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Portable short-wave radio circuit electromagnetic compatibility fault searching instrument

An electromagnetic compatibility, short-wave radio technology, applied in electrical components, transmission monitoring, transmission systems, etc., can solve the problems of single function, complex operation, high cost, and achieve the effect of multiple functions, simple operation and convenient operation.

Pending Publication Date: 2022-02-01
CHINA NORTH VEHICLE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In view of this, the present invention provides a portable short-wave radio circuit electromagnetic compatibility fault finding instrument, which can solve the problem of large volume, single function, and low The operation is complicated, the cost is high, and the problem of being unable to be widely used in the field is able to analyze, judge, locate and eliminate the faults of the receiving and sending circuits of the short-wave radio station and the electromagnetic compatibility system of the power supply circuit

Method used

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  • Portable short-wave radio circuit electromagnetic compatibility fault searching instrument
  • Portable short-wave radio circuit electromagnetic compatibility fault searching instrument
  • Portable short-wave radio circuit electromagnetic compatibility fault searching instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] When present embodiment is for the filter that is set in the electromagnetic compatibility system of receiving and transmitting circuit and power supply circuit thereof for short-wave radio station, shielding net (cover), grounding, when abnormality occurs in wiring, how to utilize described fault finding instrument to carry out interference frequency Display, to quickly locate the fault, and finally complete the process of troubleshooting;

[0084] Step 1. From the fault phenomena of the electromagnetic compatibility system of the radio station, preliminarily judge the fault location, such as the failure of the receiver part, the transmitter part or the power supply part;

[0085] Step 2, start with the suspected circuit, and use the probe to touch this part of the circuit step by step;

[0086] Step 3, observe the head of the frequency indicator and read the relevant frequency value;

[0087] Step 4, according to the displayed frequency value, if the indicator is rel...

Embodiment 2

[0092] When the present embodiment is aimed at the filter that is set in the electromagnetic compatibility system of short-wave radio receiving and sending circuit and power supply circuit thereof, shielding net (cover), grounding, wiring appear abnormal, how to utilize described fault finder to carry out interference magnitude Value display, so as to quickly locate the fault, and finally complete the process of troubleshooting;

[0093] Step 1. From the fault phenomena of the electromagnetic compatibility system of the radio station, preliminarily judge the fault location, such as the failure of the receiver part, the transmitter part or the power supply part;

[0094] Step 2, start with the suspected circuit, and use the probe to touch this part of the circuit step by step;

[0095] Step 3, observe the interference indicator meter head, and read the relevant peak voltage value;

[0096] Step 4, according to the displayed peak voltage value, if the indicator is relatively st...

Embodiment 3

[0101] This embodiment is for the filter, shielding net (cover), grounding and wiring that are set in the electromagnetic compatibility system of the receiving and sending circuit of the shortwave radio station and its power supply circuit. parts, in order to quickly conduct troubleshooting, and finally complete the process of troubleshooting;

[0102] Step 1. Preliminarily determine the fault location from the fault phenomenon of the electromagnetic compatibility system of the radio station, such as the failure of the receiver part, the transmitter part or the power supply part;

[0103] Step 2, start with the suspected circuit, and use the probe to touch this part of the circuit step by step;

[0104]Step 3, observe the numerical display of the frequency indicating meter and the interference indicating meter and the color of the judgment result indicator light;

[0105] Step 4, judge whether there is electromagnetic interference according to the displayed frequency value, p...

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Abstract

The invention discloses a portable short-wave radio circuit electromagnetic compatibility fault searching instrument which comprises a probe module, a frequency band resonance module, a signal shaping and amplifying module, a microprocessor module, a frequency signal shaping and amplifying module, a frequency driving module, an interference signal shaping module, a peak voltage amplifying and driving module and a display module, wherein a probe of the probe module touches a corresponding element test point of the preliminarily suspected circuit, and if electromagnetic interference exists, an interference signal generated by the electromagnetic interference is collected by the frequency band resonance module; the frequency band resonance module respectively outputs interference signals to the frequency signal shaping and amplifying module, the signal shaping and amplifying module and the interference signal shaping module for shaping and amplifying; the microprocessor module is used for judging the received shaped and amplified interference signal and controlling the display module to emit a corresponding color. According to the invention, faults occurring in the electromagnetic compatibility system of the signal receiving and transmitting circuit and the power supply circuit of the short-wave radio station can be analyzed, judged, positioned and eliminated.

Description

technical field [0001] The invention belongs to the technical field of short-wave radio stations, in particular to a portable short-wave radio circuit electromagnetic compatibility fault finder. Background technique [0002] The electromagnetic compatibility system of the receiving and sending circuits of the short-wave radio station and its power supply circuit is mainly composed of four parts: corresponding filters, shielding (cover wire net), grounding and reasonable wiring. The electromagnetic compatibility system of the radio station is abnormal, and the fault also exists in the above four major parts. At present, the electromagnetic compatibility system of the receiving and sending circuits of the short-wave radio station and its power supply circuit is relatively complete, and various anti-interference measures ensure the normal operation of the radio station under various circumstances. However, due to the portability of the radio station, the particularity of the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/345H04L41/0677
CPCH04B17/345H04L41/0677
Inventor 赵骥李小健聂秀丽杜晓琳焦美李燕刘威熊瑛
Owner CHINA NORTH VEHICLE RES INST
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