Non-contact type wire tracing method and device

Abstract

The invention discloses a non-contact type wire tracing device which comprises a transmitter and a receiver, wherein the transmitter comprises a signal generating module, a modulating module and an amplifying module. A main frequency signal generated by the signal generating module is used as a carrier signal, forms a modulating signal by a modulating module, and forms an amplifying modulating signal by the amplification of the amplifying module. The amplifying module is connected with a conducting wire and transmits the amplifying modulating signal through the conducting wire. The receiver comprises a receiving module, a frequency-selecting amplifying module, a demodulating module and an identification generation audio module, wherein the receiving module comprises a carbon rod coil for sensing the amplifying modulating signal transmitted by the transmitter, and the sensed and received amplifying modulating signal is sent to the frequency-selecting amplifying module to amplify and then demodulated by the demodulating module; the demodulated amplifying modulating signal enters the identification generation audio module to identify and generate a corresponding audio signal; and theoutput end of the identification generation audio module is connected with an indicator. The invention also discloses a non-contact type wire tracing method.

Description

technical field [0001] The invention relates to a module detection instrument, more particularly to a non-contact line-finding device for communication and computer network. Background technique [0002] With the rapid development of the network and communication industry, the communication and network capacity has increased geometrically, and the difficulty of wiring has further increased. The cable finder has become an essential tool for finding cables during the construction and daily maintenance of various metal lines such as network cables and communication cables. It can quickly and efficiently find the required cable from a large number of wire harness cables. [0003] At present, there are two kinds of known wire finders, one is a contact type: use a metal probe to directly contact the metal part of the wire core, and then use a multimeter to judge. This method needs to peel off the insulation sheath of the metal wire, which is less used due to inconvenience. One ...

AI Technical Summary

Problems solved by technology

[0005] However, the generator and receiver of the existing non-contact wire finder use audio signals, the strength is not enough, the sound effect is not good, the sensitivity is not high and there is noise, which increases the difficulty of detection work

Images