Surface normal load and temperature double-parameter detecting system

Abstract

The invention discloses a surface normal load and temperature double-parameter detecting system. The system comprises a sensing unit, a detecting circuit unit and a processing circuit unit; the sensing unit comprises flexible MRE sensing layer with voltage sensibility and temperature sensibility, an upper electrode layer arranged on the upper surface of the flexible MRE sensing layer, and a lower electrode layer arranged on the lower surface of the flexible MRE sensing layer; the detecting circuit unit comprises a ranks strobe circuit, a resistance detecting circuit for detecting resistance and a capacitance detecting circuit for detecting capacitance, and the resistance detecting circuit and the capacitance detecting circuit are connected to the ranks strobe circuit respectively; the processing circuit unit comprises a MCU, a signal input terminal of the MCU is connected with signal output terminals of the resistance detecting circuit and the capacitance detecting circuit, and a signal output terminal of the MCU is connected with signal input terminal of the ranks strobe circuit. The system can simultaneously achieve a rapid, accurate, and reliable description of the surface normal load and temperature distribution, can be used for detecting the surface normal load and temperature variation of a device in real time, and is beneficial to mastering running conditions of the device in real time.

Description

technical field [0001] The invention relates to the field of detection of normal load and temperature on the surface of an object, in particular to a detection system capable of simultaneously detecting dual parameters of surface normal load and temperature. Background technique [0002] In high-speed moving equipment (or tools), such as aircraft, ships, and high-speed vehicles, the surface of the shell, the surface of the propeller, and the surface of the rotor blade all interact with the external unsteady flow medium. The normal load on the contact surface changes at any time, which affects the structural strength and aerodynamic characteristics of the airframe. In addition, due to the friction between the shell surface and the external unsteady flow medium during high-speed motion, the surface temperature may rise locally, affecting the safe operation of the equipment. Therefore, the surface load and temperature changes of the equipment are very important to the mechanic...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, there is no effective detection system that can accurately reflect the normal load and temperature distribution of the measured surface at the same time

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