North University of China

Lei Zhang

Jijun Xiong

Qiulin Tan

Helei Dong

Wendong Zhang

Wenyi Liu

Xiaorui Liang

Xiangrong Li

Junqi Pang

Hua Ren

Yanyan Niu

The present disclosure discloses a surface acoustic wave temperature sensor and a manufacturing method thereof. The surface acoustic wave temperature sensor includes a sensing module and an antenna module electrically connected to each other. The antenna module includes a first high-temperature-resistant substrate and a patterned antenna formed on a surface of the first high-temperature-resistant substrate, a recess is formed in a first surface of the first high-temperature-resistant substrate, and the sensing module is fixed in the recess. The sensing module and the antenna module of the surface acoustic wave temperature sensor provided by the present disclosure form a whole. Therefore, compared with the prior art, the volume is greatly reduced, and wireless passive temperature monitoring in a high-temperature and narrow space can be better implemented. Moreover, the sensing module can be integrated in the antenna module, and such a structure is more convenient for batch processing.

Manufacturing method for a surface acoustic wave temperature sensor

The application belongs to the technical field of signal acquisition, and discloses a stacked large-capacity signal acquisition and transmission system, which includes an adapter board, n acquisition boards, central control boards and a communication board sequentially laminated; where a circuit structure of each of the acquisition boards is the same; the adapter board is provided with circuit board interfaces and a plurality of first board-level connectors; an m-th acquisition board is provided with a signal acquisition and conditioning module, at least n−m+1 second board-level connectors and at least m third board-level connectors; the central control board is provided with a signal conversion module, at least one fourth board-level connector and at least one fifth board-level connector.

Stacked large-capacity signal acquisition and transmission system and design method thereof

A method for measuring surface temperature of a turbine blade includes following steps: step 1: cleaning a turbine blade and blowing dry; step 2: firstly, preparing a NiCrAlY (nickel-chromium-aluminum-yttrium) buffer layer and then preparing an YSZ (yttria-stabilized zirconia) insulating layer; step 3, preparing alumina sol; step 4, preparing an alumina insulating layer; step 5, preparing a strip-shaped platinum electrode layer; step 6, preparing a platinum-filled lead wire; step 7: firstly, connecting a platinum wire to a surface of a tail end of the strip-shaped platinum electrode layer, and then connecting a nickel-chromium alloy wire to a tenon end of the turbine blade; step 8, preparing alumina protective layers; and step 9, connecting two cold junctions of a thermocouple with a data collector.

Method for measuring surface temperatures of turbine blade

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Taiyuan, China

Lei Zhang