North University of China

Wenyi Liu

Jijun Xiong

Qiulin Tan

Pinggang Jia

Lei Zhang

Helei Dong

Yingping Hong

Guocheng Fang

Ting Liang

Qianyu Ren

Junqi Pang

Guowen An

Hua Ren

Jia Liu

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

Some embodiments of the disclosure provide a demodulation system for obtaining phase change parameters by a fiber-optic Fabry Perot sensor. In an embodiment, the demodulation system includes a transmitting module, a fiber-optic Fabry Perot sensor, a light splitting module, a filter module, a receiving module, and a processing module. The transmitting module transmits a beam with a predetermined wavelength range. The fiber-optic Fabry Perot sensor receives the beam and forms a reflected light beam. The light splitting module is arranged between the transmitting module and the fiber-optic Fabry Perot sensor. The filter module obtains the first light beam, the second light beam, and the third light beam. The filter module has a broadband filter. The receiving module receives the first light beam, the second light beam, and the third light beam and converts them into the first signal, the second signal, and the third signal.

Demodulation system and demodulation method of fiber-optic sensor for obtaining phase change parameters

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

Shanxi, China

Wenyi Liu