Measurement interface assembly for logic analyzer

Abstract

The utility model discloses a measurement interface assembly for a logic analyzer, belongs to the technical field of logic analyzer auxiliary instruments, and aims to solve the problem of unstable connection of a wiring interface between the logic analyzer and a tested device. Comprising an auxiliary seat, the auxiliary seat comprises a main body limiting part and a probe connecting line limiting part, the main body limiting part is arranged on the horizontal plane of the auxiliary seat, the auxiliary seat is connected with a logic analyzer through the main body limiting part, and the probe connecting line limiting part is arranged on a vertical arm of the auxiliary seat to fix a probe connecting line. And the stability of the probe interface is kept when external force dragging is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of auxiliary equipment technology for logic analyzers, and specifically relates to a measurement interface component for a logic analyzer. Background Technology

[0002] Logic analyzers and oscilloscopes are both commonly used tools in electronic equipment testing. Oscilloscopes, widely used in electronic testing and measurement, have been around since the last century and are therefore widely used in teaching and research, enjoying high popularity. In contrast, logic analyzers, as a newer digital measurement tool, have developed in recent years with the advancement of digital technology, resulting in relatively lower popularity. Most engineers and students are unfamiliar with their operation. However, in specific applications such as digital circuit analysis and debugging, logic analyzers offer significant advantages. Therefore, for technical personnel in the civil aviation communication and navigation industry, it is essential to fully understand the function, basic working principles, and practical operation methods of logic analyzers to enhance their professional skills.

[0003] Logic analyzers primarily analyze and debug digital signals through sampling, level determination, waveform display, signal analysis and processing, and signal storage. First, sampling: the logic analyzer samples the digital signals in the circuit under test using a clock, converting the signal's level state into digital form and storing it in internal or external memory. The sampling rate of a logic analyzer is typically much higher than that of an oscilloscope, reaching hundreds of megahertz, allowing for highly accurate capture and analysis of high-speed digital signals. Next, level determination: the logic analyzer uses a comparator to determine the level state of the sampled digital signal. If the signal is higher than a reference voltage, it's a high level; if it's lower, it's a low level, forming a digital waveform between the high and low levels. Logic analyzers typically display only two voltages (logic 1 and 0), allowing for more precise timing determination and analysis. Finally, signal analysis and processing: the logic analyzer can analyze and process digital signals and capture signals using various triggering methods, such as edge triggering, level triggering, and protocol triggering, allowing for the selection of an appropriate triggering method based on different application scenarios. Furthermore, the logic analyzer supports various digital protocols, such as SPI, I2C, UART, and CAN, facilitating protocol analysis and debugging. It also boasts a significant advantage in the number of channels, expandable to hundreds to simultaneously monitor signals from multiple modules or ports, improving the precision and accuracy of signal acquisition.

[0004] In the current teaching process, logic analyzers connect to the device under test (DUT) via probes, and testing the stability of the probe connection plays an important role. Currently, the connection between the logic analyzer and the DUT is achieved solely through its own probe interface. In teaching processes with many students, the environment is relatively chaotic, and students can easily detach the probes by accidentally pulling them, affecting the accuracy of the measurement results. This makes the analyzer inconvenient to use, reduces measurement efficiency, and also affects the quality of teaching. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a measurement interface component for a logic analyzer, which effectively fixes the probe connection wires of the logic analyzer and maintains the stability of the interface.

[0006] The technical solution adopted in this utility model is:

[0007] A measurement interface component for a logic analyzer includes an auxiliary base. The auxiliary base includes a main body limiting part and a probe connection cable limiting part. The main body limiting part is disposed on the horizontal plane of the auxiliary base and is used to connect the auxiliary base to the logic analyzer. The probe connection cable limiting part is disposed on the vertical arm of the auxiliary base to fix the probe connection cable.

[0008] Based on the above technical solution, the main limiting part further includes a lifting component and a braking component. An installation groove is provided on the horizontal surface of the auxiliary seat. The lifting component is set in the installation groove. The lifting component includes a lifting plate. Support rod A and support rod B are movably connected to both ends of the lifting plate, respectively. The end of support rod A is hinged to a support fixed on the side wall of the installation groove, and the end of support rod B is connected to the braking component.

[0009] Based on the above technical solution, two support rods A and two support rods B are provided, symmetrically distributed on both sides of the lifting plate. The ends of the two support rods B are movably connected to a connecting rod, one end of the braking assembly is connected to the connecting rod, and the other end extends through to the outside of the auxiliary seat.

[0010] Based on the above technical solution, further, the ends of the two support rods B are provided with through holes, and the two ends of the connecting rod pass through the through holes and are located in the sliding groove opened on the side wall of the mounting groove.

[0011] Based on the above technical solution, the braking assembly further includes a fixed cylinder and a cylinder, which are integrally formed and fit together to form a "T" shaped structure. The fixed cylinder is sleeved on the connecting rod, and a movable rod is embedded in the cylinder. The movable rod is rotatably connected to the cylinder through a bearing, and the movable rod is threadedly connected to the auxiliary seat. An adjustment disc is provided at one end of the movable rod located on the outside of the auxiliary seat.

[0012] Based on the above technical solution, a limiting and yielding platform is further provided on the horizontal plane of the auxiliary seat. The limiting and yielding platform is located behind the lifting component. The vertical plane of the limiting and yielding platform is in contact with the side wall of the logic analyzer, and its horizontal plane is reserved for the probe connector.

[0013] Based on the above technical solution, further, a relief groove is provided on the side of the limiting and relief platform to cooperate with the mounting groove, and both the fixing cylinder and the cylinder can move within the relief groove.

[0014] Based on the above technical solution, the probe connection cable limiting part further includes a pressure head. One end of the pressure head is rotatably connected to one side wall of the top of the vertical arm, and the other end is connected to the other side wall of the top of the vertical arm through a locking assembly. A cable passage is formed between the pressure head and the top of the vertical arm to fix the connection cable. Symmetrical rubber extrusion teeth are provided on the bottom surface of the pressure head and the top surface of the vertical arm, respectively. The two symmetrical rubber extrusion teeth are used to limit and fix the connection cable body passing through the cable passage.

[0015] Based on the above technical solution, the locking assembly further includes a locking plate and limiting ears. The locking plate is rotatably connected to the side wall of the pressure head, and two limiting ears are provided, which are symmetrically arranged on the side wall of the vertical arm.

[0016] Based on the above technical solution, a notch is provided at the bottom of the lock plate, which divides the lock plate into a U-shaped structure. Limiting round heads are provided at the bottom of the two legs of the U-shaped structure.

[0017] The beneficial effects of this utility model are:

[0018] This utility model uses an auxiliary base as the main body, which is divided into a main body limiting part and a probe connection line limiting part. The main body limiting part is used to realize the effective connection between the auxiliary base and the logic analyzer, which facilitates the subsequent fixing of the probe connection line.

[0019] In this utility model, the main limiting part is composed of a lifting component and a braking component. The braking component can adjust the lifting height of the lifting component, thereby making the lifting plate fit against the bottom surface of the logic analyzer and pressing against the bottom surface of the logic analyzer. This enables the auxiliary seat to be fixedly connected to the logic analyzer and provides support for the limiting part of the probe connection line.

[0020] In this application, the probe connection cable limiting part includes a pressure head, which works with the top of the vertical arm to form a cable passage. The connection cable passes through the cable passage, and the connection cable is effectively squeezed and limited by symmetrical rubber extrusion teeth, which can maintain the stability of the probe interface when external force pulls. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 The diagram shows a structural diagram of a measurement interface component for a logic analyzer.

[0023] Figure 2 The image shown is a front view of a measurement interface component for a logic analyzer.

[0024] Figure 3 The diagram shown is a schematic of the locking assembly.

[0025] Figure 4 This is a schematic diagram of the braking assembly.

[0026] Among them, 1. Auxiliary seat; 101. Horizontal plane; 102. Mounting groove; 103. Limiting and yielding platform; 104. Vertical arm; 2. Press head; 201. Cable passage; 3. Locking assembly; 301. Locking plate; 302. Limiting round head; 303. Notch; 304. Limiting ear; 305. Protrusion; 4. Lifting assembly; 401. Lifting plate; 402. Support rod A; 403. Support rod B; 404. Connecting rod; 5. Braking assembly; 501. Fixed cylinder; 502. Cylindrical; 503. Moving rod; 504. Adjusting disc; 6. Rubber extrusion teeth. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] This application presents a measurement interface component for a logic analyzer, specifically an auxiliary limit test connection cable designed for the 16862A logic analyzer. The 16862A logic analyzer is one of the most powerful portable logic analyzers currently available, featuring 68 test channels, providing timing sampling rates up to 2.5GHz full-channel / 5GHz half-channel with deep storage, timing scaling rates up to 12.5GHz, trigger rates up to 1.4GHz, state-mode clock rates up to 350MHz, and a 15-inch color touchscreen display. It also includes a built-in solid-state drive, USB 3.0 ports, and a LAN port, enabling rapid transfer and storage of large amounts of data.

[0030] The 16862A logic analyzer is connected to the device under test via a probe. The probe has a flat interface, and without any other structure to limit its movement, it can easily loosen and fall off unintentionally. If this happens frequently over a long period, the stability of the interface connection will be affected, increasing maintenance costs and affecting the lifespan of the logic analyzer.

[0031] Based on the above considerations, this embodiment provides a measurement interface component for a logic analyzer to effectively fix the probe connection cable of the logic analyzer and maintain the stability of the interface. Example

[0032] This embodiment specifically provides a measurement interface component for a logic analyzer, such as... Figure 1-4 As shown,

[0033] The interface assembly is based on an auxiliary base 1, which is divided into a main body limiting part and a probe connection line limiting part. The main body limiting part is set on the horizontal plane 101 of the auxiliary base 1 and includes a lifting component 4 and a braking component 5. A mounting groove 102 is provided on the horizontal plane 101 of the auxiliary base 1. The lifting component 4 is set in the mounting groove 102. The lifting component 4 includes a lifting plate 401. Support rods A402 and B403 are movably connected to both ends of the lifting plate 401, respectively. The end of support rod A402 is hinged to a support fixed on the side wall of the mounting groove 102, and the end of support rod B403 is connected to the braking component 5.

[0034] Specifically, two support rods A402 and two support rods B403 are provided, symmetrically distributed on both sides of the lifting plate 401. The ends of the two support rods B403 are movably connected to a connecting rod 404. In detail, the ends of the two support rods B403 are provided with through holes. Both ends of the connecting rod 404 pass through the through holes and are located in the sliding grooves opened on the side wall of the mounting groove 102. One end of the braking assembly 5 is connected to the connecting rod 404, and the other end extends to the outside of the auxiliary seat 1.

[0035] Combination Figure 1 and Figure 4 As shown, the braking assembly 5 includes a fixed cylinder 501 and a cylinder 502. The fixed cylinder 501 and the cylinder 502 are integrally formed and cooperate to form a "T" shaped structure. The fixed cylinder 501 is sleeved on the connecting rod 404. A movable rod 503 is embedded in the cylinder 502. The movable rod 503 is rotatably connected to the cylinder 502 through a bearing. The movable rod 503 is threadedly connected to the auxiliary seat 1, and an adjustment disc 504 is provided at one end located outside the auxiliary seat 1.

[0036] In its unused state, the auxiliary base 1 is an L-shaped plate. The lifting assembly 4 is placed in the mounting groove 102. After moving the horizontal surface 101 of the auxiliary base 1 to the bottom of the logic analyzer, by rotating the adjusting disk 504, the moving rod 503 rotates inward and pushes the connecting rod 404 to move along the slide groove. At the same time, the support rod B403, which is sleeved on the connecting rod 404, is pushed inward and tilts, pushing the lifting plate 401 to move upward. While the support rod B403 moves inward, the support rod A402 rotates around the support, and together with the support rod B403, pushes the lifting plate 401 upward and presses against the bottom surface of the logic analyzer, thereby achieving a fixed connection between the auxiliary base 1 and the logic analyzer.

[0037] In addition, a limiting and yielding platform 103 is provided on the horizontal plane 101 of the auxiliary seat 1. The limiting and yielding platform 103 is located behind the lifting component 4. The vertical plane of the limiting and yielding platform 103 is in contact with the side wall of the logic analyzer, and its horizontal plane 101 is reserved for the probe connector.

[0038] The side of the limiting and clearance platform 103 is provided with a clearance groove that mates with the mounting groove 102, and both the fixed cylinder 501 and the cylinder 502 can move within the clearance groove.

[0039] A pressure head 2 is provided at the top of the vertical arm 104 of the auxiliary seat 1. One end of the pressure head 2 is rotatably connected to one side wall of the top of the vertical arm 104, and the other end is connected to the other side wall of the top of the vertical arm 104 through the locking assembly 3. A wire passage 201 for fixing the connecting line is formed between the pressure head 2 and the top of the vertical arm 104. Symmetrical rubber extrusion teeth 6 are provided on the bottom surface of the pressure head 2 and the top surface of the vertical arm 104 respectively. The two symmetrical rubber extrusion teeth 6 are used to limit and fix the connecting line passing through the wire passage 201 to prevent it from loosening.

[0040] like Figure 3 As shown, the locking assembly 3 includes a locking plate 301 and limiting ears 304. The locking plate 301 is rotatably connected to the side wall of the pressure head 2. There are two limiting ears 304, which are symmetrically arranged on the side wall of the vertical arm 104. When the pressure head 2 is lowered, the locking plate 301 is located between the limiting ears 304 of the chain, realizing the effective connection between the pressure head 2 and the vertical arm 104.

[0041] The bottom of the locking plate 301 has an upward-facing notch 303, which divides the locking plate 301 into a U-shaped structure. Limiting round heads 302 are respectively provided at the bottom of the two legs of the U-shaped structure. When the locking plate 301 rotates and presses against the two limiting ears 304, the two legs of the U-shaped structure retract into the notch 303, making it easier to enter the interior through the limiting ears 304. The limiting round heads 302 are located below the limiting ears 304, which can prevent the locking plate 301 from moving upward and causing the pressure head 2 to loosen.

[0042] The ends of the two limiting ears 304 are symmetrically provided with bulges 305. The two symmetrical bulges 305 can prevent the internal U-shaped structure from moving horizontally out of the limiting ears 304.

[0043] The specific process of effectively fixing the connection line between the logic analyzer and the fixture under test using the interface component designed above is as follows:

[0044] The entire auxiliary seat 1 is placed below the interface, and the horizontal surface 101 of the auxiliary seat 1 is pushed below the logic analyzer. Since the size of the auxiliary seat 1 is designed to match the size of the logic analyzer, the movement of the auxiliary seat 1 below the logic analyzer will not affect the use of the bottom interface of the logic analyzer. Next, the adjustment disk 504 is rotated, and the moving rod 503 rotates inward, pushing the connecting rod 404 inward along the slide groove. Then, the support rod B403, which is sleeved on the connecting rod 404, moves inward and rotates around the connecting rod 404, and the lifting plate 401 is lifted. During this process, the support rod A402 and the support rod B403 simultaneously push the lifting plate upward, so that the lifting plate 401 rests on the bottom surface of the logic analyzer, thereby achieving effective limiting of the auxiliary seat 1 and the logic analyzer. At this time, the vertical arm 104 of the limiting and clearance platform 103 and the vertical surface of the logic analyzer are lifted, preventing the entire auxiliary seat 1 from moving in the front and back directions.

[0045] Open the pressure head 2 and connect the probe cable. The probe connector is located above the limiting and clearance platform 103, and the probe cable is located inside the cable passage 201. Rotate the pressure head 2, and the pressure head 2 moves down to press on the cable. The rubber extrusion teeth 6 press on the upper and lower sides of the cable, effectively limiting the cable. Flip the locking plate 301 and squeeze its two legs. The two legs retract inward and pass through the bulge 305 of the limiting ear 304, achieving effective connection.

[0046] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. In this utility model, it should also be noted that the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integrally formed connection, a mechanical connection, or an indirect connection through an intermediate medium. The specific meaning of the terms in this utility model can be understood according to the specific circumstances.

[0047] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A measurement interface component for a logic analyzer, characterized in that, The system includes an auxiliary base, which comprises a main body limiting part and a probe connection cable limiting part. The main body limiting part is set on the horizontal plane of the auxiliary base to connect the auxiliary base to the logic analyzer. The probe connection cable limiting part is set on the vertical arm of the auxiliary base to fix the probe connection cable.

2. A measurement interface component for a logic analyzer according to claim 1, characterized in that, The main limiting part includes a lifting component and a braking component. A mounting groove is provided on the horizontal surface of the auxiliary seat. The lifting component is set in the mounting groove. The lifting component includes a lifting plate. Support rod A and support rod B are movably connected to both ends of the lifting plate, respectively. The end of support rod A is hinged to a support fixed on the side wall of the mounting groove, and the end of support rod B is connected to the braking component.

3. A measurement interface component for a logic analyzer according to claim 2, characterized in that, There are two support rods A and two support rods B, symmetrically distributed on both sides of the lifting plate. The ends of the two support rods B are movably connected to a connecting rod. One end of the braking assembly is connected to the connecting rod, and the other end extends through to the outside of the auxiliary seat.

4. A measurement interface component for a logic analyzer according to claim 3, characterized in that, The ends of the two support rods B are provided with through holes, and the two ends of the connecting rod pass through the through holes and are located in the sliding grooves opened on the side wall of the mounting groove.

5. A measurement interface component for a logic analyzer according to claim 2, characterized in that, The braking assembly includes a fixed cylinder and a cylinder, which are integrally formed and fit together to form a "T" shaped structure. The fixed cylinder is sleeved on the connecting rod, and a movable rod is embedded in the cylinder. The movable rod is rotatably connected to the cylinder through a bearing, and is threadedly connected to the auxiliary seat. An adjustment disc is provided at one end of the movable rod located on the outside of the auxiliary seat.

6. A measurement interface component for a logic analyzer according to claim 1, characterized in that, A limit and clearance platform is also provided on the horizontal plane of the auxiliary seat. The limit and clearance platform is located behind the lifting assembly. The vertical plane of the limit and clearance platform is in contact with the side wall of the logic analyzer, and its horizontal plane is reserved for the probe connector.

7. A measurement interface component for a logic analyzer according to claim 6, characterized in that, The side of the limiting and clearance platform is provided with a clearance groove that matches the mounting groove, and both the fixed cylinder and the cylinder can move within the clearance groove.

8. A measurement interface component for a logic analyzer according to claim 1, characterized in that, The probe connection cable limiting part includes a pressure head. One end of the pressure head is rotatably connected to one side wall of the top of the vertical arm, and the other end is connected to the other side wall of the top of the vertical arm through a locking assembly. A cable passage is formed between the pressure head and the top of the vertical arm to fix the connection cable. Symmetrical rubber extrusion teeth are provided on the bottom surface of the pressure head and the top surface of the vertical arm, respectively. The two symmetrical rubber extrusion teeth are used to limit and fix the connection cable body passing through the cable passage.

9. A measurement interface component for a logic analyzer according to claim 8, characterized in that, The locking assembly includes a locking plate and limiting ears. The locking plate is rotatably connected to the side wall of the pressure head. There are two limiting ears, which are symmetrically arranged on the side wall of the vertical arm.

10. A measurement interface component for a logic analyzer according to claim 9, characterized in that, The bottom of the lock plate has an upward notch that divides the lock plate into a U-shaped structure. Limiting round heads are provided at the bottom of the two legs of the U-shaped structure.

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