Patents by Inventor Guanhua Feng
Guanhua Feng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11530054Abstract: A spacecraft nutation inhibition method for low-orbit geomagnetic energy storage in-orbit delivery includes: S1, enabling a delivery connection rod to be slidably connected to two mass blocks in a length direction, and adjusting the center of mass of a spacecraft system to pass through a main connecting shaft; S2, respectively measuring, calibrating and adjusting the center of mass and the principal axis of inertia of the delivery connection rod that is to deliver the space target or de-orbit debris; S3, carrying out energy storage delivery; S4, respectively adjusting the center of mass and the moment of inertia of the delivery connection rod after delivering the space target or de-orbit debris; S5, carrying out energy dissipation and unloading; and S6, enabling the spacecraft system to prepare to grab the next space target or de-orbit debris and proceeding to the next delivery work cycle.Type: GrantFiled: June 23, 2020Date of Patent: December 20, 2022Assignees: INSTITUTE OF MECHANICS, CHINESE ACADEMY OF SCIENCES, GUANGDONG ACADEMY OF AEROSPACE RESEARCH IMECH, CASInventors: Wenhao Li, Heng Zhang, Guanhua Feng, Chen Zhang, Lei Yang, Linli Lv
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Patent number: 11482362Abstract: A transfer type contra-rotating geomagnetic energy storage-release delivery system is disclosed. The system includes a control system, a three-axis control moment canceller and an energy system, which are arranged on a delivery mother spacecraft, and the delivery mother spacecraft is connected, through support rod structures, with a strong magnetic moment generating device, a contra-rotating transmission mechanism and two delivery connection rod structures arranged at the two ends of the contra-rotating transmission mechanism, the strong magnetic moment generating device is arranged between the contra-rotating transmission mechanism and the delivery mother spacecraft, the two delivery connection rod structures are provided with slidable mass blocks respectively, and the strong magnetic moment generating device and the contra-rotating transmission mechanism provide energy through the energy system.Type: GrantFiled: June 23, 2020Date of Patent: October 25, 2022Assignees: INSTITUTE OF MECHANICS, CHINESE ACADEMY OF SCIENCES, GUANGDONG ACADEMY OF AEROSPACE RESEARCH IMECH, CASInventors: Wenhao Li, Guanhua Feng, Heng Zhang
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Publication number: 20220306323Abstract: A spacecraft nutation inhibition method for low-orbit geomagnetic energy storage in-orbit delivery includes: S1, enabling a delivery connection rod to be slidably connected to two mass blocks in a length direction, and adjusting the center of mass of a spacecraft system to pass through a main connecting shaft; S2, respectively measuring, calibrating and adjusting the center of mass and the principal axis of inertia of the delivery connection rod that is to deliver the space target or de-orbit debris; S3, carrying out energy storage delivery; S4, respectively adjusting the center of mass and the moment of inertia of the delivery connection rod after delivering the space target or de-orbit debris; S5, carrying out energy dissipation and unloading; and S6, enabling the spacecraft system to prepare to grab the next space target or de-orbit debris and proceeding to the next delivery work cycle.Type: ApplicationFiled: June 23, 2020Publication date: September 29, 2022Applicants: INSTITUTE OF MECHANICS, CHINESE ACADEMY OF SCIENCES, GUANGDONG ACADEMY OF AEROSPACE RESEARCH IMECH, CASInventors: Wenhao LI, Heng ZHANG, Guanhua FENG, Chen ZHANG, Lei YANG, Linli LV
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Publication number: 20220270802Abstract: A transfer type contra-rotating geomagnetic energy storage-release delivery system is disclosed. The system includes a control system, a three-axis control moment canceller and an energy system, which are arranged on a delivery mother spacecraft, and the delivery mother spacecraft is connected, through support rod structures, with a strong magnetic moment generating device, a contra-rotating transmission mechanism and two delivery connection rod structures arranged at the two ends of the contra-rotating transmission mechanism, the strong magnetic moment generating device is arranged between the contra-rotating transmission mechanism and the delivery mother spacecraft, the two delivery connection rod structures are provided with slidable mass blocks respectively, and the strong magnetic moment generating device and the contra-rotating transmission mechanism provide energy through the energy system.Type: ApplicationFiled: June 23, 2020Publication date: August 25, 2022Applicants: INSTITUTE OF MECHANICS, CHINESE ACADEMY OF SCIENCES, GUANGDONG ACADEMY OF AEROSPACE RESEARCH IMECH, CASInventors: Wenhao LI, Guanhua FENG, Heng ZHANG
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Patent number: 7697797Abstract: The present invention is a diaphragm-fiber optic sensor (DFOS), interferometric sensor. This DFOS is based on the principles of Fabry-Perot and Michelson/Mach-Zehnder. The sensor is low cost and is designed with high efficiency, reliability, and Q-point stability, fabricated using MEMS (micro mechanic-electrical system) technology, and has demonstrated excellent performance. A DFOS according to the invention includes a cavity between two surfaces: a diaphragm made of silicon or other material with a rigid body (or boss) at the center and clamped along its edge, and the endface of a single mode optic fiber. By utilizing MEMS technology, the gap width between the diaphragm and the fiber endface is made accurately, ranging from 1 micron to 10 microns.Type: GrantFiled: September 25, 2008Date of Patent: April 13, 2010Assignee: New Jersey Institute of TechnologyInventors: Ken K Chin, Guanhua Feng, Ivan Padron, Harry Roman
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Patent number: 7561277Abstract: The theory, design, fabrication, and characterization of MEMS (micro electrical mechanical system) Fabry-Perot diaphragm-fiber optic microphone are described in the present invention. By using MEMS technology in processing and packaging, a square 1.9 mm×1.9 mm, 2 ? thick SiO2 diaphragm with a 350 ? square embossed center of silicon is mechanically clamped to the ferrule of a single mode fiber to keep its closeness (5 ?) and perpendicular orientation with respect to the diaphragm. Static measurement of optical output power versus the pressure on membrane reveals more than one period of Fabry-Perot interference, thereby generating a Fabry-Perot diaphragm-fiber interferometer device accurately reproducing audible acoustic wave.Type: GrantFiled: May 18, 2007Date of Patent: July 14, 2009Assignee: New Jersey Institute of TechnologyInventors: Ken K. Chin, Guanhua Feng, Harry Roman
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Publication number: 20090086214Abstract: The present invention is a diaphragm-fiber optic sensor (DFOS), interferometric sensor. This DFOS is based on the principles of Fabry-Perot and Michelson/Mach-Zehnder. The sensor is low cost and is designed with high efficiency, reliability, and Q-point stability, fabricated using MEMS (micro mechanic-electrical system) technology, and has demonstrated excellent performance. A DFOS according to the invention includes a cavity between two surfaces: a diaphragm made of silicon or other material with a rigid body (or boss) at the center and clamped along its edge, and the endface of a single mode optic fiber. By utilizing MEMS technology, the gap width between the diaphragm and the fiber endface is made accurately, ranging from 1 micron to 10 microns.Type: ApplicationFiled: September 25, 2008Publication date: April 2, 2009Applicant: New Jersey Institute of TechnologyInventors: Ken K. Chin, Guanhua Feng, Ivan Pardon, Harry Roman
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Publication number: 20090015239Abstract: A system and method in which an overhead high voltage transmission line sensor system is able to measure one or more of temperature, current, and line sag for a conductor within a high voltage transmission line system. The sensor system may be able to clamp to a transmission conductor or splice, harvest power from the transmission line, and/or transmit data corresponding to measurements of current, temperature, and line sag.Type: ApplicationFiled: March 3, 2008Publication date: January 15, 2009Inventors: George E. Georgiou, Ken K. Chin, Raymond Ferraro, Guanhua Feng, Karen Gail Noe
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Publication number: 20080075404Abstract: The present invention is a diaphragm-fiber optic sensor (DFOS), interferometric sensor. This DFOS is based on the principles of Fabry-Perot and Michelson/Mach-Zehnder. The sensor is low cost and is designed with high efficiency, reliability, and Q-point stability, fabricated using MEMS (micro mechanic-electrical system) technology, and has demonstrated excellent performance. A DFOS according to the invention includes a cavity between two surfaces: a diaphragm made of silicon or other material with a rigid body (or boss) at the center and clamped along its edge, and the endface of a single mode optic fiber. By utilizing MEMS technology, the gap width between the diaphragm and the fiber endface is made accurately, ranging from 1 micron to 10 microns.Type: ApplicationFiled: May 18, 2007Publication date: March 27, 2008Applicant: New Jersey Institute of TechnologyInventors: Ken Chin, Guanhua Feng, Ivan Padron, Harry Roman
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Publication number: 20080049230Abstract: The theory, design, fabrication, and characterization of MEMS (micro electrical mechanical system) Fabry-Perot diaphragm-fiber optic microphone are described in the present invention. By using MEMS technology in processing and packaging, a square 1.9 mm×1.9 mm, 2? thick SiO2 diaphragm with a 350? square embossed center of silicon is mechanically clamped to the ferrule of a single mode fiber to keep its closeness (5?) and perpendicular orientation with respect to the diaphragm. Static measurement of optical output power versus the pressure on membrane reveals more than one period of Fabry-Perot interference, thereby generating a Fabry-Perot diaphragm-fiber interferometer device accurately reproducing audible acoustic wave.Type: ApplicationFiled: May 18, 2007Publication date: February 28, 2008Inventors: Ken Chin, Guanhua Feng, Harry Roman