invention, a water-based fluorescent penetrant flaw detector for a hemispherical resonator gyroscope is provided. The flaw detector is prepared from the following raw materials in parts by weight: 40 to 80 parts of deionized water, 10 to 60 parts of 1,2-propylene glycol, 5 to 10 parts of sodium dodecyl sulfate (SDS), and 0.2 to 0.5 parts of a fluorescent dye.

[0028] By applying this configuration, a water-based fluorescent penetrant flaw detector for a hemispherical resonant gyroscope resonator is provided. The flaw detector is a water-based fluorescent penetrant flaw detector, which uses sodium dodecyl sulfate as a surfactant and 1,2-propylene glycol as an auxiliary agent, thereby improving the performance of the flaw detector and achieving high safety and low environmental hazards while meeting performance requirements.

[0029] Furthermore, the hemispherical resonator gyroscope resonator water-based fluorescent penetrant flaw detection agent of the present invention is prepared from the following raw materials in parts by weight: 50 to 70 parts of deionized water, 20 to 30 parts of 1,2-propylene glycol, 7 to 8 parts of sodium dodecyl sulfate (SDS), and 0.3 to 0.5 parts of fluorescent dye.

[0030] As a specific embodiment of the present invention, red fluorescent dye can be used for color development.

[0031] The present invention uses water-based fluorescent dyes, thereby avoiding the pollution of the environment and the harm to operators caused by the use of organic solvents; at the same time, the viscosity and surface tension of the solution can be adjusted by adjusting the ratio of the surfactant SDS and the auxiliary agent 1,2-propylene glycol, thereby meeting the requirements for detection sensitivity and accuracy under different working conditions.

[0032] According to another aspect of the present invention, a method for detecting a hemispherical resonant gyroscope resonator is provided. The method for detecting a hemispherical resonant gyroscope resonator uses the hemispherical resonant gyroscope resonator water-based fluorescent penetrant flaw detection agent as described above to perform surface flaw detection on the hemispherical resonator gyroscope resonator.

[0033] The hemispherical resonant gyro resonator flaw detection method of the present invention can improve flaw detection efficiency, reduce manpower and practical costs, and at the same time has high safety and can reduce environmental hazards.

[0034] Specifically, Figure 1 As shown, the hemispherical resonant gyro resonator flaw detection method of the present invention comprises the following steps:

[0035] S1, equipped with hemispherical resonant gyro resonator water-based fluorescent penetrant flaw detection agent:

[0036] S11, mixing the following raw materials in weight proportions: 50-70 parts of deionized water, 20-30 parts of 1,2-propylene glycol, 7-8 parts of sodium dodecyl sulfate (SDS), and 0.3-0.5 parts of fluorescent dye, and stirring at room temperature for a certain period of time;

[0037] S12, filtering the mixture obtained in step S11 to obtain a hemispherical resonant gyro resonator water-based fluorescent penetrant flaw detection agent;

[0038] S2, use the configured hemispherical resonator gyroscope resonator water-based fluorescent penetrant flaw detection agent to perform surface flaw detection on the hemispherical resonator gyroscope resonator:

[0039] S21, stirring the hemispherical resonant gyro resonator water-based fluorescent penetrant flaw detection agent until it is uniform and has no stratification;

[0040] S22, immersing the hemispherical resonator to be inspected into a water-based fluorescent penetrant flaw detection agent for a certain period of time;

[0041] S23, taking out the immersed hemispherical resonator, and cleaning and drying it;

[0042] S24, placing the hemispherical resonator under ultraviolet light, and determining the surface damage layer according to the fluorescence position;

[0043] S25, cleaning the hemispherical resonator.

[0044] As a specific embodiment of the present invention, in step S23, after the hemispherical resonator in step S22 is taken out from the water-based fluorescent penetrant flaw detection agent, it is rinsed with deionized water for 3 times, each time for 1 to 3 minutes, and then dried.

[0045] In step S25, the hemispherical resonator in step S24 is rinsed with clean water for 6 to 8 times, acid-washed, then rinsed with deionized water for 6 to 8 times, and dried.

[0046] After step S25, the water-based fluorescent penetrant flaw detection agent in step S22 can also be recycled to reduce costs.

[0047] The hemispherical resonator gyroscope resonator flaw detection method of the present invention uses a new water-based fluorescent penetrant flaw detection agent to detect surface damage of the hemispherical resonator. Compared with the traditional method, the detection efficiency is greatly improved, the manpower and practical costs are reduced, and at the same time, the high sensitivity and accuracy of the flaw detection are guaranteed, which is conducive to the mass industrial production of hemispherical resonators.

[0048] In order to have a further understanding of the present invention, the flaw detection method of the hemispherical resonator gyroscope resonator of the present invention is described in detail below in conjunction with specific embodiments.

[0049] Embodiment 1:

[0050] A method for flaw detection of a hemispherical resonant gyroscope resonator comprises the following steps:

[0051] S1, equipped with hemispherical resonant gyro resonator water-based fluorescent penetrant flaw detection agent:

[0052] S11, mix the following raw materials by weight: 60 parts of deionized water, 25 parts of 1,2-propylene glycol, 8 parts of SDS, and 0.3 parts of fluorescent red dye, put them into a beaker in sequence, seal the beaker, and stir at room temperature for 2 hours using a magnetic stirrer;

[0053] S12, filtering the mixture obtained in step S11 through a 200-mesh sieve to obtain a water-based fluorescent penetrant flaw detection agent; pouring the water-based fluorescent penetrant flaw detection agent into a storage tank and sealing it for storage;

[0054] S2, use the configured hemispherical resonator gyroscope resonator water-based fluorescent penetrant flaw detection agent to perform surface flaw detection on the hemispherical resonator gyroscope resonator:

[0055] S21, when in use, pour the water-based fluorescent penetrant flaw detection agent prepared in step S12 into a container, and stir with a stirrer until the solution has a uniform color and no stratification;

[0056] S22, immersing the hemispherical resonator to be inspected in the water-based fluorescent penetrant flaw detection agent for at least 30 minutes;

[0057] S23, taking out the hemispherical resonator in step S22 from the water-based fluorescent penetrant flaw detection agent, rinsing it with deionized water for 3 times, each time for 1 minute, and drying it;

[0058] S24, placing the hemispherical resonator in step S23 under ultraviolet light, and observing with a microscope, so as to determine the surface damage layer according to the position of the red fluorescence;

[0059] S25, after the observation is completed, the hemispherical resonator in step S24 is rinsed with clean water for 8 times, acid-washed, then rinsed with deionized water for 8 times, and dried;

[0060] S26, recovering the water-based fluorescent penetrant flaw detection agent in step S22.

[0061] Example 2

[0062] A method for flaw detection of a hemispherical resonant gyroscope resonator comprises the following steps:

[0063] S1, equipped with hemispherical resonant gyro resonator water-based fluorescent penetrant flaw detection agent:

[0064] S11, mix the following raw materials by weight: 50 parts of deionized water, 30 parts of 1,2-propylene glycol, 8 parts of SDS, and 0.4 parts of fluorescent red dye, put them into a beaker in sequence, seal the beaker, and stir at room temperature for 2 hours using a magnetic stirrer;

[0065] S12, filtering the mixture obtained in step S11 through a 200-mesh sieve to obtain a water-based fluorescent penetrant flaw detection agent; pouring the water-based fluorescent penetrant flaw detection agent into a storage tank and sealing it for storage;

[0066] S2, use the configured hemispherical resonator gyroscope resonator water-based fluorescent penetrant flaw detection agent to perform surface flaw detection on the hemispherical resonator gyroscope resonator:

[0067] S21, when in use, pour the water-based fluorescent penetrant flaw detection agent prepared in step S12 into a container, and stir with a stirrer until the solution has a uniform color and no stratification;

[0068] S22, immersing the hemispherical resonator to be inspected in the water-based fluorescent penetrant flaw detection agent for at least 30 minutes;

[0069] S23, taking out the hemispherical resonator in step S22 from the water-based fluorescent penetrant flaw detection agent, rinsing it with deionized water for 3 times, each time for 2 minutes, and drying it;

[0070] S24, placing the hemispherical resonator in step S23 under ultraviolet light, and observing with a microscope, so as to determine the surface damage layer according to the position of the red fluorescence;

[0071] S25, after the observation is completed, the hemispherical resonator in step S24 is rinsed with clean water for 7 times, acid-washed, then rinsed with deionized water for 7 times, and dried;

[0072] S26, recovering the water-based fluorescent penetrant flaw detection agent in step S22.

[0073] Example 3

[0074] A method for flaw detection of a hemispherical resonant gyroscope resonator comprises the following steps:

[0075] S1, equipped with hemispherical resonant gyro resonator water-based fluorescent penetrant flaw detection agent:

[0076] S11, mixing the raw materials according to weight ratio: 70 parts of deionized water, 20 parts of 1,2-propylene glycol, 7 parts of SDS, and 0.5 parts of fluorescent red dye, sequentially put them into a beaker, seal the beaker, and stir at room temperature for 2 hours using a magnetic stirrer;

[0077] S12, filtering the mixture obtained in step S11 through a 200-mesh sieve to obtain a water-based fluorescent penetrant flaw detection agent; pouring the water-based fluorescent penetrant flaw detection agent into a storage tank and sealing it for storage;

[0078] S2, use the configured hemispherical resonator gyroscope resonator water-based fluorescent penetrant flaw detection agent to perform surface flaw detection on the hemispherical resonator gyroscope resonator:

[0079] S21, when in use, pour the water-based fluorescent penetrant flaw detection agent prepared in step S12 into a container, and stir with a stirrer until the solution has a uniform color and no stratification;

[0080] S22, immersing the hemispherical resonator to be inspected in the water-based fluorescent penetrant flaw detection agent for at least 30 minutes;

[0081] S23, taking out the hemispherical resonator in step S22 from the water-based fluorescent penetrant flaw detection agent, rinsing it with deionized water for 3 times, each time for 1 minute, and drying it;

[0082] S24, placing the hemispherical resonator in step S23 under ultraviolet light, and observing with a microscope, so as to determine the surface damage layer according to the position of the red fluorescence;

[0083] S25, after the observation is completed, the hemispherical resonator in step S24 is rinsed with clean water for 6 times, acid-washed, then rinsed with deionized water for 6 times, and dried;

[0084] S26, recovering the water-based fluorescent penetrant flaw detection agent in step S22.

[0085] In summary, the present invention provides a water-based fluorescent penetrant flaw detection agent and a flaw detection method for a hemispherical resonator gyroscope resonator, which uses a water-based fluorescent dye to avoid the pollution of the environment and the harm to the operator by using an organic solvent; at the same time, the water-based fluorescent penetrant flaw detection agent can adjust the viscosity and surface tension of the solution by adjusting the ratio of the surfactant SDS and the auxiliary agent 1,2-propylene glycol, and can meet the requirements for detection sensitivity and accuracy under different working conditions. Compared with the traditional method, the hemispherical resonator gyroscope resonator flaw detection method of the present invention greatly improves the detection efficiency, reduces the manpower and practical costs, and at the same time ensures the high sensitivity and accuracy of the flaw detection, which is conducive to the mass industrial production of hemispherical resonators.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. 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 hemispherical resonant gyro resonator water-based fluorescent penetrant flaw detection agent, characterized in that: The hemispherical resonator gyroscope resonator water-based fluorescent penetrant flaw detection agent is prepared from the following raw materials in parts by weight: 40 to 80 parts of deionized water, 10 to 60 parts of 1,2-propylene glycol, 5 to 10 parts of sodium dodecyl sulfate, and 0.2 to 0.5 parts of fluorescent dye.

2. The hemispherical resonator gyroscope resonator water-based fluorescent penetrant flaw detection agent according to claim 1, characterized in that: The hemispherical resonator gyroscope resonator water-based fluorescent penetrant flaw detection agent is prepared from the following raw materials in parts by weight: 50-70 parts of deionized water, 20-30 parts of 1,2-propylene glycol, 7-8 parts of sodium dodecyl sulfate, and 0.3-0.5 parts of fluorescent dye.

3. A method for flaw detection of a hemispherical resonant gyroscope resonator, characterized in that: The hemispherical resonator gyroscope resonator flaw detection method uses the hemispherical resonator gyroscope resonator water-based fluorescent penetrant flaw detection agent as claimed in claims 1 and 2 to perform surface flaw detection on the hemispherical resonator gyroscope resonator.

4. The method for flaw detection of a hemispherical resonator gyroscope according to claim 3, characterized in that: The method for detecting the resonator of a hemispherical resonant gyroscope comprises the following steps: S1, equipped with hemispherical resonant gyro resonator water-based fluorescent penetrant flaw detection agent: S11, mixing the following raw materials in proportion by weight: 50-70 parts of deionized water, 20-30 parts of 1,2-propylene glycol, 7-8 parts of sodium dodecyl sulfate, and 0.3-0.5 parts of fluorescent dye, and stirring at room temperature for a certain period of time; S12, filtering the mixture obtained in step S11 to obtain a hemispherical resonant gyro resonator water-based fluorescent penetrant flaw detection agent; S2, use the configured hemispherical resonator gyroscope resonator water-based fluorescent penetrant flaw detection agent to perform surface flaw detection on the hemispherical resonator gyroscope resonator: S21, stirring the hemispherical resonant gyro resonator water-based fluorescent penetrant flaw detection agent until it is uniform and has no stratification; S22, immersing the hemispherical resonator to be inspected into a water-based fluorescent penetrant flaw detection agent for a certain period of time; S23, taking out the immersed hemispherical resonator, and cleaning and drying it; S24, placing the hemispherical resonator under ultraviolet light, and determining the surface damage layer according to the fluorescence position; S25, cleaning the hemispherical resonator.

5. The method for flaw detection of a hemispherical resonator gyroscope according to claim 4, characterized in that: In step S23, after the hemispherical resonator in S22 is taken out from the water-based fluorescent penetrant flaw detection agent, it is rinsed with deionized water for 3 times, each time for 1 to 3 minutes, and then dried.

6. The method for flaw detection of a hemispherical resonator gyroscope according to claim 4, characterized in that: In step S25, the hemispherical resonator in S24 is rinsed with clean water for 6 to 8 times, acid-washed, then rinsed with deionized water for 6 to 8 times, and dried.

7. The method for flaw detection of a hemispherical resonator gyroscope according to claim 4, characterized in that: After step S25, step S26 is executed to recover the water-based fluorescent penetrant flaw detection agent in S22.

Images