摘要:
A method and apparatus for correcting for deterministic jitter in a sequential sampling timebase. The value of a fine analog delay is held at a substantially constant nominal rate during a duration of a counting of a digital clock. A time difference between a trigger at which a fine analog delay starts measuring time and the occurrence of a digital pulse of a stable clock used to count a coarse delay is measured. An input waveform is sampled at a sample time having a nominal delay time. After sampling, a desired compensation time is provided for the sample of the input waveform in accordance with combinations of three independent variables defining a calibration table. The waveform is reconstructed by shifting a delay time of a sampled value of the input waveform from its nominal delay time in accordance with a value defined by the calibration table.
摘要:
A method and apparatus for correcting for deterministic jitter in a sequential sampling timebase, a sample time for the sequential sampling timebase being defined by a time duration of a combination of a fine analog delay and coarse delay determined by the counting of digital pulses of a stable clock. The value of the fine analog delay is held at a substantially constant nominal rate during the duration of the counting of the digital clock. In the method a time difference between a trigger at which the fine analog delay starts measuring time and the occurrence of a digital pulse of the stable clock being used to count the coarse delay is measured. An input waveform is sampled at a sample time having a nominal delay time. After sampling, a desired compensation time is provided for the sample of the input waveform in accordance with a plurality of combinations of three independent variables defining a calibration table, the calibration table having independent variables including the time interval defined by the fine analog delay, the time interval defined by the coarse delay, and the time interval measured between the trigger at which the fine analog delay starts measuring time and the occurrence of the digital pulse of the stable clock being used to count the coarse delay, and the waveform is reconstructed by shifting the delay time of sampled value of the input waveform from its nominal delay time in accordance with a value defined by the calibration table.
摘要:
In the air intake system of an engine which introduces air passed through a cleaner case having filter element therein into a throttle box through a throttle, and distributes the air from the throttle box to each cylinder of the engine by an intake manifold, the throttle is provided in the throttle box such that a center axis of the throttle is provided substantially horizontally and in a center in the vertical direction between the ends on the upstream side of the intake pipes. The intake pipes are provided on both sides of the throttle box and the throttle is connected to the throttle box such that a center axis of the throttle is arranged substantially horizontal and, simultaneously, an intake route for linking the throttle (including the main port) to the filter element is substantially arranged linearly on the center axis of the throttle. Also, the inside of the cleaner case is in the form of a hollow and is divided by a partition into the air cleaner case and a blowby room. The throttle box and the intake manifold are separately formed in advance and then are monolithically connected to each other.
摘要:
An X-ray imaging apparatus includes: an X-ray sensor configured to convert an X-ray to an image signal; a battery configured to supply electric power for driving the X-ray sensor; a battery holder configured to detachably hold the battery; a lock mechanism configured to lock the battery in a state in which it is attached to the battery holder; and a lock releasing mechanism configured to release the lock effected by the lock mechanism, wherein the lock releasing mechanism is configured to release the lock by the lock mechanism through at least two operations performed by the operator.
摘要:
A rectifying device includes: a one-dimensional channel (18) formed with a semiconductor, electrons traveling through the one-dimensional channel; an electrode (26) that applies an effective magnetic field generated from a spin orbit interaction to the electrons traveling through the one-dimensional channel by applying an electric field to the one-dimensional channel, the effective magnetic field being in a direction intersectional to the direction in which the electrons are traveling; and an external magnetic field generating unit (38) that generates an external magnetic field in the one-dimensional channel.
摘要:
A radiation imaging apparatus includes an imaging unit and a handle unit detachably attached to the imaging unit. The imaging unit includes a digital radiation detector including a detection area, a housing incorporating the digital radiation detector, a power arranged on one side surface of the housing, and a display unit arranged on the one side surface and configured to indicate a state of the digital radiation detector. The handle unit includes a frame unit covering at least part of each of three side surfaces other than the one side surface of the housing and a grasping portion forming an opening between the handle unit and at least part of the one side surface, with the handle unit attached to the imaging unit.
摘要:
An X-ray imaging apparatus includes an X-ray generation unit configured to irradiate an object with X-rays in a rectangular shape, and an imaging unit which has a rectangular imaging plane and is configured to receive the X-rays transmitted through the object as an X-ray image, wherein the imaging unit is arranged on a plane which is spaced a predetermined distance apart from the X-ray generation unit and perpendicular to an X-ray reference axis such that a center of an irradiation field and a center of the imaging plane match with each other and rotational angles of the irradiation field and the imaging plane around the X-ray reference axis match with each other, by matching at least three visible light beams which have directionality and are irradiated from the X-ray generation unit, with distance indexes provided in the imaging unit.
摘要:
An X-ray imaging apparatus includes an imaging unit having an imaging unit power feeding mechanism configured to receive electric power from an external device; a pedestal including a pedestal power feeding mechanism configured to feed the electric power to the imaging unit; and a holder configured to position and hold the imaging unit so that a position of the imaging unit power feeding mechanism coincides with a position of the pedestal power feeding mechanism even if the imaging unit power feeding mechanism is moved with respect to the pedestal power feeding mechanism within a predetermined imaging plane.
摘要:
This invention provides substituted heteroaromatic ring derivatives which are represented by a general formula [I] below: ##STR1## [in the formula, R.sup.1 and R.sup.2 may be same or different and each signifies hydrogen, halogen or lower alkyl; R.sup.3 signifies C.sub.3 -C.sub.6 cycloalkyl or cycloalkenyl; R.sup.4 signifies a heteroaromatic ring group which may be condensed with a benzene ring and which has 1 or 2 hetero atoms selected from a group consisting of nitrogen, oxygen and sulfur atoms (said heteroaromatic ring group being optionally substituted with lower alkyl, halogen, lower alkoxy, amino or hydroxymethyl); and X stands for O or NH]or their pharmaceutically acceptable salts.The substituted heteroaromatic ring derivatives of the present invention have selective M.sub.3 muscarinic receptor antagonist activity, and hence they are useful as therapeutic or prophylactic agents which are safe and efficacious with little side effects, of respiratory diseases such as asthma, chronic airway obstruction and pulmonary fibrosis, etc.; urinary diseases which induce such urination disorders as pollakiurea, urgency and urinary incontinence, etc.; and gastrointestinal diseases such as irritable bowel syndrome, spasm of gastrointestinal tract and gastrointestinal hyperkinesis.
摘要:
A radiation imaging apparatus includes an imaging unit and a handle unit detachably attached to the imaging unit. The imaging unit includes a digital radiation detector including a detection area, a housing incorporating the digital radiation detector, a power arranged on one side surface of the housing, and a display unit arranged on the one side surface and configured to indicate a state of the digital radiation detector. The handle unit includes a frame unit covering at least part of each of three side surfaces other than the one side surface of the housing and a grasping portion forming an opening between the handle unit and at least part of the one side surface, with the handle unit attached to the imaging unit.