Ultrasonic transducer testing tool

Abstract

The utility model relates to an ultrasonic transducer testing tool comprising a body, and a channel is formed in the body along the length direction of the body. Through holes are formed in the two ends of the channel, and cover plates are mounted at the through holes; the two sides of the channel are provided with test holes for placing the transducer, and limiting structures are arranged in the test holes and used for fixing the transducer. A side cover is mounted on the outer side of the test hole; the ultrasonic transducer testing tool is simple in structure, effectively fixes the transducer under the condition of ensuring reliability and firmness, reduces material and labor cost, simulates the installation state of the transducer on an ultrasonic flowmeter, improves testing precision, and is simple in structure, convenient to operate and high in practicability. According to the design, testing and assembling are more convenient, the testing damage rate is reduced, the technological process flexibility is improved, and the testing efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ultrasonic accessories, and in particular relates to an ultrasonic transducer testing tool. Background Art

[0002] At present, ultrasonic flow meters on the market are slowly replacing Roots flow meters and mechanical flow meters. Compared with the former two meters, ultrasonic flow meters have the advantages of high precision, small size, low noise, etc.; ultrasonic transducer, as the core component inside the ultrasonic flow meter, occupies a vital position in the entire product. Ultrasonic transducer is a gas medium ultrasonic sensor that uses acoustic matching materials to improve the emission ability of ultrasonic signals in gas media; the utility model aims to solve the problems of single function and low working efficiency of existing test fixtures.

[0003] In view of the above problems, it is necessary to improve them. Utility Model Content

[0004] The purpose of the utility model is to provide an ultrasonic transducer testing tooling with a simple structure, ingenious design, optimized structure, improved process design, improved measurement accuracy, and saved comprehensive use cost.

[0005] In order to achieve the above purpose, the technical solution adopted by this utility model patent is:

[0006] An ultrasonic transducer testing tool comprises a main body, wherein a channel is formed in the main body along its length direction; through holes are arranged at both ends of the channel, and cover plates are installed at the through holes; test holes for placing transducers are arranged on both sides of the channel, and limit structures are arranged in the test holes for fixing the transducers; and side covers are installed outside the test holes.

[0007] As a preferred solution of the utility model, at least one magnetic steel mounting hole for mounting a magnetic steel is provided at the end of the test hole, and correspondingly, an iron sheet mounting hole for mounting an iron sheet is provided at the bottom of the side cover, the magnetic steel mounting hole and the iron sheet mounting hole are arranged correspondingly, and the magnetic steel in the magnetic steel mounting hole and the iron sheet in the iron sheet mounting hole are magnetically attracted to each other to fix the ultrasonic transducer.

[0008] As a preferred solution of the utility model, four magnetic steel mounting holes are provided, which are circumferentially arranged around the test hole, and four iron sheet mounting holes are provided, which are circumferentially arranged around the side cover.

[0009] As a preferred solution of the utility model, a hollow circular hole for the conductor of the transducer to pass through is formed on the side cover.

[0010] As a preferred solution of the utility model, a boss is arranged on the side cover, and the boss is located between the hollow circular hole and the iron sheet mounting hole; the boss is attached to the back of the transducer.

[0011] As a preferred solution of the utility model, a limiting boss is provided on the cover plate, and the limiting boss is installed at the through hole.

[0012] As a preferred solution of the utility model, the limiting boss is provided with a groove, and an O-ring is installed on the groove.

[0013] As a preferred solution of the utility model, a flange plane is formed at the connection between the cover plate and the limiting boss, a mounting plane is formed at the through hole, the cover plate is assembled at the through hole, and the flange plane and the mounting plane fit each other.

[0014] As a preferred solution of the utility model, a guide notch is formed on one side of the flange plane, and correspondingly, a mounting notch is formed on one side of the mounting plane, and when the cover plate is assembled at the through hole, the guide notch and the mounting notch overlap with each other.

[0015] As a preferred solution of the utility model, a limit block is fixedly provided at the bottom of the body along its length direction, and the limit block and the installation notch are on the same horizontal plane.

[0016] The beneficial effects of the utility model are:

[0017] The utility model has a simple structure and is designed to be a kind of ultrasonic transducer test fixture. Under the condition of ensuring reliability and firmness, the transducer is effectively fixed, so that the material and labor costs are reduced, and the installation state of the transducer on the ultrasonic flow meter is simulated, and the test accuracy is improved. The design makes the test assembly more convenient, reduces the test loss rate, improves the flexibility of the process, and improves the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the ultrasonic transducer testing tooling structure of the utility model embodiment;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of an ultrasonic transducer testing tooling according to an embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of an ultrasonic transducer test fixture channel according to an embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of a side cover of an embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of a cover plate according to an embodiment of the utility model;

[0023] Explanation of the accompanying drawings: channel 1, test hole 1-A, magnetic steel mounting hole 1-B, through hole 1-C, limit block 1-D, mounting plane 1-E, side cover 2, iron sheet mounting hole 2-A, boss 2-B, hollow circular hole 2-C, cover plate 3, limit boss 3-A, groove 3-B, flange plane 3-C, guide notch 3-D, transducer 4, wire 4-A, backing 4-B, O-ring 5, mounting notch 6, main body 10. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Example:

[0027] like Figure 1-5 As shown, an ultrasonic transducer testing tool comprises a main body 10, in which a channel 1 is formed along its length direction; through holes 1-C are provided at both ends of the channel 1, and a cover plate 3 is installed at the through hole 1-C; test holes 1-A for placing transducers 4 are provided on both sides of the channel 1, and a limiting structure is provided in the test hole 1-A for fixing the transducer 4; a side cover 2 is installed on the outside of the test hole 1-A; the limiting structure in the test hole 1-A needs to be 0.2-0.4mm larger than the outer size of the ultrasonic transducer; the limiting structure in the test hole 1-A is also a limiting groove, and the transducer 4 is embedded in the limiting groove, and the test hole 1-A and the transducer 4 cooperate with each other to achieve the limiting effect.

[0028] The test hole 1-A of the channel is placed at 45° on the main body of channel 1. This angle simulates the installation angle of the transducer on the ultrasonic flowmeter. At the same time, the channel main body can be designed with different angles to adapt to different needs.

[0029] The utility model has a simple structure and is designed to be a kind of ultrasonic transducer test fixture. Under the condition of ensuring reliability and firmness, the transducer is effectively fixed, so that the material and labor costs are reduced, and the installation state of the transducer on the ultrasonic flow meter is simulated, and the test accuracy is improved. The design makes the test assembly more convenient, reduces the test loss rate, improves the flexibility of the process, and improves the test efficiency.

[0030] At least one magnetic steel mounting hole 1-B for mounting a magnetic steel is provided at the end of the test hole 1-A. Correspondingly, an iron sheet mounting hole 2-A for mounting an iron sheet is provided at the bottom of the side cover 2. The magnetic steel mounting hole 1-B and the iron sheet mounting hole 2-A are arranged correspondingly. The magnetic steel in the magnetic steel mounting hole 1-B and the iron sheet in the iron sheet mounting hole 2-A are magnetically attracted to each other to fix the ultrasonic transducer.

[0031] Specifically, four magnetic steel mounting holes 1-B are provided, which are circumferentially arranged around the test hole 1-A, and four iron sheet mounting holes 2-A are provided, which are circumferentially arranged around the side cover 2; the magnetic steel mounting holes 1-B and the iron sheet mounting holes 2-A are in the same position to ensure that the side cover 2 can be fixed on the channel 1 by magnetic attraction.

[0032] A hollow circular hole 2-C for the wire 4-A of the transducer 4 to pass through is formed on the side cover 2; the hollow circular hole 2-C has two functions: one is to be used for passing the wire (the wire 4-A of the transducer 4); the other is that the back of the transducer is usually called the backing 4-B. Do not apply too much force to the backing 4-B when the transducer is working and installed. Applying too much force will cause excessive noise at the bottom of the transducer, thereby affecting the test accuracy, so this place will be avoided during installation and testing.

[0033] A boss 2-B is provided on the side cover 2, and the boss 2-B is located between the hollow circular hole 2-C and the iron sheet mounting hole 2-A; the boss 2-B is attached to the back of the transducer 4; through the adsorption of the magnetic steel and the iron sheet, the side cover 2 will be fixed on the channel 1, and the boss 2-B will be attached to the back of the transducer 4 while avoiding the backing 4-B, thereby achieving the purpose of fixing the transducer 4.

[0034] A limiting boss 3-A is provided on the cover plate 3, and the limiting boss 3-A is installed at the through hole 1-C. A groove 3-B is provided on the limiting boss 3-A, and an O-ring 5 is installed on the groove 3-B; the channel 1 and the cover plate 3 form a sealing effect through the O-ring 5 on the boss 3-A.

[0035] A flange plane 3-C is formed at the connection between the cover plate 3 and the limiting boss 3-A, and a mounting plane 1-E is formed at the through hole 1-C. The cover plate 3 is assembled at the through hole 1-C, and the flange plane 3-C and the mounting plane 1-E fit each other.

[0036] A guide notch 3-D is formed on one side of the flange plane 3-C, and correspondingly, a mounting notch 6 is formed on one side of the mounting plane 1-E. When the cover plate 3 is assembled at the through hole 1-C, the guide notch 3-D and the mounting notch 6 overlap with each other, indicating that the installation of the cover plate 3 and the through hole 1-C is completed.

[0037] A limit block 1-D is fixedly provided at the bottom of the body 10 along its length direction, and the limit block 1-D is on the same horizontal plane as the installation notch 6; the limit block 1-D is used to place the entire test fixture, which is not easy to roll and cause errors in measurement accuracy.

[0038] Furthermore, after the cover plate 3 is installed on the channel body, a closed test chamber is formed inside the channel, which can filter out the influence of airflow on the test, thereby testing the "zero drift" function of the transducer. On the contrary, when it is necessary to test the air flow performance of the transducer, the cover plate can be removed.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0040] Although this article uses more of the following terms: channel 1, test hole 1-A, magnetic steel mounting hole 1-B, through hole 1-C, limit block 1-D, mounting plane 1-E, side cover 2, iron sheet mounting hole 2-A, boss 2-B, hollow circular hole 2-C, cover plate 3, limit boss 3-A, groove 3-B, flange plane 3-C, guide notch 3-D, transducer 4, wire 4-A, O-ring 5, mounting notch 6, body 10, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An ultrasonic transducer testing tool, characterized in that: The invention comprises a body (10), wherein a channel (1) is formed in the body (10) along its length direction; through holes (1-C) are provided at both ends of the channel (1), and a cover plate (3) is installed at the through hole (1-C); test holes (1-A) for placing a transducer (4) are provided on both sides of the channel (1), and a side cover (2) is installed outside the test hole (1-A).

2. The ultrasonic transducer testing tool according to claim 1, characterized in that: At least one magnetic steel mounting hole (1-B) for mounting a magnetic steel is provided at the end of the test hole (1-A); correspondingly, an iron sheet mounting hole (2-A) for mounting an iron sheet is provided at the bottom of the side cover (2); the magnetic steel mounting hole (1-B) and the iron sheet mounting hole (2-A) are arranged correspondingly; the magnetic steel in the magnetic steel mounting hole (1-B) and the iron sheet in the iron sheet mounting hole (2-A) are mutually magnetically attracted and cooperated to fix the ultrasonic transducer.

3. The ultrasonic transducer testing tool according to claim 2, characterized in that: The magnetic steel mounting holes (1-B) are provided in four directions and are arranged circumferentially around the test hole (1-A); the iron sheet mounting holes (2-A) are provided in four directions and are arranged circumferentially around the side cover (2).

4. The ultrasonic transducer testing tool according to claim 1, characterized in that: The side cover (2) is formed with a hollow circular hole (2-C) for the conductor (4-A) of the transducer (4) to pass through.

5. The ultrasonic transducer testing tool according to claim 1, characterized in that: The side cover (2) is provided with a boss (2-B), and the boss (2-B) is located between the hollow circular hole (2-C) and the iron sheet mounting hole (2-A); the boss (2-B) is attached to the back of the transducer (4).

6. The ultrasonic transducer testing tool according to claim 1, characterized in that: The cover plate (3) is provided with a limiting boss (3-A), and the limiting boss (3-A) is installed at the through hole (1-C).

7. The ultrasonic transducer testing tool according to claim 6, characterized in that: The limiting boss (3-A) is provided with a groove (3-B), and an O-ring (5) is installed on the groove (3-B).

8. The ultrasonic transducer testing tool according to claim 6, characterized in that: A flange plane (3-C) is formed at the connection between the cover plate (3) and the limiting boss (3-A), and a mounting plane (1-E) is formed at the through hole (1-C). The cover plate (3) is assembled at the through hole (1-C), and the flange plane (3-C) and the mounting plane (1-E) are in contact with each other.

9. The ultrasonic transducer testing tool according to claim 8, characterized in that: A guide notch (3-D) is formed on one side of the flange plane (3-C), and correspondingly, a mounting notch (6) is formed on one side of the mounting plane (1-E); when the cover plate (3) is assembled at the through hole (1-C), the guide notch (3-D) and the mounting notch (6) overlap with each other.

10. The ultrasonic transducer testing tool according to claim 9, characterized in that: A limit block (1-D) is fixedly provided at the bottom of the body (10) along its length direction, and the limit block (1-D) and the installation notch (6) are on the same horizontal plane.

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