CN214409162U - Myoelectricity biofeedback instrument testing device - Google Patents
Myoelectricity biofeedback instrument testing device Download PDFInfo
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- CN214409162U CN214409162U CN202120358162.8U CN202120358162U CN214409162U CN 214409162 U CN214409162 U CN 214409162U CN 202120358162 U CN202120358162 U CN 202120358162U CN 214409162 U CN214409162 U CN 214409162U
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- 238000012360 testing method Methods 0.000 title claims abstract description 106
- 230000001681 protective effect Effects 0.000 claims abstract description 8
- 230000003183 myoelectrical effect Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 238000012812 general test Methods 0.000 abstract description 20
- 230000010354 integration Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 238000010998 test method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
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- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
The utility model discloses a myoelectricity biofeedback instrument test device, which comprises a protective grounding terminal and a shielding shell, wherein the shielding shell is connected with the ground through the protective grounding terminal, and the protective grounding terminal, the shielding shell, a signal source interface I, a signal source interface II, the signal source grounding interface, a signal interface I of a general test circuit, a signal interface II of the general test circuit, a reference electrode interface, a signal interface I of a common mode rejection ratio test circuit and a signal interface II of the common mode rejection ratio test circuit jointly form the test circuit, the device can realize all functions of two test circuits of a general test circuit and a common mode rejection ratio test circuit required in the standard, and a user can select the corresponding test circuit to test according to test requirements. The device has reliable parameter performance, simple operation and high integration level.
Description
Technical Field
The utility model relates to a feedback appearance test device, in particular to flesh electricity biofeedback appearance test device belongs to the test field of flesh electricity biofeedback appearance product.
Background
The myoelectric biofeedback instrument (product to be tested) is used as a device for collecting body physiological signals, an input electrode of the product to be tested is required to be connected to a test signal source meeting requirements in the test process, in order to ensure the scientificity and accuracy of the test process, a standard makes clear provisions on a test circuit, a tester is required to be connected with the product to be tested and the signal source according to the standard requirements in the test process, under the current technical environment, the tester generally manufactures a test tool according to the standard requirements and then is connected with the device to be tested for testing, the test tool comprises two parts, the first part is a universal test circuit, the second part is a common mode rejection ratio test circuit, the two test circuit structures and parameters are different, therefore, the tester is required to manufacture the test tool respectively, and the factors such as the hand-handling capability, the process level and the component parameters of the tester can influence the accuracy of the test tool, under current technical environment, the experimenter needs oneself to make experimental frock according to standard requirement, and this kind of mode has multiple not enough and shortcoming, mainly shows as follows: 1. the test tool relates to the connection/welding and shielding of a circuit, so the operation ability and the process level of a tester can greatly influence the accuracy of the parameters of the test tool; 2. factors such as errors of component performance and parameters directly influence the accuracy of the test tool; 3. the tester makes experimental frock has additionally increased experimental work load, leads to work efficiency low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a flesh electricity biofeedback appearance test device to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the myoelectricity biofeedback instrument testing device comprises a protection grounding terminal and a shielding shell, wherein the shielding shell is connected with the ground through the protection grounding terminal, and the protection grounding terminal, the shielding shell, a signal source interface I, a signal source interface II, a signal source grounding interface, a signal interface I of a universal test circuit, a signal interface II of the universal test circuit, a reference electrode interface, a signal interface I of a common-mode rejection ratio test circuit and a signal interface II of the common-mode rejection ratio test circuit jointly form the test circuit.
Preferably, the protective earth terminal is internally connected with the shielding case, and a connection end is provided outside the protective earth terminal.
Preferably, the first signal source interface and the second signal source interface are internally connected with a test circuit, and the first signal source interface and the second signal source interface are respectively used for connecting a signal output anode and a signal output cathode of the signal source.
Preferably, the signal source grounding interface is connected with a grounding network or a signal output cathode of the signal source.
Preferably, the first signal interface of the general test circuit and the second signal interface of the general test circuit are internally connected with test electricity in the device, and the first signal interface of the general test circuit and the second signal interface of the general test circuit are respectively used for connecting a signal input positive electrode interface and a signal input negative electrode interface of a product to be tested.
Preferably, the reference electrode interface is internally connected with the shielding shell of the device and grounded.
Preferably, the first signal interface of the common mode rejection ratio test circuit and the second signal interface of the common mode rejection ratio test circuit are internally connected with the common mode rejection ratio test circuit, and the first signal interface of the common mode rejection ratio test circuit and the second signal interface of the common mode rejection ratio test circuit are respectively connected with the positive and negative signal input interfaces of the product to be tested.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a test device for flesh electricity biofeedback appearance, the device can realize the general test circuit of requirement in the standard and the all functions of two test circuits of common mode rejection ratio test circuit, and the user can select corresponding test circuit to test according to the test needs, and device parameter dependable performance, easy operation, this device integrated level is high, can satisfy the general test and the common mode rejection ratio test of standard requirement simultaneously; the device has high reliability, and the consistency of the parameters of the test circuit manufactured by adopting a printed circuit board mode is good, so that the precision and the accuracy of the test can be ensured; the device can improve the working efficiency of testers, does not need any extra preparation work when used for carrying out the myoelectricity biofeedback instrument test, and can be directly connected with a product to be tested and a signal source; the applicability is wide, and various physical interfaces are designed for each interface, so that various signal sources and products to be tested can be conveniently adapted.
Drawings
Fig. 1 is a schematic diagram of the circuit structure of the present invention;
FIG. 2 is a schematic diagram of a test method of the general test of the present invention;
fig. 3 is a schematic diagram of a test method of the common mode rejection ratio test of the present invention.
In the figure: 1. a protection ground terminal; 2. a shield case; 3. a signal source interface I; 4. a second signal source interface; 5. a signal source ground interface; 6. a first signal interface of the universal test circuit; 7. a second signal interface of the universal test circuit; 8. a reference electrode interface; 9. a signal interface I of the common mode rejection ratio test circuit; 10. and a second signal interface of the common mode rejection ratio test circuit.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the myoelectricity biofeedback instrument testing device comprises a protection grounding terminal 1 and a shielding shell 2, wherein the shielding shell 2 is connected with the ground through the protection grounding terminal 1, the protection grounding terminal 1 is used for grounding the equipment shielding shell 2 to provide complete grounding protection for equipment, and the specific implementation form of the myoelectricity biofeedback instrument testing device comprises but is not limited to a metal screw/hole, a special electrical connector, a conductive cable or a metal drag chain, and the protection grounding terminal 1, the shielding shell 2, a signal source interface I3, a signal source interface II 4, a signal source grounding interface 5, a signal interface I6 of a universal test circuit, a signal interface II 7 of the universal test circuit, a reference electrode interface 8, a signal interface I9 of a common mode rejection ratio test circuit and a signal interface II 10 of the common mode rejection ratio test circuit jointly form a test circuit.
The shielding shell 2 provides electromagnetic shielding protection for the internal circuit, and the specific implementation forms of the shielding shell 2 include but are not limited to a sheet metal shell formed by processing a metal plate, a shell formed by processing a metal section, and a shell made of other non-magnetic/conductive materials and coated with a magnetic/conductive coating or covering material.
The signal source interface I3 and the signal source interface II 4 are internally connected with a test circuit, the signal source interface I3 and the signal source interface II 4 are respectively used for connecting a signal output anode and a signal output cathode of a signal source, the signal output anode and the signal output cathode of the signal source can be connected according to requirements during use, and the implementation mode of the signal source interface I3 and the signal source interface II 4 comprises but is not limited to a metal screw/hole, a special electric connector or a conducting wire.
The signal source grounding interface 5 is connected to a grounding network or a signal output cathode of the signal source, and the implementation form of the signal source grounding interface includes but is not limited to a metal screw/hole, a dedicated electrical connector or a conductive wire.
The signal interface I6 of the general test circuit and the signal interface II 7 of the general test circuit are internally connected with test electricity in the device, the signal interface I6 of the general test circuit and the signal interface II 7 of the general test circuit are respectively used for connecting a signal input positive electrode interface and a signal input negative electrode interface of a product to be tested, the implementation modes of the device include but are not limited to metal screws/holes, special electric connectors or conductive cables, the using method of the device for carrying out the general test is shown in figure 2, the signal source interface I3 and the signal source interface II 4 are respectively connected with an output positive electrode and an output negative electrode of a signal source for the test, the signal interface I6 of the general test circuit and the signal interface II 7 of the general test circuit are respectively connected with an input positive electrode and an input negative electrode of the product to be tested, and a reference electrode interface 8 in the device is connected with a reference electrode of the product to be tested.
The reference electrode interface 8 is connected with the shielding case 2 of the device and grounded, and is connected with the reference electrode of the product to be tested according to the requirement in use, and the implementation form of the reference electrode interface includes but is not limited to a metal screw/hole, a special electrical connector or a conductive cable.
Wherein, the signal interface I9 of the common mode rejection ratio test circuit and the signal interface II 10 of the common mode rejection ratio test circuit are internally connected with the common mode rejection ratio test circuit, and the signal interface I9 of the common mode rejection ratio test circuit and the signal interface II 10 of the common mode rejection ratio test circuit are respectively connected with the signal input positive and negative electrode interfaces of the product to be tested, the implementation form of the device comprises but is not limited to a metal screw/hole, a special electrical connector or a conductive cable, the using method of the device for carrying out the common mode rejection ratio test is shown in figure 3, a signal source interface I3 is connected with the output anode of a signal source for the test, a signal source grounding interface 5 is connected with the cathode of the output signal source, a signal interface I9 of a common mode rejection ratio test circuit and a signal interface II 10 of the common mode rejection ratio test circuit are respectively connected with the input anode and the input cathode of a product to be tested, and a reference electrode interface 8 in the device is connected with the reference electrode of the product to be tested.
Specifically, when the utility model is used, the inside of the dotted line part in fig. 1 is the circuit diagram of the device, according to the standard requirement, R1 is a resistor, and the resistance value is 100k omega +/-0.1%; r2 is a resistor with a resistance value of 100 omega +/-0.1%; a capacitor with a capacitance value of 4.7nF at C1 bit; r3 is a resistor with a resistance value of 620K omega; s1 is a switch, and is normally closed in a general test; c2 is a capacitor with a capacitance value of 47 nF; r4 is a resistor with a resistance value of 51k omega; c3 is a capacitor with a capacitance value of 47 nF; r5 is resistance, resistance is 51k omega, the circuit in the device realizes carrier form including but not limited to Printed Circuit Board (PCB), the direct connection/welding of component; the method comprises the steps of designing the position and the size of each component and each lead according to a circuit diagram, processing the printed circuit board, and finally welding the components meeting the requirements on the designed position; directly connecting/welding the electrical pins of each component according to the requirements of a circuit diagram to form a device entity meeting the requirements by using a direct component connection/welding mode, namely without any carrier; in order to improve the practicability of the device, the physical interface of each input/output interface of the device is not limited to one, namely a plurality of physical interfaces can be designed for each interface, the plurality of interfaces are only different in appearance, and are internally connected with the same circuit node, so that a user can conveniently connect different signal sources or myoelectric biofeedback instrument products, and analysis is carried out by combining with an embodiment: the protective grounding terminal GP adopts a metal screw rod with the diameter of 3mm, the shielding shell 2 is formed by processing an aluminum alloy section and a plate, the shielding shell 2 with the shape of a cuboid is manufactured, corresponding interface holes are manufactured on the shielding shell 2, each interface is only provided with one physical interface, the signal input interface signal source interface I3, the signal source interface II 4 and the signal source grounding interface 5 adopt BNC coaxial connectors, the signal interface I6 of the signal interface general test circuit, the signal interface II 7 of the signal interface general test circuit, the reference electrode interface 8, the signal interface I9 of the common mode rejection ratio test circuit and the signal interface II 10 of the common mode rejection ratio test circuit adopt BNC coaxial connectors, the internal circuit adopts a printed circuit board as a carrier, R1, R2, R3, R4 and R5 resistance elements all adopt surface-mounted precise chip resistors, C1, The C2 and C3 capacitors adopt laminated ceramic body capacitors.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The myoelectricity biofeedback instrument testing device is characterized by comprising a protection grounding terminal (1) and a shielding shell (2), wherein the shielding shell (2) is connected with the ground through the protection grounding terminal (1), and the protection grounding terminal (1), the shielding shell (2), a signal source interface I (3), a signal source interface II (4), a signal source grounding interface (5), a signal interface I (6) of a universal test circuit, a signal interface II (7) of the universal test circuit, a reference electrode interface (8), a signal interface I (9) of a common-mode rejection ratio test circuit and a signal interface II (10) of the common-mode rejection ratio test circuit jointly form a test circuit.
2. The myoelectric biofeedback meter testing device according to claim 1, characterized in that: the protective grounding terminal (1) is internally connected with the shielding shell (2), and a connecting end is provided outside the protective grounding terminal (1).
3. The myoelectric biofeedback meter testing device according to claim 1, characterized in that: the signal source interface I (3) and the signal source interface II (4) are internally connected with a test circuit, and the signal source interface I (3) and the signal source interface II (4) are respectively used for connecting a signal output anode and a signal output cathode of a signal source.
4. The myoelectric biofeedback meter testing device according to claim 1, characterized in that: the signal source grounding interface (5) is connected with a grounding network or a signal output cathode of the signal source.
5. The myoelectric biofeedback meter testing device according to claim 1, characterized in that: the testing circuit comprises a signal interface I (6) of the general testing circuit and a signal interface II (7) of the general testing circuit, wherein the signal interface I (6) of the general testing circuit and the signal interface II (7) of the general testing circuit are internally connected with testing electricity in a device, and the signal interface I (6) of the general testing circuit and the signal interface II (7) of the general testing circuit are respectively used for connecting signal input positive and negative electrode interfaces of a product to be tested.
6. The myoelectric biofeedback meter testing device according to claim 1, characterized in that: the reference electrode interface (8) is internally connected with the shielding shell (2) of the device and grounded.
7. The myoelectric biofeedback meter testing device according to claim 1, characterized in that: the signal interface I (9) of the common mode rejection ratio test circuit and the signal interface II (10) of the common mode rejection ratio test circuit are internally connected with the common mode rejection ratio test circuit, and the signal interface I (9) of the common mode rejection ratio test circuit and the signal interface II (10) of the common mode rejection ratio test circuit are respectively connected with a signal input positive electrode interface and a signal input negative electrode interface of a product to be tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120358162.8U CN214409162U (en) | 2021-02-06 | 2021-02-06 | Myoelectricity biofeedback instrument testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120358162.8U CN214409162U (en) | 2021-02-06 | 2021-02-06 | Myoelectricity biofeedback instrument testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214409162U true CN214409162U (en) | 2021-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120358162.8U Expired - Fee Related CN214409162U (en) | 2021-02-06 | 2021-02-06 | Myoelectricity biofeedback instrument testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214409162U (en) |
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2021
- 2021-02-06 CN CN202120358162.8U patent/CN214409162U/en not_active Expired - Fee Related
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