CN113138567A - High-precision controllable three-electrode switch - Google Patents

High-precision controllable three-electrode switch Download PDF

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Publication number
CN113138567A
CN113138567A CN202010053226.3A CN202010053226A CN113138567A CN 113138567 A CN113138567 A CN 113138567A CN 202010053226 A CN202010053226 A CN 202010053226A CN 113138567 A CN113138567 A CN 113138567A
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China
Prior art keywords
temperature
distance
humidity
switch
adjusting
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Pending
Application number
CN202010053226.3A
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Chinese (zh)
Inventor
毛文斌
顾建军
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Shanghai Prima Electronic Co ltd
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Shanghai Prima Electronic Co ltd
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Priority to CN202010053226.3A priority Critical patent/CN113138567A/en
Publication of CN113138567A publication Critical patent/CN113138567A/en
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423—Input/output
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • G05B19/054—Input/output
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/967—Switches controlled by moving an element forming part of the switch having a plurality of control members, e.g. keyboard
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/11—Plc I-O input output
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/15—Plc structure of the system
    • G05B2219/15039—Display of reference, set value, of measured, feedback value
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/21—Pc I-O input output
    • G05B2219/21137—Analog to digital conversion, ADC, DAC
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25033—Pc structure of the system structure, control, syncronization, data, alarm, connect I-O line to interface

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

The invention relates to a high-precision controllable three-electrode switch which comprises a switch main body, a power supply, a pulse trigger circuit, a switch two-electrode adjusting module and a main controller, wherein the power supply, the pulse trigger circuit and the two-electrode adjusting module are all connected with the switch main body; after the temperature and humidity acquisition module acquires environment temperature and humidity data, the monitoring adjustment processing module processes the data and then sends a control signal to the main controller so as to adjust the distance between the two electrodes of the switch main body. Compared with the prior art, the temperature and humidity acquisition module is configured to acquire the temperature and humidity of the environment, and the distance between the two electrodes is adjusted.

Description

High-precision controllable three-electrode switch
Technical Field
The invention relates to a three-electrode switch, in particular to a high-precision controllable three-electrode switch.
Background
In recent decades, the switching technology has been rapidly developed, the types of switches are also many, various spark gap switches developed according to the discharge characteristic principle have simple structures and are widely used, and the commonly used spark gap switches include three-electrode gap switches, field distortion gap switches, mechanical gap switches and the like, wherein the three-electrode gap switches are most used because the three-electrode gap switches have the advantages of quick response time and smooth discharge waveform compared with other switches, but the existing three-electrode switches have the problems of high false triggering rate and high non-triggering rate because the principle is that air is broken through by controlling the distance between two poles of the switches through high-voltage pulses to cause the discharge action of the two poles of the switches, but the principle is greatly influenced by the temperature and humidity of the air, particularly the humidity of the air, when the false triggering or non-starting occurs, as shown in fig. 1, an operator can only stop the device, the manual adjustment is carried out until a proper parameter is debugged, the process is possibly very complicated, and the parameter input to the main controller needs to be manually adjusted, so that the distance between two poles of the switch main body is adjusted.
Some prior arts may solve the above problems by improving the structure of the switch, for example, chinese patent CN110649467A discloses a closed type planar three-electrode spark switch and a preparation method thereof. The PCB comprises a bottom PCB, a circuit layer, a PP layer and a top PCB in sequence, wherein the bottom PCB is a substrate of the switch circuit layer; the circuit layer comprises an anode, a cathode, a trigger electrode and a bonding pad connected with the anode, the cathode and the trigger electrode; a pad window is arranged at the position of the PP layer corresponding to the pad, and an electrode window is arranged at the position corresponding to the electrode; a welding disc groove is arranged at the position of the top layer PCB corresponding to the welding disc, and a blind groove is arranged at the position corresponding to the electrode; the PP layer is used as a medium layer for bonding the top layer PCB and the bottom layer PCB, the bottom layer PCB and the bottom layer PCB are pressed by the PP layer, and a cavity is formed inside the whole switch. The closed planar three-electrode spark switch is made into a closed type by utilizing the printed circuit board technology, so that the working environment of the switch is stabilized, the high overload resistance of the switch is improved, the cost is reduced, and the closed planar three-electrode spark switch can be widely applied to pulse power systems such as electric guns and the like. However, in some high-pressure environments or some extreme environments, the sealing structure may bring harm to the environment, and therefore the problem that the gap parameters of the switch need to be adjusted manually due to the change of the temperature and the humidity of the environment is not fundamentally solved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a high-precision controllable three-electrode switch.
The purpose of the invention can be realized by the following technical scheme:
a high-precision controllable three-electrode switch comprises a switch main body, a power supply, a pulse trigger circuit, a switch two-electrode adjusting module and a main controller, wherein the power supply, the pulse trigger circuit and the two-electrode adjusting module are all connected with the switch main body, the main controller is respectively connected with the pulse trigger circuit and the two-electrode adjusting module and is used for respectively controlling the triggering and two-electrode distance of the switch main body through the pulse trigger circuit and the two-electrode adjusting module, the three-electrode switch further comprises a temperature and humidity acquisition module and a monitoring and adjusting processing module, the output end of the temperature and humidity acquisition module is connected with the input end of the monitoring and adjusting processing module, and the output end of the monitoring and adjusting processing module is connected with the main controller; after the temperature and humidity acquisition module acquires environment temperature and humidity data, the monitoring and adjusting processing module processes the data and then sends a control signal to the main controller to adjust the distance between the two electrodes of the switch main body.
The process that processing module is adjusted in control passes through the two poles of the earth distance of main control unit regulation switch main part specifically includes:
receiving environmental temperature and humidity data collected by a temperature and humidity collecting module;
based on temperature and humidity data, obtaining the target two-pole distance of the current temperature and humidity by referring to a first comparison table;
and comparing the target two-pole distance with the current two-pole distance, and sending parameters for controlling and adjusting the two-pole distance to the main controller when the target two-pole distance is inconsistent with the current two-pole distance.
The input end of the monitoring and adjusting processing module is also connected with a power supply through a voltage acquisition module.
The process that processing module is adjusted in control passes through the two poles of the earth distance of main control unit regulation switch main part specifically includes:
receiving environmental temperature and humidity data collected by a temperature and humidity collecting module;
receiving the power supply voltage collected by the voltage collecting module;
obtaining the target two-pole distance of the current temperature and humidity by referring to a second comparison table based on temperature and humidity data and power supply voltage;
and comparing the target two-pole distance with the current two-pole distance, and sending parameters for controlling and adjusting the two-pole distance to the main controller when the target two-pole distance is inconsistent with the current two-pole distance.
The monitoring and adjusting processing module sends a parameter for controlling and adjusting the distance between two poles to the main controller and also sends a first instruction for indicating to prohibit the pulse trigger circuit from working, and after receiving a first feedback instruction which is fed back by the main controller and used for indicating to complete the adjustment of the distance between two poles, the monitoring and adjusting processing module releases the sending of the first instruction to the main controller.
The voltage acquisition module comprises a voltage sensor, a follower, an isolator and an A/D converter which are connected in sequence.
The temperature and humidity acquisition module is a ceramic humidity sensor.
The main controller is a CPU controller.
Compared with the prior art, the invention has the following beneficial effects:
1) the temperature and humidity of the environment are collected through the temperature and humidity acquisition module, the distance between the two poles of the switch main body can be adjusted in real time according to the change of the temperature and humidity of the environment, and the phenomenon of false triggering or non-triggering is prevented.
2) The monitoring and adjusting processing module of the system is additionally provided with a trigger control time sequence, when the main switch needs to act, the two-pole adjusting module is started, and after the distance between the two poles is adjusted, the high-voltage pulse triggering module is started to trigger, so that the phenomenon of switch false triggering can be completely avoided by the time sequence control.
Drawings
FIG. 1 is a schematic diagram of a conventional controllable three-pole switch;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic diagram of a temperature and humidity acquisition module;
FIG. 4 is a schematic diagram of a trigger control timing scheme;
FIG. 5 is a schematic diagram of a voltage acquisition module
FIG. 6 is a schematic diagram of a monitor adjustment processing module in an embodiment;
wherein: 1. switch main part, 2, main control unit, 3, pulse trigger circuit, 4, switch two poles of the earth regulation module, 5, power, 6, load, 7, control regulation processing module, 8, humiture collection module.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
A high-precision controllable three-electrode switch is shown in figure 2 and comprises a switch main body 1, a power supply 5, a pulse trigger circuit 3, a switch two-electrode adjusting module 4 and a main controller 2, wherein the power supply 5, the pulse trigger circuit 3 and the two-electrode adjusting module are all connected with the switch main body 1, the main controller 2 is respectively connected with the pulse trigger circuit 3 and the two-electrode adjusting module and used for respectively controlling the triggering and two-electrode distance of the switch main body 1 through the pulse trigger circuit 3 and the two-electrode adjusting module, the three-electrode switch further comprises a temperature and humidity acquisition module 8 and a monitoring and adjusting processing module 7, the output end of the temperature and humidity acquisition module 8 is connected with the input end of the monitoring and adjusting processing module 7, and the output end of the monitoring and adjusting processing module 7 is connected with the main controller 2; after the temperature and humidity acquisition module 8 acquires environment temperature and humidity data, the monitoring adjustment processing module 7 processes the data and then sends a control signal to the main controller 2 to adjust the distance between the two electrodes of the switch main body 1.
The main controller 2 is a CPU controller. The principle of the temperature and humidity acquisition module 8 is shown in fig. 3, or in other embodiments, the temperature and humidity acquisition module 8 may be a ceramic humidity sensor.
The process that the monitoring and adjusting processing module 7 adjusts the distance between the two poles of the switch main body 1 through the main controller 2 specifically comprises the following steps: receiving environmental temperature and humidity data acquired by a temperature and humidity acquisition module 8, and obtaining the target two-pole distance of the current temperature and humidity by referring to a first comparison table based on the temperature and humidity data; and comparing the target two-pole distance with the current two-pole distance, and sending parameters for controlling and adjusting the two-pole distance to the main controller 2 when the target two-pole distance is inconsistent with the current two-pole distance. Wherein the first look-up table may be identical to an existing manually adjusted look-up table.
In another embodiment of the present application, the input terminal of the monitoring and adjusting processing module 7 is further connected to the power supply 5 through a voltage collecting module. As shown in fig. 6, the process of adjusting the distance between the two poles of the switch main body 1 by the monitoring and adjusting module 7 through the main controller 2 specifically includes: receiving environmental temperature and humidity data collected by a temperature and humidity collecting module 8; receiving the voltage of the power supply 5 collected by the voltage collecting module; obtaining the target two-pole distance of the current temperature and humidity by referring to a second comparison table based on temperature and humidity data and the voltage of the power supply 5; and comparing the target two-pole distance with the current two-pole distance, and sending parameters for controlling and adjusting the two-pole distance to the main controller 2 when the target two-pole distance is inconsistent with the current two-pole distance. This may be particularly shown in figure 4. Wherein the second look-up table may be identical to an existing manually adjusted look-up table.
The monitoring and adjusting processing module 7 sends a parameter for controlling and adjusting the distance between two poles to the main controller 2 and also sends a first instruction for indicating to prohibit the pulse trigger circuit 3 from working, and after receiving a first feedback instruction which is fed back by the main controller 2 and used for indicating to complete the adjustment of the distance between two poles, the monitoring and adjusting processing module 7 releases the sending of the first instruction to the main controller 2.
As shown in fig. 5, the voltage acquisition module includes a voltage sensor, a follower, an isolator, and an a/D converter, which are connected in sequence.

Claims (8)

1. A high-precision controllable three-electrode switch comprises a switch main body, a power supply, a pulse trigger circuit, a switch two-electrode adjusting module and a main controller, wherein the power supply, the pulse trigger circuit and the two-electrode adjusting module are all connected with the switch main body; after the temperature and humidity acquisition module acquires environment temperature and humidity data, the monitoring and adjusting processing module processes the data and then sends a control signal to the main controller to adjust the distance between the two electrodes of the switch main body.
2. The high-precision controllable three-electrode switch according to claim 1, wherein the process of adjusting the distance between the two poles of the switch body by the monitoring and adjusting module through the main controller specifically comprises:
receiving environmental temperature and humidity data collected by a temperature and humidity collecting module;
based on temperature and humidity data, obtaining the target two-pole distance of the current temperature and humidity by referring to a first comparison table;
and comparing the target two-pole distance with the current two-pole distance, and sending parameters for controlling and adjusting the two-pole distance to the main controller when the target two-pole distance is inconsistent with the current two-pole distance.
3. A high accuracy controllable three-electrode switch according to claim 1, characterized in that the input terminal of said monitoring and regulating processing module is further connected to a power supply via a voltage collecting module.
4. The high-precision controllable three-electrode switch according to claim 3, wherein the process of adjusting the distance between the two poles of the switch body by the monitoring and adjusting module through the main controller specifically comprises:
receiving environmental temperature and humidity data collected by a temperature and humidity collecting module;
receiving the power supply voltage collected by the voltage collecting module;
obtaining the target two-pole distance of the current temperature and humidity by referring to a second comparison table based on temperature and humidity data and power supply voltage;
and comparing the target two-pole distance with the current two-pole distance, and sending parameters for controlling and adjusting the two-pole distance to the main controller when the target two-pole distance is inconsistent with the current two-pole distance.
5. The high-precision controllable three-electrode switch is characterized in that the monitoring and adjusting processing module sends a parameter for controlling and adjusting the distance between two electrodes to the main controller and also sends a first instruction for indicating to prohibit the pulse trigger circuit from working, and after receiving a first feedback instruction which is fed back by the main controller and used for indicating to complete the adjustment of the distance between two electrodes, the monitoring and adjusting processing module releases the sending of the first instruction to the main controller.
6. A high accuracy controllable three-pole switch according to claim 1, wherein said voltage acquisition module comprises a voltage sensor, a follower, an isolator and an a/D converter connected in sequence.
7. The high-precision controllable three-electrode switch according to claim 1, wherein the temperature and humidity acquisition module is a ceramic humidity sensor.
8. A high accuracy controllable three-pole switch according to claim 1, wherein said master controller is a CPU controller.
CN202010053226.3A 2020-01-17 2020-01-17 High-precision controllable three-electrode switch Pending CN113138567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010053226.3A CN113138567A (en) 2020-01-17 2020-01-17 High-precision controllable three-electrode switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010053226.3A CN113138567A (en) 2020-01-17 2020-01-17 High-precision controllable three-electrode switch

Publications (1)

Publication Number Publication Date
CN113138567A true CN113138567A (en) 2021-07-20

Family

ID=76809633

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010053226.3A Pending CN113138567A (en) 2020-01-17 2020-01-17 High-precision controllable three-electrode switch

Country Status (1)

Country Link
CN (1) CN113138567A (en)

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