摘要:
A light intensity measurement unit can sample the light intensity of scattered light at time intervals of a certain length corresponding to two times the length of each of small equal length sections, into which a measurement area in an optical fiber is divided. A computation unit can then compute the strain and/or temperature of each of the small sections of the measurement area in the optical fiber, based on the light intensity of the scattered light measured by the light intensity measurement unit from the scattering gain coefficient of the scattered light associated with each of the small sections.
摘要:
A cathode ray tube including a portion whose thickness becomes (2.78+0.0038×D)≦t1≦(3.7+0.0038×D)[mm] where D is a diagonal axis length [mm] between rectangular corner portions of an effective screen of a panel, and t1 is a thickness [mm] at positions which occupy 75% of a length of a body portion extending from a sealing surface of the body portion to a yoke portion along a tube axis direction.
摘要:
A thin flat cathode-ray tube can optimize stress which is generated in each part also when its screen size is increased and maintains high reliability particularly in connection strength in a joint portion between a front glass vessel and a back metal vessel, without deteriorating the joint portion in reliability also in working for mounting electric signal input terminals and an exhaust pipe on the back metal vessel. In the flat cathode-ray tube which is formed by joining side surface portions of the front glass vessel and the back metal vessel with each other, the back metal vessel has the side surface portion of a prescribed width extending along that of the front glass vessel and a bottom surface portion opposed to a fluorescent screen of the front glass vessel, while the bottom surface portion is depressed by a prescribed amount toward the fluorescent portion and a corner portion connecting the side surface portion with the bottom surface portion is at a prescribed radius of curvature.
摘要:
A device for measuring torque in a shaft without contacting the latter. A torque transmitting shaft is formed with at least one detecting magnetically anisotropic region inclined to form an angle with respect to the axis of rotation of this shaft. A detecting coil is disposed on the periphery of the detecting magnetically anisotropic region. When the detecting voltage for the detecting coil changes owing to temperature changes and time-dependent changes, the changes in the detection sensitivity and in the zero point take place, leading to errors during torque measurement. Correct measured values can be obtained by having a device for correcting such changes in sensitivity and zero point.
摘要:
A solar cell includes a silicon substrate, an aluminum electrode that collects electricity from the rear surface of the silicon substrate, and a silver electrode that extracts output from the aluminum electrode. The aluminum electrode includes an opening formed on the rear surface of the silicon substrate. On a side of the opening is formed a notch that recesses parallel to the direction in which principal stress acts in a plane of the silicon substrate. The silver electrode covers at least the opening and the notch of the aluminum electrode.
摘要:
It is an object of the present invention to provide a solar cell with improved mechanical strength without increasing resistance between the electrodes.The solar cell (10) according to the present invention includes a silicon substrate (3), an aluminum electrode (1) that is a first electrode that collects electricity from the rear surface of the silicon substrate (3), and a silver electrode (2) that is a second electrode that takes out output from the aluminum electrode (1). The aluminum electrode (1) has an opening (1a) formed on rear surface of the silicon substrate (3) and a notch (1b) recesses in parallel to the direction in which principal stress acts from the opening (1a) in a plane of the silicon substrate (3), and the silver electrode (2) is formed to cover at least the opening (1a) and the notch (1b) of the aluminum electrode (1).
摘要:
A device for measuring torque in a shaft without contacting the latter. A torque transmitting shaft is formed with at least one detecting magnetically anisotropic region inclined to form an angle with respect to the axis of rotation of this shaft. A detecting coil is disposed on the periphery of the detecting magnetically anisotropic region. When the detecting voltage for the detecting coil changes owing to temperature changes and time-dependent changes, the changes in the detection sensitivity and in the zero point take place, leading to errors during torque measurement. Correct measured values can be obtained by having a device for correcting such changes in sensitivity and zero point.
摘要:
A method of repairing a bearing of a wind turbine generator is provided which is able to more permanently repair a gap which occurred between a constituent member of the wind turbine generator and a bearing ring of the bearing. For example, in the case of repairing the gap 13 between the main shaft outer cylinder 10 of the wind turbine generator 1 and the outer ring 12A of the main bearing 12, the plate 40 is inserted between the main shaft outer cylinder 10 and the outer ring 12A, and also the plate 40 is fixed to an inner circumferential surface of the main shaft outer cylinder 10 by the adhesive agent 41. On the other hand, slip is permitted between the plate 40 and the outer ring 12A of the main bearing 12.
摘要:
A method of repairing a bearing of a wind turbine generator is provided which is able to more permanently repair a gap which occurred between a constituent member of the wind turbine generator and a bearing ring of the bearing. For example, in the case of repairing the gap 13 between the main shaft outer cylinder 10 of the wind turbine generator 1 and the outer ring 12A of the main bearing 12, the plate 40 is inserted between the main shaft outer cylinder 10 and the outer ring 12A, and also the plate 40 is fixed to an inner circumferential surface of the main shaft outer cylinder 10 by the adhesive agent 41. On the other hand, slip is permitted between the plate 40 and the outer ring 12A of the main bearing 12.
摘要:
A method for zero correction in torque sensors, such as magnetostrictive torque sensor and strain gauge type torque sensor. Torque measurement is initiated when absolute values of torque signals are greater than a first set value, sampling measurement is carried out at predetermined intervals after the initiation. After absolute values of the measured torque signal values become lower than a second set value, an average value for a predetermined number of torque signal values whose absolute values are lower than a third set value is set as a new zero. The method permits proper measurement and correction of zero signals from torque sensors employed succesively at locations subject to impulse-like action of a torque load.