摘要:
A system and method are used to form incoherent beams from a coherent beam. A system comprises a source of radiation and a reflective loop system. The source of radiation produces a coherent or partially coherent beam. The reflective loop system received the partially coherent beam and reflects the partially coherent beam through a loop, or alternatively through non-overlapping loops, to form an incoherent beam.
摘要:
An imaging optical instrument causes light emitted from a plurality of light sources arranged adjacent an object to image on recording surfaces of a photosensitive or thermosensitive material. The optical instrument includes a two-sided telecentric optical system having a first lens disposed adjacent an entrance end of a lens barrel, and a second lens disposed adjacent an exit end of the lens barrel, and an aperture stop disposed adjacent a meeting point of a rearward focus of the first lens and a forward focus of the second lens. The aperture stop has an aperture formed centrally thereof for allowing passage of beams that should contribute to image formation, and a refracting portion surrounding the aperture for refracting beams that should be intercepted and causing these beams to leave the lens barrel from the exit end thereof.
摘要:
Electrocardiogram data and acceleration data obtained by a portable electrocardiograph of each patient are transmitted to a radio base station, and transmitted from the radio base station to a hospital computer via a public network, a line L, and a TA. Electrocardiograms and accelerations of a plurality of patients are displayed on the screen of the hospital computer based on the electrocardiogram data and acceleration data in real time. In the portable electrocardiograph, a communication device and an interface unit for communication are separated from other components by a ground plane, and an electrocardiogram measurement device is separated from the other components by a ground plane. Two of the ground planes are provided between the communication device and the interface unit for communication and the electrocardiogram measurement device.
摘要:
A system and method are used to form incoherent beams from a coherent beam. A system comprises a source of radiation and a reflective loop system. The source of radiation produces a coherent or partially coherent beam. The reflective loop system received the partially coherent beam and reflects the partially coherent beam through a loop, or alternatively through non-overlapping loops, to form an incoherent beam.
摘要:
To estimate a fluctuation component of the torque generated at the motor accurately, a motor control device (3) which controls a motor with a stator having armature winding and a rotor having a permanent magnet is provided to include a torque fluctuation component estimation unit for estimating a torque fluctuation component generated at the motor based on flux-linkage of the armature winding and an armature current that flows the armature winding. The torque fluctuation component estimation unit estimates the torque fluctuation component (Trp) based on an inner product (Fd·id+Fq·iq) of a flux-linkage vector which is a vectorial representation of the flux-linkage and a current vector which is a vectorial representation of the armature current.
摘要:
To estimate a fluctuation component of the torque generated at the motor accurately, a motor control device (3) which controls a motor with a stator having armature winding and a rotor having a permanent magnet is provided to include a torque fluctuation component estimation unit for estimating a torque fluctuation component generated at the motor based on flux-linkage of the armature winding and an armature current that flows the armature winding. The torque fluctuation component estimation unit estimates the torque fluctuation component, (Trp) based on an inner product (Fd·id+Fq·iq) of a flux-linkage vector which is a vectorial representation of the flux-linkage and a current vector which is a vectorial representation of the armature current.
摘要:
The invention provides a home medical management system comprising a portable unit (1) to be worn on the body of the user for measuring a physiological quantity, and a home unit (4) installed at a home of the user and adapted to wirelessly communicate with the portable unit (1) for judging the physical condition of the user according to the physiological quantity measured by the portable unit (1) and notifying an emergency center (32) of occurrence of an emergency in the event of the emergency occurring. The home unit (2) transmits an unfastening command to an electronic lock (41) fastening the front door of the user's home in the event of an emergency occurring, whereby the lock (41) is unfastened, permitting ambulance attendants to enter the room where the user is present.
摘要:
An impeller for use in a centrifugal blower comprises a hub for receiving a driving torque at a central portion thereof, a shroud of a ring-like shape in plane formed with an opening for air intake at the center thereof and opposed to the hub across a required distance therebetween, and a plurality of vane members interposed between the hub and shroud as circumferentially spaced from one another at required intervals, the impeller having an arrangement wherein an leading edge of each vane member has varied angles (inlet angles) with respect to a tangent line thereat thereby conforming to inflow angles of an air flow guided by the vane member at different points of a span between the shroud and hub.
摘要:
An illumination apparatus is disclosed which efficiently irradiates an irradiation surface without destroying the symmetry of an illuminance distribution at the irradiation surface. A light source is displaced from a center of curvature of a spherical mirror in a direction in a displacement plane which includes an axis of symmetry of the spherical mirror so as to form a light source image at a position off the light source. Due to this, a ray from the spherical mirror passes off the light source (i.e., the position of the light source image), and therefore, a reflection ray is not shielded, absorbed nor otherwise disturbed by the light source, which in turn prevents deterioration in the efficiency of utilization of light. Further, the light source, the spherical minor and the lens are assembled into a light source unit which is inclined at an angle about a principal point of the lens with respect to a central axis of the irradiation surface and displaced a certain distance in a displacement direction which is perpendicular to the central axis. Hence, the illuminance distribution at the irradiation surface is adjusted and the symmetry of the illuminance distribution at the irradiation surface is improved.
摘要:
A stator for a motor in which there are provided a ring-shaped yoke portion iron core (2), tooth portion iron cores (3) arranged at an equal interval on the inner circumferential side of the yoke portion iron core (2), stator coils (5) fitted into slots (4) formed between respective adjacent tooth portion iron cores (3), and bridging portions (31) connecting the inner circumferential sides of the respective adjacent tooth portion iron cores (3), and a rotor (6) is oppositely disposed through a gap on the inner circumferential side of the tooth iron cores (3), thus allowing the ratio of length s in a circumferential direction of the bridging portion (31) to pitch p in the circumferential direction of the tooth portion iron cores (3) to fall within a range of 0.01 to 0.20.Accordingly, the cogging torque of a motor can be lowered without lowering EMF.