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:
Nov. 26, 2024
Filed:
Mar. 17, 2021
Japan Agency for Marine-earth Science and Technology, Yokosuka, JP;
Taiyo Kobayashi, Yokosuka, JP;
JAPAN AGENCY FOR MARINE-EARTH SCIENCE AND TECHNOLOGY, Yokosuka, JP;
Abstract
A measurement cell for an electric conductivity measuring instrument capable of measuring an electric conductivity. An electric conductivity measuring instrument includes a measurement cell, two electrodes, and a resistance calculation device. The measurement cell has a double cylindrical structure composed of a glass cylindrical cell, through an inside of which seawater as a measurement target passes, and an insulating protective cylindrical cell. The protective cylindrical cell is formed from a material having mechanical properties such that a Young's modulus is in a range of more than 0 and 1.5 GPa or less, and a Poisson's ratio is in a range of 0.49 or more and 0.5 or less, and achieving a systematic error of 0.001 g/kg or less in a salt content in the deep sea at a depth of 3000 m or more.