On-off testing device for internal line of loop with inductance

Abstract

The invention relates to the technical field of circuit measurement, in particular to an on-off testing device for an internal circuit of a loop with an inductor, which mainly comprises a high-frequency alternating current generating module for generating high-frequency alternating current voltage, a voltage dividing and rectifying module for performing voltage dividing and rectifying on the voltage generated by the high-frequency alternating current generating circuit, and a testing module for testing the on-off of the internal circuit of the loop with the inductor. And the comparison and display module is used for comparing the rectified output voltage with a set voltage value, and controlling the on and off of an indicator lamp according to a comparison result. Through the above structure, after the device is connected with a loop circuit with an inductor, the state of a switching value can be measured by disconnecting a contact, and the device is convenient to operate, simple in structure and suitable for an environment with a relatively high radiation dose.

Description

Technical Field

[0001] The invention relates to the technical field of circuit measurement, and in particular to a circuit continuity test device inside an inductor loop. Background Art

[0002] In the electrical system of the reactor, there are a large number of switch cabinets, valves, and motor control boxes. When a fault occurs, it is usually necessary to use a multimeter to measure some switch quantities in the circuit for fault diagnosis. However, due to the small resistance value of the inductors such as relays and transformers in the circuit, the multimeter may always display the switch quantity as off when measuring the switch quantity directly in the circuit. Therefore, in actual measurement, it is necessary to disconnect the contact points of the switch quantity before measuring. At the same time, the radiation dose in the area where some electrical systems of the reactor are located is high, and multimeters and other devices that use integrated circuits are prone to failure. Summary of the invention

[0003] The purpose of the present invention is to provide a circuit continuity test device with an internal circuit of an inductor loop to solve the above-mentioned problems of the prior art.

[0004] The embodiments of the present invention are implemented by the following technical solutions:

[0005] A device for testing the continuity of an internal circuit of an inductive loop, characterized by comprising:

[0006] A high-frequency AC generating module, wherein the high-frequency AC generating circuit is used to generate a high-frequency AC voltage;

[0007] A voltage-dividing and rectifying module, wherein the voltage-dividing and rectifying circuit is connected to the high-frequency AC generating circuit and is used to divide and rectify the voltage generated by the high-frequency AC generating circuit;

[0008] A comparison and display module, which is connected to the high-frequency AC generation module and the voltage-dividing rectifier module, and is used to compare the rectified output voltage with the set voltage value, and control the turning off and on of the indicator light according to the comparison result;

[0009] A power supply module is connected to the high-frequency AC generating module, the voltage dividing and rectifying module and the comparing and displaying module, and is used for supplying power to the entire device.

[0010] Preferably, the high-frequency AC generation module includes a processor, a first resistor, a second resistor, a first capacitor and a second capacitor;

[0011] The processor is connected to the first resistor, the second resistor, the first capacitor and the second capacitor, and the first resistor is connected to the second resistor and the first capacitor respectively.

[0012] Preferably, the voltage divider rectifier module includes a third resistor, a fourth resistor, a third capacitor and a diode, the third resistor is respectively connected to the processor, the fourth resistor, the third capacitor and the diode, the third capacitor is respectively connected to the processor and the diode, and the fourth resistor is respectively connected to the processor, the third capacitor and the diode.

[0013] Preferably, the comparison and display module includes a fifth resistor, a sixth resistor, an amplifier and an indicator light, the in-phase input terminal of the amplifier is connected to the fourth resistor, the third capacitor and the diode, the inverting input terminal of the amplifier is connected to the fifth resistor and the sixth resistor, the output terminal of the amplifier is connected to the indicator light, and the negative power supply terminal of the amplifier is connected to the sixth resistor, the first capacitor, the second capacitor, the processor, the third resistor, the fourth resistor and the third capacitor.

[0014] Preferably, the power module includes a battery and a switch, the battery is respectively connected to the first capacitor, the second capacitor, the third capacitor, the processor, the third resistor, the fourth resistor, the sixth resistor and the negative power supply terminal of the amplifier, one end of the switch is connected to the battery, and the other end is connected to the processor, the second resistor and the fifth resistor.

[0015] Preferably, the positive power supply terminal of the amplifier is connected to the upper end of the switch.

[0016] Preferably, a shell for protecting against ionizing radiation is provided outside the processor.

[0017] Preferably, controlling the indicator light to be turned off and on according to the comparison result comprises:

[0018] When the output voltage after rectification is greater than the set voltage value, the indicator light is turned on; when the output voltage after rectification is not greater than the set voltage value, the indicator light is turned off.

[0019] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects:

[0020] The device disclosed in the present invention mainly includes a high-frequency AC generation module for generating high-frequency AC voltage, a voltage-dividing and rectifying module for dividing and rectifying the voltage generated by the high-frequency AC generation circuit, and a comparison and display module for comparing the output voltage after rectification with the set voltage value, and controlling the closing and connecting of the indicator light according to the comparison result. Through the above structure, after connecting with the circuit with inductance loop, the state of the switch quantity can be measured without disconnecting the contact, which is easy to operate, and the device structure is simple, and is suitable for environments with high radiation doses. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Icon: R1-first resistor, R2-second resistor, R3-third resistor, R4-fourth resistor, R5-fifth resistor, R6-sixth resistor, C1-first capacitor, C2-second capacitor, C3-third capacitor, D1-diode, 1-high frequency AC generation module, 2-voltage divider rectifier module, 3-comparison and display module, 4-switch, 5-battery, 6-processor, 7-amplifier, 8-indicator light. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] The division of modules in this application is a logical division. There may be other division methods when implemented in actual applications. For example, multiple modules can be combined or integrated into another system, or some features can be ignored or not executed.

[0026] The modules or submodules described independently may be physically separated or not: they may be implemented by software or hardware, and some modules or submodules may be implemented by software, and the processor may call the software to implement the functions of these modules or submodules, and other modules or submodules may be implemented by hardware, such as by hardware circuits. In addition, some or all of the modules may be selected according to actual needs to achieve the purpose of the present application.

[0027] Please refer to Figure 1 , a circuit continuity test device with an inductive loop, comprising:

[0028] A high-frequency AC generating module 1, wherein the high-frequency AC generating circuit is used to generate a high-frequency AC voltage;

[0029] A voltage-dividing and rectifying module 2, wherein the voltage-dividing and rectifying circuit is connected to the high-frequency AC generating circuit and is used to divide and rectify the voltage generated by the high-frequency AC generating circuit;

[0030] A comparison and display module 3, which is connected to the high-frequency AC generation module 1 and the voltage-dividing rectifier module 2, and is used to compare the rectified output voltage with the set voltage value, and control the turning on and off of the indicator light 8 according to the comparison result;

[0031] A power supply module is connected to the high-frequency AC generating module 1, the voltage dividing and rectifying module 2 and the comparing and displaying module 3, and is used for powering the entire device.

[0032] The device disclosed in the present invention mainly includes a high-frequency AC generation module 1 for generating a high-frequency AC voltage, a voltage-dividing and rectifying module 2 for dividing and rectifying the voltage generated by the high-frequency AC generation circuit, and a comparison and display module 3 for comparing the rectified output voltage with the set voltage value, and controlling the closing and connecting of the indicator light 8 according to the comparison result. Through the above structure, after connecting with the circuit with an inductor loop, the state of the switch 4 can be measured without disconnecting the contact, which is easy to operate, and the device structure is simple, and is suitable for environments with high radiation doses.

[0033] In an exemplary embodiment of the present invention, the high-frequency AC generating module 1 includes a processor 6, a first resistor R1, a second resistor R2, a first capacitor C1 and a second capacitor C2;

[0034] The processor 6 is connected to the first resistor R1, the second resistor R2, the first capacitor C1 and the second capacitor C2. The first resistor R1 is connected to the second resistor R2 and the first capacitor C1 respectively.

[0035] Specifically, the processor 6 in the high-frequency AC generating module 11 is a ne555 chip. After the processor 6 is powered, it generates a high-frequency AC voltage with the connected first resistor R1, second resistor R2, first capacitor C1 and second capacitor C2.

[0036] In an exemplary embodiment of the present invention, the voltage divider rectifier module 2 includes a third resistor R3, a fourth resistor R4, a third capacitor C3 and a diode D1, the third resistor R3 is respectively connected to the processor 6, the fourth resistor R4, the third capacitor C3 and the diode D1, the third capacitor C3 is respectively connected to the processor 6 and the diode D1, and the fourth resistor R4 is respectively connected to the processor 6, the third capacitor C3 and the diode D1.

[0037] Specifically, the voltage-dividing rectifier module 22 is connected in series with the measured switch 4 and then connected to the high-frequency AC generating module 11. If the switch 4 is off, it is equivalent to the voltage-dividing rectifier module 22 being directly connected to the high-frequency AC generating module 11, and the rectified voltage value is higher; if the switch 4 is on, other components such as the inductor in the loop will divide the voltage, making the rectified voltage lower.

[0038] In an exemplary embodiment of the present invention, the comparison and display module 3 includes a fifth resistor R5, a sixth resistor R6, an amplifier 7 and an indicator light 8, the non-inverting input terminal of the amplifier 7 is connected to the fourth resistor R4, the third capacitor C3 and the diode D1, the inverting input terminal of the amplifier 7 is connected to the fifth resistor R5 and the sixth resistor R6, the output terminal of the amplifier 7 is connected to the indicator light 8, and the negative power supply terminal of the amplifier 7 is connected to the sixth resistor R6, the first capacitor C1, the second capacitor C2, the processor 6, the third resistor R3, the fourth resistor R4 and the third capacitor C3.

[0039] In an exemplary embodiment of the present invention, the power module includes a battery 5 and a switch 4, the battery 5 is respectively connected to the first capacitor C1, the second capacitor C2, the third capacitor C3, the processor 6, the third resistor R3, the fourth resistor R4, the sixth resistor R6 and the negative power supply terminal of the amplifier 7, one end of the switch 4 is connected to the battery 5, and the other end is connected to the processor 6, the second resistor R2 and the fifth resistor R5.

[0040] Secondly, the positive power supply terminal of the amplifier 7 is connected to the upper end of the switch 4;

[0041] The processor 6 and the amplifier 7 are both DIP packaged and plug-in installed, which is easy to replace, and each can be equipped with an ionizing radiation protection material housing.

[0042] Preferably, controlling the turning off and on of the indicator light 8 according to the comparison result comprises:

[0043] When the output voltage after rectification is greater than the set voltage value, the indicator light 8 is turned on, and when the output voltage after rectification is not greater than the set voltage value, the indicator light 8 is turned off.

[0044] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0045] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. The computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-On l yMemory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A circuit continuity test device with an inductive loop, characterized in that: include: A high-frequency AC generating module, wherein the high-frequency AC generating circuit is used to generate a high-frequency AC voltage; A voltage-dividing and rectifying module, wherein the voltage-dividing and rectifying circuit is connected to the high-frequency AC generating circuit and is used to divide and rectify the voltage generated by the high-frequency AC generating circuit; A comparison and display module, which is connected to the high-frequency AC generation module and the voltage-dividing rectifier module, and is used to compare the rectified output voltage with the set voltage value, and control the turning off and on of the indicator light according to the comparison result; A power supply module is connected to the high-frequency AC generating module, the voltage dividing and rectifying module and the comparing and displaying module, and is used for supplying power to the entire device.

2. A circuit continuity test device with an inductive loop according to claim 1, characterized in that: The high-frequency AC generation module includes a processor, a first resistor, a second resistor, a first capacitor and a second capacitor; The processor is connected to the first resistor, the second resistor, the first capacitor and the second capacitor, and the first resistor is connected to the second resistor and the first capacitor respectively.

3. A circuit continuity test device with an inductive loop according to claim 2, characterized in that: The voltage divider rectifier module includes a third resistor, a fourth resistor, a third capacitor and a diode. The third resistor is connected to the processor, the fourth resistor, the third capacitor and the diode respectively. The third capacitor is connected to the processor and the diode respectively. The fourth resistor is connected to the processor, the third capacitor and the diode respectively.

4. A circuit continuity test device with an inductive loop according to claim 3, characterized in that: The comparison and display module includes a fifth resistor, a sixth resistor, an amplifier and an indicator light, the non-inverting input terminal of the amplifier is connected to the fourth resistor, the third capacitor and the diode, the inverting input terminal of the amplifier is connected to the fifth resistor and the sixth resistor, the output terminal of the amplifier is connected to the indicator light, and the negative power supply terminal of the amplifier is connected to the sixth resistor, the first capacitor, the second capacitor, the processor, the third resistor, the fourth resistor and the third capacitor.

5. The device for testing internal circuit continuity of an inductive circuit according to claim 4, characterized in that: The power module includes a battery and a switch, the battery is respectively connected to the first capacitor, the second capacitor, the third capacitor, the processor, the third resistor, the fourth resistor, the sixth resistor and the negative power supply terminal of the amplifier, one end of the switch is connected to the battery, and the other end is connected to the processor, the second resistor and the fifth resistor.

6. The device for testing internal circuit continuity of an inductive circuit according to claim 5, characterized in that: The positive power supply terminal of the amplifier is connected to the upper end of the switch.

7. The device for testing internal circuit continuity of an inductive circuit according to claim 2, characterized in that: A shell for protecting against ionizing radiation is arranged outside the processor.

8. The device for testing internal circuit continuity of an inductive circuit according to claim 1, characterized in that: The controlling the turning off and on of the indicator light according to the comparison result comprises: When the output voltage after rectification is greater than the set voltage value, the indicator light is turned on; when the output voltage after rectification is not greater than the set voltage value, the indicator light is turned off.

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