pollution risk assessment of heavy metals in the sediments based on triangular fuzzy number theory

in this scheme, the geometrical optical model is constructed using laser triangulation principle.

利用激光三角测量原理，建立了几何光学模型；

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then, the shapes of objects are reconstructed with triangulation.

最后，采用三角测量原理得到被测物体的面形。

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aiming at the requirement of liquid-level measurement for stereolithography ( sl), the paper put forward a new method of laser liquid-level measurement based on position sensitive detector ( psd), which could carry out non-contact precision measurement, using laser triangular surveying theory.

针对光固化快速成形液位检测的精度要求，提出了一种基于光电位置传感器（PSD）的新型激光液位检测方法，该方法采用激光三角测量原理，非接触精密测量液位变化。

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this article uses the cd3 laser position transmitter, carries on the circumference radius survey using the triangle range finder principle, and uses the two-dimensional psd position transducer to complete the mechanical vibrations the error correction.

本文采用CD3激光位移传感器，运用三角测距原理进行圆周半径测量，并采用二维PSD位置传感器完成机械振动的误差修正。

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vision sensor based on laser structured light uses triangulation principle which laser structured light plane projects onto the workpiece surface at a certain angle and form feature laser stripe. a ccd camera with filter obtain laser stripe image in weld area.

基于激光结构光的视觉传感器采用三角测量原理[1,2]，激光结构光平面倾斜投射到工件表面形成特征激光条纹，一个带有滤光片的CCD摄像机采集焊缝区域激光条纹图像。

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on the basis of optical triangulation measuring principle, the emphasis of the thesis is to investigate the weak signal measuring method of inner diameter employing the psd.

基于光三角测量原理，文章重点研究了采用光电位置传感器（PSD）进行内径尺寸弱信号检测的方法。

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the main idea of this issue is that irradiating the measured object with laser, light-spot was produced on the surface, and then imaged on ccd surface by triangulation principle.

论文的基本思想是采用激光光源照射被测物体，物体表面产生漫反射光斑，利用三角测量原理，光斑在CCD表面成像。

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based on the principle of optical triangulation, ccd photoelectric conversion technique and principle of single chip microcomputer, the laser digital position detector is designed and made.

激光数字化位移测量仪是基于光学三角测量原理、CCD光电转换技术及单片机原理开发设计出来的。

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a kind of using the laser and ccd photoelectron technology fast auto-measurement method for the car body curved surface is provided in this paper.

根据光学三角测量原理提出一种应用激光和CCD光电子技术非接触车身曲面快速自动跟踪曲面轨迹的等距离随动测量方法。

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according to the triangle measuring principle, a binocular stereo vision sensor made of one laser line projector and two ccd cameras is studied.

研究了按照激光三角测量原理由1个线激光器及2个CCD摄像机组成的双目视觉测量传感器。

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ccd micro-displacement measuring system is an ultra high accuracy non-contact laser displacement device on the basis of trigonometry theory.

CCD激光微位移测量头是利用三角法原理设计的一种高精度非接触激光微位移传感器。

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based on the principle of optical triangulation, ccd photoelectric conversion technique, the system is designed.

该系统是基于光学三角测量原理，CCD光电转换技术设计出来的。

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professor fewster used trigonometry to show that the balloon had been at a height of only about 100ft and had been less than 1000ft from the pigs when it fired its burner 。

福斯特教授运用数学中的三角原理证明出热气球当时的飞行高度只有100英尺（约30.5米），热气球的燃烧炉距离猪圈不到1000英尺（约304.8米）。

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on the basis of optical triangulation theory, the analytical formulas of discernment error are derived, and the discernment error for trapezoid cross-section of coal heap with different height are calculated.

本文根据光学三角原理，导出鉴别误差解析表达式，并对不同高度梯形截面煤堆鉴别误差进行计算；

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for inspecting the 3d shape and appearance of the inner surface of long and tiny pipe, a new type of sensor was proposed based on the principle of optical triangulation.

为了实现长、细管道内表面三维形貌检测，基于光学三角原理研制了一种新型检测器。

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a new algorithm based on the triangle principle is presented. only 1~ 2 times of calculations are necessary by the new algorithm and the calculating accuracy can be improved.

本文基于三角原理提出一种新算法，一个转折点只需1～2次计算，概念清楚，方法简便，计算精度高。

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after the camera models and the projection of spacial points in two images are gained, the depth of the point can easily be calculated by using the triangle theory.

得到摄像机模型及匹配对后，利用三角原理就能计算出点的深度信息。

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luckily for dan gilbank, he had maths professor, the laws of trigonometry, a lucky photograph and a golfer's laser rangefinder to back up his case 。

丹·吉尔本克就是这样一个幸运的农民，数学教授、三角原理、一张照片还有一个高尔夫球手常用的激光测距仪都帮他赢得了官司。

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when we use impossible figures on the base of penrose triangle principia, participants with developmental dyslexia in chinese condition had significantly more correctness than control group.

在以彭罗斯三角原理构成的不可能图形材料辨识任务中，汉语环境下的发展性阅读障碍患者判断正确性得分显著优于对照组。

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the angle can be calculated based on principle of optical triangulation and so the curvature of corresponding position based on structure parameters.

根据光学三角原理，可以求出该夹角的大小，然后结合检测器的结构参数可以计算出管道相应位置的曲率半径。

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