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.

Date of Patent:
Oct. 03, 2017

Filed:

Sep. 02, 2014
Applicant:

Espec Corp., Osaka-shi, Osaka, JP;

Inventor:

Shinichirou Sakami, Osaka, JP;

Assignee:

Espec Corp., Osaka-Shi, Osaka, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N 25/66 (2006.01); G01N 25/12 (2006.01); G01N 25/64 (2006.01); G01N 25/56 (2006.01);
U.S. Cl.
CPC ...
G01N 25/66 (2013.01); G01N 25/56 (2013.01); G01N 25/64 (2013.01);
Abstract

A hygrometer and dew-point instrument is provided that is structurally simple while reducing the workload during maintenance. The hygrometer measures relative humidity of a measurement space, and has a main body that encapsulates a working fluid therein and causes a heat-pipe phenomenon. The main body is disposed across the measurement space and an external space spaced from the measurement space by a heat-insulating part and has a temperature lower than the measurement space. A first temperature deriving part derives the temperature of the main body in a section where the working fluid evaporates. A space temperature detecting unit detects the temperature of the measurement space. A computation unit calculate relative humidity of the measurement space based on the temperature of the main body derived by the first temperature deriving part and the temperature of the measurement space detected by the space temperature detecting unit.


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