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:
Oct. 27, 2020
Filed:
Jan. 02, 2019
China University of Petroleum—beijing, Beijing, CN;
CHINA UNIVERSITY OF PETROLEUM-BEIJING, Beijing, CN;
Abstract
Provided is a radio frequency antenna receiving method and device for a downhole three-dimensional scanning nuclear magnetic resonance imager. The device comprises: an array antenna for receiving an echo signal, an antenna interface circuit, a receiving and amplifying circuit for amplifying the echo signal, an analog-to-digital conversion circuit, a signal collecting circuit and a control circuit, which are sequentially connected; the array antenna comprises N antenna units, where N≥4; four ports of the control circuit are respectively connected to the antenna interface circuit, the receiving and amplifying circuit, the analog-to-digital conversion circuit and the signal collecting circuit so as to control them, and the control circuit is connected to a logging ground acquisition system; the antenna interface circuit selects one antenna unit in the array antenna. The method and device of the present invention can perform signal detection in a circumferentially multi-directional sensitive region.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile