摘要:
An infrared detector is arranged so that a detection-input processing circuit part including an infrared sensor mounted on a circuit board is housed as isolated from ambient air in a chamber inhibiting any ambient air inflow, for sensing infrared rays emitted from a human body or the like object as condensed by a condenser irrespective of the ambient air conditions, the sensing ability of the infrared sensor the accuracy of which is likely to be easily deteriorated even with a very small change in the ambient temperature can be thereby stabilized, and a highly accurate infrared detection can be constantly achieved.
摘要:
A passive infrared detector including an optical collector releasably attached to a base with a sensor on which incident infrared radiation directed through the optical collector is focused. The sensor is held by a joint member which is pivotally supported on the base and to which said optical collector is releasably attached, whereby the optical collector is rotatable together with the joint member relative to the base for adjustment of its angular position and the optical collector can be alone replaced as necessary without having to replace the base, the sensor and its associated electric circuitry.
摘要:
A process for estimating a particle size segregation in a burden layer at a blast furnace top is disclosed, which comprises measuring a particle size distribution of a burden material before the charging and a layer thickness distribution of the burden layer after the charging, and estimating a particle size distribution at every position in the burden layer charged at the furnace top on the basis of the above measured values, charging conditions and furnace operating conditions according to a simulation model of particle size segregation.
摘要:
Means for mounting a member functioning with a directivity to a mounting station of an associated device or the like. A housing for the member with its functional end surface exposed to the exterior is tapered at the periphery toward the other end to be, for example, hemispherical and rotatably born at diametrally opposed positions adjacent the functional end surface by both ends of a semiarcuate bearing means, the mounting station has a hole including peripherally opposing grooves of a size and shape capable of slidably engaging with the tapered periphery of the housing and receiving semiarcuate body of the bearing means, the housing is inserted in the hole on said the other end side, and the semiarcuate body of the bearing means in the inserted position of the member engages slidably with a resilient means acting to resiliently urge the tapered periphery of the housing against peripheral edge of the hole. In this mounted state, the functional surface of the member is allowed to be manually freely inclined in all 360.degree. directions with respect to the plane of the mounting station to set the directivity and normally stably retained in set inclined position.
摘要:
The present invention provides a manufacturing method for accurate, fine and efficient processing of a work piece to be processed and prevention of graphitization of the work piece to be processed, when sintered diamond is processed by a laser beam.The method provides process comprising steps of (a) irradiating outer circumference of a scribing wheel 2 with a laser beam from the side of the wheel, (b) moving the laser beam relative to the wheel 2, (c) forming continuously along the circumferential direction in the required space fine grooves with openings directed radially on a ridge site, (d) irradiating the laser beam onto the site to be processed at a speed of the laser beam relative to the work piece, and (e) forming the work piece into a minute shape within a depth of less than 200 μm.
摘要:
A pressurizing forming process includes the steps of applying a higher fatty acid-based lubricant on a surface of a metallic workpiece and/or a forming surface of a forming tool, and forming, wherein a lubricating film including metallic soap is formed on a pressurized-and-contacted interface, at which the surface of the metallic workpiece and the surface of the forming tool are pressed against and are brought into contact with each other, in forming the metallic workpiece by pressurizing with the forming tool. The metallic workpiece and/or the forming tool can be heated prior to or in the forming step.
摘要:
An apparatus for effecting, on a metallic member, an electrolytic process such as descaling, electrolytic acid cleaning, passivation, electrolytic polishing, coloring or plating. The apparatus comprises a rotatable cylindrical electrode arranged to oppose the member to be processed, with a gap between them, a paste electrolyte supply device for introducing a paste electrolyte into the gap between the cylindrical electrode and the metallic member, a pad disposed on the outer peripheral surface of the cylindrical electrode and capable of retaining by impregnation the paste electrolyte supplied by the paste electrolyte supply device; an electrical power supply device for causing an electric current to flow between the cylindrical electrode and the member across the paste electrolyte; and a moving device for effecting relative movement between said metallic member and said cylindrical electrode.
摘要:
This invention provides a method of forming a powder compact which can produce a high density compact under a high pressure and at the same time can reduce pressure for ejecting the compact from a die.This method comprises the application step of applying a higher fatty acid lubricant to an inner surface of a heated die, and the compaction step of filling metal powder into the die and compacting the metal powder under such a pressure as to force the higher fatty acid lubricant to be chemically bonded with the metal powder and form a metallic soap coating. Since the metallic soap coating is formed between the die and a compact, friction force between the die and the compact is decreased and ejecting pressure can be remarkably decreased despite of compaction with high pressure. Besides, a high density compact can be obtained owing to the compaction with high pressure.
摘要:
A moving object detecting apparatus of which a plurality of light receiving means arranged to have a common light receiving zone and a plurality of independent light receiving zones are disposed within a single casing together with a light emitting means. Receiving order in the respective light receiving means of reflected light from a moving object within the zones is detected to discriminate moving direction of the object and desired indications are performed responsive to the discriminated direction.
摘要:
Ultrasonic type motion detector which highly reliably detects presence of moving object without being mis-operated by any other physical phenomena in detecting area. Respective frequency levels of transmitted and received wave signals are detected by a detecting section of a quadrature detecting circuit and phase difference detecting circuit, one of the level-detected signals is inverted and combined with the other, both signals are connected through an integrating circuit to a standard voltage source, and a pair of comparators are connected to the standard voltage source in parallel to each other so that an output signal indicative of the presence of object to be detected will be provided in either case when ouptut voltage of the standard voltage source becomes high or low.