Maintenance device for modulator of electric vacuum transmitter

Abstract

The embodiment of the utility model relates to the technical field of radar testing. The utility model provides an electric vacuum transmitter modulator maintenance device. The device comprises a shell which is internally provided with a power supply assembly, a pulse forming module, a first pulse signal source, a second pulse signal source, an oscilloscope module, a pulse shaping module, a voltage and current test module, a fault signal detection module, a filament load, a silicon controlled rectifier voltage regulation module and a pulse attenuation shaping module. According to the embodiment of the invention, functions and parameters of a plurality of modules can be tested at a time, the problem of shortage of field test instruments is solved, rapid maintenance is realized, and the field maintenance efficiency is improved. The off-line detection of the transmitter control detection unit is realized, the automation degree is high, and the software is simple and easy to operate. The combination of software and hardware of a communication control technology is realized, and a large number of general instruments are saved. Work of debugging, checking, detection, maintenance and the like of the modulator can be reliably completed.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the field of radar testing technology, and in particular to a device for repairing an electric vacuum transmitter modulator. Background Art

[0002] A radar is a key component for battlefield artillery command. Its electrovacuum transmitter is the core of the radar, and its reliability directly affects the radar's overall performance. After operating in harsh environments for a long time, many electrovacuum transmitters have experienced frequent failures in their internal modulators.

[0003] The transmitter modulator, short for the transmitter high-voltage pulse modulator assembly, is a critical component in certain radar transmitters. The assembly includes a filament power supply, negative bias power supply, positive bias power supply, pulse forming unit, and fault detection unit. Each module has a specific function and works together to control the normal operation and fault detection of the transmitter's modulated pulse forming.

[0004] During on-site maintenance, the modulator cannot be inspected and tested at any test point because the cabinet and frame are installed on the antenna base. Therefore, faulty parts can only be replaced based on experience, resulting in low repair efficiency and poor maintenance accuracy. Utility Model Content

[0005] In order to avoid the shortcomings of the prior art, the present invention provides an electro-vacuum transmitter modulator maintenance device to solve the problems in the prior art of being unable to bring out test points during modulator maintenance, low repair efficiency, and poor maintenance accuracy.

[0006] According to an embodiment of the present disclosure, a device for repairing an electric vacuum transmitter modulator is provided, the device comprising:

[0007] A housing, wherein a power supply assembly, a pulse forming module, a first pulse signal source, a second pulse signal source, an oscilloscope module, a pulse shaping module, a voltage and current testing module, a fault signal detection module, a filament load, a thyristor voltage regulating module, and a pulse attenuation shaping module are arranged in the housing;

[0008] The power supply component is electrically connected to the pulse forming module, the voltage and current testing module, the fault signal detection module and the modulated pulse testing module respectively; the first pulse signal source is electrically connected to the pulse forming module; the voltage and current testing module is electrically connected to the filament load; the oscilloscope module is electrically connected to the pulse shaping module and the pulse attenuation shaping module respectively; the pulse shaping module, the filament load and the thyristor voltage regulating module are connected in parallel;

[0009] The pulse forming module, the pulse shaping module, the filament load and the thyristor voltage regulating module are respectively used to be electrically connected to the A-type modulator, and the fault signal detection module, the second pulse signal source and the pulse attenuation shaping module, the pulse shaping module, the filament load and the thyristor voltage regulating module are respectively used to be electrically connected to the B-type modulator.

[0010] Furthermore, the power supply assembly includes:

[0011] A first power supply of 5V / 3A, a second power supply of 15V / 1A, and a third power supply of 48V / 2A arranged in parallel;

[0012] Among them, the first power supply is electrically connected to the voltage and current testing module and the oscilloscope module respectively, the second power supply is electrically connected to the first pulse signal source, the pulse forming module, the voltage and current testing module and the second pulse signal source respectively, and the third power supply is electrically connected to the voltage and current testing module and the pulse forming module respectively.

[0013] Furthermore, the second power supply and the third power supply are electrically connected to the pulse forming module through an 800V power supply module.

[0014] Furthermore, the power supply assembly further includes:

[0015] Switch S1;

[0016] The switch S1 is electrically connected to the first power source, the second power source, and the third power source respectively.

[0017] Furthermore, a switch S2 is provided between the third power supply and the 800V power supply module, a switch S3 is provided between the second power supply and the 800V power supply module, a switch S4 is provided between the first pulse signal module and the pulse forming module, and a switch S5 is provided between the second power supply and the second pulse signal module.

[0018] Furthermore, the shell is provided with a modulator B power supply port, and the modulator B power supply port includes a 15V port and a 48V port; wherein, the second power supply is electrically connected to the 15V port, and the third power supply is electrically connected to the 48V port.

[0019] Furthermore, a switch S6 is provided between the second power supply and the 15V port, and a switch S7 is provided between the third power supply and the 48V port.

[0020] Furthermore, the housing is further provided with a modulator A power supply port, and the modulator A power supply port includes a first port port and a second port port;

[0021] Wherein, the first port is electrically connected to the positive port of the pulse forming module, and the second port is electrically connected to the negative port of the pulse forming module;

[0022] The housing is further provided with a third port, and the third port is electrically connected to the thyristor voltage regulating module.

[0023] Furthermore, the housing is provided with an OFF PULES port, an ON PULES port and a fourth Port port;

[0024] The OFF PULES port and the ON PULES port are both electrically connected to the second pulse signal source, and the fourth Port port is electrically connected to the fault detection module.

[0025] Furthermore, the housing is further provided with an F port, a K port and a G port;

[0026] The F port is electrically connected to the filament load, the K port is electrically connected to the filament load and the pulse shaping module respectively, and the pulse shaping module and the pulse attenuation shaping module are electrically connected to the G port in parallel.

[0027] The technical solutions provided by the embodiments of the present disclosure may have the following beneficial effects:

[0028] In the disclosed embodiments, the electro-vacuum transmitter modulator maintenance device described above can simultaneously test the functions and parameters of multiple modules, addressing the shortage of on-site test instruments, enabling rapid maintenance and improving on-site maintenance efficiency. It also implements offline testing of transmitter control and detection units, boasts a high degree of automation, and features a simple, easy-to-use software interface. It integrates communication control technology hardware and software, saving a significant amount of general-purpose instrumentation. It can reliably complete modulator commissioning, inspection, testing, and maintenance tasks. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0030] Figure 1 A schematic structural diagram of an electric vacuum transmitter modulator repair device in an exemplary embodiment of the present disclosure is shown;

[0031] Figure 2 A circuit diagram showing an electro-vacuum transmitter modulator repair device according to an exemplary embodiment of the present disclosure;

[0032] Figure 3 A block diagram showing the working principle of the A-type radar modulator maintenance tool in an exemplary embodiment of the present disclosure is shown;

[0033] Figure 4 A block diagram of the working principle of a B-type radar modulator maintenance tool in an exemplary embodiment of the present disclosure is shown.

[0034] In the figure, 100, shell; 101, power supply port of modulator B; 102, detection port of modulator B; 103, G port; 104, K port; 105, F port; 106, positive port of 800V pulse forming module; 107, negative port of 800V pulse forming module; 108, power supply port of modulator A; 109, switch S3; 110, switch S2; 111, switch S4; 112, switch S6; 113, switch S7; 114, switch S5; 115, first spare switch; 116, second spare switch; 117, third spare switch; 118, thyristor voltage adjustment knob; 119, detection selection knob. DETAILED DESCRIPTION

[0035] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0036] In addition, the accompanying drawings are merely schematic illustrations of embodiments of the present disclosure and are not necessarily drawn to scale. Like reference numerals in the figures represent like or similar parts, and thus repeated descriptions thereof will be omitted. Some of the blocks shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically separate entities.

[0037] This exemplary embodiment provides an electro-vacuum transmitter modulator repair device. Figure 1 As shown in , the electro-vacuum transmitter modulator repair device may include:

[0038] A housing (100) is provided with a power supply component, a pulse forming module, a first pulse signal source, a second pulse signal source, an oscilloscope module, a pulse shaping module, a voltage and current testing module, a fault signal detection module, a filament load, a thyristor voltage regulating module, and a pulse attenuation shaping module;

[0039] The power supply component is electrically connected to the pulse forming module, the voltage and current testing module, the fault signal detection module and the modulated pulse testing module respectively; the first pulse signal source is electrically connected to the pulse forming module; the voltage and current testing module is electrically connected to the filament load; the oscilloscope module is electrically connected to the pulse shaping module and the pulse attenuation shaping module respectively; the pulse shaping module, the filament load and the thyristor voltage regulating module are connected in parallel;

[0040] The pulse forming module, the pulse shaping module, the filament load and the thyristor voltage regulating module are respectively used to be electrically connected to the A-type modulator, and the fault signal detection module, the second pulse signal source and the pulse attenuation shaping module, the pulse shaping module, the filament load and the thyristor voltage regulating module are respectively used to be electrically connected to the B-type modulator.

[0041] The aforementioned electro-vacuum transmitter modulator maintenance device can test the functions and parameters of multiple modules simultaneously, resolving the shortage of on-site test instruments, enabling rapid maintenance and improving on-site maintenance efficiency. It enables offline testing of transmitter control and detection units, boasts a high degree of automation, and features a simple, easy-to-use software interface. It integrates communication control technology hardware and software, saving a significant amount of general-purpose instrumentation. It can reliably complete modulator commissioning, inspection, testing, and maintenance.

[0042] Below, we will refer to Figures 1 to 4 The various components of the above-described electro-vacuum transmitter modulator repair apparatus in this exemplary embodiment will be described in more detail.

[0043] In one embodiment, Figure 2As shown, the power supply assembly includes: a first power supply of 5V / 3A, a second power supply of 15V / 1A, and a third power supply of 48V / 2A arranged in parallel; wherein the first power supply is electrically connected to the voltage and current test module and the oscilloscope module respectively, the second power supply is electrically connected to the first pulse signal source, the pulse forming module, the voltage and current test module, and the second pulse signal source respectively, and the third power supply is electrically connected to the voltage and current test module and the pulse forming module respectively. The second power supply and the third power supply are all electrically connected to the pulse forming module through the 800V power supply module. The power supply assembly also includes: a switch S1; the switch S1 is electrically connected to the first power supply, the second power supply, and the third power supply respectively. A switch S2 (110) is provided between the third power supply and the 800V power supply module, a switch S3 (109) is provided between the second power supply and the 800V power supply module, a switch S4 (111) is provided between the first pulse signal module and the pulse forming module, and a switch S5 (114) is provided between the second power supply and the second pulse signal module. The housing (100) is provided with a modulator B power supply port (101), which includes a 15V port and a 48V port; wherein the second power supply is electrically connected to the 15V port, and the third power supply is electrically connected to the 48V port. A switch S6 (112) is provided between the second power supply and the 15V port, and a switch S7 (113) is provided between the third power supply and the 48V port.

[0044] In one embodiment, the modulator test fixture provides the necessary power supply, timing pulses, and detection means for testing the A-type modulator and the B-type modulator.

[0045] The overall power supply is 220VAC, which is converted to three DC voltages: 5V, 15V, and 48V. The 5V power supply is responsible for powering three isolated 5V power modules, which are used for power supply isolation for voltage and current measurements.

[0046] 15V is used to power modulator B, the pulse signal source of the tooling itself, and the 800V power supply control circuit.

[0047] The 48V provides energy to the 800V power boost circuit of the tooling, and also provides energy to the voltage doubler circuit of modulator B.

[0048] The fault detection module detects various fault detection voltages of modulator B, including filament voltage, positive bias voltage, negative bias voltage, high potential voltage, etc.

[0049] Dual-channel pulse signal source (i.e., the first pulse signal source and the second pulse signal source), the first pulse signal source is used to generate the pulses required by modulator A, and the second pulse signal source is used to generate the pulses required by modulator B. The pulses of modulator B include on and off pulses and have a certain timing sequence.

[0050] The 800V power forming circuit (i.e., pulse forming module) is used to generate primary modulation pulses and send them to modulator A. Modulator A couples the modulation pulses out through an isolation transformer.

[0051] The pulse shaping module is used to shape the modulated pulse output by modulator A through filtering and anti-backlash measures to facilitate detection.

[0052] The filament load is used to provide a load for the modulator A and B filament power supplies, making it easier to test the load capacity of the filament power supplies.

[0053] The thyristor voltage regulator module is used to provide a variable input power supply voltage of 0 to 220V to modulator A, which is convenient for safe operation during the initial test and can slowly increase the voltage test.

[0054] The pulse attenuation shaping module is used to attenuate the high-voltage modulated pulse output by modulator B to a safe voltage before inputting it into an oscilloscope for testing.

[0055] The oscilloscope module dual-channel tests the modulation pulse output parameters of modulator A and modulator B.

[0056] Switch S1 is the main power supply; switch S2 (110) is the 800V power supply 48V power supply; switch S3 (109) is the 800V power supply 15V power supply; switch S4 (111) is the modulator A trigger pulse switch; switch S5 (114) is the modulator B trigger pulse switch; switch S6 (112) is the modulator B 15V power supply switch; switch S7 (113) is the modulator B 48V power supply switch.

[0057] In one embodiment, Figure 1 As shown, the housing (100) is further provided with a modulator A power supply port (108), and the modulator A power supply port (108) includes a first port and a second port; wherein the first port is electrically connected to the positive port of the pulse forming module, and the second port is electrically connected to the negative port of the pulse forming module; the housing (100) is further provided with a third port, and the third port is electrically connected to the thyristor voltage regulating module.

[0058] The housing (100) is further provided with an F port (105), a K port (104), and a G port (103); wherein the F port (105) is electrically connected to the filament load, the K port (104) is electrically connected to the filament load and the pulse shaping module respectively, and the pulse shaping module and the pulse attenuation shaping module are electrically connected in parallel to the G port (103).

[0059] More specifically, when testing the A-type modulator, the first Port port is connected to the positive port (106) of the 800V pulse forming module of the pulse forming module, and the second Port port is connected to the negative port (107) of the 800V pulse forming module of the pulse forming module. The first Port port, the second Port port, and the third Port port are all used to connect to the A-type modulator, the F port (105) is used to be electrically connected to the grid of the A-type modulator, the K port (104) is used to be electrically connected to the cathode of the A-type modulator, and the F port (105) is used to be connected to the filament of the A-type modulator.

[0060] According to the technical specifications of a certain modulator, an 800V pulse is required. This pulse can be supplied to the transformer's primary electrical signal via an 800V power supply board, controlled by pulses on and off. Therefore, after equipping the necessary DC power supply and pulse signal transmitter board, the challenge lies in designing a qualified 800V power supply and the subsequent pulses.

[0061] The final modulated pulse is added to the traveling wave tube gate, and the current is at the milliampere level. Therefore, the load capacity requirement for the modulated pulse is not high. A single-ended switching power supply can be used to convert the 48V DC into a 200V high-frequency AC signal through a transformer, and then a 4-fold voltage rectification conversion can be obtained to obtain 800V DC.

[0062] The pulse trigger is amplified by TC4424, which controls the BUZ50 switch tube to turn on, and sends it to the primary of the modulator pulse transformer at the drain of the MOS tube and the output end of the 800V power supply to form a modulated pulse.

[0063] To ensure both safety and miniaturization, the modulator's filament power supply and negative bias supply utilize a thyristor-controlled 220V input with continuously adjustable voltage. A 100:1 probe is used at the output test port to measure various parameters of the modulated pulse, matching the filament's 4Ω load to test the filament's power supply voltage and load capacity. The 15V and 48V power supplies monitor current and can be disconnected immediately if a short circuit occurs in the downstream stage. All voltage and current meters are isolated via a 1505 isolation power supply to ensure accurate measurements.

[0064] like Figure 3 The figure shows the working principle block diagram of the A-type radar modulator maintenance tooling.

[0065] In a specific embodiment, Figure 1 As shown, the housing (100) is further provided with an OFF PULES port, an ON PULES port and a fourth Port port; wherein the OFF PULES port and the ON PULES port are both electrically connected to the second pulse signal source, and the fourth Port port is electrically connected to the fault detection module.

[0066] The housing (100) is further provided with an F port (105), a K port (104), and a G port (103); wherein the F port (105) is electrically connected to the filament load, the K port (104) is electrically connected to the filament load and the pulse shaping module respectively, and the pulse shaping module and the pulse attenuation shaping module are electrically connected in parallel to the G port (103).

[0067] Specifically, when testing the B-type modulator, the F port (105) is used to be electrically connected to the gate of the B-type modulator, the K port (104) is used to be electrically connected to the cathode of the B-type modulator, and the F port (105) is used to be connected to the filament of the B-type modulator.

[0068] In addition to the necessary power supply, measurements of a B modulator require both a start pulse and a cutoff pulse. These two pulses must maintain a maximum frequency of 4.4kHz and be synchronized, with a cutoff pulse delay of 23.2µs. The pulse signal is generated using a 555 trigger and delayed using a 4098 chip. To ensure drive capability, both pulses are amplified using a 244 chip. This circuit integrates a modulator tester to ensure proper output of the fault detection circuit during maintenance. A filament load is also provided to test the load capacity of the filament power supply. A 1:100 pulse probe is used to measure the modulated pulses, with the information sent to an oscilloscope module for testing. Current is monitored on the 15V and 48V power supplies to enable immediate power cutoff in the event of a short circuit in the downstream stage.

[0069] In a specific embodiment, Figure 1 As shown, the housing (100) is further provided with a modulator B detection port (102), a first standby switch (115), a second standby switch (116), a third standby switch (117), a thyristor voltage adjustment knob (118) and a detection selection knob (119).

[0070] Figure 4 This is the working principle block diagram of the B-type radar modulator maintenance tooling.

[0071] The aforementioned electro-vacuum transmitter modulator maintenance device can test the functions and parameters of multiple modules simultaneously, addressing the shortage of on-site test instruments, enabling rapid maintenance and improving on-site maintenance efficiency. It enables offline testing of transmitter control and detection units, boasts a high degree of automation, and features simple and easy-to-use software. It integrates communication control technology hardware and software, saving a significant amount of general-purpose instrumentation. It can reliably complete modulator commissioning, inspection, testing, and maintenance. Furthermore, the device is highly integrated, compact, comprehensive, and easy to operate, providing timely power supply monitoring and clear indication of all indicators.

[0072] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like in the above description indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present disclosure.

[0073] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly indicate the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0074] In the embodiments of the present disclosure, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," and the like should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present disclosure based on specific circumstances.

[0075] In the embodiments of the present disclosure, unless otherwise expressly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0076] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0077] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the appended claims.

Claims

1. An electro-vacuum transmitter modulator maintenance device, characterized in that: The device includes: A housing, wherein a power supply component, a pulse forming module, a first pulse signal source, a second pulse signal source, an oscilloscope module, a pulse shaping module, a voltage and current testing module, a fault signal detection module, a filament load, a thyristor voltage regulating module and a pulse attenuation shaping module are arranged in the housing; Wherein, the power supply component is electrically connected to the pulse forming module, the voltage and current testing module and the fault signal detection module respectively, the first pulse signal source is electrically connected to the pulse forming module, the voltage and current testing module is electrically connected to the filament load, the oscilloscope module is electrically connected to the pulse shaping module and the pulse attenuation shaping module respectively, and the pulse shaping module, the filament load and the thyristor voltage regulating module are connected in parallel; The pulse forming module, the pulse shaping module, the filament load and the thyristor voltage regulating module are respectively used to be electrically connected to the A-type modulator, and the fault signal detection module, the second pulse signal source and the pulse attenuation shaping module, the pulse shaping module, the filament load and the thyristor voltage regulating module are respectively used to be electrically connected to the B-type modulator.

2. The electro-vacuum transmitter modulator maintenance device according to claim 1, characterized in that: The power supply assembly comprises: A first power supply of 5V / 3A, a second power supply of 15V / 1A, and a third power supply of 48V / 2A arranged in parallel; Among them, the first power supply is electrically connected to the voltage and current testing module and the oscilloscope module respectively, the second power supply is electrically connected to the first pulse signal source, the pulse forming module, the voltage and current testing module and the second pulse signal source respectively, and the third power supply is electrically connected to the voltage and current testing module and the pulse forming module respectively.

3. The electro-vacuum transmitter modulator maintenance device according to claim 2, characterized in that: The second power supply and the third power supply are both electrically connected to the pulse forming module through an 800V power supply module.

4. The electro-vacuum transmitter modulator maintenance device according to claim 3, characterized in that: The power supply assembly also includes: Switch S1; The switch S1 is electrically connected to the first power source, the second power source and the third power source respectively.

5. The electro-vacuum transmitter modulator maintenance device according to claim 4, characterized in that: A switch S2 is provided between the third power supply and the 800V power supply module, a switch S3 is provided between the second power supply and the 800V power supply module, a switch S4 is provided between the first pulse signal source and the pulse forming module, and a switch S5 is provided between the second power supply and the second pulse signal source.

6. The electro-vacuum transmitter modulator maintenance device according to claim 5, characterized in that: The shell is provided with a modulator B power supply port, and the modulator B power supply port includes a 15V port and a 48V port; wherein the second power supply is electrically connected to the 15V port, and the third power supply is electrically connected to the 48V port.

7. The electro-vacuum transmitter modulator maintenance device according to claim 6, characterized in that: A switch S6 is provided between the second power source and the 15V port, and a switch S7 is provided between the third power source and the 48V port.

8. The electro-vacuum transmitter modulator maintenance device according to claim 7, characterized in that: The housing is also provided with a modulator A power supply port, and the modulator A power supply port includes a first port and a second port; Wherein, the first port is electrically connected to the positive port of the pulse forming module, and the second port is electrically connected to the negative port of the pulse forming module; The housing is also provided with a third Port, and the third Port is electrically connected to the thyristor voltage regulating module.

9. The electro-vacuum transmitter modulator maintenance device according to claim 8, characterized in that: The housing is also provided with an OFF PULES port, an ON PULES port and a fourth Port port; The OFF PULES port and the ON PULES port are both electrically connected to the second pulse signal source, and the fourth Port port is electrically connected to the fault signal detection module.

10. The electro-vacuum transmitter modulator maintenance device according to claim 9, characterized in that: The housing is also provided with an F port, a K port and a G port; The F port is electrically connected to the filament load, the K port is electrically connected to the filament load and the pulse shaping module respectively, and the pulse shaping module and the pulse attenuation shaping module are electrically connected to the G port in parallel.

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