Signal intensity detection system, method and device

Abstract

The embodiment of the invention provides a signal intensity detection system, method and device. The system comprises a signal receiver which is used for receiving a to-be-detected optical signal, andconverting the to-be-detected optical signal into a current signal; a signal detector which comprises a resonant cavity and a graphene layer covering the surface of the resonant cavity; and a signalintensity recognition device which is used for detecting to obtain an initial resonance mode before the resonance mode of the resonance cavity is changed according to the heat, detecting a present resonance mode after the resonance mode is changed according to the heat, and obtaining the signal intensity of the optical signal to be detected according to the variable quantity of the current resonance mode relative to the initial resonance mode. The signal receiver and the graphene layer form a circuit loop, and when the current signal flows through the graphene layer, the graphene layer generates heat and conducts the heat to the resonant cavity, so that the resonant cavity changes a resonant mode according to the heat when receiving the heat. Thus, the sensitivity during signal intensity detection is improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of signal strength detection, and in particular, to a signal strength detection system, method and device. Background technique [0002] The traditional signal strength detection method mainly uses the semiconductor material to absorb the number of photons contained in the signal to be measured (the photon energy is greater than the material transition level), and then obtains the signal power (or strength) through the transition model and parameter values, such as based on silicon Visible light detectors of materials, infrared detectors based on gallium arsenide, etc. [0003] However, this type of device not only has a large volume and high cost, but also has strict requirements on the directionality of the light source and the size of the spot, and the sensitivity is also poor. Contents of the invention [0004] Embodiments of the present invention provide a signal strength detect...

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Problems solved by technology

[0004] Embodiments of the present invention provide a signal strength detection system, method and device to solve the problem of poor sensitivity of devices in the prior art when detecting signal strength

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