Abstract: A method of manufacturing electrodes for a flat heat generator is provided for creating electrodes in an arbitrary shape on an arbitrary site of an arbitrarily shaped flat heat generator, to allow a required portion to generate heat, and to allow a heat source to move. The method includes the steps of forming a negative film for ultraviolet exposure masking from a master which has a set of electrodes for the flat heat generator designed in an arbitrary shape and at an arbitrary site, forming a thin-film member including an uncured portion of epoxy film, by irradiating the thin-film member with ultraviolet rays through masking of the negative film, dissolving the uncured portion of epoxy resin with a developing solution to form the set of electrodes, and depositing a metal on the set of electrodes through an ionization reaction within an electrolytic solution bath to from an electrodes.

Abstract: A highly reliable, simple-structured and low-cost thermal flowmeter is provided. The thermal flowmeter in an embodiment according to the present invention includes a planar heating element located to surround a part of an outer side surface of a flow path; first and second temperature detection elements located on the planar heating element at a prescribed interval; and electrodes located at both of two ends of the planar heating element. The planar heating element contains a carbon material and cellulose fiber.

Abstract: A method of manufacturing electrodes for a flat heat generator is provided for creating electrodes in an arbitrary shape on an arbitrary site of an arbitrarily shaped flat heat generator, to allow a required portion to generate heat, and to allow a heat source to move. The method includes the steps of forming a negative film for ultraviolet exposure masking from a master which has a set of electrodes for the flat heat generator designed in an arbitrary shape and at an arbitrary site, forming a thin-film member including an uncured portion of epoxy film, by irradiating the thin-film member with ultraviolet rays through masking of the negative film, dissolving the uncured portion of epoxy resin with a developing solution to form the set of electrodes, and depositing a metal on the set of electrodes through an ionization reaction within an electrolytic solution bath to from an electrodes.

Abstract: The present invention provides a highly corrosion-resistant diaphragm pressure sensor capable of obviating the effects of temperature drift that arises when a pressure-travel coefficient changes with temperature of a fluid whose pressure is sensed, and a method of manufacturing the same. A fluororesin thin film diaphragm pressure sensor comprises a pressure sensing element (10, 20) having a pressure receiving part with a deposition electrode formed on each of the opposing faces of sapphire or alumina ceramic diaphragms which are arranged in opposing relation, and a welding portion (10A, 20A) on a part of each of the surfaces of the diaphragms; and a fluororesin base (41, 61) for securing the pressure sensing element at the welding portion of the pressure sensing element. The pressure sensing element is coated with a fluororesin thin film having a cross-linked structure, and the pressure sensing element and the fluororesin base are welded together via the fluororesin thin film having a cross-linked structure.

Abstract: There is provided a highly accurate electrical capacitance diaphragm pressure sensor capable of reducing temperature drift that arises when a pressure-travel coefficient changes with temperature variations of a fluid whose pressure is sensed.

Abstract: A compact and highly accurate pressure sensor, and a method of fabricating the same are provided by improving functioning of a diaphragm which acts as a means for sensing a fluid pressure.

Abstract: There is provided an improved load transducer type metal diaphragm pressure sensor capable of accurately sensing pressures, which is low in cost, easy to fabricate, and suitable for mass-production. The metal diaphragm pressure sensor (1) comprises a disc-shaped metal diaphragm (2) having a pressure element to which a fluid pressure is applied; a strip-shaped beam member (4) of silicone spanning the diaphragm in a direction of the diameter of the diaphragm, said beam member (4) having electrically insulating insulation bases (3) at each of its ends and in its midsection, and being bonded to the metal diaphragm at each of its ends via the insulation bases (3a, 3b); a pin-shaped pivot (5) connected between the midsection of the beam member and the midsection of the metal diaphragm via the insulation base (3c); and a bridge circuit containing diffused resistor elements (6a, 6a′).

Abstract: A diaphragm pressure sensor (1) includes a pressure guide member (3) made of fluoroplastics for the admission of liquid chemicals, pressure of which is measured. A pressure frame (4) made of perfluoroalkoxy resin is integrated with the pressure guide member (3) to form a wetted part 6 of the liquid chemicals. A ceramic diaphragm (8) with built-in pressure sensor (7) is bonded to the surface of the pressure frame (4) opposite to the surface to which pressure is applied. A body (2) is provided for housing the pressure guide member (3), pressure frame (4) and diaphragm (8).