2.4 GHz handheld nonlinear node detector

Abstract

The invention discloses a 2.4 GHz handheld nonlinear node detector, comprising a host, a rotating shaft and a handle. The host comprises a transmitter, a 4.8 GHz receiver, a 7.2 GHz receiver, a controller, a display screen, a lowpass filter, a 4.8 GHz bandpass filter, a 7.2 GHz bandpass filter, a 2.4 GHz antenna, a 4.8 GHz antenna and a 7.2 GHz antenna. The detector has the advantages that the detector is small and compact in size and light and convenient in usage and has a detection result judgment function. The transmitting frequency of the detector can be improved to 2.4 GHz. The detection performance is greatly improved. The detector has pulse transmitting and automatic power adjusting functions. The power consumption can be reduced, and the detection effectiveness also can be improved. According to the detector, idle channels can be automatically searched, surrounding electromagnetic interference can be kept away, and the accuracy of detecting an electronic target is improved.

Description

technical field [0001] The invention relates to a 2.4GHz hand-held non-linear node detector, which belongs to the technical fields of security inspection and explosion removal and technical reconnaissance. Background technique [0002] Currently, nonlinear junction detectors are used to probe electronic devices containing semiconductor nonlinear junctions. Semiconductor junctions exist in diodes and triodes, which are the basic elements of electronic circuits and are widely used in various electronic devices. Therefore, it is possible to determine whether there is an electronic device by detecting the semiconductor junction. The principle of the nonlinear node detector is to irradiate a nonlinear node with a sufficiently powerful electromagnetic wave, and detect the harmonic signal of the original emission signal radiated by the nonlinear node. The nonlinear node detector determines whether there is a nonlinear node by detecting the harmonic components, and judges the type...

AI Technical Summary

Problems solved by technology

[0003] However, the traditional existing nonlinear node detectors also have some shortcomings, such as bulky structure, large volume, and heavy weight. If they are to be used for a long time, it will be a great test for the operator's arm strength and physical strength

The antenna of the previous nonlinear node detector is connected to the main unit through a bulky telescopic rod, or the connection line is directly exposed outside the main unit, and the structural design is not very reasonable

In addition, the minimum length of the previous nonlinear node detector is 45 cm when retracted, and the length in the working state is generally more than 80 cm, and the weight is generally more than 2 kg.

[0004] Existing nonlinear node detectors require users to judge the type of nonlinear nodes detected by themselves, and the detection results are not intuitive enough

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