Independent channel detection equipment and detection method thereof

Abstract

The invention relates to the field of PIND detection, in particular to independent channel detection equipment and a detection method thereof. The invention provides independent channel detection equipment which comprises a synthesis sensor and display equipment, the synthesis sensor is connected with the display equipment through a plurality of channels, and signals of the synthesis sensor are independently displayed on the display equipment through the channels. According to the independent channel detection equipment and the detection method thereof, a plurality of detection elements can be detected at the same time, and whether the detection elements contain the redundant substances or not and which detection element contains the redundant substances are visually displayed.

Description

Technical Field

[0001] The present application relates to the field of PIND detection, and in particular to an independent channel detection device and a detection method thereof. Background Art

[0002] Particle Impact Noise Detection (PIND) is a system for testing the reliability of components. It is commonly used to detect loose particles in the packaging of electronic components such as integrated circuits, transistors, capacitors, and relays in the aviation / aerospace / military fields.

[0003] In traditional PIND detection equipment, one sensor has only one detection area, so it can only detect one component at a time, and the detection efficiency is low. In subsequent improved equipment, one sensor has more than one detection area, but multiple detection areas can only be displayed synthetically, that is, when multiple detection components are detected at the same time, if the detection results show that there are redundant objects, the device cannot directly determine which detection component has the redundant objects, and can only re-detect each detection component of the batch separately. Therefore, this type of equipment cannot be actually used in scenarios where redundant objects in multiple components are identified at the same time, and even requires multiple repeated detections, resulting in low detection efficiency. It can be seen that the existing PIND equipment cannot fully meet the actual needs of on-site detection. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide an independent channel detection device and a detection method thereof, which can detect multiple detection elements at the same time and can directly determine the detection elements with problems.

[0005] To solve the above problems, in a first aspect, the present application provides an independent channel detection device, including a synthetic sensor and a display device, wherein the synthetic sensor is connected to the display device through multiple channels, and the signal of the synthetic sensor is independently displayed on the display device through the channels.

[0006] In the above technical solution, the independent channel detection device of the present application can detect multiple detection elements at the same time, and intuitively display whether the detection element contains excess matter, and specifically which detection element contains the excess matter.

[0007] In some embodiments, the synthetic sensor is provided with a plurality of sensitive elements and a plurality of signal outlets, and each of the signal outlets is provided in one-to-one correspondence with the sensitive element;

[0008] The negative electrode of each of the sensitive elements is connected to a common ground with the metal shell of the synthetic sensor, and the positive electrode of each of the sensitive elements is connected to different signal lines respectively. Each of the signal lines passes through the signal lead-out port and is led out to a multi-core insulator respectively.

[0009] In the above technical solution, one channel may correspond to one sensitive element and its corresponding signal lead wire. Of course, one channel may also correspond to multiple sensitive elements and their corresponding signal lead wires.

[0010] In some embodiments, the synthetic sensor comprises

[0011] The detection platform is provided with a plurality of accommodating cavities for accommodating the sensitive elements;

[0012] A connecting base is provided with a central cavity and slots for fixing the multi-core insulator;

[0013] The signal lead-out port is in communication with the accommodating cavity and the central cavity and is arranged obliquely to prevent the sealant fixing the signal line from overflowing.

[0014] In the above technical solution, the sealant will not overflow into the accommodating cavity, thereby affecting the operation of the sensitive element.

[0015] In some embodiments, the synthetic sensor has:

[0016] A first shielding component, used to shield the interference of external signals on the detection signal;

[0017] The second shielding component is used to shield mutual interference between detection signals.

[0018] In the above technical solution, through the arrangement of the first shielding component and the second shielding component, the signal of each channel can be completely and clearly transmitted to the display device.

[0019] In some embodiments, the synthetic sensor is provided with a peripheral detection area for accommodating a plurality of peripheral sensitive elements, and the peripheral detection area is provided with a sensitivity enhancement portion, and the sensitivity enhancement portion is used to coordinate the detection consistency of each of the peripheral sensitive elements.

[0020] In the above technical solution, by strengthening the sensitive enhancement part, the corresponding impact acceleration deviation of each detection area under the vibration state is reduced, and the detection accuracy is improved.

[0021] In some embodiments, the synthetic sensor has a circular table with a diameter ≥ 50 mm, and the circular table has a central sensitive element located in a central area and four peripheral sensitive elements located in a peripheral area; each of the peripheral sensitive elements is distributed in a cross-shaped ring on the circular table.

[0022] In the above technical solution, a small-sized synthetic sensor is implemented to detect more detection elements at the same time, thereby improving detection efficiency.

[0023] In some embodiments, the display device includes an independent display area corresponding to each of the channels, and an energy display area.

[0024] In the above technical solution, the displayed data is more comprehensive. Moreover, whether there are any redundant components in the same batch of components to be tested can be quickly confirmed during the test, thereby improving the efficiency of the test.

[0025] In some embodiments, the independent channel detection device further comprises:

[0026] a vibration table, fixed with the synthetic sensor, generating a series of shocks and vibrations;

[0027] The lower computer is connected to the vibration table, providing the vibration table with driving capability, causing it to generate impact and vibration and implement closed-loop control; and is connected to the synthetic sensor, for receiving signals and transmitting them to the upper computer;

[0028] The upper computer is connected to the lower computer, and is used for receiving and processing the signal, and displaying the signal on a display device to determine whether there is any redundant object in the detection element.

[0029] In some embodiments, the lower computer includes a sound card board, and the sound card board is provided with a plurality of signal receiving connectors.

[0030] In the above technical solution, each signal receiving connector corresponds to a channel.

[0031] In a second aspect, the present application further provides a detection method for an independent channel detection device, which is applied to the above-mentioned independent channel detection device and comprises the following steps:

[0032] Fixing the detection element on the synthetic sensor and executing the detection scheme;

[0033] Each detection signal is independently displayed on the display device through different channels.

[0034] In the above technical solution, the detection method of the independent channel detection device of the present application can more quickly identify the detection results through the independent display of each detection signal, thereby improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is an overall schematic diagram of the independent channel detection device of this application;

[0036] Figure 2 It is a schematic diagram of the structure of the synthetic sensor in this application;

[0037] Figure 3 A cross-sectional view of a synthetic sensor in this application;

[0038] Figure 4It is a partial cross-sectional view of the FPCB cable in this application;

[0039] Figure 5 A schematic diagram of a display area of ​​a display device in this application;

[0040] Among them: 10. Synthetic sensor; 11. Sensitive element; 111. Peripheral sensitive element; 112. Central sensitive element; 12. Signal lead-out port; 13. Multi-core insulator; 14. Detection platform; 141. Accommodating cavity; 142. Cover plate; 15. Connecting base; 16. FPCB cable; 161. Cover layer; 162. Isolation layer; 17. Sensitive enhancement part; 18. Output port; 19. Detection area; 20. Display device; 21. Independent display area; 22. Energy display area; 30. Vibration table; 40. Upper computer; 50. Lower computer; 51. Sound card board; 512. Signal receiving connector. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] 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.

[0043] 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 application. 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 the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization 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. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0044] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0045] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0046] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0047] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0048] In order to solve the problem of low detection efficiency in current PIND detection, the present application provides an independent channel detection device, such as Figure 1-3 shown.

[0049] The independent channel detection device of the present application includes a composite sensor 10 and a display device 20. The composite sensor 10 is connected to the display device 20 through multiple channels. The signals of the composite sensor 10 are independently displayed on the display device 20 simultaneously through the channels.

[0050] In the present application, "independent display" means that the signal corresponding to each channel can be displayed separately on the display device 20. This includes both that the signal of each channel is displayed on the display device 20 at the same time, and that the signal of each channel is displayed on the display device 20 in batches or selectively.

[0051] The synthetic sensor 10 is provided with a plurality of detection areas 19, and the detection areas 19 and channels can be arranged in a one-to-many or one-to-one manner. In some embodiments, one detection area 19 can match multiple channels, thereby solving the problem that the signal shielding effect of a certain channel is not good, resulting in abnormal display results in the display area, thereby improving detection reliability.

[0052] Preferably, each channel of the synthetic sensor 10 corresponds to a detection area 19. Each detection area 19 corresponds to a channel. When the independent channel detection device of the present application is actually used, the detection elements are arranged in each detection area 19, so that the signal of each detection element can be displayed on the display device 20 through the channel. Therefore, the independent channel detection device of the present application can detect multiple detection elements at the same time, and intuitively display whether the detection element contains excess matter, and which detection element contains excess matter.

[0053] In some embodiments, the synthetic sensor 10 is provided with a plurality of sensitive elements 11 and a plurality of signal outlets 12 , and each signal outlet 12 is provided in a one-to-one correspondence with a sensitive element 11 .

[0054] The negative electrode of each sensitive element 11 is connected to a common ground with the metal shell of the synthetic sensor 10 , and the positive electrode of each sensitive element 11 is connected to a different signal line respectively. Each signal line passes through a signal lead-out port 12 and is led out to a multi-core insulator 13 respectively.

[0055] The negative electrode of each sensitive element 11 is connected to the metal shell of the synthetic sensor 10 and shares a common ground, which can effectively suppress external signal interference, while improving the reliability of the test system and reducing interference factors generated by the system itself.

[0056] During the test, the measurement information of each detection element is received through the sensitive element 11. In the PIND test, the commonly used sensitive element 11 is a sound sensor.

[0057] In the prior art, the signal lines of the sensitive element 11 are connected in parallel into a channel and transmitted from the synthetic sensor 10. The combined signal is analyzed to determine whether the detection element contains waste matter. However, if the detection element contains one or more detection elements with waste matter, it is impossible to directly determine whether the detection element is qualified and it is necessary to re-test each one.

[0058] In the independent channel detection device of the present application, the signal lines of each sensitive element 11 are led out through the signal lead-out port 12 respectively, and are independently connected to each core of the multi-core insulator 13 .

[0059] Meanwhile, the signal lead-out port 12 is merely a through-hole for accommodating the signal line to pass through, and does not affect the signal shielding requirements of each sensitive element 11 .

[0060] In the above technical solution, one channel may correspond to one sensitive element 11 and its corresponding signal lead wire. Of course, one channel may also correspond to multiple sensitive elements 11 and their corresponding signal lead wires.

[0061] In some embodiments, the synthetic sensor 10 includes a detection platform 14 and a connection base 15. The detection platform 14 is provided with a plurality of accommodating cavities 141 for accommodating the sensitive elements 11. The connection base 15 is provided with a central cavity and slots for fixing the multi-core insulator 13.

[0062] The signal lead-out port 12 communicates with the accommodating cavity 141 and the central cavity and is arranged at an angle to prevent the sealant fixing the signal line from overflowing.

[0063] The signal lines converge at the side wall of the central cavity and are potted and fixed to the multi-core insulator 13 , and the signal lines are connected to the cores of the multi-core insulator 13 in a one-to-one correspondence.

[0064] The material of the multi-core insulator 13 can be Teflon or polyimide PI, or sintered glass beads. Preferably, the multi-core insulator 13 is a glass insulator.

[0065] The multi-core insulator 13 can be bonded to the slots by quick-drying glue.

[0066] The angle between the signal lead-out port 12 and the central cavity facing away from the detection platform 14 is between 5° and 45°. If the angle is too small, the anti-overflow effect cannot be fully achieved, and the sealant may flow into the accommodating cavity 141 and affect the operation of the sensitive element 11. If the angle is too large, the signal lead-out line will be too bent, thereby shortening the service life of the signal lead-out line.

[0067] When fixing the signal line, the detection platform 14 is placed at the bottom and the connection base 15 is placed upward. Thus, the central cavity can be extended to fix each signal line with sealant. Therefore, the signal lead-out port is arranged as above, and the sealant will not overflow into the accommodating cavity 141, thereby avoiding the sealant from adhering to the sensitive element 11 in the accommodating cavity and affecting the operation of the sensitive element 11.

[0068] The synthetic sensor is provided with a first shielding component and a second shielding component. The first shielding component is used to shield the interference of external signals on the detection signal. The second shielding component is used to shield the mutual interference between the detection signals.

[0069] The first shielding component includes an isolation space for each sensitive element 11. The isolation space places the sensitive component 11 inside the synthetic sensor 10, isolates the sensitive element 11 from the outside world, and thus isolates each sensitive element 11 from the outside world, thereby shielding the interference of external signals on the detection signals of each sensitive element 11. For example, after a sensitive element 11 is loaded into the accommodating cavity 141, the opening of the accommodating cavity 141 is covered with a cover plate 142 and fixed to the accommodating cavity 141, thereby forming an isolation space between the accommodating cavity 141 and the cover plate 142. Alternatively, a sensitive element 11 is arranged in the central cavity, and an isolation space is formed between the central cavity and the detection platform at the top, and the mounting seat at the bottom.

[0070] On the other hand, the synthetic sensor 10 further includes an output port 18 , and the multi-core insulator 13 is connected to the output port 18 via an FPCB cable.

[0071] The second shielding component includes an isolation layer 162 in the FPCB cable. An isolation layer 162 is provided between each signal line to prevent mutual interference between the signals and is used for signal shielding between the signal lines. Figure 4 shown.

[0072] The first shielding component also includes a covering layer 161 of the FPCB cable, and both ends of the covering layer 161 cover the connection end of the multi-core insulator 13 and the connection end of the output port 18, respectively, and all signal lines are covered therein, thereby shielding the external interference of the signal when it is in the FPCB cable part. Figure 4 shown.

[0073] The covering layer 161 and the isolation layer 162 are made of copper alloys such as brass and phosphor bronze.

[0074] The first shielding component also includes an insulating layer on the surface of the FPCB cable, and the insulating layer covers the cover layer 161. The insulating layer 11 is a high-frequency hot-melt adhesive film, which has a relatively low dielectric constant, thereby meeting the insulation requirements of signal transmission and reducing the signal attenuation of the insulating layer, thereby achieving high-quality transmission of the FPCB cable.

[0075] By configuring the first shielding component and the second shielding component, the signals of each channel are neither interfered by external signals nor interfered with each other, thereby ensuring that each signal can be completely and clearly transmitted to the display device 20 .

[0076] The composite sensor 10 is provided with a peripheral detection area for accommodating a plurality of peripheral sensitive elements 111. The peripheral detection area is provided with a sensitivity enhancement portion 17. The sensitivity enhancement portion 17 is used to coordinate the detection consistency of each peripheral sensitive element 111.

[0077] When the independent channel detection device of the present application performs detection, each detection element generates impact acceleration through the vibration of the synthetic sensor 10. By strengthening the sensitive enhancement part 17, the corresponding impact acceleration deviation of each detection area 19 in the vibration state is reduced, and the detection accuracy is improved.

[0078] The sensitive enhancement portion 17 can be a thickness enhancement of the components of the synthetic sensor 10 itself, or a reinforcement method of a separate reinforcing rib.

[0079] The synthetic sensor 10 has a circular table with a diameter of ≥50 mm. The circular table has a central sensitive element 112 located in the central area and four peripheral sensitive elements 111 located in the peripheral area. The peripheral sensitive elements 111 are distributed on the circular table in a cross-shaped ring shape.

[0080] The reason for preferring a circular table is that current detection equipment generally has a vibration center. Setting the vibration center at the center of the circular table can reduce the vibration deviation of each detection area 19. When the diameter of the circular table is ≥50 mm, more detection areas 19 can be arranged than the traditional synthetic sensor 10, so that more detection elements can be detected at the same time, improving the detection efficiency.

[0081] In the above technical solution, the arrangement of the four peripheral sensitive elements 111 symmetrically makes the circular table more stable when vibrating. At the same time, it satisfies the optimal arrangement of the circular table with multiple detection areas 19. If the number is larger, the detection elements will not fit on the table; and if the number is smaller, the detection efficiency will be reduced.

[0082] Arranging the central sensitive element 112 at the center increases the number of detectable areas of the synthetic sensor and has no effect on the impact acceleration of the peripheral sensitive elements 111, which is the most cost-effective arrangement.

[0083] like Figure 5 As shown, the display device 20 includes an independent display area 21 corresponding to each channel, and an energy display area 22.

[0084] The independent display area 21 is used to display the individual signals of each channel, which is convenient for locating the detection elements with redundant objects. The energy display area 22 is used to display the energy distribution of the synthesis of the signals of each channel, and the displayed data is more comprehensive. And if there are no redundant objects in the same batch of detected elements, it can be quickly determined through one display area.

[0085] Obviously, in the above technical solution, the displayed data is more comprehensive. Moreover, whether there are any redundant components in the same batch of components to be tested can be quickly confirmed during the test, which improves the efficiency of the test.

[0086] On the other hand, the display device 20 further includes an acceleration display area for displaying the vibration acceleration waveform during the test. The acceleration display area and the energy display area 22 can be selectively switched for display.

[0087] The independent channel detection device further includes a vibration table 30, a lower computer 50 and an upper computer 40. The vibration table 30 is fixed with the synthetic sensor 10 to generate a series of shocks and vibrations.

[0088] The lower computer 50 is connected to the vibration table 30 to provide the vibration table 30 with driving capability, so that it generates impact and vibration and implements closed-loop control. At the same time, the lower computer 50 is connected to the synthetic sensor 10 to receive signals and transmit them to the upper computer 40.

[0089] The upper computer 40 is connected to the lower computer 50 and is used for receiving and processing the signal and displaying the signal on the display device 20 to determine whether there is any redundant object in the detection element.

[0090] The lower computer 50 includes a sound card board 51. The sound card board 51 is provided with a plurality of signal receiving connectors.

[0091] The signal receiving connector 512 is connected to the output port 18 one by one through a signal line.

[0092] In a second aspect, the present application provides an independent channel detection device applied to the above, comprising the following steps: fixing the detection element on the synthetic sensor 10 and executing the detection scheme.

[0093] Each detection signal passes through a different channel and is independently displayed on the display device 20 .

[0094] The detection method of the independent channel detection device of the present application can more quickly identify the detection results and improve the detection efficiency through the independent display of each detection signal.

[0095] Example 1

[0096] like Figure 1-3As shown, in the first aspect, the independent channel detection device of the present application includes a synthetic sensor 10, a display device 20, a vibration table 30, a lower computer 50 and an upper computer 40.

[0097] The synthetic sensor 10 includes a detection platform 14 and a connection base 15. The detection platform 14 is a circular table with a diameter of 100 mm. The detection platform 14 has a central sensitive element 112 located in the central area and four peripheral sensitive elements 111 located in the peripheral area, each corresponding to five detection areas 19. The five detection areas 19 are connected to the display device 20 through five channels. The signals of the five detection areas 19 are simultaneously and independently displayed on the display device 20 through the channels, forming five independent display areas 21, such as Figure 5 The display device 20 further includes five signal synthesis energy display areas 22 .

[0098] The peripheral sensing elements 111 are distributed on the circular table in a cross-shaped ring shape. The central sensing element 112 and the peripheral sensing elements 111 are both sound sensors.

[0099] The negative electrodes of the central sensitive element 112 and the peripheral sensitive element 111 are connected to the metal shell of the composite sensor 10. The positive electrodes of the central sensitive element 112 and the peripheral sensitive element 111 are connected to different signal lines, and each signal line passes through the signal lead-out port 12 and is led out to the multi-core insulator 13. In this embodiment, the multi-core insulator 13 is a 5-core glass insulator.

[0100] The detection platform 14 is provided with four accommodating cavities 141 for accommodating peripheral sensitive elements 111. The connection base 15 is provided with a central cavity and a square slot for fixing a 5-core glass insulator. A central sensitive element 112 is accommodated in the central cavity.

[0101] Each peripheral sensitive element 111 has a corresponding signal outlet 12 , which communicates with the accommodating cavity 141 and the central cavity and is tilted at an angle of 10°.

[0102] The central sensitive element 112 does not need a signal outlet 12, and its signal line can be directly converged with the signal line of the peripheral sensitive element 111 on the side wall of the central cavity, and then be potted and fixed to the 5-core glass insulator. The signal lines of the central sensitive element 112 and the peripheral sensitive element 111 are connected to each core of the 5-core glass insulator one by one.

[0103] A sensitive enhancement portion 17 is provided between adjacent accommodating cavities 141. The sensitive enhancement portion 17 is used to coordinate the detection consistency of each peripheral sensitive element 111. In this embodiment, the sensitive enhancement portion 17 is a reinforcing rib.

[0104] The synthetic sensor 10 is provided with a first shielding component and a second shielding component. The first shielding component is used to shield the interference of external signals on the detection signal.

[0105] The first shielding assembly includes a cover plate 142. After the sensitive element 11 is placed in the accommodating cavity 141, the cover plate 142 covers the opening of the accommodating cavity 141 and is fixed to the accommodating cavity 141, thereby isolating each sensitive element 11 from the outside, thereby shielding the interference of external signals on the detection signals of each sensitive element 11.

[0106] On the other hand, the synthetic sensor 10 further includes an output port 18 , and the multi-core insulator 13 is connected to the output port 18 via an FPCB cable.

[0107] The second shielding component includes an isolation layer 162 in the FPCB cable. An isolation layer 162 is provided between each signal line to shield the signal between each signal line. Figure 4 The width of the isolation layer 162 is 70 μm, and the material of the isolation layer 162 is copper.

[0108] The first shielding component also includes a covering layer 161 of the FPCB cable, and the covering layer 161 covers all signals, thereby shielding the external interference of the signal when it is in the FPCB cable part. Figure 4 The thickness of the covering layer 161 is 10 mm.

[0109] On the other hand, the display device 20 further includes an acceleration display area for displaying the vibration acceleration waveform during the test. The acceleration display area and the energy display area 22 can be selectively switched for display.

[0110] The lower computer 50 includes a sound card board 51. The sound card board 51 is provided with a plurality of signal receiving connectors.

[0111] The signal receiving connector 512 is connected to the output port 18 one by one through a signal line.

[0112] On the second aspect, this embodiment also provides an independent channel detection device applied to the above, comprising the following steps: fixing five detection elements respectively on the five detection areas 19 of the synthetic sensor 10, and executing the detection scheme.

[0113] The five detection signals are independently displayed on the display device 20 through five different channels, forming five corresponding independent display areas 21 .

[0114] 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. An independent channel detection device, characterized in that: It comprises a synthetic sensor and a display device, wherein the synthetic sensor is connected to the display device via a plurality of channels, and the signal of the synthetic sensor is independently displayed on the display device via the channels.

2. The independent channel detection device according to claim 1, characterized in that: The synthetic sensor is provided with a plurality of sensitive elements and a plurality of signal outlets, and each of the signal outlets is arranged in one-to-one correspondence with the sensitive element; The negative electrode of each of the sensitive elements is connected to a common ground with the metal shell of the synthetic sensor, and the positive electrode of each of the sensitive elements is connected to different signal lines respectively. Each of the signal lines passes through the signal lead-out port and is led out to a multi-core insulator respectively.

3. The independent channel detection device according to claim 2, characterized in that: The synthetic sensor comprises The detection platform is provided with a plurality of accommodating cavities for accommodating the sensitive elements; A connecting base is provided with a central cavity and slots for fixing the multi-core insulator; The signal lead-out port is in communication with the accommodating cavity and the central cavity and is arranged obliquely to prevent the sealant fixing the signal line from overflowing.

4. The independent channel detection device according to claim 1, characterized in that: The synthetic sensor comprises: A first shielding component, used to shield the interference of external signals on the detection signal; A second shielding component, used for shielding mutual interference between detection signals; The synthetic sensor includes an FPCB cable; the first shielding component includes a covering layer of the FPCB cable, and the covering layer encloses all signals; the second shielding component includes an isolation layer of the FPCB cable, and the isolation layer is arranged between adjacent signals.

5. The independent channel detection device according to claim 2, characterized in that: The synthetic sensor is provided with a peripheral detection area for accommodating a plurality of peripheral sensitive elements. The peripheral detection area is provided with a sensitivity enhancement portion, and the sensitivity enhancement portion is used to coordinate the detection consistency of each of the peripheral sensitive elements.

6. The independent channel detection device according to claim 1, characterized in that: The synthetic sensor has a circular table with a diameter of ≥50 mm, wherein the circular table has a central sensitive element located in a central area and four peripheral sensitive elements located in a peripheral area; The peripheral sensitive elements are distributed on the circular table in a cross-shaped ring shape.

7. The independent channel detection device according to claim 1, characterized in that: The display device includes independent display areas corresponding to the channels and an energy display area.

8. The independent channel detection device according to claim 1, characterized in that: Also includes: a vibration table, fixed with the synthetic sensor, generating a series of shocks and vibrations; The lower computer is connected to the vibration table, providing the vibration table with driving capability, causing it to generate impact and vibration and implement closed-loop control; and is connected to the synthetic sensor, for receiving signals and transmitting them to the upper computer; The upper computer is connected to the lower computer and is used for receiving and processing the signal and displaying the signal on a display device to determine whether there is any redundant object in the detection element.

9. The independent channel detection device according to claim 8, characterized in that: The lower computer comprises a sound card board, and the sound card board is provided with a plurality of signal receiving connectors.

10. A detection method for an independent channel detection device, characterized in that: The independent channel detection device as claimed in claims 1 to 9 comprises the following steps: Fixing the detection element on the synthetic sensor and executing the detection scheme; Each detection signal is independently displayed on the display device through different channels.

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