Ultrasonic cable sequence testing device
The component array test board of the ultrasonic cable sequence testing device solves the problems of complex equipment and high cost in the existing technology, realizes fast and low-cost cable sequence testing, and simplifies the testing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI SHENGYI ELECTRONIC TECH CO LTD
- Filing Date
- 2025-04-23
- Publication Date
- 2026-04-21
AI Technical Summary
Existing ultrasonic cable assembly wiring sequence testing methods require complex equipment, have high testing requirements and are costly. They cannot adapt to the situation of parallel inductors inside the cable assembly, and different products require different testing equipment, which takes up a lot of space.
An ultrasonic cable sequence testing device is used to quickly determine the cable sequence by connecting resistors, inductors, or capacitors in series or parallel through an array of components on a test board. The printed circuit board design simplifies the testing process and reduces costs and space requirements.
It enables rapid and low-cost cable sequence testing, eliminating the need for ultrasonic transducers and transmit-return channels, simplifying testing operations and reducing equipment costs and space requirements.
Smart Images
Figure CN224152629U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable sequence testing technology, and more particularly to an ultrasonic cable cable sequence testing device. Background Technology
[0002] In medical ultrasound applications, most ultrasound transducers are arranged in an array. The transducer array and the ultrasound host's channels have a strict correspondence. Therefore, a multi-core cable assembly is required between the ultrasound transducer and the ultrasound host, and proper connection must be ensured. Incorrect cable assembly connection will affect ultrasound image quality, leading to misdiagnosis or inability to diagnose. Therefore, testing the wiring sequence of the ultrasound cable assembly is crucial.
[0003] The existing test sequence schemes mainly include: (1) Testing through a light box. The light box is equipped with N LEDs and numbered. One end of the LED is A and the other end is B. One end of the ultrasonic cable assembly containing N core wires is C and the other end is D. Connect the C end of the ultrasonic cable assembly to the A end of the LED so that the N core wires in the cable assembly are connected to the N LEDs. The B end of the LED is connected in parallel to the common conductor. During the test, one end of the power supply is connected to the common conductor connected to the B end of the LED. The other end of the power supply is manually touched to the core wires at the D end of the cable assembly in turn to form a circuit. When a certain core wire is checked, the corresponding LED lights up, thus confirming whether the core wire sequence is correct. However, this test method has the following disadvantages: different products of cables have different plugs and wire sequences, so different light boxes need to be made and used, which takes up production time and storage space; when there is a parallel inductance between the core wire and the ground inside the cable assembly, since the DC resistance of the inductance is very small, it is equivalent to a short circuit between the core wire and the signal ground, so this scheme cannot be used. (2) Using electronic continuity testing instead of manual testing, both ends of the ultrasonic cable assembly are simultaneously connected to the electronic testing equipment, and the continuity of each core wire, i.e., each channel, is tested one by one. However, this testing method has the following disadvantages: the electronic continuity testing equipment and its testing fixtures are expensive; when there is a parallel inductance between the core wire and ground inside the cable assembly, the DC resistance of the inductance is extremely small, which is equivalent to a short circuit between the core wire and the signal ground, so this method cannot be used. (3) Testing by connecting an ultrasonic transducer, one end of the ultrasonic cable assembly is connected to a high-performance ultrasonic transducer, and a pulse generator is used at the other end of the ultrasonic cable assembly to emit pulse signals in sequence to excite the ultrasonic transducer. At the same time, an oscilloscope is used at this end of the ultrasonic cable assembly to receive and test the return time of the ultrasonic signal, and then the correctness of the cable assembly wiring sequence is deduced. However, the disadvantage of this testing method is that it requires the establishment of signal transmission and return channels, which has high requirements for testing conditions. Therefore, there is an urgent need for a testing method with less requirement for testing conditions, shorter testing time, and lower cost. Utility Model Content
[0004] The purpose of this invention is to provide an ultrasonic cable sequence testing device that allows testing to begin simply by connecting an ultrasonic cable assembly, without the need for an ultrasonic transducer. Therefore, it eliminates the need to establish ultrasonic transmission and return channels, resulting in shorter testing time, less stringent testing requirements, and lower costs.
[0005] The technical solution provided by this utility model is as follows:
[0006] This utility model provides an ultrasonic cable sequence testing device, comprising:
[0007] A test board, wherein the test board is provided with an input port, the input port being used to connect one end of the cable to be tested;
[0008] The test board is also provided with a component array, which includes several test channels. One end of each test channel is connected to the input port, and the number of test channels corresponds to the number of cables in the cable to be tested. The other end of each test channel is grounded. Each test channel is connected to a test component, and the parameters of each test component are different, so that the parameters of each test component can form a second parameter sequence according to the order of the test channels.
[0009] The other end of the cable under test is connected to a testing device. The testing device is used to measure the first parameter sequence corresponding to each wire of the cable under test when the cable under test is inserted into the input port, and to determine whether the wire sequence of the cable under test is correct based on whether the first parameter sequence is consistent with the second parameter sequence corresponding to each of the test components.
[0010] In some implementations, the test component is a resistor.
[0011] In some implementations, the test channels are connected in parallel, and the test components on each test channel are connected in parallel.
[0012] In some implementations, the test channels are arranged in parallel, and one of the test components is located between the test channel at the edge and ground, while the remaining test components are connected in parallel between two adjacent test channels.
[0013] In some implementations, the resistance values of the various test components are arranged linearly according to the order of the test channels.
[0014] In some embodiments, when the testing device measures an infinite resistance value for a certain test channel, it determines that the cable to be tested corresponding to that test channel is disconnected.
[0015] When the resistance value of a certain test channel is infinitely small, the test device determines that the cable to be tested corresponding to that test channel is short-circuited to ground.
[0016] In some implementations, the resistance values of each of the test components are equal.
[0017] In some embodiments, when the testing device measures an infinite resistance value for a certain test channel, it determines that the cable to be tested corresponding to that test channel is disconnected.
[0018] When the test device measures a resistance value corresponding to a certain test channel that differs from the theoretical resistance value by the resistance value of one test component, it determines that the cable to be tested corresponding to that test channel is short-circuited to ground.
[0019] In some implementations, the test component is an inductor or a capacitor.
[0020] In some embodiments, the system further includes an adapter board, which includes an output port and a plurality of sub-input ports, the sub-input ports being adapted to the cable under test, the output port being connected to each of the sub-input ports and to the input port.
[0021] According to the ultrasonic cable sequence testing device provided by this utility model, the test can be started by connecting the ultrasonic cable assembly without the need for an ultrasonic transducer. Therefore, it is not necessary to establish an ultrasonic transmission and return channel, the test time is shorter, the requirements for test conditions are less, and the cost is lower. Attached Figure Description
[0022] The preferred embodiments will be described below in a clear and easy-to-understand manner, with reference to the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this solution.
[0023] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;
[0024] Figure 2 This is a schematic diagram of another embodiment of the present invention;
[0025] Figure 3 This is a structural schematic diagram of yet another embodiment of the present utility model;
[0026] Figure 4 This is a structural schematic diagram of another embodiment of the present invention.
[0027] The numbers in the diagram are: 10-Test board; 20-Component array; 30-Input port; 40-Adapter board. Detailed Implementation
[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.
[0029] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."
[0030] In medical ultrasound applications, most ultrasound transducers are arranged in an array. The transducer array and the ultrasound host's channels have a strict correspondence. Therefore, a multi-core cable assembly is required between the ultrasound transducer and the ultrasound host, and proper connection must be ensured. Incorrect cable assembly connection will affect ultrasound image quality, leading to misdiagnosis or inability to diagnose. Therefore, testing the wiring sequence of the ultrasound cable assembly is crucial.
[0031] The existing test sequence schemes mainly include: (1) Testing through a light box. The light box is equipped with N LEDs and numbered. One end of the LED is A and the other end is B. One end of the ultrasonic cable assembly containing N core wires is C and the other end is D. Connect the C end of the ultrasonic cable assembly to the A end of the LED so that the N core wires in the cable assembly are connected to the N LEDs. The B end of the LED is connected in parallel to the common conductor. During the test, one end of the power supply is connected to the common conductor connected to the B end of the LED. The other end of the power supply is manually touched to the core wires at the D end of the cable assembly in turn to form a circuit. When a certain core wire is checked, the corresponding LED lights up, thus confirming whether the core wire sequence is correct. However, this test method has the following disadvantages: different products of cables have different plugs and wire sequences, so different light boxes need to be made and used, which takes up production time and storage space; when there is a parallel inductance between the core wire and the ground inside the cable assembly, since the DC resistance of the inductance is very small, it is equivalent to a short circuit between the core wire and the signal ground, so this scheme cannot be used. (2) Using electronic continuity testing instead of manual testing, both ends of the ultrasonic cable assembly are simultaneously connected to the electronic testing equipment, and the continuity of each core wire, i.e., each channel, is tested one by one. However, this testing method has the following disadvantages: the electronic continuity testing equipment and its testing fixtures are expensive; when there is a parallel inductance between the core wire and ground inside the cable assembly, the DC resistance of the inductance is extremely small, which is equivalent to a short circuit between the core wire and the signal ground, so this method cannot be used. (3) Testing by connecting an ultrasonic transducer, one end of the ultrasonic cable assembly is connected to a high-performance ultrasonic transducer, and a pulse generator is used at the other end of the ultrasonic cable assembly to emit pulse signals in sequence to excite the ultrasonic transducer. At the same time, an oscilloscope is used at this end of the ultrasonic cable assembly to receive and test the return time of the ultrasonic signal, and then the correctness of the cable assembly wiring sequence is deduced. However, the disadvantage of this testing method is that it requires the establishment of signal transmission and return channels, which has high requirements for testing conditions. Therefore, there is an urgent need for a testing method with less requirement for testing conditions, shorter testing time, and lower cost.
[0032] This application connects ultrasonic cable assemblies to a wiring sequence test board. By connecting different electronic components such as resistors, capacitors, and inductors in series or parallel on the wiring sequence board, the wiring sequence of the ultrasonic cable assembly can be quickly read and tested to determine whether the ultrasonic cable assembly has a short circuit or open circuit, and to display the corresponding error channel number. The wiring sequence test board uses a printed circuit board design with reserved input ports for easy insertion and removal of ultrasonic cable assemblies. Standard pads are placed in series on each channel of the ultrasonic cable assembly, allowing for the soldering of resistors, capacitors, inductors, or other electronic components as needed. Using a printed circuit board allows for the direct soldering of required components using mature SMT technology, avoiding the tedious soldering and installation process during the wiring sequence test board manufacturing process, saving time and avoiding human error. The wiring sequence test board manufactured using printed circuit board technology is inexpensive to produce, compact in size, and occupies very little storage space, eliminating the need to purchase dedicated electronic conduction equipment. In addition, when using this wiring sequence test board, testing can begin simply by connecting the ultrasonic cable assembly, without the need for an ultrasonic transducer. Therefore, there is no need to establish ultrasonic transmission and return channels, resulting in shorter testing time, less stringent testing requirements, and lower costs. The present application will now be described in detail with reference to the accompanying drawings:
[0033] In one embodiment, refer to the appendix to the specification. Figures 1 to 3 This utility model provides an ultrasonic cable wiring sequence testing device, including a test board 10, an input port 30 for connecting one end of the cable to be tested, and a component array 20 for the test board 10. The component array 20 includes several test channels, one end of which is connected to the input port 30, and the number of test channels corresponds to the number of cables in the cable to be tested. The other end of the test channel is grounded, and each test channel is connected to a test component with different parameters, so that the parameters of each test component can form a second parameter sequence according to the order of the test channels. The other end of the cable to be tested is connected to the testing device, which measures the first parameter sequence corresponding to each cable in the cable to be tested when the cable to be tested is inserted into the input port 30, and determines whether the wiring sequence of the cable to be tested is correct based on whether the first parameter sequence is consistent with the second parameter sequence corresponding to each test component.
[0034] Specifically, since the parameters of the test components on each test channel are different, when the cable under test is inserted into input port 30, if the cable sequence is correct, the first parameter sequence composed of the test parameters of the test components of each test channel corresponding to each cable under test, measured by the testing device, should be consistent with the second parameter sequence. If they are inconsistent, it can be determined that the cable sequence is incorrect. Furthermore, by determining which parameter in the parameter sequence is incorrect, the specific cable in the cable under test can be directly identified as the one with the error. This solution simplifies the cable sequence testing, requires no complex equipment, is more convenient to operate, and has a lower cost.
[0035] The test components can be resistors, inductors, capacitors, etc., and this application makes no restrictions. The following is a detailed description of this solution using a resistor as an example.
[0036] In a specific implementation, such as Figure 2 As shown, the test channels are connected in parallel, and the test components on each test channel are also connected in parallel. The resistance values of each test component are arranged linearly according to the order of the test channels, for example, linearly arranged in descending order or linearly arranged in ascending order. Under this test condition, if the test device measures an infinite resistance value for a certain test channel, it can be determined that the cable under test corresponding to that test channel is disconnected; if the test device measures an infinite resistance value for a certain test channel, it can be determined that the cable under test corresponding to that test channel is short-circuited to ground.
[0037] For example, according to the test channel sequence, the resistance values of each test component are 1X, 2X, 3X, ..., nX. The ultrasonic cable assembly is connected to the test board 10 via the input interface. Each channel is connected in series with resistors of different resistance values. At the other end of the ultrasonic cable assembly, the resistance to ground of each cable core channel is tested sequentially. If the measured resistance value matches the corresponding resistance to ground value, the wiring sequence is correct. If the measured resistance value does not match the corresponding resistance value, the incorrect channel number can be quickly deduced from the measured resistance value for rework. For example, if the ultrasonic cable assembly has n channels: a) if the measured resistance to ground values should be 1X, 2X, 3X, ..., nX, then the wiring sequence of the ultrasonic cable assembly can be deduced to be 1, 2, 3...n, which is correct; b) if the measured resistance to ground values are not linearly arranged, such as 1X, 2X, 4X, 3X, ..., nX, then it can be deduced that the core wire positions of channels 4 and 3 are incorrect and rework is required; c) if the resistance of channel 1 is infinite or infinitesimal (close to 0) when tested, then it can be deduced that the core wire of channel 1 is broken or short-circuited to ground, requiring rework. In other embodiments, test components with other parameters can also be selected, which is not limited in this application.
[0038] In a specific implementation, such as Figure 3 As shown, the test channels are connected in parallel, with one test component positioned between the edge test channel and ground. The remaining test components are connected in parallel between adjacent test channels. All test components have equal resistance values. Under these test conditions, if the testing device measures an infinite resistance value for a particular test channel, it can be determined that the cable under test corresponding to that test channel is disconnected. If the testing device measures a resistance value for a particular test channel that differs from the theoretical resistance value by the resistance value of one test component, it can be determined that the cable under test corresponding to that test channel is short-circuited to ground.
[0039] For example, according to the sequence of test channels, the test components are numbered X in order. Connect the ultrasonic cable assembly to the test board 10 via the input interface. Connect each channel in series with resistors of different resistance values. At the other end of the ultrasonic cable assembly, test the resistance to ground of each cable core channel sequentially, or test the resistance between cable core channels. If the measured resistance value matches the corresponding resistance to ground value, the wiring sequence is correct. If the measured resistance value does not match the corresponding resistance value, the incorrect channel number can be quickly deduced from the measured resistance value for rework.
[0040] For example, if the ultrasonic cable assembly has n channels: d) If the measured resistance to ground values should be nX, (n-1)X, (n-2)X, (n-3)X, ..., 3X, 2X, 1X, then the wiring sequence of the ultrasonic cable assembly can be deduced to be 1, 2, 3...n, which is correct; e) If the measured resistance to ground values are not linearly arranged, such as nX, (n-1)X, (n-3)X, (n-2)X, ..., 3X, 2X, 1X, then it can be deduced that the core wire positions of channels 4 and 3 are incorrect and rework is required; f) If the resistance of channel 1 is infinite or (n-1)X when tested, then it can be deduced that the core wire of channel 1 is broken or short-circuited to ground, requiring rework. In other embodiments, test components with other parameters can also be selected, which is not limited in this application.
[0041] Since the ports of ultrasonic cable assemblies are not all the same, they cannot be adapted to the same test board 10. This application can design an adapter board 40 to connect the cable assembly to the test board 10 through the adapter board 40, so that one test board 10 can correspond to different ultrasonic cable assemblies, and can also reduce the loss of the test board 10 caused by frequent plugging and unplugging.
[0042] In one embodiment, such as Figure 4 As shown, this utility model provides an ultrasonic cable sequence testing device, which also includes: an adapter plate 40, the adapter plate 40 including an output port and several sub-input ports, the sub-input ports being used to adapt to the cable to be tested, the output port being connected to each sub-input port, and also connected to the input port.
[0043] It should be noted that the above embodiments can be freely combined as needed. The above description is only a preferred embodiment of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. An ultrasonic cable wire sequence testing apparatus, characterized by, include: A test board, wherein the test board is provided with an input port, the input port being used to connect one end of the cable to be tested; The test board is also provided with a component array, which includes several test channels. One end of each test channel is connected to the input port, and the number of test channels corresponds to the number of cables in the cable to be tested. The other end of each test channel is grounded. Each test channel is connected to a test component, and the parameters of each test component are different, so that the parameters of each test component can form a second parameter sequence according to the order of the test channels. The other end of the cable under test is connected to a testing device. The testing device is used to measure the first parameter sequence corresponding to each wire of the cable under test when the cable under test is inserted into the input port, and to determine whether the wire sequence of the cable under test is correct based on whether the first parameter sequence is consistent with the second parameter sequence corresponding to each of the test components.
2. An ultrasonic cable sequence testing apparatus according to claim 1, wherein, The test component is a resistor.
3. An ultrasonic cable sequence testing apparatus according to claim 2, wherein, Each of the test channels is connected in parallel, and the test components on each of the test channels are connected in parallel.
4. An ultrasonic cable sequence testing apparatus according to claim 2, wherein, Each of the test channels is connected in parallel, and one of the test components is located between the test channel at the edge and ground, while the remaining test components are connected in parallel between two adjacent test channels.
5. An ultrasonic cable sequence testing apparatus according to claim 3, wherein, The resistance values of each of the test components are arranged linearly according to the order of the test channels.
6. The ultrasonic cable sequence testing device according to claim 5, characterized in that, When the testing device measures an infinite resistance value for a certain test channel, it determines that the cable to be tested corresponding to that test channel is disconnected. When the resistance value of a certain test channel is infinitely small, the test device determines that the cable to be tested corresponding to that test channel is short-circuited to ground.
7. An ultrasonic cable sequence testing apparatus according to claim 4, wherein, The resistance values of all the test components are equal.
8. An ultrasonic cable sequence testing apparatus according to claim 7, wherein, When the testing device measures an infinite resistance value for a certain test channel, it determines that the cable to be tested corresponding to that test channel is disconnected. When the test device measures a resistance value corresponding to a certain test channel that differs from the theoretical resistance value by the resistance value of one test component, it determines that the cable to be tested corresponding to that test channel is short-circuited to ground.
9. An ultrasonic cable sequence testing apparatus as defined in claim 1, wherein, The test components are inductors or capacitors.
10. An ultrasonic cable sequence testing apparatus as defined in claim 1, wherein, Also includes: The adapter board includes an output port and several sub-input ports. The sub-input ports are used to adapt the cable to be tested. The output port is connected to each of the sub-input ports and to the input port.