The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 30, 2024
Filed:
Apr. 25, 2021
Hangzhou Henuova Technology Co., Ltd., Hangzhou, CN;
Yuewu Zhang, Hangzhou, CN;
Jianxi Liu, Hangzhou, CN;
Yanxing Bao, Hangzhou, CN;
Weihua Zha, Hangzhou, CN;
Qianyi Zhang, Hangzhou, CN;
Dongbing Liu, Hangzhou, CN;
Weixing Yang, Hangzhou, CN;
Xu Han, Hangzhou, CN;
Miaoye Li, Hangzhou, CN;
Zirui Wang, Hangzhou, CN;
Junliang Liu, Hangzhou, CN;
Jie Luo, Hangzhou, CN;
Weitao Shen, Hangzhou, CN;
Yu Fu, Hangzhou, CN;
Han Gao, Hangzhou, CN;
HANGZHOU HENUOVA TECHNOLOGY CO., LTD., Hangzhou, CN;
Abstract
A device and a method for nondestructively detecting a transient characteristic of a conductive screw of a turbo-generator rotor are provided. The device includes a personal computer (PC), an extremely-steep pulse generator, an ultra-high-frequency double-isolation transformer, and a pulse emitting and coupling module, which are connected in sequence. The pulse emitting and coupling module is connected to a load. A synchronous pulse receiving non-inductive divider circuit synchronously receives a characteristic waveform from the load, and the synchronous pulse receiving non-inductive divider circuit is connected to an ultra-high-speed analog/digital (A/D) module through a nonlinear saturation amplifying circuit that amplifies a signal. The PC receives a signal from the ultra-high-speed A/D module. The load includes a positive or negative excitation lead loop that is in a 180° symmetrical and instantaneous short-circuit state and a rotor shaft. The device detects state of the conductive screw in a blind area of electromagnetic wave test.