摘要:
An object is to reduce the influence of chlorine in plastics when the metal concentrations in the plastics are analyzed. In an X-ray analyzer including an X-ray generating part for irradiating primary X-rays onto a sample and an X-ray detector for detecting an X-ray from the sample, primary X-rays is irradiated onto a plastic sample from the X-ray generating part, the X-ray intensity of chlorine is obtained from the plastic sample by the X-ray detector, and the scattered X-ray intensity where the primary X-ray has been scattered by the plastic sample is obtained by the X-ray detector. A chlorine X-ray intensity ratio calculating means for dividing the X-ray intensity of chlorine by the scattered X-ray intensity to calculate a chlorine X-ray intensity ratio is provided. The calculated chlorine X-ray intensity ratio and the chlorine concentration in the plastic sample have positive correlation each other. A relative chlorine concentration calculating means adapted to calculate the relative chlorine concentration in the plastic sample from the chlorine X-ray intensity ratio is provided.
摘要:
An x-ray fluorescence analyzer which accomplishes determination of the center of a circular sample in an xy-plance, in which the sample is placed, by performing a first step of determining a provisional center, a second step of carrying out measurements by scanning in the x-axis direction, a third step of calculating the center of the sample in the x-axis direction, a fourth step of carrying out measurements by scanning in the y-axis direction, a fifth step of calculating the center of the sample in the y-axis direction, and a sixth step of determining coordinates of the center of the sample.
摘要:
A metal film forming method by which a metal film having a desired pattern can be formed with good reproducibility and satisfactory precision. In a metal film forming method for forming a metal film into the desired pattern on a surface of an object by the lift-off method, a resist layer is laminated on the surface of the object, the resist layer is exposed to light with the desired pattern and it is developed. Radio frequency sputtering is then performed against the resist layer so that the opening is deformed into a shape which is suited for the lift-off process. A metal film is then laminated on the surfaces of the resist layer and the metal film forming object. Then the resist layer is subjected to lift-off processing, whereby the metal film can be formed with good precision and satisfactory reproducibility. In this way, such a metal film forming method can be realized that a metal film having the desired pattern can be formed with good reproducibility and satisfactory precision.
摘要:
The center of a band-shaped region on a sample is searched by first coarsely scanning a region of the sample, calculating a tentative center of the sample coarsely from scanning result, collecting data with reference to the tentative center, calculating the center of gravity from the result, and making a correction for raising the precision of the center of gravity determination.
摘要:
A device for charging a filling material (6) with respect to pieces of dough (1) transferred on a transfer conveyor (2) comprising detectors (3) mounted on the transfer conveyor, the detectors being adapted to detect transverse shifts of the pieces of dough on the transfer conveyor and to generate signals representative of the amounts of the shifts; a filling-charging mechanism (4) disposed downstream of the detectors, the filling-charging mechanism having discharging nozzles (48) mounted movably in the transverse direction; and a control device (7) for receiving from the detectors the signals representative of the amounts of the shifts and controlling the discharging nozzles to move transversely amounts equal to the respective amounts of the shift.
摘要:
A rack-pinion steering mechanism for a vehicle, comprises a housing, a pinion shaft having housed within the housing a pinion and first and second supporting portions respectively disposed to opposite sides of the pinion, and a rack shaft having a rack meshed with the pinion within the housing, the rack shaft being shiftable in an axial direction thereof by rotation of the pinion to shift a tie rod axially. The second supporting portion of the pinion shaft is supported within the housing by a corresponding bearing, and the first supporting portion is supported within the housing by a pair of angular rolling bearings having respective inner races fixed to the first supporting portion and respective outer races abutted with one another. The outer races are held with a predetermined pre-load in abutment between a stepped portion of the housing and a nut threaded to the housing and pressing against the outer races but not pressing against the inner races.
摘要:
An inspection apparatus for underground channels such as sewer pipes and conduits for communication or electric cables and many other conduits for various utilities. The apparatus has a television camera which is adjustable in its position in accordance with the size of an underground channel, and a reversible motor which rotates V belts to advance and retract the apparatus in the underground channels. The television camera and the movement of the apparatus is controlled at a remote place.
摘要:
A direct current supply circuit for supplying a direct current to a communication terminal device as well as for repeating information from said communication terminal device to an electronic exchange has been disclosed. Said direct current supply circuit comprises a transformer, which has four primary windings. By arranging the direction of the direct current in said primary windings, saturation of magnetic flux in said transformer can be prevented and thus, the size of the transformer can be reduced.
摘要:
A field-pole magnet manufacturing apparatus manufactures magnet pieces that constitute a field-pole magnet arranged in a rotary electric machine by fracturing the magnet. This manufacturing apparatus includes: a support unit on which the magnet is placed; a fracture unit that is arranged opposite to the support unit across the magnet and is configured to fracture the magnet by pressing the magnet while in contact with the magnet; and a powder removal unit that is configured to remove crush powder produced by fracture of the magnet.
摘要:
A method for producing frozen fresh cream to be whipped, the method including: cooling fresh cream, wherein in the cooling, the fresh cream is cooled to a temperature of −5° C. or lower and is changed from 0° C. to −5° C. for 8 minutes or shorter.