Waveguide method testing device based on voltage-controlled motor driving

Abstract

A waveguide method testing device based on voltage-controlled motor driving comprises a pressure sensor (1), a supporting piece (2), a flourishing probe (3), a waveguide converter (4), a left waveguide (5), a pin groove (6), a guide rail (7), a sample clamp (8), a to-be-tested sample (9), a pin (10), a right waveguide (11), a motor driving device (12) and a single chip microcomputer (13). The pressure sensor (1), the supporting piece (2), the Kahu probe (3), the waveguide converter (4) and the left waveguide (5) are connected in sequence; the right waveguide (11), the waveguide converter (4), the supporting piece (2) and the motor driving device (12) are connected in sequence; the right waveguide (11) and the left waveguide (5) are arranged on the guide rail (7); the motor driving device (12) and the pressure sensor (1) are controlled by the single-chip microcomputer (13). The sample clamp (8) is used for installing a to-be-tested sample (9), and the to-be-tested sample (9) is positioned through a pin (10).

Description

Technical Field

[0001] The invention discloses a waveguide method test device based on voltage-controlled motor drive, which relates to the field of electromagnetic characteristic parameter testing, and in particular to a waveguide method test system. Background Art

[0002] With the development of society and the advancement of science and technology, the electromagnetic parameter test of materials is becoming increasingly important in military and civilian applications. Among them, the waveguide method has attracted much attention in the electromagnetic parameter test of materials due to its wide bandwidth, simple test and convenient sample preparation. However, in traditional technology, the waveguide method is usually operated manually, which will have the following problems: 1. There is a gap between the sample fixture and the waveguide during the test. In addition to causing electromagnetic leakage, it will also cut off the distribution of the power lines of the waveguide mode during propagation, so it has a certain impact on the test accuracy. Therefore, the degree of closure between the sample fixture and the waveguide is related to the test accuracy of the waveguide method, and the inconsistent closure state will also affect the test repeatability of the waveguide method. 2. Usually the test fixture and the sample to be tested are symmetrical structures, which makes it difficult for operators to distinguish the installation direction of the test fixture. Due to the processing differences and structural problems of the sample to be tested, if the state of the sample for repeated testing cannot be guaranteed to be consistent, the test results will be different, so the test repeatability is also difficult to guarantee. Based on the above analysis, it is found that the traditional waveguide method test has test repeatability problems, which to a certain extent affects the test accuracy of this method. Summary of the invention

[0003] The purpose of the present invention is to provide a waveguide method testing device based on a voltage-controlled motor drive to address the repeatability problem existing in the existing waveguide method in electromagnetic parameter testing. The device can achieve a tight closure between the waveguide and the test fixture during testing and the closing state is consistent during repeated tests. At the same time, it can also ensure that the installation direction of the test fixture is consistent each time it is installed, thereby ensuring test repeatability and improving the test accuracy of the waveguide method.

[0004] To achieve the above-mentioned invention object, the technical solution of the present invention is as follows: a waveguide method test device based on voltage-controlled motor drive, as shown in the attached Figure 1As shown, it includes a pressure sensor (1), a support (2), a Huarong probe (3), a wave converter (4), a left waveguide (5), a pin groove (6), a guide rail (7), a sample fixture (8), a sample to be tested (9), a pin (10), a right waveguide (11), a motor drive device (12) and a single chip microcomputer (13). The pressure sensor (1), the support (2), the Huarong probe (3), the wave converter (4) and the left waveguide (5) are fixedly connected in sequence, the right waveguide (11), the wave converter (4), the support (2) and the motor drive device (12) are fixedly connected in sequence, the single chip microcomputer (13) establishes communication with the pressure sensor (1) and the motor drive device (12), the left waveguide (5) and the right waveguide (11) are slidably mounted on the guide rail (7), and the single chip microcomputer (13) is connected to the pressure sensor (1) and the motor drive device (12). The machine (13) controls the motor drive device (12) to drive the right waveguide (11) to move forward to the left until the sample fixture (8) passes through the pin (10) and closes with the left waveguide (5) and the right waveguide (11). At this time, the pressure sensor (1) can receive the pressure from the right waveguide (11) and transmit the data to the single-chip microcomputer (13) for feedback in a timely manner. When the pressure reaches the threshold, the single-chip microcomputer (13) promptly controls the motor drive device (12) to stop moving forward, so as to ensure that the state of the waveguide and the sample fixture is consistent each time they are closed.

[0005] As a preferred embodiment, the Huarong probe (3) has good elastic deformation. When the motor drive device (12) applies pressure to the left, the buffering effect of the Huarong probe (3) can ensure that the waveguide is not tilted. At the same time, the elastic stress of the Huarong probe (3) can make the sample fixture (8) and the left and right waveguides tightly closed, which is beneficial to the waveguide method test of the sample.

[0006] As a preferred method, Figure 2 and attached Figure 3 As shown, the pins (10) and the pin slots (6) are asymmetrically distributed, which has the effect of making it easy to distinguish the installation direction of the sample fixture, thereby ensuring that the state of the sample is consistent during testing.

[0007] As a preferred method, Figure 2 As shown, the Huarong probes (3) are symmetrically distributed around the pressure sensor (1) to ensure that the pressure sensor (1) is evenly stressed.

[0008] As a preferred method, Figure 2 As shown, the front end of the support member (2) is fixedly connected to the flange of the wave converter (4), and the rear end force-bearing part cannot contact the wave converter (4), so that the wave converter (4) is protected from pressure damage.

[0009] As a preferred embodiment, the sample to be tested (9) is a non-gyromagnetic solid material, the thickness of which is consistent with the thickness of the sample fixture (8), and is strictly implemented in accordance with the GBT35679-2017 standard.

[0010] The waveguide method test device based on voltage-controlled motor drive provided by the present invention has the following characteristics and beneficial effects: First, the pressure feedback method is adopted to ensure that the applied pressure is consistent during repeated tests, thereby ensuring that the closed state of the test fixture and the waveguide is consistent, which is conducive to improving the test repeatability;

[0011] Second, the elasticity of the Huarong probe can buffer the pressure on the waveguide during pushing, preventing the waveguide from deforming due to excessive pressure. At the same time, the elastic strain of the Huarong probe can also make the waveguide fit more closely with the test fixture, which is conducive to waveguide method testing;

[0012] 3. Due to the asymmetric position of the waveguide pins, the test direction of the sample fixture can be distinguished, further ensuring the test repeatability of the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 It is a structural schematic diagram of a waveguide method test device based on voltage-controlled motor drive;

[0014] Attached Figure 2 Schematic diagram of the installation of the waveguide, sample fixture, support and pressure sensor;

[0015] Attached Figure 3 is a schematic diagram of the structure of the sample fixture;

[0016] Attached Figure 4 This is an installation example diagram of a waveguide method test device based on voltage-controlled motor drive;

[0017] Among them, in the attached Figure 1 In the figure, (1) is the pressure sensor, (2) is the support, (3) is the Huarong probe, (4) is the wave converter, (5) is the left waveguide, (6) is the pin hole, (7) is the guide rail, (8) is the sample fixture, (9) is the sample to be tested, (10) is the pin, (11) is the right waveguide, (12) is the motor drive device, (13) is the single chip microcomputer, and (14) is the base; in the attached Figure 4 In the figure, (15) is a baffle. DETAILED DESCRIPTION

[0018] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0019] A waveguide method test device based on voltage-controlled motor drive, as shown in the attached Figure 1As shown, it includes a pressure sensor (1), a support (2), a Huarong probe (3), a wave converter (4), a left waveguide (5), a pin groove (6), a guide rail (7), a sample fixture (8), a sample to be tested (9), a pin (10), a right waveguide (11), a motor drive device (12) and a single chip microcomputer (13). The pressure sensor (1), the support (2), the Huarong probe (3), the wave converter (4) and the left waveguide (5) are fixedly connected in sequence, the right waveguide (11), the wave converter (4), the support (2) and the motor drive device (12) are fixedly connected in sequence, the single chip microcomputer (13) establishes communication with the pressure sensor (1) and the motor drive device (12), the left waveguide (5) and the right waveguide (11) are slidably mounted on the guide rail (7), and the single chip microcomputer (13) is connected to the pressure sensor (1) and the motor drive device (12). The machine (13) controls the motor drive device (12) to drive the right waveguide (11) to move forward to the left until the sample fixture (8) passes through the pin (10) and closes with the left waveguide (5) and the right waveguide (11). At this time, the pressure sensor (1) can receive the pressure from the right waveguide (11) and transmit the data to the single-chip microcomputer (13) for feedback in a timely manner. When the pressure reaches the threshold, the single-chip microcomputer (13) promptly controls the motor drive device (12) to stop moving forward, so as to ensure that the state of the waveguide and the sample fixture is consistent each time they are closed.

[0020] Furthermore, the Huarong probe (3) has good elastic deformation. When the motor drive device (12) applies pressure to the left, the buffering effect of the Huarong probe (3) can ensure that the waveguide is not tilted. At the same time, the elastic stress of the Huarong probe 3 can make the sample fixture (8) and the left and right waveguides tightly closed, which is beneficial to the waveguide method test of the sample.

[0021] Furthermore, as attached Figure 2 and attached Figure 3 As shown, the pins (10) and the pin slots (6) are asymmetrically distributed, which has the effect of making it easy to distinguish the installation direction of the sample fixture, thereby ensuring that the state of the sample is consistent during testing.

[0022] Furthermore, as attached Figure 2 As shown, the Huarong probes (3) are symmetrically distributed around the pressure sensor (1) to ensure that the pressure sensor (1) is evenly stressed.

[0023] Furthermore, as attached Figure 2 As shown, the front end of the support member (2) is fixedly connected to the flange of the wave converter (4), and the rear end force-bearing part cannot contact the wave converter (4), so that the wave converter (4) is protected from pressure damage.

[0024] Furthermore, the sample to be tested (9) is a non-gyromagnetic solid material, and its thickness is consistent with the thickness of the sample fixture 8, and is strictly implemented in accordance with the GBT35679-2017 standard.

[0025] Attached Figure 4 The invention is a diagram showing an installation example of a waveguide method test device based on a voltage-controlled motor drive. The test device and the baffle (15) are fixed on a base (14), and the left end pressure sensor (1) is fixed to the baffle (15). When the right waveguide (11) receives the thrust from the motor drive device (12), the baffle (15) can ensure that the pressure sensor (1) detects the pressure in real time and transmits it to the single-chip microcomputer (13) for processing. If the pressure reaches a threshold, the single-chip microcomputer (13) promptly sends a message to stop the waveguide from advancing. This method can ensure that the pressure between the waveguide and the test fixture is a fixed value during each test, thereby improving the test repeatability. In addition, the Huarong probe (3) is in soft contact with the waveguide, which can buffer the thrust received by the waveguide on the one hand, and on the other hand, due to the elastic stress of the probe, the waveguide and the test fixture fit more closely, thereby improving the test accuracy.

Claims

1. A waveguide method test device based on voltage-controlled motor drive, comprising: A pressure sensor (1), a support (2), a Huarong probe (3), a wave converter (4), a left waveguide (5), a pin groove (6), a guide rail (7), a sample fixture (8), a sample to be tested (9), a pin (10), a right waveguide (11), a motor drive device (12) and a single chip computer (13); wherein the pressure sensor (1), the support (2), the Huarong probe (3), the wave converter (4) and the left waveguide (5) are fixedly connected in sequence; wherein the right waveguide (11), the wave converter (4), the support (2) and the motor drive device (12) are fixedly connected in sequence; wherein The single chip microcomputer (13) establishes communication with the pressure sensor (1) and the motor drive device (12); the left waveguide (5) and the right waveguide (11) are slidably mounted on the guide rail (7); the single chip microcomputer (13) controls the motor drive device (12) to drive the right waveguide (11) to move forward to the left until the sample fixture (8) passes through the pin (10) and closes with the left waveguide (5) and the right waveguide (11); at this time, the pressure sensor (1) can receive the pressure from the right waveguide (11) and transmit the data to the single chip microcomputer (13) in time for feedback; when the pressure reaches a threshold value, the single chip microcomputer (13) controls the motor drive device (12) in time to stop moving forward.

2. A waveguide method test device based on voltage-controlled motor drive according to claim 1, characterized in that: The Huarong probe (3) has elastic deformation. When the motor drive device (12) applies pressure to the left, the buffering effect of the Huarong probe (3) can ensure that the waveguide is not tilted. At the same time, the elastic stress of the Huarong probe (3) can make the sample fixture (8) and the left and right waveguides tightly closed.

3. The waveguide method test device based on voltage-controlled motor drive according to claim 1 is characterized in that: The pins (10) and the pin grooves (6) are distributed asymmetrically.

4. The waveguide method test device based on voltage-controlled motor drive according to claim 1 is characterized in that: The Huarong probes (3) are symmetrically distributed around the pressure sensor (1).

5. The waveguide method testing device based on voltage-controlled motor drive according to claim 1 is characterized in that: The front end of the support member (2) is fixedly connected to the flange of the wave converter (4), and the rear end force-bearing part cannot contact the wave converter (4).

6. The waveguide method test device based on voltage-controlled motor drive according to claim 1 is characterized in that: The sample to be tested (9) is a non-gyromagnetic solid material, and its thickness is consistent with the thickness of the sample fixture (8).

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