Low-cost electroencephalogram sensor detection tool
By designing a low-cost EEG sensor testing fixture and using gold-plated circuits to short-circuit the sensor's silver paste and the lead wire probes, non-destructive testing of the sensor and lead wires was achieved, solving the problem of high testing costs in existing technologies and ensuring that the sensor can be resold.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU APON MEDICAL TECHNOLOGY CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-05-01
AI Technical Summary
Existing technologies are costly to detect the size of EEG sensors and leads, cannot detect leads simultaneously, and may affect the resale of sensors.
Design a low-cost EEG sensor detection fixture. By shorting the silver paste of the sensor and the contact pin of the lead wire, the size can be detected separately. Gold-plated circuits are used for shorting and indication to achieve non-destructive testing.
It reduces testing costs, enables simultaneous testing of sensor and lead wire dimensions, and does not affect the resale of the sensor.
Smart Images
Figure CN224189152U_ABST
Abstract
Description
A low-cost EEG sensor detection fixture Technical Field
[0001] This utility model relates to the field of electroencephalogram (EEG) sensor detection technology, and in particular to a low-cost EEG sensor detection tooling. Background Technology
[0002] EEG sensors are used to collect brainwave signals, transmitting the acquired data to the EEG control unit via lead wires. Due to manufacturing limitations, the silver paste circuitry of the EEG sensor cannot make effective contact with the stylus pins inside the lead wires. To prevent out-of-tolerance EEG sensors and lead wires from entering the market, it is necessary to test the dimensions of both the EEG sensors and lead wires.
[0003] In existing technologies, some manufacturers use 2D projectors for incoming material inspection. While this can accurately detect the dimensions of the silver paste circuitry in sensors, it is costly, requires equipment purchase, and can only screen sensors, not lead wires. Other solutions involve physically matching the sensor and lead wires, which provides a more accurate reflection of how well the product functions. However, this only allows for random sampling, consumes a significant amount of sensors, and scratches the silver paste circuitry after the lead wires are properly matched, rendering the product unsellable.
[0004] There is an urgent need to design a universal, low-cost tooling that can quickly detect the size of EEG sensors and lead wires. Summary of the Invention
[0005] In the existing technology, there are costs involved in detecting the size of EEG sensors and leads, and the size of the leads cannot be detected.
[0006] To address the aforementioned issues, a low-cost EEG sensor testing fixture is proposed. By shorting the silver paste on the EEG sensor's connector on the testing fixture, the size of the silver paste on the connector is measured. By shorting the stylus on the EEG sensor's lead wire, the size of the stylus on the lead wire is measured. This reduces the testing cost of the EEG sensor fixture, allows for simultaneous testing of both the sensor and the lead wire, and is a non-destructive testing method that does not affect the resale of the sensor.
[0007] A low-cost EEG sensor detection fixture, comprising:
[0008] Fixed frame;
[0009] First detection component;
[0010] Second detection component;
[0011] The first detection component is movably connected to the fixed frame and is used to detect the size of the silver paste on the sensor connector by shorting the silver paste on the sensor connector of the EEG sensor.
[0012] The second detection component is disposed at one end of the fixture and is used to detect the size of the stylus of the EEG sensor by shorting the stylus on the lead wire.
[0013] In conjunction with the low-cost EEG sensor detection fixture described in this utility model, in a first possible embodiment, the first detection component includes:
[0014] Mobile mechanism;
[0015] Circuit board;
[0016] The circuit board is fixed to the bottom of the moving mechanism, and the moving mechanism drives the circuit board to move up and down.
[0017] The circuit board includes a gold finger detection section, on which a first gold-plated circuit is provided at a standard size. The first gold-plated circuit is used to short-circuit the silver paste of the sensor connector.
[0018] In conjunction with the first possible embodiment of this utility model, in the second possible embodiment, the fixing frame includes:
[0019] Fixed base;
[0020] Guide pillar;
[0021] beam;
[0022] The guide column is fixed between the fixed base and the crossbeam to provide vertical guidance for the moving mechanism.
[0023] In conjunction with the second possible embodiment of this utility model, and in the third possible embodiment, the moving mechanism includes a handle and a fixing plate;
[0024] The handle is fixed to the fixed plate, and the circuit board is fixed to the bottom of the fixed plate;
[0025] The fixing plate is provided with a guide hole, and the guide post passes through the guide hole.
[0026] In conjunction with the third possible embodiment of this utility model, and in the fourth possible embodiment, the moving mechanism further includes:
[0027] Elastic components;
[0028] The elastic element is sleeved on the guide post and is used to buffer the moving mechanism.
[0029] In a fifth possible embodiment of the low-cost EEG sensor detection fixture described in this utility model, the second detection component includes:
[0030] Connection interface;
[0031] Shorting board;
[0032] The connection interface is used to electrically connect the connection end of the conductor;
[0033] The shorting board is provided with a second gold-plated circuit according to standard dimensions, which is used to short-circuit the contact pin at the end to be tested of the lead wire.
[0034] In conjunction with the fifth possible implementation of this utility model, in the sixth possible implementation, the shorting plate is provided with a first protrusion and a second protrusion corresponding to the left limit and right limit of the end to be tested, respectively, so that the shorting plate is adapted to the internal space of the end to be tested, so as to short-circuit the probe of the end to be tested.
[0035] In conjunction with the low-cost EEG sensor detection fixture described in this utility model, in a seventh possible embodiment, the low-cost EEG sensor detection fixture further includes:
[0036] First instruction unit and second instruction unit;
[0037] The first indicator unit and the second indicator unit are electrically connected to the circuit board, respectively, and are used to indicate the size detection results of the sensor connector and the lead wire.
[0038] In conjunction with the seventh and eighth possible embodiments of this utility model, the first indicator unit includes three LEDs for LED light indication of the size detection result of the sensor connector.
[0039] In conjunction with the seventh possible implementation of this utility model, and in the ninth possible implementation, the second indicator unit includes two LEDs for LED light indication of the size detection result of the conductor wire.
[0040] This invention provides a low-cost EEG sensor testing fixture. By shorting the silver paste on the EEG sensor's connector on the testing fixture, the size of the silver paste on the connector is detected. By shorting the stylus on the EEG sensor's lead wire, the size of the stylus on the lead wire is detected. This reduces the testing cost of the EEG sensor fixture, can simultaneously inspect the sensor and the lead wire, and is a non-destructive testing method that does not affect the resale of the sensor. Attached Figure Description
[0041] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.
[0042] Figure 1 is an overall structural diagram of the low-cost EEG sensor detection fixture of this utility model;
[0043] Figure 2 is an overall structural diagram of the low-cost EEG sensor detection fixture and lead wire connection in this utility model.
[0044] Figure 3 is an exploded view of the low-cost EEG sensor detection fixture shown in Figure 2;
[0045] Figure 4 is a circuit board structure diagram of the low-cost EEG sensor detection fixture in this utility model.
[0046] Figure 5 is a front view structural diagram of the shorting board in the low-cost EEG sensor detection fixture of this utility model.
[0047] Figure 6 is a rear view structural diagram of the shorting board in the low-cost EEG sensor detection fixture of this utility model.
[0048] Figure 7 is an internal structural diagram of the end to be tested in the lead wire of this utility model;
[0049] The numbers in the attached diagram represent the following parts: 100 – Fixed frame, 110 – Fixed base, 120 – Crossbeam, 130 – Guide column, 211 – Fixed plate, 212 – Handle, 220 – Circuit board, 221 – Gold finger detection part, 2211 – First gold-plated circuit, 201 – Sensor connector, 310 – Connection interface, 301 – End to be tested, 302 – Lead wire connection, 3011 – Right limit, 3012 – Left limit, 3013 – Stylus, 320 – Shorting board, 321 – First protrusion, 322 – Second protrusion, 323 – Second gold-plated circuit, 400 – First indicating unit, 500 – Second indicating unit. Detailed Implementation
[0050] The technical solutions of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, other embodiments obtained by those skilled in the art without creative effort are all within the scope of protection of this utility model.
[0051] In the existing technology, there are costs involved in detecting the size of EEG sensors and leads, and the size of the leads cannot be detected.
[0052] To address the above issues, a low-cost EEG sensor detection fixture is proposed.
[0053] A low-cost EEG sensor testing fixture includes a fixed frame 100, a first testing component, and a second testing component. The first testing component is movably connected to the fixed frame 100 and is used to test the silver paste size of the sensor connector 201 by shorting the silver paste on the end 301 of the EEG sensor to be tested. The second testing component is located at one end of the fixed frame and is used to test the size of the stylus 3013 on the lead wire of the EEG sensor by shorting the silver paste on the sensor connector 201 of the EEG sensor. By shorting the silver paste on the sensor connector 201 of the EEG sensor on the testing fixture to test the size of the silver paste on the end 301 to be tested, and shorting the stylus 3013 on the lead wire of the EEG sensor to test the size of the stylus 3013, the testing fixture reduces the testing cost of the EEG sensor, can simultaneously test the sensor and the lead wire, and is a non-destructive testing method that does not affect the resale of the sensor.
[0054] The detection principle of the sensor connector 201 in this embodiment is as follows: The key dimension of the sensor connector 201 is the position of the three silver paste lines. After the sensor connector 201 is placed in the detection fixture, the gold plating circuit of the fixture group is short-circuited with the three silver paste lines of the sensor connector 201. When all three indicator lights of the first indicator unit 400 are lit, the silver paste position of the sensor connector 201 is correct and meets the standard requirements.
[0055] Further, as shown in Figures 1 and 2, Figure 1 is an overall structural diagram of the low-cost EEG sensor detection fixture of this utility model, and Figure 2 is an overall structural diagram of the low-cost EEG sensor detection fixture of this utility model connected with the lead wire; the first detection component includes a moving mechanism and a circuit board 220; the circuit board 220 is fixed at the bottom of the moving mechanism, and the moving mechanism drives the circuit board 220 to move up and down; as shown in Figure 4, Figure 4 is a structural diagram of the circuit board 220 in the low-cost EEG sensor detection fixture of this utility model; the circuit board 220 includes a gold finger detection part 221, and a first gold-plated circuit 2211 is provided on the gold finger detection part 221 according to standard dimensions. The first gold-plated circuit 2211 is used to short-circuit the silver paste of the sensor connector 201.
[0056] In this embodiment, the shorting plate 320 can be designed in the shape of the sensor connector 201. The shorting plate 320 is used to short the detection end 301, while the detection end 301 of the lead wire is used to connect to the sensor connector 201 of the EEG sensor. The silver paste of the sensor connector 201 can refer to the pattern of the second gold-plated circuit 323 on the back of the shorting plate 320.
[0057] Furthermore, as shown in Figure 3, which is an exploded view of the low-cost EEG sensor detection fixture in Figure 2; the fixed frame 100 includes a fixed base 110, a guide column 130, and a crossbeam 120; the guide column 130 is fixed between the fixed base 110 and the crossbeam 120 and is used to vertically guide the moving mechanism.
[0058] Furthermore, as shown in Figure 3, the moving mechanism includes a handle 212 and a fixed plate 211; the handle 212 is fixed on the fixed plate 211, and the circuit board 220 is fixed on the bottom of the fixed plate 211; the fixed plate 211 is provided with a guide hole, and the guide post 130 passes through the guide hole.
[0059] Furthermore, the moving mechanism also includes an elastic element; the elastic element is sleeved on the guide post 130 and is used to cushion the moving mechanism.
[0060] Furthermore, the second detection component includes a connection interface 310 and a shorting plate 320; the connection interface 310 is used to electrically connect the connection end of the lead wire; as shown in Figures 5 and 6, Figure 5 is a front view structural diagram of the shorting plate 320 in the low-cost EEG sensor detection fixture of this utility model, and Figure 6 is a rear view structural diagram of the shorting plate 320 in the low-cost EEG sensor detection fixture of this utility model; the shorting plate 320 is provided with a second gold-plated circuit 323 according to standard dimensions, which is used to short-circuit the stylus 3013 of the lead wire's test end 301.
[0061] During testing, the lead wire testing principle is as follows: The contact pin 3013 shown in Figure 7 includes contact pins 30131, 30132, and 30133. The relative positions of contact pins 30131, 30132, and 30133 to the reference point are crucial to the lead wire performance. Therefore, the left limit 3012 and right limit 3011 are designed as shown in Figure 7. The shorting plate 320 is inserted into the lead wire, ensuring that contact pins 30131, 30132, and 30133 are shorted. The two LEDs of the second indicating unit 500 remain constantly lit, indicating that its dimensions meet the specified requirements. The lead wire includes the lead wire connecting wire 302 and the end to be tested 301.
[0062] Furthermore, the shorting plate 320 is provided with a first protrusion 321 and a second protrusion 322 corresponding to the left limit 3012 and the right limit 3011 of the end to be tested 301, respectively, so that the shorting plate 320 is adapted to the internal space of the end to be tested 301, so as to short-circuit the stylus 3013 of the end to be tested 301, as shown in Figure 7. Figure 7 is an internal structural diagram of the end to be tested in the lead wire of this utility model.
[0063] Furthermore, as shown in Figures 1 and 2, the low-cost EEG sensor detection fixture also includes: a first indicator unit 400 and a second indicator unit 500; the first indicator unit 400 and the second indicator unit 500 are electrically connected to the circuit board 220 respectively, and are used to indicate the size detection results of the end to be detected 301 and the lead wire respectively.
[0064] Furthermore, as shown in Figures 1 and 2, the first indicating unit 400 includes three LEDs for indicating the dimensional detection results of the end 301 to be detected. As shown in Figures 1 and 2, the second indicating unit 500 includes two LEDs for indicating the dimensional detection results of the lead wire.
[0065] When conducting testing, turn on the power switch. The power indicator light will turn green, indicating that the fixture is ready for normal use.
[0066] As shown in Figures 1 and 2, use the handle 212 to lift the circuit board 220 (PCB board) fixing plate 211, and place the sensor connector 201 into the fixture. All three indicator lights in the first indicator unit 400 will light up (see Figures 1 and 2), indicating that the sensor silver paste size is qualified; otherwise, the sensor silver paste size is unqualified.
[0067] As shown in Figure 2, connect one end of the lead wire to the lead wire connection interface 310, and insert the other end 301 to be tested into the shorting plate 320. If both lead wire indicator lights of the second indicator unit 500 are lit, the position of the lead wire contact pin 3013 meets the design requirements; otherwise, the lead wire is unqualified.
[0068] This invention provides a low-cost EEG sensor testing fixture. By shorting the silver paste on the EEG sensor's test end 301 on the testing fixture, the size of the silver paste on the test end 301 is detected. By shorting the stylus 3013 on the EEG sensor's lead wire, the size of the stylus 3013 on the lead wire is detected. This reduces the testing cost of the EEG sensor fixture, can simultaneously inspect the sensor and the lead wire, and is a non-destructive test that does not affect the resale of the sensor.
[0069] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A low-cost EEG sensor detection fixture, characterized in that, include: Fixed frame; A first detection component; a second detection component; the first detection component is movably connected to the fixed frame and is used to detect the size of the silver paste on the sensor connector of the EEG sensor by shorting the silver paste on the sensor connector; the second detection component is disposed at one end of the fixed frame and is used to detect the size of the stylus on the lead wire of the EEG sensor by shorting the stylus on the lead wire.
2. The low-cost EEG sensor detection fixture according to claim 1, characterized in that, The first detection component includes: a moving mechanism; a circuit board; the circuit board is fixed to the bottom of the moving mechanism, and the moving mechanism drives the circuit board to move up and down; the circuit board includes a gold finger detection part, and the gold finger detection part is provided with a first gold-plated circuit according to a standard size, the first gold-plated circuit being used to short-circuit the silver paste of the sensor connector.
3. The low-cost EEG sensor detection fixture according to claim 2, characterized in that, The fixed frame includes: a fixed base; a guide column; and a crossbeam; the guide column is fixed between the fixed base and the crossbeam and is used to vertically guide the moving mechanism.
4. The low-cost EEG sensor detection fixture according to claim 3, characterized in that, The moving mechanism includes a handle and a fixed plate; the handle is fixed to the fixed plate, and the circuit board is fixed to the bottom of the fixed plate; the fixed plate is provided with a guide hole, and the guide post passes through the guide hole.
5. The low-cost EEG sensor detection fixture according to claim 4, characterized in that, The moving mechanism further includes an elastic element; the elastic element is sleeved on the guide post and is used to buffer the moving mechanism.
6. The low-cost EEG sensor detection fixture according to claim 1, characterized in that, The second detection component includes: a connection interface; a shorting board; the connection interface is used to electrically connect the connection end of the lead wire; the shorting board is provided with a second gold-plated circuit according to standard dimensions, which is used to short-circuit the contact pin of the lead wire's end to be tested.
7. The low-cost EEG sensor detection fixture according to claim 6, characterized in that, The shorting plate is provided with a first protrusion and a second protrusion corresponding to the left and right limits of the end to be tested, respectively, so that the shorting plate is adapted to the internal space of the end to be tested, so as to short-circuit the probe of the end to be tested.
8. The low-cost EEG sensor detection fixture according to claim 2, characterized in that, The low-cost EEG sensor detection fixture further includes: a first indicator unit and a second indicator unit; the first indicator unit and the second indicator unit are electrically connected to the circuit board respectively, and are used to indicate the size detection results of the sensor connector and the lead wire respectively.
9. The low-cost EEG sensor detection fixture according to claim 8, characterized in that, The first indicating unit includes three LEDs for indicating the size detection result of the sensor connector.
10. The low-cost EEG sensor detection fixture according to claim 8, characterized in that, The second indicator unit includes two LEDs for indicating the size detection results of the conductor wire.