CN216696506U - CS101 and CS106 test device suitable for DC and AC are single-phase - Google Patents

Abstract

The utility model discloses a CS101 and CS106 test device suitable for DC and AC single phases.A LISN end is connected with a high potential line and a return wire; a 10uF capacitor is connected between the high potential line and the return line; the N port of the EUT end is connected with the N port of the LISN end through a return wire; the L port of the EUT end is connected with the L port of the LISN end through a first program control module; the second program control module is respectively connected with the first program control module, the calibration port, the L port of the LISN end, the L port of the interference monitoring end and the signal injection port; connecting an N port of the interference monitoring end with a return line; the LISN is connected between the LISN end and the power supply; the first oscilloscope is connected with the interference monitoring end, and the isolation transformer is connected with the first oscilloscope; the second oscilloscope and the calibration resistor are both connected with the calibration port; the spike generator and the coupling transformer are connected with a signal injection port. The utility model can ensure the smooth test and improve the test efficiency.

Description

CS101 and CS106 test device suitable for DC and AC are single-phase

Technical Field

The utility model relates to the technical field of sound boxes, in particular to a CS101 and CS106 test device suitable for DC and AC single phases.

Background

The GJB151 series standards (including GJB151A-97, GJB152A-97 and GJB151B-2013) specify electromagnetic emission and sensitivity requirements and test methods for military electronic, electrical and electromechanical equipment and subsystems, including 21 requirements of four categories of conducted emission, conducted sensitivity, radiated emission and radiated sensitivity, and provide corresponding test methods. The standard is a universal electromagnetic compatibility basic standard of the three military, is suitable for demonstration, design, production, test and ordering of military equipment and subsystems, and provides electromagnetic compatibility design and acceptance criteria for research and ordering units.

The CS101 (power line conducted sensitivity) is a necessary item in the GJB151 standard, the CS106 (power line spike conducted sensitivity) is widely applicable to platform devices, and many aircraft platform device ordering parties may also make a request as a necessary item, but the tests of the CS101 and CS106 items have the following disadvantages:

1) the coupling end of the coupling transformer used in the test project has a minimum resistance of 0.5 ohm and an inductance of 600 uH. For a high-power EUT (such as 10A), due to the series connection of the coupling transformer, the 0.5 ohm internal resistance generates voltage drop, and the EUT cannot work when the voltage drop is too large; the inductor of the coupling coil of 600uH may resonate with the EUT filter circuit, so that the EUT cannot work and the test cannot be carried out.

2) The connection mode of each module is relatively complex and tedious, brings certain difficulty to actual operation, and reduces the test efficiency.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a CS101 and CS106 test device which is suitable for DC and AC single phases, and can ensure that the test is carried out smoothly and improve the test efficiency.

In order to achieve the purpose, the technical scheme provided by the utility model is as follows:

a CS101 and CS106 test device suitable for DC and AC single phases comprises a coupling transformer, an L ISN, a first oscilloscope, a 10uF capacitor, an isolation transformer, a power amplifier, a signal generator, a second oscilloscope, a calibration resistor, a spike signal generator and a wired circuit board;

the circuit board is provided with an L ISN end, an EUT end, an interference monitoring end, a calibration port, a signal injection port, a first program control module and a second program control module;

the LISN end is connected with a high potential line and a return line;

the 10uF capacitor is connected between the high potential line and the return line;

the N port of the EUT end is connected with the N port of the L ISN end through a return line;

the L port of the EUT end is connected with the L port of the L ISN end through a first program control module;

the second program control module is respectively connected with the first program control module, the calibration port, the L port of the LI SN end, the L port of the interference monitoring end and the signal injection port;

the N port of the interference monitoring end is connected with a return line;

the LISN is connected between the L ISN end and a power supply;

the first oscilloscope is connected with the interference monitoring end, and the isolation transformer is connected with the first oscilloscope;

the second oscilloscope and the calibration resistor are both connected with the calibration port;

the signal injection port is connected with one end of the coupling transformer or the spike signal generator;

and the signal generator is connected with the other end of the coupling transformer through a power amplifier.

Furthermore, the device also comprises a shell, wherein a plurality of mounting holes matched with the LI SN end, the EUT end, the interference monitoring end, the calibration port and the signal injection port are formed in the shell;

the circuit board and the 10uF capacitor are all arranged in the shell, and the LISN end, the EUT end, the interference monitoring end, the calibration port and the signal injection port penetrate through the corresponding mounting holes and penetrate out of the shell;

the LISN, the first oscilloscope, the isolation transformer, the power amplifier, the signal generator, the second oscilloscope, the calibration resistor, the coupling transformer and the spike signal generator are all externally arranged outside the shell; the LISN, the first oscilloscope, the second oscilloscope, the calibration resistor, the coupling transformer and the spike signal generator are connected with corresponding ports.

Furthermore, the first program control module and the second program control module are both relays.

Furthermore, the EUT end adopts an elastic binding post.

Compared with the prior art, the technical scheme has the following principles and advantages:

1) this technical scheme changes original circuit connection to add first programme-controlled module and second programme-controlled module, constitute electric incessant switching circuit, so that EUT equipment (equipment under test) is not influenced by coupling transformer secondary internal inductance and resistance when inserting EUT end start-up work, thereby the guarantee can normally work in the experiment.

2) This technical scheme provides audio-visual wiring port, makes things convenient for the connection of each module, has improved experimental efficiency greatly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the services required for the embodiments or the technical solutions in the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a switching circuit in a CS101 and CS106 test apparatus suitable for DC and AC single phases in accordance with the present invention;

FIG. 2 is a schematic diagram of the configuration of the test device for CS101 and CS106 suitable for DC and AC single phases (the housing is omitted) in the test of calibrating CS 101;

FIG. 3 is a schematic configuration diagram (with the housing omitted) of a DC and single-phase AC power line CS101 tested by a CS101 and CS106 testing device suitable for DC and AC single-phase of the utility model;

fig. 4 is a schematic configuration diagram (with the housing omitted) of a CS101 and CS106 testing device suitable for DC and AC single phases according to the present invention when testing a CS106 power line for DC and single phase AC.

Reference numerals:

1-a coupling transformer; 2-LI SN; 3-a first oscilloscope; 4-10uF capacitance; 5-isolating the transformer; 6-a power amplifier; 7-a signal generator; 8-a second oscilloscope; 9-calibrating the resistance; 10-spike generator.

Detailed Description

The utility model will be further illustrated with reference to specific examples:

the CS101 and CS106 testing apparatus suitable for DC and AC single phases described in this embodiment includes a coupling transformer 1, an L ISN2 (line impedance stabilization network device), a first oscilloscope 3, a 10uF capacitor 4, an isolation transformer 5, a power amplifier 6, a signal generator 7, a second oscilloscope 8, a calibration resistor 9, a spike signal generator 10, and a circuit board;

as shown in fig. 1, the circuit board is provided with an LISN end, an EUT end, an interference monitoring end, a calibration port, a signal injection port, a first program control module and a second program control module; the LI SN end is connected with the high potential line and the return line; the 10uF capacitor 4 is connected between the high potential line and the return line; the N port of the EUT end is connected with the N port of the L ISN end through a return line; the L port of the EUT end is connected with the L port of the L ISN end through a first program control module; the second program control module is respectively connected with the first program control module, the calibration port, the L port of the L ISN end, the L port of the interference monitoring end and the signal injection port; and the N port of the interference monitoring end is connected with a return line.

Specifically, in this embodiment, the apparatus further includes a housing, and the housing is provided with a plurality of mounting holes adapted to the L ISN end, the EUT end, the interference monitoring end, the calibration port, and the signal injection port; the circuit board, the module arranged on the circuit board and the 10uF capacitor 4 are all arranged in the shell, and the LI SN end, the EUT end, the interference monitoring end, the calibration port and the signal injection port penetrate through the corresponding mounting holes and penetrate out of the shell.

Specifically, in this embodiment, the LI SN2, the first oscilloscope 3, the isolation transformer 5, the power amplifier 6, the signal generator 7, the second oscilloscope 8, the calibration resistor 9, the coupling transformer 1, and the spike generator 10 are also externally disposed outside the housing, wherein the LI SN2 is connected between the L ISN terminal and the power supply; the first oscilloscope 3 is connected with the interference monitoring end, and the isolation transformer 5 is connected with the first oscilloscope 3; the second oscilloscope 8 and the calibration resistor 9 are both connected with the calibration port;

specifically, in this embodiment, the first program control module and the second program control module are both relays. The EUT end adopts an elastic wiring terminal.

The working principle of the embodiment is as follows:

when CS101 test calibration needs to be performed, the coupling transformer 1 is connected to the signal injection port, the signal generator 7 is connected to the coupling transformer 1 through the power amplifier 6, the first program control module is adjusted to be in an on-off state, and the second program control module is adjusted to be in an off-on state, so that the second oscilloscope 8 and the calibration resistor 9 are connected to a circuit, as shown in fig. 2.

When a CS101 test (power line conduction sensitivity test) needs to be performed, an EUT device is connected to the EUT end, a coupling transformer 1 is connected to the signal injection port, a signal generator 7 is connected to the coupling transformer 1 through a power amplifier 6, the first program control module is adjusted to be in an off-on state, and the second program control module is adjusted to be in an on-off state, so that the EUT device, the L I SN2, the first oscilloscope 3, and the isolation transformer 5 are connected to a circuit, as shown in fig. 3. And starting the EUT equipment, and injecting an interference signal for testing after the EUT equipment is preheated and stably works.

When a CS106 test (power line spike conduction sensitivity test) needs to be performed, an EUT device is connected to the EUT end, a spike generator is connected to the signal injection port, the first program control module is adjusted to be in an off-on state, and the second program control module is adjusted to be in an on-off state, so that the EUT device, the L I SN2, the first oscilloscope 3, and the isolation transformer 5 are connected to a circuit, as shown in fig. 4.

In the embodiment, the original circuit connection is changed, and the first program control module and the second program control module are added to form an electrical uninterrupted switching circuit, so that the EUT equipment (tested equipment) is not influenced by the secondary internal inductance and resistance of the coupling transformer when being connected to the EUT end for starting, and normal work in a test is guaranteed.

This embodiment is through audio-visual wiring port, makes things convenient for the connection of each module, has improved experimental efficiency greatly.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that variations based on the shape and principle of the present invention should be covered within the scope of the present invention.

Claims (4)

1. A CS101 and CS106 test device suitable for DC and AC single phases comprises a coupling transformer, an LISN, a first oscilloscope, a 10uF capacitor, an isolation transformer, a power amplifier, a signal generator, a second oscilloscope, a calibration resistor and a spike signal generator, and is characterized by further comprising a wired circuit board;

the circuit board is provided with an LISN end, an EUT end, an interference monitoring end, a calibration port, a signal injection port, a first program control module and a second program control module;

the LISN end is connected with a high potential line and a return line;

the 10uF capacitor is connected between the high potential line and the return line;

the N port of the EUT end is connected with the N port of the LISN end through a return wire;

the L port of the EUT end is connected with the L port of the LISN end through a first program control module;

the second program control module is respectively connected with the first program control module, the calibration port, the L port of the LISN end, the L port of the interference monitoring end and the signal injection port;

the N port of the interference monitoring end is connected with a return line;

the LISN is connected between the LISN end and a power supply;

the first oscilloscope is connected with the interference monitoring end, and the isolation transformer is connected with the first oscilloscope;

the second oscilloscope and the calibration resistor are both connected with the calibration port;

the signal injection port is connected with one end of the coupling transformer or the spike signal generator;

and the signal generator is connected with the other end of the coupling transformer through the power amplifier.

2. The apparatus of claim 1, further comprising a housing having a plurality of mounting holes for accommodating the LISN port, the EUT port, the interference monitoring port, the calibration port, and the signal injection port;

the circuit board and the 10uF capacitor are all arranged in the shell, and the LISN end, the EUT end, the interference monitoring end, the calibration port and the signal injection port penetrate through the corresponding mounting holes and penetrate out of the shell;

the LISN, the first oscilloscope, the isolation transformer, the power amplifier, the signal generator, the second oscilloscope, the calibration resistor, the coupling transformer and the spike signal generator are all externally arranged outside the shell; the LISN, the first oscilloscope, the second oscilloscope, the calibration resistor, the coupling transformer and the spike signal generator are connected with corresponding ports.

3. The device for testing CS101 and CS106 suitable for use with DC and AC single phases according to claim 1 or 2, wherein the first and second programmable modules are relays.

4. The apparatus of claim 1 or 2, wherein the EUT terminal is a flexible terminal.

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