摘要:
A heat sensor (1) includes: a housing (10) of a cylindrical shape having a bottom part (11); and a heat detection unit (30) configured to detect heat of gas, wherein the housing (10) has a first hole (21) and a second hole (22) from one side of which gas flows in and from another side of which the gas flows out. The heat detection unit (30) is arranged in a peripheral region (10b) different from a center (10a) of the housing (10) when the heat sensor (1) is viewed from a central axis (J1) of the housing (10).
摘要:
An electrochemical gas sensor according to one embodiment of the present invention comprises an electrolyte film, a working electrode disposed so as to touch the electrolyte film, a counter electrode disposed so as to touch the electrolyte film and not touch the working electrode, and an insulating substrate that is disposed so as to face the electrolyte film and has a through hole formed therein. A metal layer is formed on the surface of the insulating substrate facing the electrolyte film. The working electrode comprises a first layer that touches the electrolyte film and a second layer that is formed over at least a portion of the metal layer and touches the first layer.
摘要:
An object of the present disclosure is to contribute to downsizing. A sensor (1) includes a board (2), a heat sensitive element (30), and a housing (5). The housing (5) houses the board (2). The housing (5) has a flow channel (6) provided in an internal space (SP1) thereof and allowing a gas to flow therethrough, and an opening (7) connecting the flow channel (6) to an external space (SP2) outside of the housing (5). The heat sensitive element (30) is implemented as a chip thermistor mounted on the board (2) and detecting heat of the gas that has flowed in through the opening (7).
摘要:
A heat sensor (1) includes: a housing (10) of a cylindrical shape which has a bottom part (11) and a side part (12); and a heat detection unit (30) provided in the housing (10) and configured to be detect heat, wherein the housing (10) has a first hole (21) and a second hole (22) from one side of which gas flows in and from another side of which the gas flows out, the first hole (21) is provided in at least one of the bottom part (11) and the side part (12), the second hole (22) is provided in at least one of the bottom part (11) and the side part (12), and when the heat sensor (1) is viewed from a central axis (J1) of the housing (10), each of the first hole (21) and the second hole (22) is provided in a peripheral region (10b) different from a center (10a) of the housing (10), and the heat detection unit (30) is provided in the peripheral region (10b) when the heat senor (1) is viewed from a central axis (J1) of the housing (10).
摘要:
A smoke detector is provided which has a reduced size while a detection space is relatively widely secured. A smoke detector (1) includes a wall structure (3), a light emitting element (4), and a light receiving element (5). The wall structure (3) surrounds a detection space (Spl) when viewed from one direction orthogonal to an upper surface (731) of a bottom plate (73). The light emitting element (4) has a light emission surface (41) and is configured to emit light from the light emission surface (41) toward the detection space (Spl). The light receiving element (5) is disposed at a location where the light receiving element (5) is free from incidence of direct light from the light emitting element (4) and scattered light by smoke in the detection space (Spl) is incident on the light receiving element (5). The wall structure (3) has an inner side surface (31) facing the detection space (Spl) and an outer side surface (32) facing away from the detection space (Spl) on opposing sides in a thickness direction of the wall structure (3).The wall structure (3) is configured to allow the smoke to pass therethrough and suppress light transmission in the thickness direction. The light emitting element (4) is disposed between the inner side surface (31) and the outer side surface (32) with the light emission surface (41) facing the inner side surface (31).
摘要:
The present disclosure provides a human body detecting device capable of increasing the sensitivity. Multiple first infrared ray reception paths (71) are defined by any one of multiple lenses (30) and multiple detecting units (24). Multiple second infrared ray reception paths (72) are defined by one lens (30) adjacent to the any one of multiple lenses (30) and multiple detecting units (24). Lens array (3) is configured so that one of multiple first infrared ray reception paths (71) and one of multiple second infrared ray reception paths (72) overlap with each other. The front-side electrodes of detecting units respectively corresponding to one first infrared ray reception path (71) and one second infrared ray reception path (72) of the multiple detecting units have the same polarity.
摘要:
An object of the present disclosure is to reduce the chance that erroneous detection occurs. A sensor 1 includes a smoke detection chamber 4, an opening 510 and a dividing portion Z1. The smoke detection chamber 4 has an inlet port 40 through which smoke flows into the smoke detection chamber 4. The opening 510 connects an external space SP2 and a space SP1 surrounding the smoke detection chamber 4. The dividing portion Z1 divides the gas flow channel 6 such that a first ratio is made higher than a second ratio. The first ratio is a ratio of an amount of smoke reaching the inlet port 40 with respect to a first inflow of smoke flowing into the gas flow channel 6 through the opening 510. The second ratio is a ratio of an amount of steam reaching the inlet port 40 with respect to a second inflow of steam flowing into the gas flow channel 6 through the opening 510.
摘要:
A smoke detection system, a smoke detection method, and a program are provided which are configured to suppress steam from being erroneously detected as smoke. A smoke detection system (200) is configured to detect smoke. The smoke detection system (200) includes an estimation unit (235). The estimation unit (235) is configured to estimate a state of a gas based on a change temperature which is a temporal change of a temperature of the gas.