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| Formation of superconducting articles by electrodeposition |
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| Method for making linings and coatings from soluble cross-linkable perfluorocarbon copolymers |
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Apparatus for measuring a shape
| Details |
Inventors: Sano, Kazuo; Uesugi, Mitsuaki; Harayama, Masami; Okuno, Yoshihiro; Matsunaga, Hiroshi; Matsuju, Yoichi;
Assignee: NKK Corporation (Tokyo, JP)
Primary Examiner: Rosenberger; Richard A.
Assistant Examiner:
Attorney, Agent or Firm: Frishauf, Holtz, Goodman & Woodward
An apparatus for measuring shapes, comprises a scanner, having a plurality of arms for holding an object the shape of which is to be measured, and a turntable to which one end of each of the arms is fixed; and a device for forming a silhouette image of the object including a first optical system which has an optical axis parallel to a rotating axis of the turntable and which has a light source and a light receiving unit confronting each other to allow the object to be in between the light source and the light receiving unit of the first optical system, and a second optical system which has another optical axis substantially at a right angle to the rotating axis of the turntable and which has another light source and another light receiving unit confronting each other to allow the object to be in between the light source and the light receiving unit of the second optical system. A calculating device calculates a shape of the object, based on electric signals converted from an intensity pattern of light which has been formed by the device for forming a silhouette image of the object. |
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DETAILED DESCRIPTION It to an object of the present invention is provide an apparatus for measuring shapes of bent bars or pipes having large bending curves and a number of bending portions in a short time.
In accordance with the present invention, an apparatus for measuring a shape of an object is provided, comprising: scanning means including a plurality of arms for holding an object to be measured and a turntable to which one end of each of the arms are fixed; means for forming a silhouette image of the object, including a first optical system which has an optical axis parallel to a rotating axis of the turntable and which has a light source and a light receiving unit confronting each other to allow the object to be between the light source and the light receiving unit of the first optical system, and a second optical system which has another optical axis almost at a right angle to the rotating axis of the turntable and which has another light source and another light receiving unit confronting each other to allow the object to be between the light source and the light receiving unit of the second optical system; and means for calculating a shape of the object, based on electric signals converted from an intensity pattern of light formed by the means for forming a silhouette image of the object.
The above object and other objects and advantages will become more apparent from the detailed description to follow, taken in conjunction with the appended drawings.
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