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. 11, 2014
Filed:
Jun. 08, 2010
Shunichi Wakamatsu, Sayama, JP;
Tomoya Yorita, Sayama, JP;
Hiroyuki Kukita, Sayama, JP;
Wakako Shinobu, Sayama, JP;
Shunichi Wakamatsu, Sayama, JP;
Tomoya Yorita, Sayama, JP;
Hiroyuki Kukita, Sayama, JP;
Wakako Shinobu, Sayama, JP;
Nihon Dempa Kogyo Co., Ltd., Tokyo, JP;
Abstract
To provide a sensing device having a high processing power and capable of high-accuracy measurement. It is determined whether or not an oscillation frequency is stabilized while a buffer solution is supplied to a quartz-crystal resonator. from a syringe pump. When it is determined that the frequency is stabilized, a second valve. is switched to a sample solution supply mode to supply a sample solution in an injection loop. to the quartz-crystal resonator. An instant at which the sample solution reaches the quartz-crystal resonator. and an instant at which the sample solution finishes passing through the quartz-crystal resonator. are automatically found based on a supply flow rate of the buffer solution, a volume of the injection loop, a volume of a supply channel supplying the sample solution to the quartz-crystal resonator, and an instant at which the second valve. is switched to the sample solution supply mode. An oscillation frequency before the sample solution reaches the quartz-crystal resonator. and an oscillation frequency after the sample solution passes through the quartz-crystal resonator. are found, and a difference between the oscillation frequencies is obtained.