摘要:
The present invention relates to a vehicle with a millimeter wave radar by which not only a distance and a relative velocity can be measured but also traffic information of other various kinds can be obtained. A reflector (4a) which is installed at a predetermined position (5) near a road along which the vehicle (1) is traveling and changes the reflection intensity of a reflected wave (3b) every predetermined period of time to indicate a road state (X) near the predetermined position (5) and traffic information with the change (N1), a memory unit (6) which is mounted on the vehicle (1) and in which the change (N1) and an operation command (S1) of the vehicle (1) based upon the change (N1) are stored beforehand, being made to correspond to each other, and a control unit (8) which is mounted on the vehicle (1), reads the operation command (S1) corresponding to the change (N1) detected by the millimeter wave radar from the memory unit (6) and supplies the read operation command (S1) to a vehicle operating means (7) of the vehicle (1) to operate the vehicle (1) are provided.
摘要:
The present invention relates to a vehicle with a millimeter-wave radar capable of accurately detecting stationary objects around the vehicle while positively accepting ground clutter. Accordingly, the vehicle is provided with a millimeter-wave transmitting/receiving antenna (2F) fixed thereto with the center (C) of an antenna beam directed to a road surface (5), and a discrimination element (6) for classifying detected objects (4) by discriminating between objects (4a) the distance (L) to which varies with a movement of the vehicle and objects (4b) the distance (L) to which does not vary with a movement of the vehicle.
摘要:
The present invention relates to a vehicle with a millimeter-wave radar capable of traveling without incurring ground clutter and without the influence of pitching of the vehicle. Accordingly, a millimeter-wave transmitting/receiving antenna (2) fixed on the front surface of the vehicle (1) has an antenna beam width (.theta.) of about 4 degrees, an antenna fixing height (h) measured from a ground surface of about 1 meter to 2 meters, and a horizontal angle (.beta.) of a center (C) of the antenna beam of not less than -4 degrees. This vehicle may also be provided with a storage element (231) for storing course data (A) for the vehicle (1) in advance, an extraction element (232) for extracting a superimposed object (P3), and an identification element (233) for comparing the superimposed object (P3) with the course data (A) and identifying the superimposed object (P3).
摘要:
An electrode structure of a metallic particle detecting sensor capable of detecting with high efficiency metal powders floating in a wide range in an oil tank. The electrode structure is formed by opposing, on a substrate, a pair of electrodes (1, 2), formed of thin film metals of such as Ta, W, Pt, Cr, Au or the like, having combed (toothed) structures with their respective teeth being meshed or interdigitated with each other.
摘要:
To provide a quartz glass tool, for silicon wafer heat treatment, having a transparent grooving face, which is free from the deposition of particles of a transition metal element foreign material derived from glass dust or diamond blade produced by breakdown of acute irregularities based on opening of very small concaves and convexes and microcracks, causes no significant change in dimension also in cleaning with hydrofluoric acid, and can maintain a high degree of cleanness even after use of a long period of time, and to provide a process for producing the same. A quartz glass tool for silicon wafer heat treatment, comprising a wafer mounting member having a grooving face formed by machining, characterized in that the whole grooving face of the wafer mounting member is transparent, the surface roughness is 0.03 to 0.3 μm in terms of center line average roughness (Ra) and 0.2 to 3.0 μm in terms of maximum roughness (Rmax), and a change in center line average roughness and maximum roughness after etching with a 5% aqueous hydrogen fluoride solution for 24 hr is not more than 50%. A process for producing a quartz glass tool for silicon wafer heat treatment, comprising roughly machining a wafer mounting member with a diamond blade having a rough particle size, conducting remachining with a diamond blade having a finer particle size than the above diamond blade, and then subjecting the inside of the groove to firing finishing.
摘要:
To provide a quartz glass tool, for silicon wafer heat treatment, having a transparent grooving face, which is free from the deposition of particles of a transition metal element foreign material derived from glass dust or diamond blade produced by breakdown of acute irregularities based on opening of very small concaves and convexes and microcracks, causes no significant change in dimension also in cleaning with hydrofluoric acid, and can maintain a high degree of cleanness even after use of a long period of time, and to provide a process for producing the same. A quartz glass tool for silicon wafer heat treatment, comprising a wafer mounting member having a grooving face formed by machining, characterized in that the whole grooving face of the wafer mounting member is transparent, the surface roughness is 0.03 to 0.3 μm in terms of center line average roughness (Ra) and 0.2 to 3.0 μm in terms of maximum roughness (Rmax), and a change in center line average roughness and maximum roughness after etching with a 5% aqueous hydrogen fluoride solution for 24 hr is not more than 50%. A process for producing a quartz glass tool for silicon wafer heat treatment, comprising roughly machining a wafer mounting member with a diamond blade having a rough particle size, conducting remachining with a diamond blade having a finer particle size than the above diamond blade, and then subjecting the inside of the groove to firing finishing.