North University of China

Qiulin Tan

Jijun Xiong

Lei Zhang

Wenyi Liu

Xiaorui Liang

Helei Dong

Wendong Zhang

Pinggang Jia

Yingping Hong

Hua Ren

Ting Liang

Yanyan Niu

Guocheng Fang

Xiangrong Li

Shuang Li

Dan Hu

Junqi Pang

Yongwei Zhang

Hairong Kou

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

An apparatus and method for real-time in-situ simultaneous measurement of temperature and mechanical parameters can include a charge type vibration sensing module having a temperature compensation function and a temperature/vibration coplanarly-integrated wireless surface acoustic wave (SAW) sensing module are controlled by a processing module in which a full-range temperature-vibration composite parameter compensation decoupling method is implanted, which can detect a vibration signal in a variable temperature environment. Moreover, temperature and vibration multi-parameter testing of static components in a high-temperature, narrow and closed environment can be implemented by arranging the charge type vibration sensing module having a temperature compensation function, and the temperature/vibration coplanarly-integrated wireless SAW sensing module implements health monitoring of moving components in a high-temperature and high-rotation environment.

Apparatus and method for real-time in-situ simultaneous measurement of temperature and mechanical parameters

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

Some embodiments of the disclosure provide an optical fiber Fabry-Perot sensor (), and a manufacturing method thereof. According to an embodiment, the optical fiber Fabry-Perot sensor () includes a hollow tube body (), a first optical fiber (), and a second optical fiber (). The hollow tube body () has a first tube body (), a cavity portion (), and a second tube body () sequentially arranged in an axial direction. The first optical fiber () is provided within the first tube body () in the axial direction and has a first light guide end face () provided within the cavity portion (). The second optical fiber () is provided in the second tube body () in the axial direction and has a second light guide end face () provided within the cavity portion ().

Optical fiber Fabry-Perot sensor, and manufacturing method thereof

Growing community of inventors

Taiyuan, China

Qiulin Tan