Contact type optical fiber gauge head measuring method and apparatus

• Main Authors: XIANG DACHAO, CAI YIHENG, SHI ZHAOYAO
• Format: Patent
• Language: Chinese; English
• Published: 25.11.2009
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The invention relates to a contact type optical fiber gauge head measuring method and apparatus, belongs to the precision measuring and testing technique and instrument and optical precision measurement fields. The basic ideology is that: the light of light source of homogeneous light is transmitted to a far end optical fiber ball by a single optical fiber, and then is reflected back by the reflecting film of the optical fiber ball outer layer, then enters into the peripheral received optical fiber bundle to the image detector of the rear end through an optical system, received light spots can be recognized by the digital image processing, if the front end optical fiber ball touches the object to be measured, the transmitting optical fiber can generate the bending deformation, thereby resulting in the reflected light intensity to generate variation to reflect to the variation of the light spot image, the space geometric amount information of the object to be measured can be extracted from the light spot varia