Odor detection device and odor detection method
AssigneeTaiyo Yuden Co., Ltd.
InventorJunji Oshita
Life of this patent
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Abstract
An odor detection device includes a sensor chamber housing a sensor element, the sensor chamber having a first inlet, a first outlet, a second inlet, and a second outlet, the first and second outlets being located opposite the first and second inlets with the sensor element interposed therebetween, respectively, a flow channel including a filter therein, the flow channel being connected to the second outlet and being connected to the second inlet, a first gas delivery unit causing inflow of a gas at the first inlet and outflow of the gas at the first outlet, and a second gas delivery unit causing outflow of the gas at the second outlet and inflow of the gas at the second inlet.
Claims7
An odor detection device comprising:
- a sensor chamber in which a sensor element is housed, the sensor chamber having a first inlet, a first outlet, a second inlet, and a second outlet, the first outlet being located opposite the first inlet with the sensor element interposed therebetween, the second outlet being located opposite the second inlet with the sensor element interposed therebetween;
- a flow channel including a filter therein, the flow channel being connected to the second outlet and being connected to the second inlet;
- a first gas delivery unit causing inflow of a gas at the first inlet and outflow of the gas at the first outlet;
- and
- a second gas delivery unit causing outflow of the gas at the second outlet and inflow of the gas at the second inlet.
An odor detection method comprising:
- a detection step in which a first gas delivery unit is driven and a second gas delivery unit is stopped to cause a gas to flow from a first inlet into a sensor chamber and cause the gas to be discharged from a first outlet, the sensor chamber housing a sensor element for detecting an odor component;
- and
- a cleaning step in which the first gas delivery unit is stopped and the second gas delivery unit is driven to cause the gas to flow from the sensor chamber into a flow channel through a second outlet and cause the gas from the flow channel to the sensor chamber through a second inlet, the flow channel connecting the second outlet and the second inlet, the flow channel having a filter for removing the odor component therein, the second outlet being provided in the sensor chamber, the second inlet being provided in the sensor chamber.
Dependencies are inferred from the claim text.