Abstract: Provided are: a gas sensor which is able to have improved gas detection performance, while being capable of suppressing variation in the output characteristics among individual gas sensors; a gas detection device; a gas detection method; and a device which is provided with a gas sensor or a gas detection device. This gas detection device (10) is provided with: a heat sensitive resistive element (2); a lead part (22b) which is connected to the heat sensitive resistive element (2) by welding, while having no material being interposed therebetween; a gas sensor (1) which is thermally coupled to the heat sensitive resistive element (2), while comprising a porous gas molecule adsorption material (3) from which specific gas molecules are desorbed by means of heating; and an electric power supply unit which supplies electric power to the heat sensitive resistive element (2), thereby heating the heat sensitive resistive element (2).

Abstract: Provided are a gas detection device, a gas detection method, and a device including the gas detection device that are capable of enhancing responsiveness, gas detection sensitivity, and gas detection accuracy. A gas detection device (10) with a thermal-conductivity-type gas sensor (1) includes a connection circuit including a thermistor (2) having at least a pair of electrode parts (22a) and a resistor (11) connected to the thermistor (2); a power supply circuit (Ep) for applying a constant voltage to the connection circuit and putting the thermistor (2) in a thermal runaway state by supplying excess power to the thermistor (2); and a voltage detection unit for detecting a voltage between the electrodes of the thermistor (2) in the connection circuit.

Abstract: Provided are a gas sensor, a gas detection device, a gas detection method and a device provided with the gas detection device, capable of improving gas detection performance. The gas detection device is provided with a gas sensor comprising a thermosensitive resistance element and a porous gas molecule adsorptive material thermally bonded to the thermosensitive resistance element that releases specified gas molecules due to heating and cooling, and a power supply control unit that heats and cools the thermosensitive resistance element by controlling the supply of power thereto. The gas detection method comprises a heating step for putting the porous gas molecule adsorptive material in a heated state and a detecting step for detecting a specific gas due to the temperature change in the thermosensitive resistance element by heating.

Abstract: Provided are a thin and insulating temperature sensor which is heat resistant and can have improved reliability, responsiveness, and temperature measurement accuracy, and a device equipped with the temperature sensor, the temperature sensor being provided with: a heat sensitive element which has an insulating substrate, a heat sensitive film formed on the insulating substrate, and electrode layers formed on the insulating substrate and electrically connected to the heat sensitive film; a lead member having joint parts electrically connected to the electrode layers by being joined thereto by means of welding, and lead parts integrally extending from the joint parts; and a pair of insulating films which sandwich and seal at least the heat sensitive element and the joint parts of the lead member from both sides.

Abstract: Provided are: a gas sensor which is able to have improved gas detection performance, while being capable of suppressing variation in the output characteristics among individual gas sensors; a gas detection device; a gas detection method; and a device which is provided with a gas sensor or a gas detection device. This gas detection device (10) is provided with: a heat sensitive resistive element (2); a lead part (22b) which is connected to the heat sensitive resistive element (2) by welding, while having no material being interposed therebetween; a gas sensor (1) which is thermally coupled to the heat sensitive resistive element (2), while comprising a porous gas molecule adsorption material (3) from which specific gas molecules are desorbed by means of heating; and an electric power supply unit which supplies electric power to the heat sensitive resistive element (2), thereby heating the heat sensitive resistive element (2).

Abstract: Provided are a gas sensor, a gas detection device, a gas detection method and a device provided with the gas detection device, capable of improving gas detection performance. The gas detection device is provided with a gas sensor comprising a thermosensitive resistance element and a porous gas molecule adsorptive material thermally bonded to the thermosensitive resistance element that releases specified gas molecules due to heating and cooling, and a power supply control unit that heats and cools the thermosensitive resistance element by controlling the supply of power thereto. The gas detection method comprises a heating step for putting the porous gas molecule adsorptive material in a heated state and a detecting step for detecting a specific gas due to the temperature change in the thermosensitive resistance element by heating.

Abstract: Provided are: an infrared temperature sensor which is reduced in film deformation and achieves higher accuracy, while ensuring reliability; and a device which uses this infrared temperature sensor. An infrared temperature sensor is provided with: a film which absorbs infrared light; a case which covers and holds the film so as to form airtight spaces between itself and the film, and which is provided with a light guide part that has an opening and guides infrared light and a shielding part that has a shielding wall and shields infrared light; ventilation portion which allow air permeation between the spaces and the outside; a heat-sensitive element for infrared detection, which is arranged on the film at a position that corresponds to the light guide part; and a heat-sensitive element for temperature compensation, which is arranged on the film at a position that corresponds to the shielding part.

Abstract: Provided are: an infrared temperature sensor which is reduced in film deformation and achieves higher accuracy, while ensuring reliability; and a device which uses this infrared temperature sensor. An infrared temperature sensor is provided with: a film which absorbs infrared light; a case which covers and holds the film so as to form airtight spaces between itself and the film, and which is provided with a light guide part that has an opening and guides infrared light and a shielding part that has a shielding wall and shields infrared light; ventilation portion which allow air permeation between the spaces and the outside; a heat-sensitive element for infrared detection, which is arranged on the film at a position that corresponds to the light guide part; and a heat-sensitive element for temperature compensation, which is arranged on the film at a position that corresponds to the shielding part.

Abstract: A contact-type infrared temperature sensor 1 for high temperature measurement is provided with: a heat-resistant cylindrical member 2, having a cylindrical shape with one end as a closed section 21 and the other end as an open section 22; an infrared temperature detecting member 4, disposed facing and spaced from the closed section 21, and including no infrared filter; and an optical function section 33, having an infrared light inlet 31 disposed facing and spaced from the closed section 21 by a predetermined dimension, restricting infrared light radiated from the region spaced between the temperature-sensitive section and the infrared light inlet by the predetermined dimension to a range of the region by the infrared light inlet 31 and guiding the infrared light to the infrared temperature detecting member 4.

Abstract: A contact-type infrared temperature sensor 1 for high temperature measurement is provided with: a heat-resistant cylindrical member 2, having a cylindrical shape with one end as a closed section 21 and the other end as an open section 22; an infrared temperature detecting member 4, disposed facing and spaced from the closed section 21, and including no infrared filter; and an optical function section 33, having an infrared light inlet 31 disposed facing and spaced from the closed section 21 by a predetermined dimension, restricting infrared light radiated from the region spaced between the temperature-sensitive section and the infrared light inlet by the predetermined dimension to a range of the region by the infrared light inlet 31 and guiding the infrared light to the infrared temperature detecting member 4.

Abstract: A non-contact temperature sensor includes a holder 10 having a cavity 12 with a light conducting portion 11 for conducting the infrared ray incident from an opening 10a at the one end and a closed-end cavity 13 with the one end closed which is arranged adjacently to the cavity 12; a resin film 20 arranged on the side of an opening 10b at the other end of the light conducting portion 11 of the holder 10 and an opening 10c of the closed end cavity 13; a space 50a formed behind the resin film 20; an infrared ray detecting heat-sensitive element 30a arranged on the resin film 20 located at the opening at the other end of the light conducting portion 11; a temperature compensating heat-sensitive element 30b arranged on the resin film 20 located at the opening 10c of the closed end cavity 13; and a cover member 50 for sealing the resin film 20 and forming the space 50a.

Abstract: A non-contact temperature sensor includes a holder serving as a light conducting portion for guiding infrared rays incident from a first opening at its one end; a plastic film arranged at a second opening of the other end of tile light conducting portion; a cover for sealing the second opening at the other end of the holder so as to provide a space between itself and the plastic film, an infrared ray detection heat-sensitive element arranged on the side of the space of the plastic film, for detecting the infrared rays incident from the first opening; and a temperature compensating heat-sensitive means arranged in the vicinity of the holder, for detecting the temperature of the holder. In this configuration, the surface temperature of the body-to-be-detected can be precisely detected in a short time.

Abstract: A frost deposition detecting device is provided. This frost deposition detecting device comprises: a base member 1; a heat-conductive container 4 including a frosting portion provided to the base member 1; a thermally sensitive element 6' for detecting the temperature of the base member 1; a protection pipe 8 inserted into the base member 1 and disposed in the cavity formed inside the heat-conductive container; a heat insulator integrally formed with the protection pipe 8 to reduce heat conduction to the protection pipe 8; and another thermally sensitive element 6 secured in the protection pipe 8. With such frost deposition detecting device, highly accurate frost detecting performance and excellent durability in terms of water resistance and humidity resistance can be achieved.

Abstract: A frost detecting device including a frost detector which detects the amount of frost from the temperature difference between a detecting thermal sensitive element and a compensating thermal sensitive element is provided. The frost detecting device includes: a frost detector 1 made up of a detecting thermal sensitive element and a compensating thermal sensitive element; an amplifier circuit 2 for amplifying an output signal from the frost detector 1; a comparator circuit 3 for comparing an output voltage from the amplifier circuit 2 with a set level; an operation detecting circuit 5 for detecting operating conditions of a compressor and a cooling fan 4; and a judging circuit 6 for detecting the amount of frost in accordance with output voltages from the operation detecting circuit 5 and the comparator circuit 3. The output from the comparator circuit 3 is used to detect the amount of frost only when the compressor and the cooling fan 4 are both in operation.

Abstract: A frost detecting device for detecting adhesion of the frost, a slit-like opening is formed on the inside of a container with a hollow portion, a thermally sensitive element such as a thermistor is arranged on the inside of the hollow portion, leads of the thermally sensitive element are mounting to exterior through a penetrating hole provided for a metallic plate, the leads are fixed to the metallic plate, the slit-like opening is blocked by adhesion of the frost. An inside of the container is interrupted from ambient atmosphere, a temperature on the inside of the container drops, a quantity of adhesion of the frost can be detected by detecting difference in temperature between non frost state and adhesion of the frost state. Further two containers are provided.