A wireless temperature measurement transmitter controller for low-frequency acquisition of internal combustion engine piston surface temperature

Abstract

The invention discloses a wireless temperature measurement transmitter controller for low-frequency acquisition of the piston surface temperature of an internal combustion engine, which belongs to the technical field of engines, electronic circuits and communications, and includes a temperature signal acquisition module. The output end of the temperature signal acquisition module is connected with an AD conversion module. The output end of the AD conversion module is connected with a wireless transmitting module. In the present invention, through the designed temperature signal collector and AD module, the overall structure is small and light, easy to install in the small and complex environment in the engine cylinder, and meets the temperature measurement requirements of the reliability and thermal load test in the engine. Realize the power supply to the controller, and improve the anti-static ability of the controller, prevent abnormalities caused by transient interference events such as static electricity, improve the stability of the working state, effectively adapt to the complex environment of the piston movement, and improve the real-time Measurement reliability.

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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