Grant-in-Aid for Developmental Scientific Research (B)
|Allocation Type||Single-year Grants|
|Research Institution||Keio University(1994)|
Tomakomai National College of Technology(1993)
AOYAMA Hideki Keio Univ., Science and Technology, Assistant Professor, 理工学部, 専任講師 (40149894)
SAWABE Masaji Mitutoyo Co., Tsukuba Laboratory, Director, 筑波研究所, 取締役所長
KISHINAMI Takeshi Hokkaido Univ., Dept.of Engineering, Professor, 工学部, 教授 (00002048)
MIYOSHI Takashi Osaka Univ., Dept.of Engineering, Professor, 工学部, 教授 (30001796)
沢辺 雅二 (株)ミツトヨ, 筑波研究所, 所長
|Project Period (FY)
1993 – 1994
Completed(Fiscal Year 1994)
|Budget Amount *help
¥1,700,000 (Direct Cost : ¥1,700,000)
Fiscal Year 1994 : ¥400,000 (Direct Cost : ¥400,000)
Fiscal Year 1993 : ¥1,300,000 (Direct Cost : ¥1,300,000)
|Keywords||Non-contact measurement / Position vector / Normal vector / Autonomous measurement / Curved surface / Computer model|
This research project was carried out in 1993 and 1994 and the following results are obtained.
(1)Design and theoretical analysis of sensor-element
In order to simultaneously detect the position vector and the unit normal vector of a measured point in non-contact, a sensor-element which has one emitting optical fiber with micro collimator lens and eight receiving optical fibers was proposed. And its characteristics and performance were clarified by theoretical analysis.
(2)Development of the probe
In order to avoid the shadow effect, a probe which is consists of the thirteen sensor-elements is designed. And, in this project, a probe with the five sensor-elements was developed.
(3)Construction of automatic calibration system
An automatic calibration system for the developed probe was constructed by controlling a NC index and a three coordinates measuring machine by an external computer.
(4)Development of data acquisition system and data processing system
The data acquisition system which dynamically selects a sensor-element to project a beam from the emitting fiber and feeds into signals obtained from receiving fibers was developed. In addition, the data processing system which recognizes the position vector and the unit normal vector of a measured point from acquired data.
(5)Development of autonomous measurement system
The measurement system which autonomously measure an unknown model is developed by combining the developed probe, the data acquisition system, the data processing system, and a three coordinate measuring machine.
(6)Development of computer model constructing system
A basic system which recognizes surfaces (flat plane, cylinder, sphere, circular cone, circular ring, and sculptured surface) forming a physical model and construct the shape as computer model is developed.