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:
Feb. 25, 2020
Filed:
Dec. 27, 2018
Tsinghua University, Beijing, CN;
Xiao-Ping Zheng, Beijing, CN;
Hua Geng, Beijing, CN;
TSINGHUA UNIVERSITY, Beijing, CN;
Abstract
A cesium optical pump detector for buried and abandoned chemical weapons of Japan is provided, comprising a pumping light generation module, a first optical module, a magnetic resonance module, a photoelectric detection module, and a signal processing module. The signal processing module includes an amplifying and filtering unit, a self-oscillation unit, a measuring unit, and a calculating unit connected in sequence. The amplifying and filtering unit comprises a first band-pass filter configured to coarsely measure a frequency of the electrical signal and a second band-pass filter configured to finely measure the frequency of the electrical signal. The self-oscillation unit comprises a first phase shifter connected to the first band-pass filter and a second phase shifter connected to the second band-pass filter. In the present disclosure, the intensity of a magnetic field detected can be finely measured, so that the ACWs can be found efficiently and accurately.