摘要:
An encoder device of the absolute position type for outputting a shift position or angle of rotation relative to the absolute position. The device comprises a code plate having first and second grid patterns wherein information is stored as 1 or 0 in a periodic manner at pitches slightly different from each other; first and second sensory arrays for detecting the first and second grid patterns; driving means for driving the sensors relative to the grid patterns and for obtaining an alternating signal from each array; and computation means for measuring the phase angle of the alternating signal from each array, and the phase angle difference therebetween and for calculating the position using such phase angles. Advantageously, the invention is suitable for miniaturization due to its simplicity, relaibility, and efficiency.
摘要:
A quartz thermometer adapted to measure the ambient temperature through detection of a change in the resonance frequency of a quartz resonator due to change in the temperature, wherein a quartz wafer of 0.02 to 0.2 mm thickness is cut from a region of a quartz within -30.degree. to -70.degree. in terms of rotation angle about the X axis of the quartz thereby to form a quart resonator within a range of between -15.degree. to +15.degree. in terms of angle of rotation about the Z' axis within the plane of the quartz wafer; and wherein thin metallic films are formed on the surfaces of the resonator to serve as exciting electrodes. The resonator and electrodes are produced by photolithography and anisotropic quartz etching processes. The resulting quartz thermometer has a large first order temperature coefficient of frequency.
摘要:
A Coriolis flowmeter 10 vibrates a measurement tube through which a fluid subject to measurement flows, detects vibrations including Coriolis force developed in the fluid from the vibrations, and measures a mass flow rate of the fluid from a detection signal. The Coriolis flowmeter is characterized by including fluctuation calculation section 50 that calculates fluctuations from a detection signal SA; status value calculation section 60 that calculates a status value showing a state of air bubbles in the fluid from the fluctuations calculated by the fluctuation calculation section 50, and determination section 70 that determines a state of air bubbles from the status value calculated by the status value calculation section 60.
摘要:
The present invention realizes a screening method and device able to obtain the entire image of a cell as a detailed and accurate (with a good SN ratio) image at high speed by observing the cell image while a Nipkow system confocal scanner is used and the focal position of an objective lens is changed in the optical axis direction. In the present invention, a reagent and a fluorescent marked cell are injected into a well. The focal position is changed in the optical axis direction by using the Nipkow system confocal scanner. Excitation light is irradiated to the well in each focal position, and fluorescent light generated from the cell is received and the degree of activity, and so on, of the cell is measured and displayed on the basis of a slice image of the cell.
摘要:
An apparatus for simultaneously measuring at least the width and thickness of a seamed portion of a can at the same point on the seamed portion. The apparatus comprises a measurement base for receiving the seamed portion of the can thereon, and a reference block secured to the measurement base the reference block including a reference contact portion to contact the outer surface of the seamed portion. A device for measuring the width of the seamed portion is mounted on the reference block and includes a measurement pin cooperating with the measurement base to clamp the seamed portion in the vertical direction. A device for measuring the thickness of the seamed portion is mounted on the reference block and includes a measurement block cooperating with the reference contact portion to clamp the seamed portion laterally. The apparatus may further comprise a device for measuring the can height and/or a device for measuring the countersink depth.
摘要:
A Coriolis flowmeter 10 vibrates a measurement tube through which a fluid subject to measurement flows, detects vibrations including Coriolis force developed in the fluid from the vibrations, and measures a mass flow rate of the fluid from a detection signal. The Coriolis flowmeter is characterized by including fluctuation calculation section 50 that calculates fluctuations from a detection signal SA; status value calculation section 60 that calculates a status value showing a state of air bubbles in the fluid from the fluctuations calculated by the fluctuation calculation section 50, and determination section 70 that determines a state of air bubbles from the status value calculated by the status value calculation section 60.
摘要:
The present invention realizes a screening method and device able to obtain the entire image of a cell as a detailed and accurate (with a good SN ratio) image at high speed by observing the cell image while a Nipkow system confocal scanner is used and the focal position of an objective lens is changed in the optical axis direction. In the present invention, a reagent and a fluorescent marked cell are injected into a well. The focal position is changed in the optical axis direction by using the Nipkow system confocal scanner. Excitation light is irradiated to the well in each focal position, and fluorescent light generated from the cell is received and the degree of activity, and so on, of the cell is measured and displayed on the basis of a slice image of the cell.
摘要:
In continuously blanking a coiled metal sheet, an operator rapidly detects parts of welded connection of a metal sheet without any manual touch of the metal sheet, removes the parts of welded connection and restarts the apparatus for blanking the metal sheet.