摘要:
The absolute angle calculation apparatus includes a calculation circuit calculating an absolute angular position based on a spatially modulated component in a photoelectrically-converted signal string. The calculation circuit includes a photoelectrically-converted signal string storage storing previous and current photoelectrically-converted signal strings obtained, for interpolating the absolute angular position, within a set time shorter than an absolute angle calculation time required to calculate the absolute angular position; a correlation detection circuit detecting a correlation between the previous and current photoelectrically-converted signal strings in the photoelectrically-converted signal string storage and detecting a shift amount therebetween; and an interpolation calculation circuit interpolating an inter-pattern absolute angular position equivalent value based on the shift amount obtained by the current measurement. The calculation circuit calculates an interpolated angle based on the shift amount and the absolute angular position equivalent value, adds the calculated interpolated angle obtained at the current measurement to the absolute angular position obtained at the previous measurement to calculate a current absolute angular position.
摘要:
A computer that can easily identify which setting items are enabled and which setting items are not enabled when conducting setup setting operations, and can efficiently conduct correct setup. Setup history information is stored when the use environment settings are executed in the computer, the user and/or others can identify and display in an easily recognizable state the setting items from among many setting items in which the setting values set during the setup setting operation are not reflected in the use environment of the computer.
摘要:
An optical pickup device is provided which includes a first diffraction grating (45) that splits a light beam emitted from a light-emitting/-detecting element (31) into a zero-order light beam and positive and negative first-order light beams, a second diffraction grating (46) that diffracts return light from an optical disk (2) for traveling along a light path separate from that of the outgoing light, and a third diffraction grating (47) that corrects the deviation of the light path by diffracting the positive first-order light beam diffracted by the second diffraction grating (46). The light-emitting/-detecting element (31) provides a focusing error signal FE by detecting the negative first-order light beam, and a tracking error signal by detecting return portions of the positive and negative first-order light beams from the first diffraction grating (45).
摘要:
Whereas for each propeller blade of a radiator fan, an attachment angle θ1 at a propeller blade base portion, projected onto a plane parallel to an attachment surface of the propeller blades with respect to the boss is set in a range of 35 to 45°, an attachment angle θ2 of a propeller blade tip portion is set in a range of 15 to 22°. Seven propeller blades and a chord length Ct of the propeller blade tip portion, and an outer circumference length π×Df of the propeller blades are set to satisfy a relationship 0.65
摘要:
The present invention comprises an illumination portion (11), which is disposed in a surveying machine body (8), for illuminating measurement light toward a reflector (2), a light receiving portion (12), which is disposed in the surveying machine body (8), having an image sensor for receiving a reflection light image (M0) of the measurement light illuminated toward the reflector (2), arithmetic means (37) for calculating a position in an area (Q2) of the image sensor (27) for the reflection light image (M0) from the reflector, and a rotation mechanism for rotating the survey machine body (8) so as to position the reflector (2) on a light receiving optical axis (O2) of the light receiving portion (12) based on the position obtained by the arithmetic means (37), and a light receiving area (Q3) which is a smaller area than the area (Q2) of the image sensor (27) and has the light receiving optical axis (O2) as a center is provided in the area (Q2) of the image sensor (27).
摘要:
Disclosed is an optical head in which position adjustment of a photodetector light receiving surface or component parts may be simplified, production costs may be reduced and operational reliability may be improved. The optical head includes a light source 22, radiating light of a preset wavelength, an objective lens 27 for condensing the outgoing light from the light source 22 on an optical disc 2 and for condensing the return light from the optical disc 2, a beam splitter 25 for branching the optical path of the return light reflected by the optical disc 2, and for collimating the branched return light so as to be parallel to the outgoing light from the light source 22, a composite optical component including a splitting prism 30 arranged on a site of incidence of the branched return light for spatially splitting the return light, and a light receiving unit for receiving plural return light beams spatially split by the splitting prism 30 for producing focusing error signals.
摘要:
An angular rate sensor is characterized by having electrodes constituting an exciting unit for providing a vibrator with vibration, an electrode constituting a means for detecting a vibration level of the vibrator, an electrode constituting a first detection means for detecting Coriolis' force generated responsive to an angular rate, a second detecting electrode for detecting a signal of reverse polarity to that of the first detecting electrode, a driving circuit for taking as an input a signal from the electrode for detecting the vibration level and outputting a signal to the electrodes, and a first detection circuit and a second detection circuit for taking respective inputs of detected signals from the first detecting electrode and the second detecting electrode.
摘要:
The present invention provides novel benzimidazole derivatives or salts thereof represented by the general formula, ##STR1## wherein R.sup.1 is a hydrogen atom or a halogen atom; R.sup.2 is a phenyl-lower alkyl group; R.sup.3 is a heterocyclic group selected from the group consisting of an indolyl group, indolinyl group, 1H-indazolyl group, 2(1H)-quinolinonyl group, 3,4-dihydro-2(1H)-quinolinonyl group and 1,4-benzoxazinyl group; A is a lower alkylene group; n is 0 or 1.The benzimidazole derivatives or salts of the present invention are effective agents for treating various arteriosclerotic diseases.
摘要:
A predetermined number of sectional planes are successively scanned, starting with a sectional plane in an initial position, by shifting a direction of X-ray emission from an X-ray emitting device. A reset operation is effected, after scanning the predetermined number of sectional planes, to switch the direction of X-ray emission to scan a sectional plane in the initial position. An examinee is moved synchronously with the reset operation to set a new sectional plane adjacent the predetermined number of sectional planes to the initial position. A predetermined number of sectional planes are successively scanned, starting with the new sectional plane in the initial position, by shifting the direction of X-ray emission from the X-ray emitting device. After scanning the predetermined number of sectional planes, a reset operation is effected and the examinee is moved to set a new sectional plane adjacent the predetermined number of sectional planes to the initial position. These operations are repeated until all sectional planes are scanned.
摘要:
A magnetic medium in which the non-magnetic layer comprises nickel-copper-phosphorus film containing 20 to 65 wt % of copper, in which layer is formed by electroless plating. The non-magnetic layer does not become magnetic even after heat treatment at 200.degree. C. or above.