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US 12,281,977 B2Granted
Gas measurement device having variable volume
AssigneesSintokogio, Ltd., National University Corporation Toyohashi University of Technology
InventorsYoshihisa Suzuki, Toshihiko Noda, Kazuaki Sawada
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Abstract
The gas measurement device includes a gas sensor disposed in a gas chamber, a filter configured to control passing gas molecules to the gas chamber, and a driving unit configured to move at least a part of a member defining the gas chamber.
Claims7
A gas measurement device comprising:
- a gas sensor disposed in a gas chamber;
- a filter configured to control passing gas molecules to the gas chamber;
- and
- a driving unit configured to move at least a part of a member defining the gas chamber,
- wherein the member that defines the gas chamber includes:
- an upper portion defining a top surface of the gas chamber and including the filter;
- a bottom portion defining a bottom surface of the gas chamber and in which the gas sensor is disposed;
- a side wall defining a side surface of the gas chamber and sandwiched between the upper portion and the bottom portion;
- and
- a movable portion that defines a side surface of the gas chamber together with the side wall and is connected to the upper portion, the bottom portion, and the side wall, and
- wherein the at least the part of a member that defines the gas chamber and is moved by the driving unit is the movable portion, and
- wherein the driving unit moves the movable portion along the top surface, the bottom surface, and the side wall.
9 more elements
Dependencies are inferred from the claim text.