Constant temperature control module and microwave scintiloscope

Abstract

The invention discloses a microwave scintiloscope, comprising an antenna reflection metal cover, a constant temperature heating module and a heat conduction connecting piece, wherein a constant temperature control module is composed of a controller, a PWM duty ratio pulse generator, a heating circuit and a heating resistor, which are connected with each other in sequence, a temperature sensing probe is installed in the antenna reflection metal cover to transmit temperature collection data to the controller, the controller uses the PID technology to calculate the data returned by the temperature sensing and converts the data into an output signal of the controller, the PWM duty ratio pulse generator converts the output signal into a PWM waveform of a corresponding duty ratio for output, theheating resistor is heated by the heating circuit, and the heat is transferred to the antenna reflection metal cover by the heat conduction connecting piece. The circuit and control structure designof the microwave scintiloscope disclosed by the invention is simple, the heat conduction efficiency is high, and the microwave scintiloscope capable of providing reliable analytical data for the scientific research while working in a stable temperature environment is provided while achieving the purpose of saving resources and reducing the cost.

Description

technical field [0001] The invention belongs to the field of surface flux observation, and in particular relates to a constant temperature control module and a microwave scintillator equipped with the constant temperature control module. Background technique [0002] Surface flux, that is, the exchange of momentum, sensible heat and latent heat flux between the surface and the atmosphere, this exchange occurs near the surface, is an important parameter to characterize the forcing of the underlying surface and its interaction with the atmosphere, and its measurement parameters It can be applied to agriculture, meteorology, hydrology, weather forecast, energy balance and other fields, and is of great significance to water resources management, hydrology, meteorology, agriculture, etc. Therefore, how to more accurately calculate the surface flux on a large-scale area under natural conditions has always been one of the research contents of meteorologists and hydrologists. [00...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the receiver of the existing microwave scintillation instrument has a decrease in measurement accuracy and stability due to its own temperature change, the present invention provides a microwave scintillation instrument equipped with a temperature control module using PID (proportional, integral, differential) technology

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