A multi-channel signal generating device and TCS test system
By connecting a multi-channel signal generator to the signal input terminal of the TCS and using potentiometers and conductive circuits to achieve impedance adjustment, the problem of redundant analog logic testing in TCS debugging is solved, thus improving debugging efficiency and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA UNITED GAS TURBINE TECH CO LTD
- Filing Date
- 2026-03-19
- Publication Date
- 2026-06-16
AI Technical Summary
During TCS debugging, it is difficult to quickly and accurately perform redundant analog logic tests, resulting in low debugging efficiency and high cost.
A multi-channel signal generator is provided, which connects to the signal input terminal of TCS through multiple potentiometers and conductive circuits to achieve impedance adjustment of multiple signal input terminals. By utilizing the integrated arrangement of potentiometers and impedance control, TCS testing can be performed quickly and accurately.
This enables fast and accurate testing of redundant analog logic in TCS, improving debugging efficiency and reducing debugging costs.
Smart Images
Figure CN224366347U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of heavy-duty gas turbine technology, and in particular to a multi-channel signal generator and a TCS testing system. Background Technology
[0002] A heavy-duty gas turbine is a large rotary power machine that uses natural gas or diesel fuel and converts thermal energy into mechanical energy through the Brayton cycle. Its core structure consists of three main components: the compressor, the combustion chamber, and the turbine. Air is compressed by a multi-stage axial-flow compressor and then enters the annular combustion chamber to mix and burn with fuel. The resulting high-temperature, high-pressure gas drives the multi-stage turbine blades to do work. About two-thirds of the power is used to drive the compressor, and the remaining one-third is used as effective output.
[0003] The TCS (Gas Turbine Control System) is the core control system that determines the performance and safety of a gas turbine. It is responsible for the critical control operations throughout the entire process of the gas turbine, from startup, grid connection, normal operation to shutdown. During TCS commissioning, it is difficult to quickly and accurately perform redundant analog logic tests, such as two-out-of-three protection logic, resulting in low commissioning efficiency and high commissioning costs. Utility Model Content
[0004] This disclosure aims to at least partially address one of the technical problems in the related art.
[0005] Therefore, the purpose of this disclosure is to provide a multi-channel signal generator and a TCS test system.
[0006] To achieve the above objectives, a first aspect of this disclosure provides a multi-channel signal generating device, comprising: a housing; a plurality of potentiometers, wherein the plurality of potentiometers are respectively disposed on the housing, and the impedance terminals of the potentiometers are located inside the housing, and the adjustment terminals of the potentiometers are located outside the housing; and a terminal block, wherein the terminal block is disposed on the housing, and the terminal block includes: a plurality of conductive loops, wherein a first end of the conductive loop is located inside the housing, and a second end of the conductive loop is located outside the housing; wherein the first ends of the plurality of conductive loops are respectively connected to the impedance terminals of the plurality of potentiometers, and the second ends of the plurality of conductive loops are respectively connected to a plurality of signal input terminals of a TCS; at least one of the potentiometers is used to adjust to a target impedance to test the control action of the TCS.
[0007] Optionally, the plurality of potentiometers includes: a first potentiometer and a second potentiometer, the first potentiometer and the second potentiometer being respectively disposed on the housing, and the impedance terminals of the first potentiometer and the second potentiometer being respectively located on the inner side of the housing, and the adjustment terminals of the first potentiometer and the second potentiometer being respectively located on the outer side of the housing; the plurality of conductive circuits includes: a first conductive circuit and a second conductive circuit, the first ends of the first conductive circuit and the second conductive circuit being respectively located on the inner side of the housing, and the second ends of the first conductive circuit and the second conductive circuit being respectively located on the outer side of the housing; the first end of the first conductive circuit is connected to the impedance terminal of the first potentiometer, and the second end of the first conductive circuit is connected to the first signal input terminal of the TCS; the first end of the second conductive circuit is connected to the impedance terminal of the second potentiometer, and the second end of the second conductive circuit is connected to the second signal input terminal of the TCS.
[0008] Optionally, the plurality of potentiometers further includes: a third potentiometer, the third potentiometer being disposed on the housing, with its impedance terminal located inside the housing and its adjustment terminal located outside the housing; the plurality of conductive circuits include: a third conductive circuit, the first end of which is located inside the housing and the second end of which is located outside the housing; the first end of the third conductive circuit is connected to the impedance terminal of the third potentiometer, and the second end of the third conductive circuit is connected to the third signal input terminal of the TCS.
[0009] Optionally, the first potentiometer and the second potentiometer are respectively adjusted to the target impedance to test the control action of the TCS; or, the first potentiometer and the third potentiometer are respectively adjusted to the target impedance to test the control action of the TCS; or, the second potentiometer and the third potentiometer are respectively adjusted to the target impedance to test the control action of the TCS.
[0010] Optionally, the conductive circuit includes: a first conductive channel and a second conductive channel; wherein, the first ends of the first conductive channel and the second conductive channel are respectively located inside the housing, and the second ends of the first conductive channel and the second conductive channel are respectively located outside the housing; the first end of the first conductive channel is connected to the first end of the potentiometer impedance terminal, and the second end of the first conductive channel is connected to the first end of the TCS signal input terminal; the first end of the second conductive channel is connected to the second end of the potentiometer impedance terminal, and the second end of the second conductive channel is connected to the second end of the TCS signal input terminal.
[0011] Optionally, the housing includes: a shell having a receiving groove, wherein the impedance end of the potentiometer and the first end of the conductive circuit are respectively located in the receiving groove; and a cover detachably covering the opening of the receiving groove.
[0012] Optionally, the housing further includes a sealing ring, which is disposed along the opening of the receiving groove and is located between the cover and the opening of the receiving groove.
[0013] Optionally, the housing is provided with a plurality of spaced potential holes, and a plurality of potentiometers pass through the plurality of potential holes respectively, and a sealant is provided between the potentiometers and the potential holes.
[0014] Optionally, the housing is provided with a terminal hole, the wiring terminal passes through the terminal hole, and a sealant is provided between the wiring terminal and the terminal hole.
[0015] The second aspect of this disclosure provides a TCS testing system, including: a multi-channel signal generator as provided in the first aspect of this disclosure.
[0016] The technical solution provided in this disclosure may include the following beneficial effects:
[0017] Since the first end of multiple conductive loops is connected to the impedance end of multiple potentiometers respectively, and the second end of multiple conductive loops is connected to multiple signal input terminals of the TCS respectively, multiple potentiometers can be connected to multiple signal input terminals of the TCS through multiple conductive loops. This makes it easy to use multiple potentiometers to adjust the impedance of multiple signal input terminals of the TCS, thereby realizing redundant analog logic testing of the TCS. Furthermore, based on the integrated arrangement of multiple potentiometers and impedance adjustment, TCS testing can be achieved quickly and accurately, thus ensuring high debugging efficiency and low debugging cost of the TCS.
[0018] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description
[0019] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:
[0020] Figure 1 This is a schematic diagram of the structure of a multi-channel signal generator according to an embodiment of this disclosure;
[0021] Figure 2 This is a circuit diagram of a multi-channel signal generator according to an embodiment of the present disclosure (the left side of the vertical solid line is the TCS, and the right side of the vertical solid line is the multi-channel signal generator of this embodiment).
[0022] As shown in the figure: 1. Outer shell, 11. Shell, 12. Cover;
[0023] 2. Potentiometer; 21. First potentiometer; 22. Second potentiometer; 23. Third potentiometer;
[0024] 3. Wiring terminals;
[0025] 100, TCS. Detailed Implementation
[0026] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used only to explain this disclosure, and should not be construed as limiting this disclosure. Rather, embodiments of this disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.
[0027] like Figure 1 and Figure 2 As shown in the figure, this disclosure proposes a multi-channel signal generating device, including: a housing 1, multiple potentiometers 2, and terminals 3. The multiple potentiometers 2 are respectively disposed on the housing 1, with the impedance terminals of the potentiometers 2 located inside the housing 1 and the adjustment terminals of the potentiometers 2 located outside the housing 1. The terminals 3 are disposed on the housing 1 and include: multiple conductive loops, with the first end of each conductive loop located inside the housing 1 and the second end of each conductive loop located outside the housing 1. The first ends of the multiple conductive loops are respectively connected to the impedance terminals of the multiple potentiometers 2, and the second ends of the multiple conductive loops are respectively connected to multiple signal input terminals of a TCS100 (Turbine Control System). At least one potentiometer 2 is used to adjust to a target impedance to test the control action of the TCS100.
[0028] Understandably, since the first ends of multiple conductive loops are respectively connected to the impedance ends of multiple potentiometers 2, and the second ends of multiple conductive loops are respectively connected to multiple signal input terminals of TCS100, multiple potentiometers 2 can be connected to multiple signal input terminals of TCS100 through multiple conductive loops. This facilitates the impedance adjustment of multiple signal input terminals of TCS100 using multiple potentiometers 2, thereby enabling redundant analog logic testing of TCS100. Furthermore, based on the integrated arrangement and impedance adjustment of multiple potentiometers 2, TCS100 testing can be achieved quickly and accurately, thus ensuring high debugging efficiency and low debugging cost of TCS100.
[0029] It should be noted that potentiometer 2, the conductive circuit, and the signal input terminal of TCS100 correspond to each other. Potentiometer 2 is used to adjust the impedance of the signal input terminal of TCS100, thereby changing the current of the signal input terminal of TCS100, and thus realizing the analog input of analog signal.
[0030] For example, potentiometer 2 is a precision multi-turn (10-turn) wire-wound potentiometer 2, with resistance adjustment by rotation (rotating head as the control terminal), rated power of 2W, resistance deviation of ±5%, and resistance range of 0KΩ-10KΩ. Two wires are led out from the impedance terminal of potentiometer 2 and connected to the signal input terminal of TCS100 through the conductive circuit of terminal 3.
[0031] Potentiometer 2 can be used as a voltage divider, rheostat, current controller, etc.
[0032] Additionally, terminal block 3 is used for electrical connection between potentiometer 2 and TCS100. The specific type of terminal block 3 can be set according to actual needs and is not limited thereto. For example, terminal block 3 has an insulated main body structure, and each conductive circuit is set inside the insulated main body structure and connected to the external wiring by screws.
[0033] like Figure 1 As shown, in some embodiments, the plurality of potentiometers 2 include: a first potentiometer 21 and a second potentiometer 22, the first potentiometer 21 and the second potentiometer 22 are respectively disposed on the housing 1, and the impedance terminals of the first potentiometer 21 and the second potentiometer 22 are respectively located inside the housing 1, and the adjustment terminals of the first potentiometer 21 and the second potentiometer 22 are respectively located outside the housing 1; the plurality of conductive circuits include: a first conductive circuit and a second conductive circuit, the first ends of the first conductive circuit and the second conductive circuit are respectively located inside the housing 1, and the second ends of the first conductive circuit and the second conductive circuit are respectively located outside the housing 1; the first end of the first conductive circuit is connected to the impedance terminal of the first potentiometer 21, and the second end of the first conductive circuit is connected to the first signal input terminal of the TCS100; the first end of the second conductive circuit is connected to the impedance terminal of the second potentiometer 22, and the second end of the second conductive circuit is connected to the second signal input terminal of the TCS100.
[0034] Understandably, since the first end of the first conductive loop is connected to the impedance end of the first potentiometer 21, and the second end of the first conductive loop is connected to the first signal input terminal of the TCS100, the first potentiometer 21 can be turned on by the first conductive loop and connected to the first signal input terminal of the TCS100. Similarly, since the first end of the second conductive loop is connected to the impedance end of the second potentiometer 22, and the second end of the second conductive loop is connected to the second signal input terminal of the TCS100, the second potentiometer 22 can be turned on by the second conductive loop and connected to the second signal input terminal of the TCS100. Therefore, by adjusting the impedance of the first potentiometer 21 and the second potentiometer 22, the control action of the TCS100 can be tested.
[0035] like Figure 1 As shown, in some embodiments, the plurality of potentiometers 2 further include: a third potentiometer 23, the third potentiometer 23 being disposed on the housing 1, with the impedance terminal of the third potentiometer 23 located inside the housing 1 and the adjustment terminal of the third potentiometer 23 located outside the housing 1; the plurality of conductive circuits include: a third conductive circuit, the first end of the third conductive circuit being located inside the housing 1 and the second end of the third conductive circuit being located outside the housing 1; the first end of the third conductive circuit is connected to the impedance terminal of the third potentiometer 23, and the second end of the third conductive circuit is connected to the third signal input terminal of the TCS100.
[0036] Understandably, since the first end of the third conductive loop is connected to the impedance terminal of the third potentiometer 23, and the second end of the third conductive loop is connected to the third signal input terminal of the TCS100, the third potentiometer 23 can be connected to the third signal input terminal of the TCS100 via the third conductive loop. Therefore, by matching the impedances of the first potentiometer 21, the second potentiometer 22, and the third potentiometer 23, the control action of the TCS100 can be tested.
[0037] In some embodiments, the first potentiometer 21 and the second potentiometer 22 are respectively adjusted to the target impedance to test the control action of the TCS100; or, the first potentiometer 21 and the third potentiometer 23 are respectively adjusted to the target impedance to test the control action of the TCS100; or, the second potentiometer 22 and the third potentiometer 23 are respectively adjusted to the target impedance to test the control action of the TCS100.
[0038] Specifically, adjusting the first potentiometer 21 and the second potentiometer 22 to the target impedance enables the three-out-of-two logic operation test of the first signal input terminal and the second signal input terminal of the TCS100; adjusting the first potentiometer 21 and the third potentiometer 23 to the target impedance enables the three-out-of-two logic operation test of the first signal input terminal and the third signal input terminal of the TCS100; adjusting the second potentiometer 22 and the third potentiometer 23 to the target impedance enables the three-out-of-two logic operation test of the second signal input terminal and the third signal input terminal of the TCS100.
[0039] For example, potentiometers 21, 22, and 23 are used in a two-out-of-three analog signal protection test for the TCS100. Specifically, if it is necessary to test the protection action of the lubricating oil tank level when the level is less than 850mm, the range of the lubricating oil tank level transmitter is 0mm-1500mm (the level transmitter is set to 0mm-1500mm, corresponding to a 4MA-20MA current signal). After calculation, the current corresponding to 850mm is 13.07MA. If the internal resistance of the TCS100 is 250 ohms and the power supply voltage is 24VDC, according to Ohm's law, potentiometer 2 only needs to be modulated to 1586 ohms. At this time, the current value received by the TCS100 is 13.07MA, corresponding to a level of 850mm.
[0040] The specific procedure is as follows: First, locate the wiring positions of the three lubricating oil tank level signals to be tested on the TCS100 cabinet side. Connect the two leads of each potentiometer 2 to the 24V and signal terminals of each signal channel respectively. Observe whether the current value of this channel in the TCS100 is normal. At this time, adjust the output value of potentiometer 2 to be slightly greater than 1586 ohms. At this time, the liquid level value displayed on the TCS100 will be slightly greater than 850mm. Slowly reduce the output resistance value to be slightly less than 1586 ohms. At this time, the liquid level value displayed will be slightly less than 850mm. According to the two-out-of-three protection principle, three combinations need to be tested, namely the first signal input terminal and the second signal input terminal, the first signal input terminal and the third signal input terminal, and the second signal input terminal and the third signal input terminal. Test whether the protection logic can actually operate when both signal input terminals are simultaneously below 850mm, so as to achieve the purpose of protection logic verification.
[0041] In some embodiments, the conductive circuit includes a first conductive channel and a second conductive channel. The first ends of the first and second conductive channels are located inside the housing 1, and the second ends of the first and second conductive channels are located outside the housing 1. The first end of the first conductive channel is connected to the first end of the impedance terminal of the potentiometer 2, and the second end of the first conductive channel is connected to the first end of the signal input terminal of the TCS100. The first end of the second conductive channel is connected to the second end of the impedance terminal of the potentiometer 2, and the second end of the second conductive channel is connected to the second end of the signal input terminal of the TCS100.
[0042] It is understandable that, since the first end of the first conductive channel is connected to the first end of the impedance terminal of potentiometer 2, and the second end of the first conductive channel is connected to the first end of the signal input terminal of TCS100, the first end of the impedance terminal of potentiometer 2 and the first end of the signal input terminal of TCS100 can be connected using the first conductive channel. Furthermore, since the first end of the second conductive channel is connected to the second end of the impedance terminal of potentiometer 2, and the second end of the second conductive channel is connected to the second end of the signal input terminal of TCS100, the second end of the impedance terminal of potentiometer 2 and the second end of the signal input terminal of TCS100 can be connected using the second conductive channel.
[0043] Thus, through the cooperation of the first and second conductive channels, a signal generation loop is formed between the impedance end of potentiometer 2 and the signal input end of TCS100. Based on the power supply in TCS100 and the impedance adjustment of potentiometer 2, the input of analog signals is realized.
[0044] It should be noted that the first conductive channel and the second conductive channel are used for conducting electricity. For example, the first conductive channel and the second conductive channel can be conductive metal strips, and multiple conductive metal strips are arranged at intervals in the insulating main structure of the terminal 3.
[0045] like Figure 1 As shown, in some embodiments, the outer casing 1 includes a housing 11 and a cover 12. The housing 11 is provided with a receiving groove, the impedance end of the potentiometer 2 and the first end of the conductive circuit are respectively located in the receiving groove, and the cover 12 is detachably closed on the opening of the receiving groove.
[0046] It is understandable that, since the impedance end of potentiometer 2 and the first end of the conductive circuit are respectively located in the receiving groove of housing 11, and the cover 12 is detachably closed on the groove opening of the receiving groove, potentiometer 2 and terminal 3 can be protected by housing 1, and the disassembly and maintenance of potentiometer 2 and terminal 3 are convenient.
[0047] It should be noted that the housing 11 is used to accommodate some of the potentiometers 2 and some of the terminals 3. The specific type of housing 11 can be set according to actual needs and is not limited thereto. For example, the housing 11 can be a rectangular box structure. The first potentiometer 21, the second potentiometer 22 and the third potentiometer 23 are arranged at intervals along the length of the housing 11 on the long side of the housing 11, and the terminals 3 are arranged on the short side of the housing 11.
[0048] In some embodiments, the housing 1 further includes a sealing ring disposed along the opening of the receiving groove, and the sealing ring is located between the cover 12 and the opening of the receiving groove.
[0049] It is understandable that, since the sealing ring is set along the opening of the receiving groove and is located between the cover 12 and the opening of the receiving groove, the sealing ring can be used to seal between the cover 12 and the opening of the receiving groove, thereby ensuring a stable electrical connection between the potentiometer 2 and the terminal 3.
[0050] It should be noted that the sealing ring is used for sealing between the cover 12 and the housing 11. The specific type of sealing ring can be set according to actual needs and there are no restrictions on it. For example, the sealing ring can be a rubber ring, etc.
[0051] In some embodiments, the housing 1 is provided with a plurality of spaced potential holes, a plurality of potentiometers 2 passing through the plurality of potential holes respectively, and a sealant is provided between the potentiometers 2 and the potential holes.
[0052] It is understandable that, since multiple potentiometers 2 pass through multiple potential holes in the housing 1 respectively, and sealant is provided between the potentiometers 2 and the potential holes, multiple potentiometers 2 can be stably installed on the housing 1 while the sealant can ensure the sealing inside the housing 1, thereby ensuring a stable electrical connection between the potentiometers 2 and the terminal block 3.
[0053] Among them, the potential holes correspond to the potentiometers 2. For the first potentiometer 21, the second potentiometer 22 and the third potentiometer 23, three corresponding potential holes are arranged respectively.
[0054] In some embodiments, the housing 1 is provided with a terminal hole, the wiring terminal 3 passes through the terminal hole, and a sealant is provided between the wiring terminal 3 and the terminal hole.
[0055] It is understandable that, since the terminal block 3 passes through the terminal hole of the housing 1 and a sealant is provided between the terminal block 3 and the terminal hole, the terminal block 3 can be stably installed on the housing 1 while the sealant can ensure the sealing inside the housing 1, thereby ensuring a stable electrical connection between the potentiometer 2 and the terminal block 3.
[0056] This disclosure also proposes a TCS100 testing system, including a multi-channel signal generator as described in this disclosure.
[0057] Understandably, since the first ends of multiple conductive loops are respectively connected to the impedance ends of multiple potentiometers 2, and the second ends of multiple conductive loops are respectively connected to multiple signal input terminals of TCS100, multiple potentiometers 2 can be connected to multiple signal input terminals of TCS100 through multiple conductive loops. This facilitates the impedance adjustment of multiple signal input terminals of TCS100 using multiple potentiometers 2, thereby enabling redundant analog logic testing of TCS100. Furthermore, based on the integrated arrangement and impedance adjustment of multiple potentiometers 2, TCS100 testing can be achieved quickly and accurately, thus ensuring high debugging efficiency and low debugging cost of TCS100.
[0058] It should be noted that for the TCS100 test system, a corresponding calculation module can be set up. For example, the target impedance can be calculated based on the internal resistance of the TCS100 and the supply voltage.
[0059] The impedance of potentiometer 2 can be adjusted manually, or it can be automatically adjusted by using a motor or other driving device.
[0060] In the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.
[0061] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.
[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0063] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.
Claims
1. A multi-channel signal generator, characterized in that, include: shell; Multiple potentiometers are respectively disposed on the housing, with the impedance terminals of the potentiometers located inside the housing and the adjustment terminals of the potentiometers located outside the housing. A terminal block is disposed on the housing, and the terminal block includes: a plurality of conductive loops, wherein the first end of the conductive loop is located inside the housing, and the second end of the conductive loop is located outside the housing; The first ends of the plurality of conductive circuits are respectively connected to the impedance ends of the plurality of potentiometers, and the second ends of the plurality of conductive circuits are respectively connected to the plurality of signal input ends of the gas turbine control system TCS. At least one of the potentiometers is used to adjust to the target impedance in order to test the control action of the TCS.
2. The multi-channel signal generator according to claim 1, characterized in that, The plurality of potentiometers includes: a first potentiometer and a second potentiometer, the first potentiometer and the second potentiometer being respectively disposed on the housing, and the impedance terminals of the first potentiometer and the second potentiometer being respectively located on the inner side of the housing, and the adjustment terminals of the first potentiometer and the second potentiometer being respectively located on the outer side of the housing; The plurality of conductive circuits include: a first conductive circuit and a second conductive circuit, wherein the first ends of the first conductive circuit and the second conductive circuit are respectively located inside the housing, and the second ends of the first conductive circuit and the second conductive circuit are respectively located outside the housing; The first end of the first conductive circuit is connected to the impedance end of the first potentiometer, and the second end of the first conductive circuit is connected to the first signal input end of the TCS. The first end of the second conductive circuit is connected to the impedance end of the second potentiometer, and the second end of the second conductive circuit is connected to the second signal input end of the TCS.
3. The multi-channel signal generator according to claim 2, characterized in that, The plurality of potentiometers further includes: a third potentiometer, wherein the third potentiometer is disposed on the housing, and the impedance terminal of the third potentiometer is located inside the housing, and the adjustment terminal of the third potentiometer is located outside the housing; The plurality of conductive circuits includes: a third conductive circuit, wherein the first end of the third conductive circuit is located inside the housing, and the second end of the third conductive circuit is located outside the housing; The first end of the third conductive circuit is connected to the impedance end of the third potentiometer, and the second end of the third conductive circuit is connected to the third signal input end of the TCS.
4. The multi-channel signal generator according to claim 3, characterized in that, The first potentiometer and the second potentiometer are used to adjust to the target impedance respectively in order to test the control action of the TCS; or, The first potentiometer and the third potentiometer are used to adjust to the target impedance respectively in order to test the control action of the TCS; or, The second potentiometer and the third potentiometer are used to adjust to the target impedance respectively in order to test the control action of the TCS.
5. The multi-channel signal generator according to claim 1, characterized in that, The conductive circuit includes: First conductive channel and second conductive channel; Wherein, the first ends of the first conductive channel and the second conductive channel are respectively located inside the outer shell, and the second ends of the first conductive channel and the second conductive channel are respectively located outside the outer shell; The first end of the first conductive channel is connected to the first end of the potentiometer impedance terminal, and the second end of the first conductive channel is connected to the first end of the TCS signal input terminal. The first end of the second conductive channel is connected to the second end of the potentiometer impedance terminal, and the second end of the second conductive channel is connected to the second end of the TCS signal input terminal.
6. The multi-channel signal generator according to claim 1, characterized in that, The outer casing includes: The housing is provided with a receiving groove, and the impedance end of the potentiometer and the first end of the conductive circuit are respectively located in the receiving groove; A cover that is detachably fitted onto the opening of the receiving groove.
7. The multi-channel signal generator according to claim 6, characterized in that, The outer casing also includes: A sealing ring is provided along the opening of the receiving groove, and the sealing ring is located between the cover and the opening of the receiving groove.
8. The multi-channel signal generator according to claim 1, characterized in that, The housing is provided with a plurality of spaced potential holes, and a plurality of potentiometers pass through the plurality of potential holes respectively, and a sealant is provided between the potentiometers and the potential holes.
9. The multi-channel signal generator according to claim 1, characterized in that, The housing is provided with a terminal hole, the wiring terminal passes through the terminal hole, and a sealant is provided between the wiring terminal and the terminal hole.
10. A TCS testing system, characterized in that, include: The multi-channel signal generator as described in any one of claims 1-9.