Odor measuring device and odor measuring method
An odor measuring device includes a sensor chamber that stores a sensor detecting an odor substance and has a first inlet and a first outlet, a treatment chamber that stores a measurement object and has a second inlet and a second outlet, a first flow path that connects the first outlet and the second inlet, a second flow path that connects the second outlet and the first inlet, a supplier that circulates a gas between the sensor chamber and the treatment chamber through the first flow path and the second flow path, and a measurer that acquires a detected value from the sensor and measures an odor based on the detected value.
1 . An odor measuring device comprising:
a sensor chamber that stores a sensor detecting an odor substance and has a first inlet and a first outlet;
a treatment chamber that stores a measurement object and has a second inlet and a second outlet;
a first flow path that connects the first outlet and the second inlet;
a second flow path that connects the second outlet and the first inlet;
a supplier that circulates a gas between the sensor chamber and the treatment chamber through the first flow path and the second flow path; and
a measurer that acquires a detected value from the sensor and measures an odor based on the detected value.
2 . The odor measuring device according to claim 1 , wherein
the treatment chamber includes a desorption treatment chamber having the second outlet and storing the measurement object, and a gas treatment chamber having the second inlet and communicating with the desorption treatment chamber through an opening.
3 . The odor measuring device according to claim 2 , wherein
the desorption treatment chamber has a lower surface provided with the opening and an upper surface facing the lower surface, and includes a pressing portion projecting from the upper surface toward the lower surface and pressing the measurement object together with the lower surface.
4 . The odor measuring device according to claim 3 , wherein
the desorption treatment chamber further includes a side wall portion projecting from the upper surface toward the lower surface and pressing a peripheral edge portion of the measurement object together with the lower surface.
5 . The odor measuring device according to claim 2 , further comprising:
a heating body heating the measurement object.
6 . The odor measuring device according to claim 5 , wherein
the heating body is disposed around the opening.
7 . The odor measuring device according to claim 5 , wherein
the heating body is disposed in the gas treatment chamber.
8 . The odor measuring device according to claim 5 , wherein
the heating element is disposed in the desorption treatment chamber.
9 . The odor measuring device according to claim 1 , wherein
the sensor includes a plurality of odor sensors having different detection sensitivities according to odor substances, and
the measurer determines odors based on detected values of the plurality of odor sensors.
10 . The odor measuring device according to claim 1 , wherein
the treatment chamber includes:
a desorption treatment chamber that has a space defined by an upper surface, a lower surface, and side surfaces connecting the upper surface and the lower surface, and is capable of disposing a sheet-shaped body on the lower surface;
a plurality of openings that are provided on the lower surface of the desorption treatment chamber and are covered with the sheet-shaped body;
a plurality of wall-shaped bodies that are provided from the upper surface toward the lower surface and press the sheet-shaped body; and
an outlet that transports a gas passed through the opening and the sheet-shaped body to an outside.
11 . The odor measuring device according to claim 1 , wherein
the treatment chamber includes:
a desorption treatment chamber that has a space defined by an upper surface, a lower surface, and side surfaces connecting the upper surface and the lower surface, and is capable of disposing a sheet-shaped body on the lower surface;
a plurality of slit-shaped openings that are provided on the lower surface of the desorption treatment chamber, are covered with the sheet-shaped body, and extend in parallel,
a plurality of wall-shaped bodies that are provided from the upper surface toward the lower surface, press the sheet-shaped body, and intersect the openings; and
an outlet that transports a gas passed through the openings and the sheet-shaped body to an outside.
12 . The odor measuring device according to claim 1 , wherein
the treatment chamber includes:
a desorption treatment chamber that has a space defined by an upper surface, a lower surface, and side surfaces connecting the upper surface and the lower surface, and is capable of disposing a sheet-shaped body on the lower surface;
a plurality of slit-shaped openings that are provided on the lower surface of the desorption treatment chamber, are covered with the sheet-shaped body, and extend in parallel,
a plurality of wall-shaped bodies that are provided from the upper surface toward the lower surface, press the sheet-shaped body, and intersect the openings;
a sheet-shaped heating body that is provided on a back side of the openings or on a front side of the openings; and
an outlet that transports a gas passed through the openings and the sheet-shaped body to an outside.
13 . The odor measuring device according to claim 12 , wherein
the heating body is composed of a Peltier element.
14 . An odor measuring device comprising:
a sensor chamber that stores a sensor detecting an odor substance and has a first inlet and a first outlet;
a treatment chamber that includes a desorption treatment chamber having a second outlet and storing a measurement object, and a gas treatment chamber having a second inlet and communicating with the desorption treatment chamber through an opening, wherein the desorption treatment chamber has a lower surface provided with the opening and an upper surface facing the lower surface, and includes a pressing portion projecting from the upper surface toward the lower surface and pressing the measurement object together with the lower surface;
a flow path that connects the second outlet and the first inlet;
a supplier that delivers a gas in the treatment chamber to the sensor chamber through the flow path; and
a measurer that acquires a detected value from the sensor and measures an odor based on the detected value.
15 . An odor measuring method executed by an odor measuring device that includes a sensor chamber that stores a sensor detecting an odor substance and has a first inlet and a first outlet, a treatment chamber that has a second inlet and a second outlet, a first flow path that connects the first outlet and the second inlet, a second flow path that connects the second outlet and the first inlet, and a supplier that circulates a gas between the sensor chamber and the treatment chamber through the first flow path and the second flow path, the odor measuring method comprising:
storing a measurement object in the treatment chamber;
circulating the gas between the sensor chamber and the treatment chamber by the supplier; and
measuring an odor based on a detected value acquired from the sensor.