IP Library › Granted Patent US 12693280
Granted Patent B2
US 12693280 · App. 18/479,248 · Granted Jul 28, 2026

Device for measuring odor and method for measuring odor using the same

Inventors: Tae Hee Lee (Yongin-si, KR); Dae Un Sung (Incheon, KR)
Assignees: Hyundai Motor Company; Kia Corporation
G01N33/0016G01N33/0073
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Quick Facts
Patent No.
US 12693280
App. No.
18/479,248
Granted
Jul 28, 2026
Kind
B2
Abstract

An embodiment device for measuring an odor includes a prechamber including an inlet and an outlet, a flow guide pipe disposed in the prechamber and connected between the inlet and the outlet in a predetermined pattern to allow air containing the odor to flow therethrough, a first sensor mounted to the inlet that measures a temperature and a humidity of the air entering the flow guide pipe, a second sensor mounted to the outlet that measures the temperature and the humidity of the air discharged from the flow guide pipe, a first temperature/humidity controller mounted to the prechamber that adjusts the temperature and the humidity of the air flowing through the flow guide pipe, an odor sensor chamber connected to the outlet, and an odor sensor mounted in the odor sensor chamber that senses the odor contained in the air discharged from the flow guide pipe.

Claims (49)

1 . A device for measuring an odor, the device comprising:

a prechamber comprising an inlet and an outlet provided in respective end portions thereof;

a flow guide pipe disposed in the prechamber and connected between the inlet and the outlet in a predetermined pattern to allow air containing the odor to flow therethrough;

a first sensor mounted to the inlet, the first sensor being configured to measure a temperature and a humidity of the air entering the flow guide pipe;

a second sensor mounted to the outlet, the second sensor being configured to measure the temperature and the humidity of the air discharged from the flow guide pipe;

a first temperature/humidity controller mounted to the prechamber, the first temperature/humidity controller being configured to adjust the temperature and the humidity of the air flowing through the flow guide pipe, wherein the first temperature/humidity controller comprises:

a first heater mounted to the prechamber, the first heater being configured to heat the air flowing through the flow guide pipe in order to adjust the temperature and the humidity of the air; and

a first cooler mounted to the prechamber, the first cooler being configured to cool the air flowing through the flow guide pipe in order to adjust the temperature and the humidity of the air;

an odor sensor chamber connected to the outlet via a connection pipe; and

an odor sensor mounted in the odor sensor chamber, the odor sensor being configured to sense the odor contained in the air discharged from the flow guide pipe.

2 . The device of claim 1 , further comprising a controller configured to determine a need for a heating operation or a cooling operation of the first temperature/humidity controller based on the temperature and the humidity of the air measured by the first sensor and the temperature and the humidity of the air measured by the second sensor.

3 . The device of claim 2 , wherein the controller is configured to control the first temperature/humidity controller to perform the heating operation in response to a determination that the temperature of the air measured by the first sensor is less than a first reference value or the humidity of the air measured by the first sensor is equal to or greater than a second reference value and to control the first temperature/humidity controller to perform the cooling operation in response to a determination that the temperature of the air measured by the first sensor is equal to or greater than the first reference value or the humidity of the air measured by the first sensor is less than the second reference value.

4 . The device of claim 2 , wherein the controller is configured to control the first temperature/humidity controller to stop the heating operation or the cooling operation in response to a determination that the temperature of the air and the humidity of the air measured by the second sensor have reached respective reference values.

5 . The device of claim 1 , wherein the first temperature/humidity controller comprises a Peltier element mounted to the prechamber to heat or cool the air flowing through the flow guide pipe in order to adjust the temperature and the humidity of the air.

6 . The device of claim 1 , wherein the predetermined pattern of the flow guide pipe connected between the inlet and the outlet is a helical pattern, a zigzag pattern, or a spiral pattern in order to secure a heating time or a cooling time for adjustment of the temperature and the humidity of the air.

7 . The device of claim 1 , wherein:

the flow guide pipe comprises a first flow guide pipe and a second flow guide pipe; and

the first flow guide pipe and the second flow guide pipe are independently connected between the inlet and the outlet in order to secure a heating time or a cooling time for adjustment of the temperature and the humidity of the air.

8 . The device of claim 1 , further comprising a second temperature/humidity controller mounted to the odor sensor chamber, the second temperature/humidity controller being configured to secondarily adjust the temperature and the humidity of the air introduced into the odor sensor chamber in response to a first control signal of a controller.

9 . The device of claim 8 , wherein the controller is configured to control the second temperature/humidity controller to perform a heating operation or a cooling operation in order to secondarily adjust the temperature and the humidity of the air introduced into the odor sensor chamber in response to a determination that the temperature and the humidity of the air measured by the second sensor have not reached respective reference values.

10 . The device of claim 8 , wherein the second temperature/humidity controller comprises:

a second heater mounted to the odor sensor chamber, the second heater being configured to heat the air introduced into the odor sensor chamber in order to adjust the temperature and the humidity of the air in response to a second control signal of the controller; and

a second cooler mounted to the odor sensor chamber, the second cooler being configured to cool the air introduced into the odor sensor chamber in order to adjust the temperature and the humidity of the air in response to a third control signal of the controller.

11 . The device of claim 1 , wherein the odor sensor chamber comprises a first odor sensor chamber and a second odor sensor chamber that are independently connected to the outlet via branch pipes.

12 . A method of measuring an odor, the method comprising:

causing air containing the odor to flow to a flow guide pipe connected between an inlet and an outlet of a prechamber;

measuring, by a first sensor mounted to the inlet and a second sensor mounted to the outlet, a temperature and a humidity of the air;

controlling, by a controller, a first temperature/humidity controller mounted to the prechamber to perform a heating operation or a cooling operation based on the temperature and the humidity of the air measured by each of the first sensor and the second sensor;

adjusting the temperature and the humidity of the air flowing through the flow guide pipe to reference values through the heating operation or the cooling operation of the first temperature/humidity controller, wherein the first temperature/humidity controller comprises:

a first heater mounted to the prechamber, the first heater being configured to heat the air flowing through the flow guide pipe in order to adjust the temperature and the humidity of the air; and

a first cooler mounted to the prechamber, the first cooler being configured to cool the air flowing through the flow guide pipe in order to adjust the temperature and the humidity of the air;

supplying the air adjusted in the temperature and the humidity to an interior of an odor sensor chamber connected to the outlet; and

sensing, by an odor sensor mounted in the odor sensor chamber, the odor contained in the air introduced into the odor sensor chamber.

13 . The method of claim 12 , wherein the controller controls the first temperature/humidity controller to perform the heating operation in response to a determination that the temperature of the air measured by the first sensor is less than a first reference value or the humidity of the air measured by the first sensor is equal to or greater than a second reference value.

14 . The method of claim 12 , wherein the controller controls the first temperature/humidity controller to perform the cooling operation in response to a determination that the temperature of the air measured by the first sensor is equal to or greater than a first reference value or the humidity of the air measured by the first sensor is less than a second reference value.

15 . The method of claim 12 , further comprising controlling the first temperature/humidity controller to stop the heating operation or the cooling operation in response to a determination that the temperature and the humidity of the air measured by the second sensor have reached respective reference values.

16 . The method of claim 12 , further comprising controlling a second temperature/humidity controller mounted to the odor sensor chamber to perform the heating operation or the cooling operation in order to secondarily adjust the temperature and the humidity of the air introduced into the odor sensor chamber in response to a determination that the temperature and the humidity of the air measured by the second sensor have not reached respective reference values.

17 . The method of claim 12 , wherein the flow guide pipe is connected between the inlet and the outlet in a helical pattern, a zigzag pattern, or a spiral pattern in order to secure a heating time or a cooling time for adjustment of the temperature and the humidity of the air flowing through the flow guide pipe.

18 . The method of claim 12 , wherein the first temperature/humidity controller comprises a Peltier element mounted to the prechamber, the Peltier element performing the heating operation by emitting heat to increase the temperature of the air in the flow guide pipe and lower the humidity thereof, and performing the cooling operation by absorbing heat to lower the temperature of the air in the flow guide pipe and increase the humidity thereof.

19 . The method of claim 12 , wherein supplying the air adjusted in the temperature and the humidity comprises supplying the air to a first odor sensor chamber and a second odor sensor chamber that are independently connected to the outlet via branch pipes, and wherein sensing the odor comprises sensing, by respective odor sensors mounted in the first odor sensor chamber and the second odor sensor chamber, the odor contained in the air introduced into each of the first odor sensor chamber and the second odor sensor chamber.

20 . A device for measuring an odor, the device comprising:

a prechamber comprising an inlet and an outlet provided in respective end portions thereof;

a flow guide pipe disposed in the prechamber and connected between the inlet and the outlet in a predetermined pattern to allow air containing the odor to flow therethrough;

a first sensor mounted to the inlet, the first sensor being configured to measure a temperature and a humidity of the air entering the flow guide pipe;

a second sensor mounted to the outlet, the second sensor being configured to measure the temperature and the humidity of the air discharged from the flow guide pipe;

a first temperature/humidity controller mounted to the prechamber, the first temperature/humidity controller being configured to adjust the temperature and the humidity of the air flowing through the flow guide pipe;

an odor sensor chamber connected to the outlet via a connection pipe; and

an odor sensor mounted in the odor sensor chamber, the odor sensor being configured to sense the odor contained in the air discharged from the flow guide pipe,

wherein the predetermined pattern of the flow guide pipe connected between the inlet and the outlet is a helical pattern, a zigzag pattern, or a spiral pattern in order to secure a heating time or a cooling time for adjustment of the temperature and the humidity of the air.