Oscilloscope probe calibration device

Abstract

The utility model belongs to the technical field of oscilloscopes, and particularly relates to an oscilloscope probe calibration device which comprises an oscilloscope body, a moving groove, a sliding groove and a positioning hole are arranged on the oscilloscope body, a roller is movably arranged in the moving groove, a sliding block is arranged in the sliding groove in a sliding mode, a horizontal contrast body is fixedly arranged on the sliding block, and the horizontal contrast body is fixedly connected with the oscilloscope body. A laser lamp is fixedly arranged on the horizontal contrast body, a bolt is movably arranged on the horizontal contrast body, and a spring is fixedly arranged on the bolt. According to the utility model, the left side of the oscilloscope is provided with the horizontal contrast body whose position can be adjusted, the horizontal contrast body can slide back and forth on the side surface of the oscilloscope through cooperation of the pulley, the moving groove, the slide block and the slide groove, and then the bolt is fixed in the positioning hole through the spring to complete fixation of the horizontal contrast body. The laser lamp on the horizontal contrast body can horizontally emit laser rays, contrast is completed through the horizontal laser rays and the waveform lines, and a user can conduct calibration more quickly and accurately when observing the waveform lines.

Description

Technical Field

[0001] The utility model relates to the technical field of oscilloscopes, and specifically relates to an oscilloscope probe calibration device. Background Art

[0002] An oscilloscope is an electronic measuring instrument mainly used to display the waveforms of electronic signals and observe and analyze the characteristics of electronic signals. It can convert the invisible electrical signals into visible images, facilitating people to study the change processes of various electrical phenomena. When in use, it is connected to the object under test through an oscilloscope probe, and the measured information is displayed on the display screen.

[0003] When we replace a new oscilloscope probe or the oscilloscope probe has been used for a long time, the waveforms displayed by the oscilloscope measurement may show overshoot or deficiency. At this time, the oscilloscope probe needs to be calibrated to ensure the accuracy of the measurement data. The existing probe calibration device calibrates by rotating a calibration rod in the calibration hole of the probe. The user needs to judge whether the calibration is successful by observing whether the waveform line is horizontal. However, the existing calibration device does not have a structure that can improve the judgment accuracy of the user, resulting in possible deviation when the user judges whether the waveform line is horizontal.

[0004] To solve the above problems, an oscilloscope probe calibration device is proposed in this application. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides an oscilloscope probe calibration device, which includes an oscilloscope body. A moving groove, a sliding groove and a positioning hole are provided on the oscilloscope body. A roller is movably arranged in the moving groove, a slider is slidably arranged in the sliding groove, a horizontal reference body is fixedly arranged on the slider, a laser lamp is fixedly arranged on the horizontal reference body, a plug pin is movably arranged on the horizontal reference body, a spring is fixedly arranged on the plug pin. An interface is fixedly arranged on the top of the oscilloscope body, a connecting probe is movably arranged on the interface, a calibration hole is provided on the connecting probe, a storage sleeve is fixedly arranged on the right side surface of the oscilloscope body, a flip cover is rotatably arranged on the storage sleeve, an elastic buckle is fixedly arranged on the flip cover, and a calibration rod is movably arranged in the storage sleeve.

[0006] Preferably, a display screen and a reflector are provided on the front surface of the oscilloscope body. An insufficient waveform line is provided on the display screen. A horizontal laser line is provided at the output end of the slider, and the horizontal laser line is horizontally reflected after reaching the reflector.

[0007] Preferably, the moving groove and the sliding groove are provided on the left side surface of the oscilloscope body. The diameter of the roller is equal to the height of the moving groove, and the shape of the slider matches the sliding groove.

[0008] Preferably, the slider is located on the side of the moving groove. A connecting rod is fixedly provided on the moving groove. The connecting rod penetrates through the slider, and the horizontal reference body is rotatably connected to the connecting rod.

[0009] Preferably, a plurality of equidistantly arranged positioning holes are formed on the left side surface of the oscilloscope body. The same positioning holes are also formed on the horizontal reference body. The pin is movably connected in the positioning holes. One end of the spring is fixedly connected to the pin, and the other end of the spring is fixedly connected to the horizontal reference body.

[0010] Preferably, the widths of both ends of the calibration rod are equal to the diameter of the calibration hole. The flip cover is rotatably connected to the storage sleeve, and the elastic buckle is movably connected inside the right-side card slot of the oscilloscope body.

[0011] The above technical solution of the present utility model has the following beneficial technical effects:

[0012] By providing a horizontally adjustable reference body on the left side of the oscilloscope in the present utility model, the cooperation of the pulley and the moving groove, the slider and the sliding groove enables the horizontal reference body to slide back and forth on the side of the oscilloscope. Then, the pin is fixed in the positioning hole by the spring to complete the fixation of the horizontal reference body, so that the laser lamp on the horizontal reference body can emit a horizontal laser line. After being reflected by the mirror, the laser line is more easily observed by the user. Through the comparison between the horizontal laser line and the waveform line, the user can more quickly and accurately judge whether it has been calibrated to the horizontal state when observing the waveform line, avoiding deviation and overshoot or insufficiency; at the same time, a storage sleeve for placing the calibration rod is provided on the right side of the oscilloscope, avoiding the loss of the calibration rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic bottom cross-sectional structure diagram of the present utility model;

[0014] Figure 2 is a schematic front view structure diagram of the present utility model;

[0015] Figure 3 is a schematic side view structure diagram of the present utility model;

[0016] Figure 4 is a schematic front cross-sectional structure diagram of the present utility model.

[0017] Reference numerals:

[0018] 1. Oscilloscope body; 101. Display screen; 102. Incomplete waveform line; 103. Interface; 104. Moving slot; 105. Sliding slot; 106. Positioning hole; 2. Connecting probe; 201. Calibration hole; 3. Roller; 4. Horizontal reference body; 401. Slide block; 402. Laser lamp; 403. Horizontal laser line; 5. Plug; 501. Spring; 6. Storage sleeve; 601. Flip cover; 602. Elastic buckle; 7. Calibration rod; 8. Reflector. Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the present utility model clearer and more apparent, the present utility model will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. In addition, in the following descriptions, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0020] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model.

[0021] The following describes a calibration device for an oscilloscope probe provided by some embodiments of the present utility model with reference to the accompanying drawings.

[0022] Embodiment 1:

[0023] Combined with Figures 1-4As shown in the figure, a calibration device for an oscilloscope probe provided by the present utility model includes an oscilloscope body 1. A moving groove 104, a sliding groove 105 and a positioning hole 106 are provided on the oscilloscope body 1. A roller 3 is movably arranged in the moving groove 104. A slider 401 is slidably arranged in the sliding groove 105. A horizontal reference body 4 is fixedly arranged on the slider 401. A laser lamp 402 is fixedly arranged on the horizontal reference body 4. A plug pin 5 is movably arranged on the horizontal reference body 4. A spring 501 is fixedly arranged on the plug pin 5. An interface 103 is fixedly arranged on the top of the oscilloscope body 1. A connecting probe 2 is movably arranged on the interface 103. A calibration hole 201 is provided on the connecting probe 2. A storage sleeve 6 is fixedly arranged on the right side surface of the oscilloscope body 1. A flip cover 601 is rotatably arranged on the storage sleeve 6. An elastic buckle 602 is fixedly arranged on the flip cover 601. A calibration rod 7 is movably arranged in the storage sleeve 6. A display screen 101 and a reflector 8 are arranged on the front surface of the oscilloscope body 1. An insufficient waveform line 102 is arranged on the display screen 101. A horizontal laser line 403 is arranged at the output end of the slider 401. The horizontal laser line 403 is horizontally reflected after reaching the reflector 8. The moving groove 104 and the sliding groove 105 are provided on the left side surface of the oscilloscope body 1. The diameter of the roller 3 is equal to the height of the moving groove 104. The shape of the slider 401 matches that of the sliding groove 105. The slider 401 is located on the side of the moving groove 104. A connecting rod is fixedly arranged on the moving groove 104. The connecting rod penetrates through the slider 401. The horizontal reference body 4 is rotatably connected to the connecting rod. A plurality of equally spaced positioning holes 106 are provided on the left side surface of the oscilloscope body 1. The same positioning holes 106 are also provided on the horizontal reference body 4. The plug pin 5 is movably connected in the positioning holes 106. One end of the spring 501 is fixedly connected to the plug pin 5. The other end of the spring 501 is fixedly connected to the horizontal reference body 4. The widths of both ends of the calibration rod 7 are equal to the diameter of the calibration hole 201. The flip cover 601 is rotatably connected to the storage sleeve 6. The elastic buckle 602 is movably connected inside the right side card slot of the oscilloscope body 1.

[0024] Specifically, a display screen 101 is provided on the oscilloscope body 1, which is used to display the image converted from the electrical signal, so that the staff can conveniently observe the circuit information. An interface 103 is provided on the top of the oscilloscope body 1, and a connection probe 2 is movably connected to the interface 103, so that the oscilloscope body 1 can measure the information of the object to be measured. A calibration hole 201 is opened on the connection probe 2, and the calibration rod 7 can penetrate into the calibration hole 201 and rotate, so as to adjust the connection probe 2, and then calibrate the information displayed on the display screen 101. The calibration rod 7 is movably placed in the storage sleeve 6 on the side of the oscilloscope body 1. The storage sleeve 6 is rotatably connected to a flip cover 601, and an elastic buckle 602 on the flip cover 601 is movably connected to the side of the oscilloscope body 1, so that the flip cover 601 can be opened and closed, thus facilitating the staff to take out or store the calibration rod 7. A moving groove 104 and a sliding groove 105 are opened on the left side surface of the oscilloscope body 1. A roller 3 is rotatably connected in the moving groove 104, and a slider 401 is slidably connected in the sliding groove 105. The slider 401 is fixedly welded to the horizontal reference body 4, and the roller 3 is rotatably connected to the horizontal reference body 4. When the roller 3 rolls in the moving groove 104, the slider 401 will slide in the sliding groove 105, and the horizontal reference body 4 will move on the side surface of the oscilloscope body 1. Positioning holes 106 are opened on both the side surface of the oscilloscope body 1 and the horizontal reference body 4. A plug 5 is movably arranged in the positioning hole 106. A spring 501 is fixedly welded to the plug 5, and the other end of the spring 501 is fixedly welded to the horizontal reference body 4, so that the plug 5 will move into the positioning hole 106 under the pulling force of the spring 501 and be fixed in the positioning hole 106 by the spring 501, thereby completing the fixation of the horizontal reference body 4. A laser lamp 402 is fixedly arranged on the horizontal reference body 4, and the laser lamp 402 can emit a horizontal laser line 403, so that the staff can compare the insufficient waveform line 102 on the display screen 101 with the slider 401, thereby observing whether the insufficient waveform line 102 is horizontal, and then judging whether the connection probe 2 is calibrated successfully, improving the calibration speed and accuracy.

[0025] Working principle and usage process of the present utility model: First, connect the connection probe 2 to the interface 103, and connect the calibration piece to the connection probe 2. Then start the oscilloscope body 1 for calibration. At this time, an insufficient waveform line 102 or an overshoot waveform line will be displayed on the display screen 101. Subsequently, pull out the pin 5 from the positioning hole 106 on the oscilloscope body 1, control the horizontal reference body 4 to move on the side of the oscilloscope body 1. After turning on the laser lamp 402, the laser lamp 402 will emit a horizontal laser line 403. Subsequently, the horizontal laser line 403 is reflected by the reflector 8 so that the user can more easily observe the horizontal laser line 403. Align the correct position of the horizontal laser line 403 with the insufficient waveform line 102, and release the pin 5. At this time, the spring 501 will pull the pin 5 back into the positioning hole 106 of the oscilloscope body 1, thereby fixing the horizontal reference body 4. Finally, open the flip cover 601, take out the calibration rod 7, and rotate the calibration rod 7 in the calibration hole 201 to calibrate and adjust the connection probe 2. Calibration can be completed after the line of the insufficient waveform line 102 coincides with the horizontal laser line 403.

[0026] It should be understood that the above specific embodiments of the present utility model are only used for exemplary illustration or explanation of the principle of the present utility model, and do not constitute a limitation to the present utility model. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present utility model shall be included within the protection scope of the present utility model. In addition, the appended claims of the present utility model are intended to cover all changes and modification examples falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. An oscilloscope probe calibration device, comprising an oscilloscope body (1), characterized in that, A moving groove (104), a sliding groove (105) and a positioning hole (106) are formed in the oscilloscope body (1). A roller (3) is movably arranged in the moving groove (104). A slider (401) is slidably arranged in the sliding groove (105). A horizontal reference body (4) is fixedly arranged on the slider (401). A laser lamp (402) is fixedly arranged on the horizontal reference body (4). A bolt (5) is movably arranged on the horizontal reference body (4). A spring (501) is fixedly arranged on the bolt (5). An interface (103) is fixedly arranged on the top of the oscilloscope body (1). A connecting probe (2) is movably arranged on the interface (103). A calibration hole (201) is formed in the connecting probe (2). A storage sleeve (6) is fixedly arranged on the right side surface of the oscilloscope body (1). A flip cover (601) is rotatably arranged on the storage sleeve (6). An elastic buckle (602) is fixedly arranged on the flip cover (601). A calibration rod (7) is movably arranged in the storage sleeve (6).

2. The oscilloscope probe calibration device according to claim 1, characterized in that, A display screen (101) and a reflector (8) are arranged on the front surface of the oscilloscope body (1). An insufficient waveform line (102) is arranged on the display screen (101). A horizontal laser line (403) is arranged at the output end of the slider (401). After reaching the reflector (8), the horizontal laser line (403) is horizontally reflected.

3. The oscilloscope probe calibration device according to claim 1, characterized in that, The moving groove (104) and the sliding groove (105) are formed in the left side surface of the oscilloscope body (1). The diameter of the roller (3) is equal to the height of the moving groove (104). The shape of the slider (401) matches that of the sliding groove (105).

4. The oscilloscope probe calibration device according to claim 1, characterized in that, The slider (401) is located on the side surface of the moving groove (104). A connecting rod is fixedly arranged on the moving groove (104). The connecting rod penetrates through the slider (401). The horizontal reference body (4) is rotatably connected to the connecting rod.

5. The oscilloscope probe calibration device according to claim 1, wherein, A plurality of equally spaced positioning holes (106) are formed in the left side surface of the oscilloscope body (1). Positioning holes (106) are also formed on the horizontal reference body (4). The bolt (5) is movably connected in the positioning holes (106). One end of the spring (501) is fixedly connected to the bolt (5). The other end of the spring (501) is fixedly connected to the horizontal reference body (4).

6. The oscilloscope probe calibration device according to claim 1, characterized in that, The widths of both ends of the calibration rod (7) are equal to the diameter of the calibration hole (201). The flip cover (601) is rotatably connected to the storage sleeve (6). The elastic buckle (602) is movably connected inside the right side slot of the oscilloscope body (1).

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