Wireless temperature measurement emission controller for low-frequency acquisition of surface temperature of piston of internal combustion engine

Abstract

The invention discloses a wireless temperature measurement emission controller for the low-frequency acquisition of the surface temperature of a piston of an internal combustion engine and belongs to the technical field of engines, electronic circuits and communication. The wireless temperature measurement emission controller comprises a temperature signal acquisition module, the output end of the temperature signal acquisition module is connected with an AD conversion module, and the output end of the AD conversion module is connected with a wireless emission module. According to the controller of the invention, the temperature signal collector and the AD module are designed, so that the whole structure of the controller is small and light, the installation of the controller in a narrow and complex environment in an engine cylinder is facilitated, the temperature measurement requirements of reliability and thermal load tests in an engine are met, power supply to the controller is realized through a power supply module, the anti-static capability of the controller is improved, abnormality caused by transient interference events such as static electricity is prevented, the stability of the working state is improved, the controller effectively adapts to the complex motion environment of the piston, and improves the reliability of real-time measurement.

Description

technical field [0001] The invention belongs to the technical fields of engines, electronic circuits and communications, and in particular relates to a wireless temperature measuring and transmitting controller for low-frequency acquisition of the surface temperature of internal combustion engine pistons. Background technique [0002] As the power plant with the highest thermal efficiency, the internal combustion engine has an irreplaceable position in the field of transportation, especially in freight, passenger and ship transportation, where it plays a pivotal role. In an internal combustion engine, the piston is a "heart" component that plays key roles in heat-power conversion, flow field organization, and combustion organization. However, the working conditions of the piston are very harsh, and it is in direct contact with high-temperature gas (2500K), and it is subjected to the coupling effect of alternating thermal stress and alternating mechanical stress, which is pro...

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Problems solved by technology

[0004] The purpose of the present invention is: in order to solve the problem that the piston is always reciprocating, and is in the harsh environment of airtightness, electromagnetic interference, high temperature and high pressure, ordinary temperature measuring equipment cannot work in this environment, therefore, an engine reliability development urgently needs a A reliable real-time measurement mechanism is convenient for evaluating and adjusting the thermal load of the piston, and a wireless temperature measurement transmitter controller for low-frequency acquisition of the internal combustion engine piston surface temperature is proposed

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