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. 26, 2021
Filed:
May. 13, 2019
Nihon Dempa Kogyo Co., Ltd., Tokyo, JP;
Japan Aerospace Exploration Agency, Tokyo, JP;
Hiroyuki Kukita, Hokkaido, JP;
Shunichi Wakamatsu, Hokkaido, JP;
Tsuyoshi Shiobara, Hokkaido, JP;
Takayuki Ishikawa, Saitama, JP;
Eiji Miyazaki, Tokyo, JP;
Yuta Tsuchiya, Tokyo, JP;
NIHON DEMPA KOGYO CO., LTD., Tokyo, JP;
JAPAN AEROSPACE EXPLORATION AGENCY, Tokyo, JP;
Abstract
A substance detection system and a substance detection method are provided. The temperature identifying portion identifies a surface temperature of the quartz substrate, based on a difference between a deviation of the fundamental wave frequency from at least any predetermined reference fundamental wave frequency of the reference crystal resonator and the detecting crystal resonator and a deviation of the third harmonic frequency from a predetermined reference third harmonic frequency. The substance identifying portion identifies a temperature at which a contaminant attached to the detecting crystal resonator is desorbed from the detecting crystal resonator to identify the contaminant based on the temperature at which the contaminant is desorbed. The temperature is identified based on a difference between the fundamental wave frequency of the reference crystal resonator and the fundamental wave frequency of the detecting crystal resonator measured by the frequency measuring portion and the temperature identified by the temperature identifying portion.