| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas detection device capable of reducing the temperature difference between a first detection element and a second detection element.SOLUTION: A gas detection device comprises: a gas detection unit 3 including a first substrate 4, a first detection element 1 supported on the first substrate 4 and outputting a first signal according to a detected gas concentration, and a first heater heating the first detection element 1; a temperature detection unit 5 including a third substrate 6, and a second detection element 40 supported on the third substrate 6 and outputting a second signal according to an ambient temperature; and a heater control unit 7 controlling the first heater arranged on a second substrate 9 supporting the first and third substrates. The gas detection unit 3 and the temperature detection unit 5 are respectively arranged on a second straight line with the intersection of the first straight line orthogonal to one side of the heater control unit 7 and a second straight line approximately parallel to the one side sandwiched therebetween.SELECTED DRAWING: Figure 1 |
