Huazhong University of Science and Technology

State Grid Hubei Electric Power Research Institute

Hong Zhang

Jindong Fei

Tianxu Zhang

Wei Wang

Li Liu

Rui Liu

Xiaobing Dai

Yu Zhang

Wei Luo

Tlanxu Zhang

Kai Zhou

Lei Jin

Xlangyan Liu

Fei Lu

Yalong Tu

The present disclosure provides a degassing membrane tube module and an online gas-in-oil monitoring apparatus for a vacuum on-load tap changer (OLTC). The online gas-in-oil monitoring apparatus includes an online monitoring housing, an oil inlet tube, a gas monitoring device, an oil tank, and an oil diffusing screen, where one end of the oil inlet tube extends through an inner wall at one side of the online monitoring housing; the gas monitoring device is located on a top inner wall of the online monitoring housing; and a front end of the oil inlet tube is provided with the degassing membrane tube module for online preliminary degassing on insulating oil. With the degassing membrane tube module, the online gas-in-oil monitoring apparatus can increase removal rates for gases in the insulating oil within a short time, and can perform degassing on various gases in the insulating oil.

Degassing membrane tube module and online gas-in-oil monitoring apparatus for vacuum on-load tap changer (OLTC)

The present invention discloses a co-aperture broadband infrared optical system, belonging to the field of infrared optical system. The system realizes long wave infrared (LWIR) imaging and broadband infrared spectrum measurement, and solves the problems of limited optical path layout, large volume and high cost of an optical system. The present invention includes a Cassegrain lens, a spectroscope, a reflector, several lens groups, an FPA interface and an optical fiber interface. Light (2 &#x3bc;m&#x2dc;12 &#x3bc;m) is incident to the Cassegrain lens to be focused, then is split by the spectroscope, where 50% of the LWIR light (8 &#x3bc;m&#x2dc;10 &#x3bc;m) passes through the lens group for aberration correction, and the image plane is focused again at the imaging interface. The other 50% of the LWIR light (8 &#x3bc;m&#x2dc;10 &#x3bc;m) and the infrared reflected light (2 &#x3bc;m&#x2dc;8 &#x3bc;m and 10 &#x3bc;m&#x2dc;12 &#x3bc;m) pass through the lens group, and are reflected by the reflector, then focused at the optical fiber interface. The present invention is compact in overall structure and convenient and flexible to use, has relatively low cost, and can be integrated into an image-spectrum associated detection device to implement automatic detection and tracking, which can be widely used in civil and military fields such as environmental monitoring and infrared guidance.

Co-aperture broadband infrared optical system

The invention discloses a detecting device combining images with spectra in an ultra-wide waveband, comprising a scanning rotating mirror, a Cassegrain mirror assembly, three spectroscopes, a reflector, four broadband lens assemblies, a visible and near-infrared lens assembly, a long wave lens assembly, a CCD imaging unit, an FPA imaging unit, a Fourier spectrum measuring unit and a grating spectrum measuring unit. The invention is able to recognize a target accurately by spectrum measurement under the guidance of a preliminary recognition process by imaging in visible, near-infrared and long wave infrared wavebands and can solve the problems of incomplete waveband imaging, restricted optical layout, large device size, and poor ability to detect moving objects and dynamic behaviors in prior art. The invention features small size, high integration and being convenient and flexible to use, and can realize image and spectrum detection of moving objects and dynamic behaviors in an ultra-wide waveband and switch a tracking and recognition process for different targets automatically and therefore can be widely used in national economy and national security.

Detecting device and method combining images with spectrums in ultra-wide waveband

Growing community of inventors

Hubei, China

Hong Zhang