In an example of a selective, real-time gas sensing method, a gas sample, potentially including a specific gas molecule to be sensed, is supplied to an interface between a working electrode and an ionic liquid electrolyte. Based on at least one unique electrochemical reaction of the specific gas molecule to be sensed, a driving force is implemented to initiate a series of reactions involving the specific gas molecule. In response to the implementation of the driving force, a signal indicative of the specific gas molecule is monitored for.

In an example of a selective, real-time gas sensing method, a gas sample, potentially including a specific gas molecule to be sensed, is supplied to an interface between a working electrode and an ionic liquid electrolyte. Based on at least one unique electrochemical reaction of the specific gas molecule to be sensed, a driving force is implemented to initiate a series of reactions involving the specific gas molecule. In response to the implementation of the driving force, a signal indicative of the specific gas molecule is monitored for.

A gas detection device includes a housing, a top disk, an electrochemical sensor, a gasket, and an electrically resistive material, the top disk, electrochemical sensor, gasket and electrically resistive material are located in the housing and the electrically resistive material is located between the housing and the gasket, between the gasket and the top disk, or dispersed through the gasket.

A ceramic heater is provided in an electronic component, and by supplying electrical current thereto, a heat generating portion thereof is heated to a temperature of greater than or equal to 700[° C.] and less than 950[° C.]. An energizing current waveform of the electrical current to the heat generating portion is a pulse waveform, and a product of a pulse voltage Vp [V] and a period T [ms] of the pulse waveform is less than or equal to 600 [V.Math.ms].

A ceramic heater is provided in an electronic component, and by supplying electrical current thereto, a heat generating portion thereof is heated to a temperature of greater than or equal to 700[° C.] and less than 950[° C.]. An energizing current waveform of the electrical current to the heat generating portion is a pulse waveform, and a product of a pulse voltage Vp [V] and a period T [ms] of the pulse waveform is less than or equal to 600 [V.Math.ms].

A gas sensor is provided with a housing provided with a locking step part formed on an inner peripheral surface thereof; a sensor body provided with a locked flange part locked to the locking step part from a base end side thereof and supported inside the housing; a sealing member filled into a filling part between the inner peripheral surface of the housing and an outer peripheral surface of the sensor body in a base end side of the locked flange part; and an insulation member provided between the inner peripheral surface of the housing and the outer peripheral surface of the sensor body in a base end side of the sealing member. The filling part includes an annular groove protruding in an outer peripheral side.

A sensor element for detecting a specific gas concentration in a measurement-object gas, the sensor element includes; an elongate element body that includes a solid electrolyte layer and has a shape including at least one side surface extending in a longitudinal direction; a dense layer that is disposed on the side surface; and an intermediate layer disposed at least between the dense layer and the element body, wherein, when thermal expansion coefficients of the solid electrolyte layer, the dense layer, and the intermediate layer in a temperature range of from 20° C. to 1360° C. are denoted by thermal expansion coefficients Ea, Eb, and Ec, respectively, a ratio Ea/Eb is more than 1.0 and 5.0 or less, and Ea>Ec>Eb is satisfied.

Proposed is a gas sensing device. The gas sensing device includes a housing including an opening part through which a target gas to be sensed enters an inner space thereof, a sensor unit disposed in the inner space of the housing, and a connection passage connecting a first opening and a second opening that are formed in the housing such that the first opening and the second opening are open toward the inner space of the housing. According to the present disclosure, there is an effect that the gas sensing device capable of measuring a concentration of a gas with a high response speed and a high accuracy may be provided even if a pressure of a space inside the housing where the sensor unit is disposed increases.

Proposed is a gas sensing device. The gas sensing device includes a housing including an opening part through which a target gas to be sensed enters an inner space thereof, a sensor unit disposed in the inner space of the housing, and a connection passage connecting a first opening and a second opening that are formed in the housing such that the first opening and the second opening are open toward the inner space of the housing. According to the present disclosure, there is an effect that the gas sensing device capable of measuring a concentration of a gas with a high response speed and a high accuracy may be provided even if a pressure of a space inside the housing where the sensor unit is disposed increases.

The invention relates to a solid electrolyte including partially stabilized zirconia, a producing method thereof, and a gas sensor including a solid electrolyte. The partially stabilized zirconia includes crystal particles, the crystal particles include mixed phase particles each having a high-concentration phase and a low-concentration phase, the high-concentration phase being defined such that a concentration of the stabilizer is 4.7 mol % or more, the low-concentration phase being defined as a concentration of the stabilizer is less than 4.7 mol %.