High Precision 3D Coordinate Measuring by the Two CCD Cameras System.

Tsutsumi, Hirotaka; Kyusojin, Akira; Nagaya, Masataka; Nokihara, Kazuaki

doi:10.2493/jjspe.64.1752

Cited by 6 publications

(1 citation statement)

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“…In micromachining process, however, the positioning of the cutting tool edge on the surface of the workpiece is technically difficult operation which requires the manual adjustment and takes much time. The contact of cutting edge of micro tool is conventionally detected by means of the force sensor, image processing [1], acoustic emission sensor (AE sensor), supersonic sensor [2] and capacitance type displacement sensor [3]. The weak points of these sensing methods are the influence of the signal noise under highly sensitive detection.…”

Section: Introductionmentioning

confidence: 99%

Sensing Technology of Micro Tool Edge Position by Using the Total Internal Reflection of Laser

Nakazawa

Kakinuma

Aoyama

2007

LEM21

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Micromachining process is effective to manufacture various micro patterns on a micro glass chip which is used for μ-TAS because of possibility for 3D shaping, accurate and fast production and low environment impact compared with chemical one. However the positioning of the edge against the glass workpiece surface is a problem in cutting process. A special technology applying the total internal reflection of a laser beam was proposed to detect the contact of the edge to the surface. The contact was successfully detected with high sensitivity and the cutting depth could be measured in process by using the method.

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Section: Introductionmentioning

confidence: 99%

Sensing Technology of Micro Tool Edge Position by Using the Total Internal Reflection of Laser

Nakazawa

Kakinuma

Aoyama

2007

LEM21

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Design and calibration of a single-camera-based stereo vision sensor

Zhu

2006

Opt. Eng

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<title>Single camera simulating stereo vision measurement technology</title>

Zhu

2006

SPIE Proceedings

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The paper is based on the binocular vision sensor 3D measurement model, and a kind of low-cost single camera model used to measure coordinates in space is introduced. By using optic imaging dexterously, the single camera is imaged as two virtual cameras. Two parallax images which screened by the same object can be collected in the same CCD image surface. And then the 3D information of point can be retrieved. In this paper, the single camera sensor model has been constructed. This method overcame some disadvantages in double-camera systems, such as high system cost, reduce the measurement speed when switching the images of two cameras. This paper has also provided an economical, rapid, useful measurement approach. The experiment indicated the rationality and efficiency of this method.

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High Precision 3D Coordinate Measuring by the Two CCD Cameras System.

Cited by 6 publications

References 0 publications

Sensing Technology of Micro Tool Edge Position by Using the Total Internal Reflection of Laser

Sensing Technology of Micro Tool Edge Position by Using the Total Internal Reflection of Laser

Design and calibration of a single-camera-based stereo vision sensor

<title>Single camera simulating stereo vision measurement technology</title>

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