摘要:
An optical encoder having a structure for preventing water or the like from adhering to a V-shaped groove of a code plate of the encoder. The optical encoder has a protective plate made from an optically transmissive material, the protective plate being positioned adjacent to a surface of the code plate on which the V-shaped groove is formed.
摘要:
The present invention relates to an optical sender applicable to WDM (wavelength division multiplexing), and a primary object of the present invention is to prevent interchannel crosstalk in WDM. The optical sender includes a light source for outputting a light beam, an optical modulator for modulating the light beam in accordance with a main signal to output an optical signal, and a unit for shutting down the optical signal when receiving at least one of a power alarm relating to on/off of power supply and a wavelength alarm relating to the wavelength of the light beam.
摘要:
The invention aims to reduce an error occurring due to the mounting condition of an acceleration sensor. In the case of a two-axis sensor, an angle θ is calculated from outputs (x′, y′) that the acceleration sensor produces when known accelerations (x, y) are applied, and the angle θ is stored in a storage device contained in a casing in which the acceleration sensor is housed. In the case of a one-axis sensor, the ratio of the magnitudes of accelerations is stored. The acceleration detected by the acceleration sensor is compensated by using the value stored in the storage device.
摘要:
A rotary disc for use in a rotary encoder includes a signal generation section having a pattern formed thereon to generate a signal indicative of a rotational angle/phase. The signal generation section has a peripheral surface, which is provided with a linear portion usable as an indicator indicative of the rotational angle/phase represented by the signal generation pattern on the signal generation section. A robot hand is employed to hold the linear portion and attach it through an attachment portion of the rotary disc to a rotor shaft of a motor.
摘要:
Trifluoromethylketone compounds of the formula: ##STR1## wherein R.sup.1 is C.sub.1-6 alkyl which has one or two substituents selected from carboxy, esterified carboxy and di-C.sub.1-6 alkylcarbamoyl; phenyl(C.sub.1-6)alkyl, the phenyl moiety of which may have halogen or nitro or amino substituents and the alkyl moiety of which may have carboxy or esterified carboxy substituents; halo-phenyl; morpholino; or morpholino(C.sub.1-6)alkyl, R.sup.2 and R.sup.3 are each C.sub.1-6 alkyl, X is --or --NH--, and ##STR2## and pharmaceutically acceptable salts thereof are useful for inhibiting human elastase.
摘要:
An optical encoder, including a light emitting section; a light receiving section; and a resinous code plate disposed movably relative to the light emitting section and the light receiving section. The resinous code plate includes, on the plate face thereof, a plurality of tracks respectively provided with molded code-pattern surfaces different from each other, and a local structured-surface area formed between the tracks arranged side-by-side relative to each other, the local structured-surface area possessing a surface configuration different from the molded code-pattern surfaces of the tracks. The molded code-pattern surface of each of the tracks includes a flat surface area and an irregular surface area, adjacent to each other as seen in the extending direction of the track. The local structured-surface area is formed between the flat surface area of the molded code-pattern surface of one track and the irregular surface area of the molded code-pattern surface of another track arranged side-by-side relative to the one track. The irregular surface area of the molded code-pattern surface includes a first linear structure extending in a predetermined direction, and the local structured-surface area includes a second linear structure extending in a direction intersecting the first linear structure of the irregular surface area.
摘要:
An optical transmitter comprises an amplitude modulation unit performing amplitude modulation of only a one-side amplitude of a main signal with a low-frequency signal having a predetermined frequency. An optical modulator receives an input signal generated after the one-side amplitude modulation, and modulates an incoming light in response to the received signal in accordance with a predetermined modulation-characteristic curve to output an optical output signal. An operating point control unit applies a predetermined bias voltage to the optical modulator to control a level of the input signal substantially applied to the modulation-characteristic curve so that the one-side amplitude of the main signal is applied to a minimum portion of the modulation-characteristic curve of the optical modulator.
摘要:
A rotary encoder easily position-adjusted in relation to a rotary shaft and is reduced in accuracy deterioration attributable to rotational unstableness and the like which is caused after attachment to the rotary shaft. The encoder is a device attached to the rotary shaft to outputting signals with the rotation of the shaft. The encoder includes a rotary disk, a detector for detecting rotational position of the rotary disk, a disk holder for fixedly attaching the rotary disk to the rotary shaft, and a housing for fixing the detector such that the detector is opposed to the rotary disk. The encoder comprises a retainer attachable to and detachable from the disk holder and the housing for retaining positional relation between the disk holder and the housing.
摘要:
In order to provide a roll connector structure for a vehicle in which there is no complicated or complex wiring in the steering wheel and the space within the steering wheel can be utilized efficiently, a roll connector structure for a vehicle including a stator side casing which is fixed to a steering column, a rotor side casing which is mounted to the stator side casing and rotates integrally with a steering wheel, and a cable which is accommodated between the stator side casing and the rotor side casing, wherein at least one steering switch is connected to the rotor side casing without wiring, is provided.
摘要:
A gear mechanism and webbing retractor having a compact size in which a pinion is prevented from being damaged when a large initial driving force is applied from a gear. When a sensor detects an emergent deceleration of a vehicle, a piston driving device is actuated so as to move a rack at its standby position in a direction to a pinion. When the rack is located at the standby position, a tooth face on a side near a front end, of a front end tooth thereof is in contact with a pressure receiving surface of the initially driving member. The rack is moved along a pitch line in the direction to the pinion so that the front end tooth presses the pressure receiving surface. As a result, the initially driving member converts the initial driving force from the rack to a rotation force thereby rotating the pinion in the taking-up direction.